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Journal articles on the topic 'Scree vegetation'
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1
Tomaselli, Marcello, Michele Carbognani, Bruno Foggi, et al. "Scree vegetation in the northern Apennines (N-Italy)." Phytocoenologia 51, no. 1 (2021): 39–94. http://dx.doi.org/10.1127/phyto/2021/0391.
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Nowak, Arkadiusz, Sebastian Świerszcz, Sylwia Nowak, and Marcin Nobis. "Vegetation Diversity of Screes and Taluses of The Pamir and South-Western Tian Shan in Middle Asia." Folia Geobotanica 56, no. 1 (2021): 43–67. http://dx.doi.org/10.1007/s12224-021-09392-w.
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AbstractThis paper presents the results of phytosociological research on scree vegetation of the Pamir and south-western Tian Shan. We collected 222 phytosociological relevés during field studies conducted in 2015–2019, applying the Braun-Blanquet approach. We identified 21 plant communities on mobile and stabilized screes of colluvial cones, aprons and fans, inhabiting mainly the montane and alpine belts in several ranges (e.g. Peter the First, Alichur, Shugnan, Shachdarian, Darvaz, Rushan, Vanch, Fergana, Kyrgyz and Terskey ranges). As a result we provide the first comprehensive hierarchical syntaxonomic synopsis of scree communities at montane and alpine elevations in the eastern Middle Asia. The collected vegetation relevés represent the majority of the variation among the phytocoenoses of gravel, pebble, cobble and rock block slides and screes in the montane and alpine belts. As a result of field studies and Twinspan analyses, nine associations were identified on screes of the Pamir and western Tian Shan. All these communities were assigned to the Sileno brahuicae-Lactucetalia orientalis Nowak et al. 2021. Additionally, within the nitrophilous compact gravel screes one subassociation of Corydalidetum kashgaricae trigonelletosum gontscharovii was distinguished. In the most arid zone two additional plant associations and one subassociation were identified in gravelly semi-deserts zone. The main factors determining the species composition of the studied associations are scree mobility, rock particle size, elevation above sea level and slope inclination. Our research revealed considerable diversity of scree habitats of montane and alpine belts what might be astonishing regarding harsh environment of this mountainous territory. However, a great number of lineages that evolved here and particularly rich species pool of this habitat in Middle Asia facilitate remarkable diversity among vegetation of taluses and screes. The distinctiveness of species composition is additionally enhanced by high degree of endemism of chasmophytic habitats in the eastern part of Middle Asia. Despite recent developments, the prominent chasmophytic vegetation of Middle Asia still needs thorough studies focused on its relationship to semi-desert, tall-forb and petrophytic communities of high mountains of the Pamir, Hindu-Kush, Kunlun and Central Tian Shan.
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Galaida, K. P., and B. I. Talgamer. "Scree formation on nonmining flank of an opencast and its impact on vegetation restoration." Earth sciences and subsoil use 44, no. 3 (2021): 323–32. http://dx.doi.org/10.21285/2686-9993-2021-44-3-323-332.
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The purpose of the conducted research is to study the regularities of scree formation and assess their impact on self-vegetation of disturbed lands after mining of building stone deposits. The processes of natural formation of scree have been studied, their layering and gravitational alignment have been determined, the factors causing pit bench collapse have been identified. Simulation of the scree formation process allowed to establish the dependence of rock spreading distance on bench height, bench slope angles, as well as on the weight of individual pieces. The slope bench angles with the largest and smallest rock spread distance were found. The simulation showed the influence of the slope bench angles and parameters of the scree formed at the foot of pit benches on the range of debris spread. Three distinct formation stages of scree at the foot of the benches are identified. The angles of transition from one stage of scree formation to another are determined. Recommendations are given to improve the conditions of self-vegetation and minimize the negative factor of scree formation. To form a layer of loose sediments on horizontal bench sites it is proposed to use rocks from scree, which can dramatically reduce the cost of reclamation rather than imported man-made mixture or potentially fertile soils. In order to increase self-vegetation intensity on the flanks of opencasts, it is recommended to increase the bench height and berm width without changing the design angle of the opencast flank slope. To reduce the adverse impact of scree formation on vegetation restoration on the sides at the bench foot, it is proposed to form a trench collecting falling rocks or a rockprotecting wall.
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Kosinski, Marek. "Synecological differentiation of the scree vegetation of the Polish Tatra Mountains." Phytocoenologia 31, no. 4 (2001): 499–520. http://dx.doi.org/10.1127/phyto/31/2001/499.
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Golub, V. B., A. N. Sorokin, and L. F. Nikolaychuk. "(A review) Vegetation of the Czech Republic. 3. Aquatic and wetland vegetation / Ed. by Milan Chytrý. Praga: Academia, 2011. 827 p." Vegetation of Russia, no. 20 (2012): 139–42. http://dx.doi.org/10.31111/vegrus/2012.20.139.
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Published 3-volume «Vegetation of the Czech Republic». The first volume was devoted to the characteristics of herbaceous vegetation and vegetation wastes (Vegetace..., 2007), the second — ruderal, and segetal vegetation of rocks and scree (Vegetace..., 2009). In the third volume an overview of the 10 water classes, aquatic and wetland vegetation.
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Mandžukovski, Dejan, Aco Teofilovski, Marjan Andreevski, Renata Ćušterevska, Rossen Tzonev, and Marius Dimitrov. "Relationships between vegetation of Macedonian pine (Pinus peuce Griseb.) and different types of soils on which it develops." Hacquetia 21, no. 1 (2022): 89–106. http://dx.doi.org/10.2478/hacq-2021-0030.
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Abstract This paper deals with relationships between vegetation of Macedonian pine (Pinus peuce) and soils developed on different parent materials on the territory of North Macedonia. We analysed the floristic composition at localities on limestone, on scree of dolomite marble and on scree of silicate. On limestone and scree of dolomite marble, rendzinas on hard limestone and dolomite have developed, and on silicate parent material brown forest soils. The vegetation was sampled according to the Braun-Blanquet approach. DCA and indicator values were used for ecological interpretation of the vegetation patterns. The mechanical and chemical properties of soil and textural classes were also processed. An evident increased presence of carbonates in the soil of scree of dolomite marble on Nidže Mountain was observed, unlike that on Shar Mountain which has formed on typical limestone. Although it is a forest community dominated by the same species, differences between the massifs, the precipitation regime, geology, differences in soil properties in relation to the appearance of carbonates and pH values, and other factors, result in differences in their floristic composition and are the reason for the distinction between the two groups. On silicate on Nidže Mountain, Macedonian pine forests have also developed on brown forest soils, with a different floristic composition to that of the other group on carbonate (dolomite and limestone).
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Golub, V. B. "(A review) Vegetation of the Czech Republic. 4. Forest and scrub vegetation / Ed. by Milan Chytrý. Praga: Academia, 2013. 551 p." Vegetation of Russia, no. 24 (2014): 154–57. http://dx.doi.org/10.31111/vegrus/2014.24.154.
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Published the last, 4th volume summary "Vegetation of the Czech Republic". The first volume was devoted to herbal and shrub vegetation (Vegetace..., 2007), the second — ruderal, and segetal vegetation of rocks and scree (Vegetace..., 2009), third — water, coastal and marsh (Vegetace..., 2011). In the fourth volume of an overview of natural and semi-natural communities forests and shrubs.
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Lombini, A., C. Ferrari, and B. Carpene. "The Northern Apennine Ultramafic Scree Vegetation as Geochemical Indicator." Giornale botanico italiano 130, no. 1 (1996): 469. http://dx.doi.org/10.1080/11263509609439689.
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Hrivnák, Richard, Michal Slezák, Karol Ujházy, et al. "Phytosociological approach to scree and ravine forest vegetation in Slovakia." Annals of Forest Research 62, no. 2 (2019): 183. http://dx.doi.org/10.15287/afr.2019.1355.
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Abbasov, N., and M. Seyidov. "Vegetation Around the Third Lake of the Batabat Plateau." Bulletin of Science and Practice 11, no. 4 (2025): 52–57. https://doi.org/10.33619/2414-2948/113/07.
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The article examines the vegetation around the third lake of the Batabat Plateau, located in the Shahbuz District of the Nakhchivan Autonomous Republic of Azerbaijan Shahbuz District is one of the territories of the autonomous republic with rich floristic biodiversity. The Batabat Plateau is one of the high-altitude zones distinguished by its diverse flora. Due to the regularities of vertical vegetation distribution in the autonomous republic, steppe, forest, wetland, shrub, meadow, and rocky-scree vegetation types are widespread in this area.
