Academic literature on the topic 'Chamaephytes'
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Journal articles on the topic "Chamaephytes"
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Malik, Suvamoy, Archan Bhattacharya, and Ambarish Mukherjee. "Biological spectrum of Chandur forest in Hooghly district, West Bengal." Indian Journal of Forestry 29, no. 2 (2006): 145–48. http://dx.doi.org/10.54207/bsmps1000-2006-5t5o00.
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The biological spectrum of Chandur, a tropical dry deciduous forest of Arambagh range under Howrah Forest Division, West Bengal, reveals that per hundred species of its flora no less than 46.20 are phanerophytes, 20 chamaephytes, 8.97 hemicryptophytes, 4.83 cryptophytes and 20 therophytes. These involve 143 species of angiosperms and one species each of pteridophyte and angiosperm. The phanero-chamaephytic phytoclimate with dominance of phanerophytes indicates adequate protective measures in vogue while the relatively higher value of chamaephytes reflects the care taken to maintain their existence from adverse factors like grazing and trampling. The decline in the number of hemicryptophytes is a matter of concern given the role they play in eco-restoration, particularly in preventing soil-erosion.
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Sherwani, Neelam. "Flora, Life-forms and Biological Spectrum of Muscat Governorate." Sultan Qaboos University Journal for Science [SQUJS] 24, no. 2 (2020): 95. http://dx.doi.org/10.24200/squjs.vol24iss2pp95-108.
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The present study evaluated the floristic diversity and biological spectrum of Muscat Governorate, Sultanate of Oman. Heterogeneity of geology, topography and climatic conditions create a diverse array of habitats across the 3,500 km2 study area, supporting a range of vegetation types. Floristic studies were conducted across 42 sites spread across various habitats such as sand dunes, alluvial plains, gravel plains, wadis, saline dunes, coastal areas, farms and plantations. A total of 264 species belonging to 183 genera and 54 families of angiosperm were documented during sampling the vegetation from different wilayats of the Governorate. Maximum number of species belonged to family Fabaceae (14%), followed by Poaceae (12%), Asteraceae (9%), Apocyanaceae and Convolvulaceae (3.66% each), Boraginaceae, Euphorbiaceae, Zygophylaceae (3% each). The biological spectrum was represented almost equally by therophytes and chamaephytes (30% each), followed by phanerophytes (19%), hemicryptophytes (13%), geophytes (4%), liana (3%), and helophytes (1%). The dominance of therophytes and chamaephytes reveals a thero-chamaephytic phytoclimate for the area. Different habitats are characterized by specific plant assemblages, but some species such as Acacia tortilis, Prosopis cineraria, Tetraena quaterense, Dipterygium gluacum, Aerva javanica, due to their broad ecological tolerance and adaptations, inhabit more than one habitats, while some species are just confined to certain parts of a single habitat.
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Bazarragchaa, Badamtsetseg, Gantuya Batdelger, Monkhjin Batkhuu, et al. "Floristic Composition and Biological Spectrum of The Bogdkhan Mountain, Mongolia." Bangladesh Journal of Plant Taxonomy 29, no. 2 (2022): 241–68. http://dx.doi.org/10.3329/bjpt.v29i2.63528.
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The Bogdkhan mountain of Mongolia is strictly protected and possesses a unique ecosystem, because of its location in the transitional zone of Siberian taiga and the Asian steppe. Floristic composition and the biological spectrum of the Bogdkhan Mountain were studied during July 2019 to September 2020. A total of 522 vascular plants were recorded belonging to 249 genera and 63 families. Asteraceae was found to be the most dominant family (13.22%; 33 genera and 69 taxa) followed by Poaceae (8.43%; 21 genera and 44). The classified life-form spectra of all the species recorded from the study area revealed the predominance of hemicryptophytes (63.03%) followed by geophytes (11.30%), therophytes (10.34%), phanerophytes (9.58%), chamaephytes (5.36%), and hydrophytes (0.38%). The notable changes found in the biological spectrum, which are chamaephytes from 12 to 5.36%, geophytes from 8 to 11.30% and therophytes from 8 to 10.34%. Variaty of reasons might cause change the life form, such as climate change, anthropogenic impacts, etc. Hemicryptophytes and chamaephytes dominate the flora of the mountain due to the cold mountain niche. The floristic diversity of this mountain tends to decline further videnced from the observed lesser divergence values of geophytes and therophytes. Bangladesh J. Plant Taxon. 29(2): 241-268, 2022 (December)
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Masdoos, Zamila Mohammed, Mohammed Abdullah Hussein, and Abdul-Nasser Al–Gifri. "Floristic diversity of Lawder District, Abyan Governorate, Yemen." University of Aden Journal of Natural and Applied Sciences 27, no. 1 (2023): 153–68. http://dx.doi.org/10.47372/uajnas.2023.n1.a10.