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Belonovskaya, Elena A., Ladislav Mucina, and Jean-Paul Theurillat. "Syntaxonomic And Nomenclatural Notes On The Scree Vegetation Of Caucas Us." Hacquetia 13, no. 2 (2014): 279–84. http://dx.doi.org/10.2478/hacq-2014-0008.
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Abstract We present description of a new class for the high-altitude screes of the Caucasus (the Lamio tomentosi-Chaerophylletea humilis) and two alliances such as the Scrophulario minimae-Symphyolomion graveolentis (Chaerophylletalia humilis, Lamio tomentosi-Chaerophylletea humilis) and the Scrophulario variegatae-Epilobion dodonaei (Epilobietalia fleischeri, Thlaspietea rotundifolii).
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Lombini, A., C. Ferrari, B. Carpenà, and A. Dinelli. "Ecology of the Ultramafic Scree Vegetation of Mount Prinzera (Northern Apennines)." Giornale botanico italiano 128, no. 1 (1994): 478. http://dx.doi.org/10.1080/11263509409437282.
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Maycock, Paul F., and Dianne Fahselt. "Vegetation of stressed calcareous screes and slopes in Sverdrup Pass, Ellesmere Island, Canada." Canadian Journal of Botany 70, no. 12 (1992): 2359–77. http://dx.doi.org/10.1139/b92-296.
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Although calcareous erosional mountain systems such as those in central Ellesmere Island constitute extremely limiting environments and are sometimes even considered to be totally unvegetated, quantitative analysis of vegetation revealed 156 species, 81 of which were lichens. Although cryptogams of such depauperate landscapes in the Canadian High Arctic have often been overlooked in vegetational studies, it was found that lichens serve as reliable ecological markers, and under the most limiting conditions, 11 species occurred as major dominants. The system also supported 37 bryophytes that in poor sites were dwarfed and sterile but that served as dominants under somewhat better conditions. Thirty-eight species of vascular plants were found, 7 of which were major dominants in less limiting environments. A wide range of both environmental factors and plant communities were found under the marginal conditions of the cliff, slope, and scree system. Key words: vegetation, lichens. High Arctic, polar desert, semipolar desert.
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Castillo-Ruíz, Edgar Ulises, Ana Karen Arias-Basilio, Paola Flores-Solis, et al. "Herpetofauna and plants of Pedregal de San Ángel: necessary rest for formidable work." Herpetología Mexicana, no. 6 (December 31, 2023): 99–111. http://dx.doi.org/10.69905/0wsspc81.
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This work is about the importance of vascular plants that notably make up the vegetation cover of a scree ecosystem with the contribution of specific data, and how reptiles and many other species are adapted to the annual cycle from which we all benefit.
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Ciaschetti, Giampiero, Michele Di Musciano, Gianfranco Pirone, Valter Di Cecco, Loretta Pace, and Annarita Frattaroli. "A new pioneer association of detrital substrata of the hilly and low-mountain belts in Central Apennines (Italy)." Plant Sociology 57, no. 1 (2020): 75–84. http://dx.doi.org/10.3897/pls2020571/08.
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Plant communities dominated by Petrosedum ser. Rupestria in Italy have always been referred to the Sedo albi-Scleranthetea biennis Br.-Bl. 1955 class. This group of species was also often found more or less abundant in the garrigue and pasture vegetation. Some unusual plant communities dominated by Petrosedum rupestre (L.) P.V.Heath with a conspicuous presence of typical species of scree vegetation were found and sampled in the Abruzzo region, on more or less mobile debris. In order to classify such communities, syntaxonomic, structural, chorological and ecological analyses have been performed. All the Petrosedum ser. Rupestria dominated communities reported in Italy have been compared with the sampled vegetation. A new perennial pioneer association, linked to more or less mobile detrital substrata of the hilly and lower-mountane belts of the calcareous Central Apennines has been here described with the name Linario purpureae-Petrosedetum rupestris. Based on the syntaxonomic analysis, this association has been included in the Linarion purpureae alliance (Scrophulario bicoloris-Helichrysetalia italici order). The Linario-Petrosedetum has been divided into two subassociations: a typical one named petrosedetosum rupestris and a thermophilous one of the lower altitudes named teucrietosum flavi. The study revealed the originality of such communities and their appropriate classification in the Thlaspietea rotundifolii class. This is the first record in Italy of a Petrosedum ser. Rupestria-rich community framed in the scree vegetation class.
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Ciaschetti, Giampiero, Musciano Michele Di, Gianfranco Pirone, Cecco Valter Di, Loretta Pace, and Anna Rita Frattaroli. "A new pioneer association of detrital substrata of the hilly and low-mountain belts in Central Apennines (Italy)." Plant Sociology 57 (July 3, 2020): 75–84. https://doi.org/10.3897/pls2020571/08.
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Plant communities dominated by Petrosedum ser. Rupestria in Italy have always been referred to the Sedo albi-Scleranthetea biennis Br.-Bl. 1955 class. This group of species was also often found more or less abundant in the garrigue and pasture vegetation. Some unusual plant communities dominated by Petrosedum rupestre (L.) P.V.Heath with a conspicuous presence of typical species of scree vegetation were found and sampled in the Abruzzo region, on more or less mobile debris. In order to classify such communities, syntaxonomic, structural, chorological and ecological analyses have been performed. All the Petrosedum ser. Rupestria dominated communities reported in Italy have been compared with the sampled vegetation. A new perennial pioneer association, linked to more or less mobile detrital substrata of the hilly and lower-mountane belts of the calcareous Central Apennines has been here described with the name Linario purpureae-Petrosedetum rupestris. Based on the syntaxonomic analysis, this association has been included in the Linarion purpureae alliance (Scrophulario bicoloris-Helichrysetalia italici order). The Linario-Petrosedetum has been divided into two subassociations: a typical one named petrosedetosum rupestris and a thermophilous one of the lower altitudes named teucrietosum flavi. The study revealed the originality of such communities and their appropriate classification in the Thlaspietea rotundifolii class. This is the first record in Italy of a Petrosedum ser. Rupestria-rich community framed in the scree vegetation class.
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Gurbanov, Elshad, and Faiqa Aslanova. "ROCK AND SCREE VEGETATION OF THE ATROPATAN PROVINCE (WITHIN THE REPUBLIC OF AZERBAIJAN)." Annali d'Italia 60 (October 25, 2024): 13–16. https://doi.org/10.5281/zenodo.13993001.
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Rock vegetation usually consists of plants living directly on the rock surface, in cracks and in areas that are more or less weathered. Specificity of environmental conditions leads to the emergence of a number of adaptations in rock vegetation. They consist, first of all, in the formation of compact above-ground parts. In this respect, pillowshaped and rosette-shaped plants are particularly characteristic morphological features. Cushion-shaped growth protects plants from mechanical as well as drying effect of wind, promotes accumulation of dust and humus inside the cushion, leads to reduction of temperature fluctuations, promotes accumulation of moisture and reduction of its evaporation.
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Ramiro, Pillco Zolá, Kawagoe Seike, Aliaga Angel, and Mercedes Baptista M. "Geomorphological evolution and sediment yield from scree slopes with projection in the glacier watersheds of Tuni and Condoriri, Bolivia." Sustainable Resources Management Journal 1, no. 1 (2017): 26–35. https://doi.org/10.5281/zenodo.291789.
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This paper describes the sediment yield production from the most active areas in the glacier watershed of Tuni/Condoriri in Bolivia, represented by mobile fans, and based on the short monitored program carried out during rainy season in 2012-2013. The sediment yields in the slopes and temporal analysis of scree slope forms, considering almost 50 years of lapsed, explains geomorphological evolution and changes; therefore the perception should be valid for the rest of catchments over the Cordillera Real in Bolivia. There was found that sediment production from scree slopes at yearly scale is very similar to suspend sediment in one of the mean streams. The first type mostly is retained by the glacier catchments, which means for bed load very rare contribution, but the suspended sediment is evacuated from the catchments; thus this is the only source contributing on the glacier lakes sedimentation. The geomorphological changes will depend on the faster scree slope evolution, also on the extension of the vegetation cover which is increasing on the same time that the glaciers are decreasing due to climate changes. Up to no know the only driving factor explaining the sediment production is related to slopes. Regarding to effective precipitation, the results found is very ambiguous by now.
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Montesinos-Tubée, Daniel B., Antoine M. Cleef, and Karlè V. Sýkora. "The Subnival Vegetation of Moquegua, South Peru: Chasmophytes, Grasslands and Cushion Communities." Ecologies 2, no. 1 (2021): 71–111. http://dx.doi.org/10.3390/ecologies2010005.
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The present work is a phytosociological synthesis and syntaxonomic overview of the vegetation of the highest subnival parts (superpuna) of the open alpine vegetation of the high plateaus (puna) of the Andes of Moquegua, South West Peru, as related to the main environmental gradients. Using TWINSPAN and DCA ordination analysis, 153 phytosociological relevés were analyzed. For each association, subassociation and community, the syntaxonomy, floristic diversity and relation with environmental variables are described. The syntaxonomy and synecology of superpuna vegetation was studied in 19 localities at an altitude of 4450–4800 m. The study area has a pluviseasonal climate with yearly rainfall (December-April). Four main highland vegetation types were distinguished: 1. slope and scree chasmophyte vegetation composed of shrubs, cushions, ground rosettes and grasses, 2. grasslands (grazed and ungrazed) characterized by great species richness in shrubs, cushions, ground rosettes, grasses and herbs, 3. vegetation of plateaus with cushions, shrubs, ground rosettes, herbs and grasses and 4. nitrophilous vegetation with high cover and low species richness. Within the vegetation of the orotropical and cryorotropical bioclimatic belts three phytosociological classes can be distinguished: Argyrochosmetea niveae (chasmophytic vegetation), Calamagrostietea vicunarum (grasslands with cushions), Anthochloo lepidulae-Dielsiochloetea floribundae (highland slopes and plateaus) and a nitrophylous community. One new association from rock and scree slopes was described within the Saxifragion magellanicae (Argyrochosmetea niveae). Within the Calamagrostion minimae, which comprises grasslands with cushions and mat-forming plants, one new association with two subassociations could be distinguished. Within the grassland and cushion associations of the Azorello-Festucion (Calamagrostietea vicunarum), three new associations were described, comprising nine subassociations. In the Anthochloo-Dielsiochloetalia one new and one previously described association and one community are distinguished. In addition, the nitrophilous community of Tarasa nototrichoides and Urtica flabellata has been described. In total the vegetation comprised 172 vascular species belonging to 32 families. Our study provides the first syntaxonomic revision of chasmophytes, cushion associations and high-altitude grasslands in the Andes of North Moquegua. The proposed syntaxonomic scheme contains the associations distributed under similar habitat conditions throughout the Southern Andes of Peru, but also the associations reflecting the local floristic and environmental patterns. The subnival vegetation of Moquegua hosts some rare endangered and/or protected plant species.
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Bricca, Alessandro, Maria Laura Carranza, Marco Varricchione, Maurizio Cutini, and Angela Stanisci. "Exploring Plant Functional Diversity and Redundancy of Mediterranean High-Mountain Habitats in the Apennines." Diversity 13, no. 10 (2021): 466. http://dx.doi.org/10.3390/d13100466.
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We analyzed plant functional diversity (FD) and redundancy (FR) in Mediterranean high-mountain communities to explore plant functional patterns and assembly rules. We focused on three above-ground plant traits: plant height (H), a good surrogate of competition for light strategies, and specific leaf area (SLA) and leaf dry matter content (LDMC), useful indicators of resource exploitation functional schemes. We used the georeferenced vegetation plots and field-measured plant functional traits of four widely spread vegetation types growing on screes, steep slopes, snowbeds and ridges, respectively. We calculated Rao’s FD and FR followed by analysis of standardized effect size, and compared FD and FR community values using ANOVA and the Tukey post hoc test. Assemblage rules varied across plant communities and traits. The High FRH registered on snowbeds and ridges is probably linked to climatic filtering processes, while the high FDH and low FDSLA and FDLDMC on steep slopes could be related with underlying competition mechanisms. The absence of FD patterns in scree vegetation pinpoint random assembly processes which are typical of highly unstable or disturbed ecosystems. Improved knowledge about the deterministic/stochastic processes shaping species coexistence on high mountain ecosystems should help researchers to understand and predict vegetation vulnerability to environmental changes.
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Huang, Xingyi, Yuwei Yin, Luwei Feng, et al. "A 10 m resolution land cover map of the Tibetan Plateau with detailed vegetation types." Earth System Science Data 16, no. 7 (2024): 3307–32. http://dx.doi.org/10.5194/essd-16-3307-2024.
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Abstract. The Tibetan Plateau (TP) hosts a variety of vegetation types, ranging from broadleaved and needle-leaved forests at the lower altitudes and in mesic areas to alpine grassland at the higher altitudes and in xeric areas. Accurate and detailed mapping of the vegetation distribution on the TP is essential for an improved understanding of climate change effects on terrestrial ecosystems. Yet, existing land cover datasets for the TP are either provided at a low spatial resolution or have insufficient vegetation types to characterize certain unique TP ecosystems, such as the alpine scree. Here, we produced a 10 m resolution TP land cover map with 12 vegetation classes and 3 non-vegetation classes for the year 2022 (referred to as TP_LC10-2022) by leveraging state-of-the-art remote-sensing approaches including Sentinel-1 and Sentinel-2 imagery, environmental and topographic datasets, and four machine learning models using the Google Earth Engine platform. Our TP_LC10-2022 dataset achieved an overall classification accuracy of 86.5 % with a kappa coefficient of 0.854. Upon comparing it with four existing global land cover products, TP_LC10-2022 showed significant improvements in terms of reflecting local-scale vertical variations in the southeast TP region. Moreover, we found that alpine scree, which is ignored in existing land cover datasets, occupied 13.99 % of the TP region, and shrublands, which are characterized by distinct forms (deciduous shrublands and evergreen shrublands) that are largely determined by the topography and are missed in existing land cover datasets, occupied 4.63 % of the TP region. Our dataset provides a solid foundation for further analyses which need accurate delineation of these unique vegetation types in the TP. TP_LC10-2022 and the sample dataset are freely available at https://doi.org/10.5281/zenodo.8214981 (Huang et al., 2023a) and https://doi.org/10.5281/zenodo.8227942 (Huang et al., 2023b), respectively. Additionally, the classification map can be viewed at https://cold-classifier.users.earthengine.app/view/tplc10-2022 (last access: 6 June 2024).
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Kučera, Tomáš. "Koncept ekologických fenoménů v interpretaci středoevropské vegetace [Ecological phenomena concept: the interpretation of the Central-European vegetation]." Malacologica Bohemoslovaca 3 (July 26, 2005): 47–77. http://dx.doi.org/10.5817/mab2002-3-47.
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A review of literature referring to floristic, vegetation and habitat diversity in Bohemian Massif has resulted to a revision and detailed classification of ecological phenomena. Each phenomenon represents an open non-hierarchical system of lithological, hydrological, topoclimatic and biotic aberrations, that differ from common features of surrounded “zonal“ environment. Two main groups of ecological phenomena have been distinguished: (i) large-scale ecological geo-phenomena originated by prominent lithological factors, and (ii) meso-scale ecological topo-phenomena produced by local action of hydrology, topoclimate, and air currents. With regard to the first group, the following geo-phenomena play a particular role in the Central European vegetation: (a) sandstone, (b) limestone and dolomite (karst phenomenon), (c) marl (flysch and loess), (d) neo-volcanic, and (e) serpentinite phenomena. With regard to the latter group, the following meso-scale phenomena contribute to the diversity of habitats in landscape scenery: (f) river (or valley), (g) summit, (h) frost hollow, and (i) scree (and glacial cirque) phenomena. The “insular“ feature of the ecological phenomena in vegetation cover is expressed mainly by the occurrence of treeless ecosystems, such as swamps, bogs, marshes, steppes, rock faces and scree ecosystems, etc. Relatively higher species richness can indicate most of ecological phenomena (they should be detected by the distance from the regional species-area curve), and by the presence of rare plant species, especially by the relic and/or endemic species, which survive on extreme habitats due to the lower competition of prevailing dominant woody or graminoid species.
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Kučera, Tomáš. "Koncept ekologických fenoménů v interpretaci středoevropské vegetace [Ecological phenomena concept: the interpretation of the Central-European vegetation]." Malacologica Bohemoslovaca 3 (July 26, 2005): 47–77. http://dx.doi.org/10.5817/mab2005-3-47.
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A review of literature referring to floristic, vegetation and habitat diversity in Bohemian Massif has resulted to a revision and detailed classification of ecological phenomena. Each phenomenon represents an open non-hierarchical system of lithological, hydrological, topoclimatic and biotic aberrations, that differ from common features of surrounded “zonal“ environment. Two main groups of ecological phenomena have been distinguished: (i) large-scale ecological geo-phenomena originated by prominent lithological factors, and (ii) meso-scale ecological topo-phenomena produced by local action of hydrology, topoclimate, and air currents. With regard to the first group, the following geo-phenomena play a particular role in the Central European vegetation: (a) sandstone, (b) limestone and dolomite (karst phenomenon), (c) marl (flysch and loess), (d) neo-volcanic, and (e) serpentinite phenomena. With regard to the latter group, the following meso-scale phenomena contribute to the diversity of habitats in landscape scenery: (f) river (or valley), (g) summit, (h) frost hollow, and (i) scree (and glacial cirque) phenomena. The “insular“ feature of the ecological phenomena in vegetation cover is expressed mainly by the occurrence of treeless ecosystems, such as swamps, bogs, marshes, steppes, rock faces and scree ecosystems, etc. Relatively higher species richness can indicate most of ecological phenomena (they should be detected by the distance from the regional species-area curve), and by the presence of rare plant species, especially by the relic and/or endemic species, which survive on extreme habitats due to the lower competition of prevailing dominant woody or graminoid species.
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Kučera, Tomáš. "Koncept ekologických fenoménů v interpretaci středoevropské vegetace [Ecological phenomena concept: the interpretation of the Central-European vegetation]." Malacologica Bohemoslovaca 3 (May 4, 2005): 47–77. https://doi.org/10.5281/zenodo.3959752.
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A review of literature referring to floristic, vegetation and habitat diversity in Bohemian Massif has resulted to a revision and detailed classification of ecological phenomena. Each phenomenon represents an open nonhierarchical system of lithological, hydrological, topoclimatic and biotic aberrations, that differ from common features of surrounded “zonal“ environment. Two main groups of ecological phenomena have been distinguished: (i) large-scale ecological geo-phenomena originated by prominent lithological factors, and (ii) meso-scale ecological topo-phenomena produced by local action of hydrology, topoclimate, and air currents. With regard to the first group, the following geo-phenomena play a particular role in the Central European vegetation: (a) sandstone, (b) limestone and dolomite (karst phenomenon), (c) marl (flysch and loess), (d) neovolcanic, and (e) serpentinite phenomena. With regard to the latter group, the following meso-scale phenomena contribute to the diversity of habitats in landscape scenery: (f) river (or valley), (g) summit, (h) frost hollow, and (i) scree (and glacial cirque) phenomena. The “insular“ feature of the ecological phenomena in vegetation cover is expressed mainly by the occurrence of treeless ecosystems, such as swamps, bogs, marshes, steppes, rock faces and scree ecosystems, etc. Relatively higher species richness can indicate most of ecological phenomena (they should be detected by the distance from the regional species-area curve), and by the presence of rare plant species, especially by the relic and/or endemic species, which survive on extreme habitats due to the lower competition of prevailing dominant woody or graminoid species.
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Nowak, Arkadiusz, Sylwia Nowak, Marcin Nobis, and Agnieszka Nobis. "Dwarf shrub vegetation of rock ledges and clefts in the Pamir Alai Mountains (Middle Asia: Tajikistan)." Acta Botanica Croatica 75, no. 1 (2016): 109–20. http://dx.doi.org/10.1515/botcro-2016-0010.
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AbstractThe paper presents the results of phytosociological researches on rocky slope vegetation in Tajikistan with the aim to establish a comprehensive syntaxonomical classification system. Field studies were conducted in 2010-2014 in Pamir Alai ranges and Pamirian plateau. Nearly 500 relevés documenting rock and scree vegetation were made according to the Braun-Blanquet method. Numerical analyses of selected 58 relevés representing dwarf shrub vegetation on rock ledges made it possible to distinguish: Ephedro glaucae- Spiraeion baldschuanicae and Ephedrion regeliano-fedtschenkoi alliances, as well as Spiraeetum baldschuanicae, Rhamnetum coriaceae, Pentaphylloidetum parvifoliae and Pentaphylloidetum dryadanthoidis associations, community of Ephedra glauca and community of Rhamnus minuta. The classification of vegetation of dwarf shrubs on rock walls occurring in the Pamir Alai Mts is proposed. Because of the species composition, physiognomy and microhabitat conditions, the plant communities were included into Artemisio santolinifoliae- Berberidetea sibiricae class Ermakov et al. 2006. The main factors determining the species composition of the classified associations seem to be the elevation above sea level.The newly described syntaxa are largely defined by species restricted to very narrow ranges in Middle Asia.
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Wakulińska, Martyna, and Adriana Marcinkowska-Ochtyra. "Multi-Temporal Sentinel-2 Data in Classification of Mountain Vegetation." Remote Sensing 12, no. 17 (2020): 2696. http://dx.doi.org/10.3390/rs12172696.
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The electromagnetic spectrum registered via satellite remote sensing methods became a popular data source that can enrich traditional methods of vegetation monitoring. The European Space Agency Sentinel-2 mission, thanks to its spatial (10–20 m) and spectral resolution (12 spectral bands registered in visible-, near-, and mid-infrared spectrum) and primarily its short revisit time (5 days), helps to provide reliable and accurate material for the identification of mountain vegetation. Using the support vector machines (SVM) algorithm and reference data (botanical map of non-forest vegetation, field survey data, and high spatial resolution images) it was possible to classify eight vegetation types of Giant Mountains: bogs and fens, deciduous shrub vegetation, forests, grasslands, heathlands, subalpine tall forbs, subalpine dwarf pine scrubs, and rock and scree vegetation. Additional variables such as principal component analysis (PCA) bands and selected vegetation indices were included in the best classified dataset. The results of the iterative classification, repeated 100 times, were assessed as approximately 80% median overall accuracy (OA) based on multi-temporal datasets composed of images acquired through the vegetation growing season (from late spring to early autumn 2018), better than using a single-date scene (70%–72% OA). Additional variables did not significantly improve the results, showing the importance of spectral and temporal information themselves. Our study confirms the possibility of fully available data for the identification of mountain vegetation for management purposes and protection within national parks.
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Knott, Robert, Zdeněk Adamec, Barbora Uherková, Jan Kadavý, and Michal Kneifl. "Evaluation of coppice management relics based on coppice stool value variability in the Drahany Highlands." Journal of Forest Science 68, No. 7 (2022): 277–86. http://dx.doi.org/10.17221/74/2022-jfs.
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We assessed the value of coppice stools in connection with selected factors in three different areas of the Drahany Highlands (Czech Republic). The stool value was assessed by evaluating the morphological features. Stools were selected in forest stands with an age of 80 years and older. We analysed the potential influence of twenty-five variables (for example, the exposure, forest vegetation zone, potential natural vegetation, actual or historical owner, edaphic category, etc.) on the stool value. We found that the historical ownership, climatic region, and category of potential natural vegetation significantly affect the coppice stool value. We observed the occurrence of stools with a higher stool value in moderate climatic region type 3 (MT3), in scree and ravine woodlands and in the territory of the historical owners of the Mitrovsky and Salm-Reifferscheid families. According to our results, the probability of the occurrence of coppice stools decreases with an increasing stool value.
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Talebi, Amir, Denys Vynokurov, Farideh Attar, Jürgen Dengler, and Alireza Naqinezhad. "Vegetation of the southern slopes of Mt. Damavand, Iran: a comprehensive phytosociological classification." Vegetation Classification and Survey 5 (December 23, 2024): 301–28. https://doi.org/10.3897/VCS.136825.
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Aims: To provide the first syntaxonomic scheme of the main natural and semi-natural steppic vegetation types along a 3000-m elevational gradient. Location: South-facing slopes of Mt. Damavand, Iran. Methods: A dataset of 330 phytosociological plots of 25 m2 sampled in all main vegetation types of the region was subjected to unsupervised classification with TWINSPAN. After some manual adjustments to maximise the floristic distinctness of clusters, the resulting units were translated into syntaxa at the class, order, alliance and association level. Diagnostic species were determined with phi values as measure of fidelity. The differences in abiotic and vegetation parameters among associations/communities were visualised with boxplots and the environmental gradients associated with the community differentiation via detrended correspondence analysis (DCA). Results: We found four main groups that are ecologically well interpretable and considered at the level of phytosociological classes: rocky habitats (<i>Tanacetalia kotschyi</i>, class unknown), scree habitats (<i>Didymophyso aucheri-Dracocephaletea aucheri</i>), snow-beds (<i>Salicetea herbaceae</i>) and grasslands (<i>Astragalo-Brometea</i>). We distinguished six orders, nine alliances and 18 association-level communities, which were floristically well separated. Many of these syntaxa were new to science. Elevation was the main driver of species composition and formation of the major vegetation groups. Conclusions: This study contributes to advancing the syntaxonomic understanding of the vegetation of Iran. It is particularly valuable as it covers the complete elevational gradient of 3000 m and thus also comprehensively includes the vegetation types of the lower elevations that previously had been rarely studied syntaxonomically in Iran. Furthermore, this study is the first to examine mown (semi-natural) tall herb rich grasslands in Iran, which were assigned to the new alliance <i>Cousinion petrocauli</i>. Since our study was based on a regionally constrained dataset, we could not solve all syntaxonomic issues conclusively. This underscores the need for more comprehensive studies of the vegetation in the entire Alborz Mts as well as other Iranian mountain ranges in the future. Taxonomic reference: Catalogue of Life (Bánki et al. 2024). Abbreviations: DCA = detrended correspondence analysis, ICPN = International Code of Phytosociological Nomenclature (Theurillat et al. 2021), TWINSPAN = two-way indicator species analysis.
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Varricchione, Marco, Valter Di Cecco, Lucia A. Santoianni, et al. "Diagnostic Species Diversity Pattern Can Provide Key Information on Vegetation Change: An Insight into High Mountain Habitats in Central Apennines." Journal of Zoological and Botanical Gardens 2, no. 3 (2021): 453–72. http://dx.doi.org/10.3390/jzbg2030033.
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High mountain ecosystems are hotspots of biodiversity that are highly vulnerable to climate warming and land use change. In Europe, high mountain habitats are included in the EC Directive 92/43/EEC (Habitats Directive) and the identification of practices facilitating effective monitoring is crucial for meeting HD goals. We analyzed the temporal changes in species composition and diversity on high mountain EU habitats and explored if the subgroup of diagnostic species was able to summarize the comprehensive information on plant community variations. We performed a re-visitation study, using a set of 30 georeferenced historical plots newly collected after 20 years on two EU habitats (Galium magellense community growing on screes (8120 EU) and Trifolium thalii community of snowbeds (6170 EU)) in the Maiella National Park (MNP), which is one of the most threatened Mediterranean mountains in Europe. The presence of several endangered species and the availability of a botanical garden, a seed bank, and a nursery, make the MNP an excellent training ground to explore in situ and ex situ conservation strategies. We compared overall and diagnostic species richness patterns over time by rarefaction curves and described the singular aspects of species diversity (e.g., richness, Shannon index, Simpson index, and Berger–Parker index), by Rènyi’s diversity profiles. Diversity values consistently varied over time and across EU habitat types, with increasing values on scree communities and decreasing values on snowbeds. These changes could be associated with both land use change, through the increase of grazing pressure of Apennine chamois (Rupicapra pyrenaica ornata), which determined a rise of nitrophilous species in the scree community, and an increase of grasses at the expense of forbs in snowbeds, and to climate change, which promoted a general expansion of thermophilous species. Despite the two opposite, ongoing processes on the two plant communities studied, our results evidenced that diagnostic species and overall species followed the same trend of variation, demonstrating the potential of diagnostics for EU habitat monitoring. Our observations suggested that the re-visitation of historical plots and the implementation of frequent monitoring campaigns on diagnostic species can provide important data on species abundance and distribution patterns in these vulnerable ecosystems, supporting optimized in situ and ex situ conservation actions.
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Golub, V. B., A. N. Sorokin, and L. F. Nikolaychuk. "(A review) Vegetation of the Czech Republic 2. Ruderal, weed, rock and scree vegetation / Ed. by Milan Chytry. Praga: Academia, 2009. 524 p." Vegetation of Russia, no. 16 (2010): 73–76. http://dx.doi.org/10.31111/vegrus/2010.16.73.
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Ryff, L. E. "Syntaxonomic diversity of dry grassland and phrygana vegetation of the Southern Crimea: preliminary analysis." Plant Biology and Horticulture: theory, innovation, no. 149 (December 10, 2019): 132–46. http://dx.doi.org/10.36305/0201-7997-2019-149-132-146.
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The aim of the work is to revise the prodrome and diagnostic species of the classes of natural dry grassland and phrygana vegetation of the Southern Crimea based on own field studies and modern literature data. Methods. The work is based on the Braun-Blanquet approach to classification of vegetation communities. Higher syntaxonomy units and lists of diagnostic species are given in accordance with “Vegetation of Europe ...” (EuroVegChecklist), nomenclature of syntaxon according to the requirements of the “International Code of Phytosociological Nomenclature”, nomenclature of taxon according to the Catalogue of Life and Euro + Med PlantBase international databases. Results. A preliminary version of the prodrome of natural dry grassland and phrygana vegetation of the Southern Crimea has been compiled. It was established that this vegetation type includes communities of 12 classes: Sedo-Scleranthetea , Trifolio-Geranietea sanguinei , Festuco-Brometea , Festuco-Puccinellietea , Kalidietea foliati , Ononido-Rosmarinetea , Cisto-Lavanduletea stoechadis , Helianthemetea guttati , Stipo-Trachynietea distachyae , Saginetea maritimae , Asplenietea trichomanis , Drypidetea spinosae. There are 14 orders, 14 alliances and 30 associations, three of which need to be validated. The classes of rock and scree vegetation ( Asplenietea trichomanis , Drypidetea spinosae ) are described in most detail. For most classes, a significant part of the classification units has not yet been established. Conclusion. The preliminary prodrome of the natural dry grassland and phrygana vegetation of the Southern Crimea includes 12 classes, 14 orders, 14 alliances and 30 associations. A great part of syntaxa has not yet been established. The composition of the diagnostic species indicates a significant floristic proximity of the classes Sedo-Scleranthetea - Helianthemetea guttati - Stipo-Trachynietea distachyae , Festuco-Puccinellietea - Kalidietea foliati , Ononido-Rosmarinetea - Cisto-Lavanduletea stoechadis .
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Raška, Pavel, Jiří Riezner, Richard Pokorný, Michal Holec, and Martin Raška. "Relations between Biotic and Abiotic Diversity in Abandoned Basalt Quarry and Its Relevance for Ecological Restoration (Radobýl Hill, Northern Czechia)." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65, no. 1 (2017): 151–66. http://dx.doi.org/10.11118/actaun201765010151.
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The ecological value of abandoned quarries has gained increasing scientific attention in the last few decades, resulting in a paradigm shift in restoration programs regarding the use of natural processes. The linkages between biotic and abiotic diversity, such as landform and microclimatic diversity have been analyzed only slightly, however. In this paper, we use an interdisciplinary approach that includes vegetation mapping, geomorphological mapping, microclimatic measurements and modeling to reveal the specific two‑way linkages between abiotoc and biotic diversity. The present case study shows that in only 60 years landform diversity allowed the development of nine distinct biotopes with 134 identified species. At the same time, the vegetation diversity at these human‑induced biotopes is of high ecological value as it displays significant similarities with natural biotopes in the region (e.g., scree slope and rock cliff biotopes). Based on the results presented, the paper aims to contribute to current restoration programs involving processes of spontaneous succession and landforming.
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Nowak, Arkadiusz, Sebastian Świerszcz, Sylwia Nowak, and Marcin Nobis. "Classification of tall-forb vegetation in the Pamir-Alai and western Tian Shan Mountains (Tajikistan and Kyrgyzstan, Middle Asia)." Vegetation Classification and Survey 1 (December 30, 2020): 191–217. http://dx.doi.org/10.3897/vcs/2020/60848.
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Aims: To complete the syntaxonomic scheme for tall-forb vegetation of the montane and alpine belts in the Pamir-Alai and western Tian Shan Mountains in Tajikistan and Kyrgyzstan with some remarks on its environmental predictors. Study area: Middle Asia: Tajikistan and Kyrgyzstan. Methods: A total of 244 relevés were sampled in 2013–2019 using the seven-degree cover-abundance scale of the Braun-Blanquet approach. These were classified with a modified TWINSPAN algorithm with pseudospecies cut-levels 0%, 5% and 25%, and total inertia as a measure of cluster heterogeneity. Diagnostic species were identified using the phi coefficient as a fidelity measure. NMDS was used to explore the relationships between the distinguished groups. Results: Our classification revealed 19 clusters of tall-forb vegetation in Middle Asia. Among others we found forb communities typical for Tian Shan, western Pamir-Alai, forb-scree vegetation of Pamir-Alai, dry tall-forbs and typical forbs of the alpine belt. A total of eight new tall-forb associations and five communities were distinguished. The forb vegetation of Middle Asia has been assigned to the class Prangetea ulopterae Klein. The main factors differentiating the species composition of the researched vegetation are elevation, mean annual temperature, sum of annual precipitation and inclination of the slope. Conclusions: The paper presents the first insight into the comprehensive classification of the alpine forb vegetation in Middle Asia and fosters progress in explaining the relationship of boreo-temperate and Mediterranean-like (Irano-Turanian) vegetation in western Asian and central Asian subregions of the Irano-Turanian phytogeographical region. Taxonomic references: The nomenclature of the vascular plants follows generally Cherepanov (1995) and for Bromus spp. The Plant List (2020) Version 1.1. http://www.theplantlist.org/. Syntaxonomic references: The names of syntaxa are used in accordance with Ermakov (2012), Gadghiev et al. (2002) and Nowak et al. (2018). Abbreviation: NMDS = Non-metric Multidimensional Scaling.
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Nowak, Arkadiusz, Sebastian Świerszcz, Sylwia Nowak, and Marcin Nobis. "Classification of tall-forb vegetation in the Pamir-Alai and western Tian Shan Mountains (Tajikistan and Kyrgyzstan, Middle Asia)." Vegetation Classification and Survey 1, no. () (2020): 191–217. https://doi.org/10.3897/VCS/2020/60848.
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Aims: To complete the syntaxonomic scheme for tall-forb vegetation of the montane and alpine belts in the Pamir-Alai and western Tian Shan Mountains in Tajikistan and Kyrgyzstan with some remarks on its environmental predictors. Study area: Middle Asia: Tajikistan and Kyrgyzstan. Methods: A total of 244 relevés were sampled in 2013–2019 using the seven-degree cover-abundance scale of the Braun-Blanquet approach. These were classified with a modified TWINSPAN algorithm with pseudospecies cut-levels 0%, 5% and 25%, and total inertia as a measure of cluster heterogeneity. Diagnostic species were identified using the phi coefficient as a fidelity measure. NMDS was used to explore the relationships between the distinguished groups. Results: Our classification revealed 19 clusters of tall-forb vegetation in Middle Asia. Among others we found forb communities typical for Tian Shan, western Pamir-Alai, forb-scree vegetation of Pamir-Alai, dry tall-forbs and typical forbs of the alpine belt. A total of eight new tall-forb associations and five communities were distinguished. The forb vegetation of Middle Asia has been assigned to the class Prangetea ulopterae Klein. The main factors differentiating the species composition of the researched vegetation are elevation, mean annual temperature, sum of annual precipitation and inclination of the slope. Conclusions: The paper presents the first insight into the comprehensive classification of the alpine forb vegetation in Middle Asia and fosters progress in explaining the relationship of boreo-temperate and Mediterranean-like (Irano-Turanian) vegetation in western Asian and central Asian subregions of the Irano-Turanian phytogeographical region. Taxonomic references: The nomenclature of the vascular plants follows generally Cherepanov (1995) and for Bromus spp. The Plant List (2020) Version 1.1. http://www.theplantlist.org/. Syntaxonomic references: The names of syntaxa are used in accordance with Ermakov (2012), Gadghiev et al. (2002) and Nowak et al. (2018). Abbreviation: NMDS = Non-metric Multidimensional Scaling.
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Dimopoulos, Panayotis, Karle V. Sýkora, Ladislav Mucina, and Theodoros Georgiadis. "The high-rank syntaxa of the rock-cliff and scree vegetation of the mainland Greece and Crete." Folia Geobotanica et Phytotaxonomica 32, no. 3 (1997): 313–34. http://dx.doi.org/10.1007/bf02804010.
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Fanelli, Giuliano, Fabio Attorre, Matteo Del Giudice, Ermelinda Gjeta, and Michele De Sanctis. "Phlomis fruticosa scrublands in the central Mediterranean region: syntaxonomy and ecology." Phytocoenologia 45, no. 1 (2015): 49–68. http://dx.doi.org/10.1127/phyto/2015/0041.
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Phlomis fruticosa is a weakly lignified shrub which colonizes large expanses in Albania and Greece in overgrazed areas, and is also present throughout the northern Mediterranean region from Italy to Cyprus. It is characteristic for species-rich vegetation, with up to 65 species on 50 m2. We assembled a dataset of 129 original and published relevés and analyzed the floristic variability and the ecology of vegetation containing Phlomis fruticosa in the central Mediterranean region. We floristically and ecologically differentiated three previously described associations: a) the Salvio fruticosae-Phlomidetum fruticosae, distributed in Sicily, is characterized by high species richness of nano-phanerophytes, and is restricted to the warmest and more oceanic part of the range of P. fruticosa; b) the Sideritido italicae-Phlomidetum fruticosae is characterized by high chamaephyte richness, and occurs in cooler, relatively oceanic areas; c) the Allio pulchelli-Phlomidetum fruticosae is very rich in therophytic species and occupies the drier, more continental part of the distribution area of P. fruticosa. The vegetation syntaxa of the P. fruticosa scrubland belong to two structural types: a relatively low scrubland with a poorly developed herb layer on limestone boulders, and a taller, more open scrubland with a rich herb layer that grows in pastures and abandoned fields. Our results suggest that scree and boulders is the primary habitat of low-growing P. fruticosa scrublands (first structural type), from which the species colonized overgrazed areas and abandoned fields, after humans cleared the primeval Mediterranean forest.
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Xing, Yuting, Shiqin Deng, Yuanyin Bai, Zhengjie Wu, and Jian Luo. "Leaf Functional Traits and Their Influencing Factors in Six Typical Vegetation Communities." Plants 13, no. 17 (2024): 2423. http://dx.doi.org/10.3390/plants13172423.
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Leaf functional traits (LFTs) have become a popular topic in ecological research in recent years. Here, we measured eight LFTs, namely leaf area (LA), specific leaf area (SLA), leaf thickness (LT), leaf dry matter content (LDMC), leaf carbon content (LCC), leaf nitrogen content (LNC), leaf phosphorus content (LPC), and leaf potassium content (LKC), in six typical vegetation communities (sclerophyllous evergreen broad-leaved forests, temperate evergreen coniferous forests, cold-temperate evergreen coniferous forests, alpine deciduous broad-leaved shrubs, alpine meadows, and alpine scree sparse vegetation) in the Chayu River Basin, southeastern Qinghai-Tibet Plateau. Our aim was to explore their relationships with evolutionary history and environmental factors by combining the RLQ and the fourth-corner method, and the method of testing phylogenetic signal. The results showed that (i) there were significant differences in the eight LFTs among the six vegetation communities; (ii) the K values of the eight LFTs were less than 1; and (iii) except for LCC, all other LFTs were more sensitive to environmental changes. Among these traits, LA was the most affected by the environmental factors, followed by LNC. It showed that the LFTs in the study were minimally influenced by phylogenetic development but significantly by environmental changes. This study further verified the ecological adaptability of plants to changes in environmental factors and provides a scientific basis for predicting the distribution and diffusion direction of plants under global change conditions.
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Talebi, Amir, Denys Vynokurov, Farideh Attar, Jürgen Dengler, and Alireza Naqinezhad. "Vegetation of the southern slopes of Mt. Damavand, Iran: a comprehensive phytosociological classification." Vegetation Classification and Survey 5 (December 23, 2024): 301–28. https://doi.org/10.3897/vcs.136825.
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Aims: To provide the first syntaxonomic scheme of the main natural and semi-natural steppic vegetation types along a 3000-m elevational gradient. Location: South-facing slopes of Mt. Damavand, Iran. Methods: A dataset of 330 phytosociological plots of 25 m2 sampled in all main vegetation types of the region was subjected to unsupervised classification with TWINSPAN. After some manual adjustments to maximise the floristic distinctness of clusters, the resulting units were translated into syntaxa at the class, order, alliance and association level. Diagnostic species were determined with phi values as measure of fidelity. The differences in abiotic and vegetation parameters among associations/communities were visualised with boxplots and the environmental gradients associated with the community differentiation via detrended correspondence analysis (DCA). Results: We found four main groups that are ecologically well interpretable and considered at the level of phytosociological classes: rocky habitats (Tanacetalia kotschyi, class unknown), scree habitats (Didymophyso aucheri-Dracocephaletea aucheri), snow-beds (Salicetea herbaceae) and grasslands (Astragalo-Brometea). We distinguished six orders, nine alliances and 18 association-level communities, which were floristically well separated. Many of these syntaxa were new to science. Elevation was the main driver of species composition and formation of the major vegetation groups. Conclusions: This study contributes to advancing the syntaxonomic understanding of the vegetation of Iran. It is particularly valuable as it covers the complete elevational gradient of 3000 m and thus also comprehensively includes the vegetation types of the lower elevations that previously had been rarely studied syntaxonomically in Iran. Furthermore, this study is the first to examine mown (semi-natural) tall herb rich grasslands in Iran, which were assigned to the new alliance Cousinion petrocauli. Since our study was based on a regionally constrained dataset, we could not solve all syntaxonomic issues conclusively. This underscores the need for more comprehensive studies of the vegetation in the entire Alborz Mts as well as other Iranian mountain ranges in the future. Taxonomic reference: Catalogue of Life (Bánki et al. 2024). Abbreviations: DCA = detrended correspondence analysis, ICPN = International Code of Phytosociological Nomenclature (Theurillat et al. 2021), TWINSPAN = two-way indicator species analysis.
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Kotova, N. A., M. B. Fardeeva, and B. M. Usmanov. "Population dynamics of forest-forming tree species on landslide-scree slopes of the right bank of the Kuibyshev reservoir (Tatarstan)." IOP Conference Series: Earth and Environmental Science 1070, no. 1 (2022): 012007. http://dx.doi.org/10.1088/1755-1315/1070/1/012007.
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Abstract The dynamics of forest-forming tree populations under conditions of landslide slopes makes it possible to assess the impact and the anthropogenic regulation of the Kuibyshev reservoir on the forest vegetation state. The Shannon index characterizes the phanerophytes diversity in the structure of forests by landslide elements. The integral signs of the activity/stability of landslide processes on the slopes are the trees functional parameters – the trunks height, the dynamics of cross-sectional areas and wood volumes, reflecting not only the different trees populations state and productivity according to the landslide elements, but also the stage of phytocenoses reforestation of along the right bank of the Kuibyshev reservoir.
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Germain, Daniel, Louise Filion, and Bernard Hétu. "Snow avalanche activity after fire and logging disturbances, northern Gaspé Peninsula, Quebec, Canada." Canadian Journal of Earth Sciences 42, no. 12 (2005): 2103–16. http://dx.doi.org/10.1139/e05-087.
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In mountainous areas, ecological disturbances causing forest fragmentation may influence the pattern and regime of snow avalanches. In the northern Gaspé Peninsula (Quebec), at two sites located on treed slopes of a southnorth oriented valley, tree removal by fire and logging operations was the precursor factor for avalanche activity. Years of high-magnitude snow avalanches were identified based on tree-ring techniques; these avalanches were different from those identified by Dubé et al. (2004) for three undisturbed scree-slope sites in the same area. The lack of synchronicity in avalanche occurrences between disturbed and undisturbed sites suggests a strong influence of local factors (e.g., disturbance, local topography, slope aspect, vegetation). The first avalanche years were recorded in 1941 and 1988, after a fire in 1938 and logging operations in 19861987, respectively. Both of these years had above average snowfalls; this indicates that climate (total annual snowfall) was also a contributing factor for avalanche activity. The avalanche window in the post-logging site was shorter (four years) than that of the post-fire site (1520 years). This is an indication that avalanche activity after tree removal largely depends on the capacity of woody vegetation to reach heights sufficient to control snow drifting and thus avalanche activity.
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Churchill, SK. "Distribution, habitat and satus of the Carpentarian rock-rat, Zyzomys palatalis." Wildlife Research 23, no. 1 (1996): 77. http://dx.doi.org/10.1071/wr9960077.
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A survey was conducted in the Northern Temtory and Queensland to determine the distribution, status and habitat use of the recently described Carpentarian rock-rat, Zyzomys palatalis. The species was previously known from two localities in the Gulf of Carpentaria, and this survey added only one new population to its known range. The species is restricted to monsoon rainforest on scree slopes. In the Gulf region this habitat is very limited and highly fragmented. The only areas where suitable habitat exists are in relatively inaccessible gorges where permanent springs provide enough moisture to maintain the monsoon rainforests. These patches of relict vegetation may be threatened by feral animals and changing fire regimes. Because of the low population size of Z. palatalis and the small size of suitable habitat available, the species is considered to be critically endangered.
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Noroozi, Jalil, Wolfgang Willner, Harald Pauli, and Georg Grabherr. "Phytosociology and ecology of the high-alpine to subnival scree vegetation of N and NW Iran (Alborz and Azerbaijan Mts.)." Applied Vegetation Science 17, no. 1 (2013): 142–61. http://dx.doi.org/10.1111/avsc.12031.
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Germain, Daniel. "Biogeomorphological interactions of vegetation for sediment storage on a fine-grained active scree slope in a cold temperate maritime climate." Geomorphology 455 (June 2024): 109201. http://dx.doi.org/10.1016/j.geomorph.2024.109201.
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Biță-Nicolae, Claudia, Daniela Mogîldea, and Oliviu G. Pop. "Investigating Endemic Alpine Communities of Papaver corona-sancti-stephani and Cerastium lerchenfeldianum in the Southern Carpathians." Diversity 17, no. 4 (2025): 283. https://doi.org/10.3390/d17040283.
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The high-elevation calcareous screes of the Southern Carpathians are ecologically important habitats characterised by extreme environmental conditions. These habitats support specialised plant communities, including endemic and relict species, shaped by climatic, edaphic and biogeographic factors. This study examines three scree vegetation communities in the Bucegi, Piatra Craiului and Făgăraș massifs to assess species composition, ecological strategies and environmental influences. Phytosociological surveys were carried out using the Braun-Blanquet method, diversity indices (species richness, Simpson indices and species evenness) and multivariate analyses, including ANOSIM (ANalysis Of SIMilarities), SIMPER (Similarity Percentage method) and PCA (Principal Component Analysis), and were applied to evaluate species–environment relationships. A total of 62 vascular plant species were recorded, with Caryophyllaceae and Asteraceae as the dominant families. Differences in lifeform composition and species distribution between the massifs were related to variations in soil moisture, nutrient availability and climatic conditions. The results highlight the role of calcareous substrates in supporting alpine endemism and underline the influence of abiotic stress on community structure. Conservation efforts should prioritise these fragile ecosystems, especially as climate change and human activities increase pressure on high-elevation habitats. The study contributes to a broader understanding of the Carpathian alpine flora and its biogeographic connections with other European mountain systems, and it highlights the need for targeted conservation strategies to preserve biodiversity in these vulnerable environments.
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Korotkov, K. O., and E. A. Belonovskaya. "The Great Caucasus alpine belt syntaxonomy. Alpine meadows with restricted distribution." Vegetation of Russia, no. 1 (2001): 17–35. http://dx.doi.org/10.31111/vegrus/2001.01.17.
Full textAbstract:
Alpine meadows with prevalence of perennial herbs and grasses and alpine fruticose-lichen heaths are widespread within the Great Caucasus alpine belt, 2400—3200 m above the sea level. The association Hedysaro hedysaroidis—Campanuletum collinae is met in the Western and Central Caucasus. The associations Alopecuro dasyanthi—Asteretum alpini, transitional to scree vegetation, and Nardo stricti—Geranietum gymnocauli, with some features of the alpine carpet-like communities, are common in the Western Caucasus. The last association can be divided into the 2 subassociations, N. —G. festucetosum variae and N.—G. cetrarietosum purpurascentis. The association Polygono vivipari—Kobresietum bellardii is restricted to the Central Caucasus. The association Potentiletum crantzii with the two subassociations P. c. vaccinietosum myrtilli and P. c. kobresietosum simpliciusculae and also the association Alchemillo sericeae—Caricetum umbrosae are common for the Eastern Caucasus. The third east-caucasian association, Astragaletum incerti, is specific for this region; it is met only on the extreme South of the high-mountainous Dagestan. The syntaxonomical differentiation between west- and central-caucasian associations is more distinct. Whereas the eastern ones are less differentiated both from each other and from the neighbouring vegetation type, the alpine carpet-like meadows. This could be explained by means of the hypothesis of continental fusion of syntaxa. All the above-mentioned associations are combined into the novel Caucasian alliance Alchemillo caucasicae—Campanulion tridentatae which is assigned to the European class Juncetea trifidi and the order Caricetalia curvulae.
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Noroozi, Jalil, Amir Talebi, Michael Suen, and Gerald M. Schneeweiss. "Plant biogeography, endemism and vegetation types of Dena Mts, Zagros, West Iran." Vegetation Classification and Survey 5 (October 11, 2024): 185–202. https://doi.org/10.3897/VCS.118433.
Full textAbstract:
Questions: The highest mountain peak of Zagros is located in the Dena mountain system (4409 m a.s.l.), which is identified as the second richest center of plant endemism of Zagros. In this study we (1) investigate floristic affinities of Dena Mts to adjacent mountain ranges based on the endemic species of the Iranian Plateau, (2) identify the species reaching the subnival zone, and (3) characterize the plant communities of the subnival zone of Dena Mts. Study area: Dena Mts is a calcareous mountain system in southern Zagros, Iran. Methods: The list of taxa endemic to the Iranian Plateau present also in Dena Mts was taken from our previously published data. Novel vegetation data were collected using the methodology of Braun-Blanquet. Classification was carried out in JUICE using the Modified TWINSPAN method. Results: Of the 242 taxa endemic to the Iranian Plateau present in Dena Mts, 22 taxa are endemic to the latter. Dena Mts have the strongest floristic affinity with the Yazd-Kerman massif, with which they share 84 taxa compared to 51 taxa shared with Alborz, 37 taxa shared with the Azerbaijan Plateau, and 15 taxa shared with Kopet Dagh-Khorassan. In Dena Mts, 38 taxa reach the subnival zone, most of them being endemic to the Iranian Plateau (68%). From scree habitats in the subnival zone, two new plant associations are described, <i>Aethionemetum umbellati</i> and <i>Zerdanetum anchonioidei</i>. These constitute a newly described alliance <i>Galion pseudokurdici</i>, classified within the class <i>Didymophyso aucheri-Dracocephaletea aucheri</i>. Conclusions: Although Dena Mts lie within a protected area, this will not prevent shrinking of alpine and subnival habitats due to global warming. Consequently, strong attention to the conservation of all range-restricted species of this mountain system, especially of alpine and subnival species, is highly recommended. Taxonomic reference: Flora of Iran (Assadi et al. 1989–2021) and, for families not yet covered in the previous source, Flora Iranica (Rechinger 1963–2015).
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Noroozi, Jalil, Amir Talebi, Michael Suen, and Gerald M. Schneeweiss. "Plant biogeography, endemism and vegetation types of Dena Mts, Zagros, West Iran." Vegetation Classification and Survey 5 (October 11, 2024): 185–202. http://dx.doi.org/10.3897/vcs.118433.
Full textAbstract:
Questions: The highest mountain peak of Zagros is located in the Dena mountain system (4409 m a.s.l.), which is identified as the second richest center of plant endemism of Zagros. In this study we (1) investigate floristic affinities of Dena Mts to adjacent mountain ranges based on the endemic species of the Iranian Plateau, (2) identify the species reaching the subnival zone, and (3) characterize the plant communities of the subnival zone of Dena Mts. Study area: Dena Mts is a calcareous mountain system in southern Zagros, Iran. Methods: The list of taxa endemic to the Iranian Plateau present also in Dena Mts was taken from our previously published data. Novel vegetation data were collected using the methodology of Braun-Blanquet. Classification was carried out in JUICE using the Modified TWINSPAN method. Results: Of the 242 taxa endemic to the Iranian Plateau present in Dena Mts, 22 taxa are endemic to the latter. Dena Mts have the strongest floristic affinity with the Yazd-Kerman massif, with which they share 84 taxa compared to 51 taxa shared with Alborz, 37 taxa shared with the Azerbaijan Plateau, and 15 taxa shared with Kopet Dagh-Khorassan. In Dena Mts, 38 taxa reach the subnival zone, most of them being endemic to the Iranian Plateau (68%). From scree habitats in the subnival zone, two new plant associations are described, Aethionemetum umbellati and Zerdanetum anchonioidei. These constitute a newly described alliance Galion pseudokurdici, classified within the class Didymophyso aucheri-Dracocephaletea aucheri. Conclusions: Although Dena Mts lie within a protected area, this will not prevent shrinking of alpine and subnival habitats due to global warming. Consequently, strong attention to the conservation of all range-restricted species of this mountain system, especially of alpine and subnival species, is highly recommended. Taxonomic reference: Flora of Iran (Assadi et al. 1989–2021) and, for families not yet covered in the previous source, Flora Iranica (Rechinger 1963–2015).
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Borovečki-Voska, Ljiljana, Marko Randić, Antun Alegro, and Vedran Šegota. "Novi lokaliteti vrste Cirsium candelabrum (Asteraceae) u Hrvatskoj." Glasnik Hrvatskog botaničkog društva 9, no. 2 (2022): 95–103. http://dx.doi.org/10.46232/glashbod.9.2.4.
Full textAbstract:
Cirsium candelabrum is a Balkan endemic species, non-indigenous to Croatia. In the last 13 years its spread was observed only in Central Dalmatia. From 2015 to 2021 we have been recording its invasive spreading across the Kvarner region and its arrival to the southern edge of Gorski Kotar. The plants appear in diverse numbers in two different habitat types. In the sub-Mediterranean zone, the species inhabits ruderal habitats arising from the degradation of the natural vegetation by the construction works for traffic and communal infrastructure and the erection of industrial zones and shopping centres, accompanied by numerous invasive alien species. In the upper (montane and subalpine) zone of Mali and Veliki Platak, C. candelabrum dominates in stands on gravely road edges, forest ways, on incisions with glacial till, and especially luxuriant and dense populations form on the dug-up soil under the ski lift and along the ski run on Radeševo. Here, C. candelabrum is accompanied by native species characteristic for the forest edges and clearings and sometimes for ruderal, chasmophytyc or scree habitats.
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Nikolin, E. G., N. V. Mamaev, and I. M. Okhlopkov. "Forage plants for the northern pika (<i>Ochotona hyperborea</i> Pallas) in the Chuvansky Range System (South Chukotka)." Vavilovia 5, no. 3 (2023): 46–64. http://dx.doi.org/10.30901/2658-3860-2022-3-04.
Full textAbstract:
The northern pika (Ochotona hyperborea Pallas) is a small herbivorous animal from the Ochtonidae family, widely distributed in the mountains of Northeast Asia. Despite its small size, the northern pika plays a noticeable role in the transformation of organic substances of biocenoses. An essential feature of these mammals is the procurement of plant food for the winter period. The food ration of the animals is very diverse and depends on the structure of the surrounding vegetation. It includes aerial parts of shrubs, sub‑shrubs, herbaceous plants, ferns, Equisetum species, rarely trees, bushy lichens, fungi and very rarely mosses. According to our analysis of the literature data, more than 220 species of vascular plants are included in the diet of the northern pika in Northeast Asia. During a survey of the northern spurs of the Chuvansky Range in the basin of the Ozernoe Gorlo river (Anadyr river basin), 14 species of vascular plants, 8 species of bushy lichens and 1 species of moss were identified in winter stocks of the northern pika on 2 terrain areas differing in landscape and vegetation structure. Salix pulchra, S. berberifolia subsp. tschuktschorum, Chamaenerion latifolium, Vaccinium uliginosum subsp. microphyllum, Empetrum nigrum, Ledum palustre subsp. Decumbens are of great importance as the preferred food of northern pika in this territory. In addition, the Dryopteris fragrans fern and more rarely Betula nana, are harvested quite sustainably in one of the sections of a stone scree (stone run) surrounded by a Pinus pumila community. The role of bushy lichens and mosses in the nutrition of the northern pika needs to be clarified.
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Hewson, RD, and GR Taylor. "An investigation of the geological and geomorphological features of Fowlers Gap using thermal infrared, radar and airborne geophysical remote sensing techniques." Rangeland Journal 22, no. 1 (2000): 105. http://dx.doi.org/10.1071/rj0000105.
Full textAbstract:
This study summarises the application of several remote sensing techniques to investigate various components of a land surface in the semi-arid environment of Fowlers Gap. These remote sensing techniques included NASA's Thermal Infrared Multispectral Scanner (TIMS) and CSIRO's Mid-Infrared Airborne CO, Laser Spectrometer (MIRACO,LAS), NASA's AIRSAR radar and geophysical airborne radiometrics. Linear spectral unmixing of extracted emissivities from the TIMS data produced four endmembers: quartz, clay minerals, dry vegetation (cellulose) in fine soils, and green vegetation/moisture. MIRAC0,LAS data identified spectral signatures similar to the spectra of endmembers derived from TIMS data. The sensitivity of both thermal infrared remote sensing techniques to the quartzklay contents and textures of the soils and sediments was confirmed by detailed laboratory spectral measurements. Surface roughness information from AIRSAR's band C radar backscatter assisted the discrimination of alluvial and colluvial quartz and clay-rich deposits from the outcropping geological units. In particular the C band AIRSAR radar discriminated the coarse grained sandstone and quartzite scree within the colluvial pediments, from the finer grained quartz-rich 'radar smooth' alluvium in the scalds. Airborne radiometrics were also found useful for further discriminating potassium and thorium- bearing phyllosilicate/clay minerals, within shales and ghyllites, from the kaolinite and montmorillonite- rich alluvium. This study found that TIMS data could identify some of the geomorphological features at Fowlers Gap, such as colluvial pediments, depositional scalds and gilgai landforms, that characterise some of the land systems in the Lowlands and Plains relief class of the Fowlers Gap land system classification. Thermal infrared remote sensing techniques also proved capable of discriminating areas of cellulose-rich dry vegetation and fine grained soils within the Plains relief class. The sensitivity of AIRSAR radar for topographic relief and surface roughness suggests that it is useful for distinguishing land systems in the Ranges relief class. Radiometrics appeared useful for land system definition when outcropping argillaceous units and alluvium assisted their classification. Key words: remote sensing, Fowlers Gap, thermal infrared, land system, spectral unmixing