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The present study provides a detailed depiction of the floristic composition of Lawder District which located in the Centre of Abyan between longitudinal range 45º 20¯ to 45º 50¯ E and latitudinal range 13º 00¯ to 14º 00¯ N, with and altitudinal range of 1000 masl to 2500masl. This work was carried out to identify the floristic composition in Lawder District. The floristic study of Lawder District indicated the presence of 243 species belonging to 154 genera and 58 families. The major families based on the number of species were Euphorbiaceae, Apocynaceae, Asteraceae, Poaceae, Fabaceae, Solanaceae, Capparaceae and Boraginaceous, The biological spectrum explains that Chamephytes (35.80%), were the dominant, followed by Therophytes (25.52%, Hemicryptophytes (20.16%), Phanerophytes (14.40 %), Geophytes (2.06%), parasite (1.65 %), and Epiphytes (0.41`%). The dominance of Chamaephytes and Therophytes reveals a thero-chamaephytic phytoclimate for the investigated area.The number of species was higher in the Herbs, which was represented by 52.27% of species, followed by the Shrubs 30.45%, Trees were represented by 13.17%, Lianas were represented by 2.90% and Parasite 1.23%.
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Brundu, Giuseppe, and Ignazio Camarda. "The Flora of Chad: a checklist and brief analysis." PhytoKeys 23 (May 13, 2013): 1–18. https://doi.org/10.3897/phytokeys.23.4752.
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A checklist of the flora of Chad has been compiled by the authors, based on literature, on-line data-bases, herbarium collections and land surveys (1998-2011). It counts 2,460 records, i.e. 2,288 species (including 128 autonyms), 83 subspecies, 81 varieties, 8 forms, while all the previous available information reported 1,600 species. They belong to 151 Families, with 48.7% of the taxa belonging to the 6 largest families, i.e. <i>Poaceae</i> (14.6%), <i>Fabaceae</i> (13.6%), <i>Cyperaceae</i> (7.0%), <i>Asteraceae </i>(6.2 %), <i>Malvaceae</i> (3.9%) and Rubiaceae (3.4%).A total number or 2,173 species (88.3%) are native to Chad, including 55 (2.2%) endemic species, while 274 (11.0%) are alien to Chad, and 13 (0.5%) are considered cryptogenic, i.e. of uncertain status. It represents a considerable update on previous knowledge on the alien flora of Chad that counted for 131 taxa (5.3%). There are 657 therophytes (26.7%), 546 phanerophytes (22.2%), 378 hemicryptophytes (15.4%), 256 chamaephytes (10.4%), 160 geophytes (6.5%), 107 helophytes (4.3%), 104 hydrophytes (4.2%). A total of 252 taxa (10.2) may have different life forms (e.g. terophytes or chamaephytes).
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Ghildiyal, J., Savita Bisht, and Rakhi Jadli. "Life-forms and biological spectrum of Tarkeshwar Sacred Grove in Garhwal Himalaya." Indian Journal of Forestry 31, no. 3 (2008): 343–56. http://dx.doi.org/10.54207/bsmps1000-2008-s8r2y7.
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Tarkeshwar a sacred grove in Garhwal Himalaya, is traditionally protected forest with its rich plant diversity. It occupies 825.5 ha area in Pokhra Range in Garhwal Forest Division. The biological spectrum of this sacred grove reveals that the vegetation of this area is thero-phanerophytic.The life-forms observed were Phanerophytes (29.12%), Chamaephytes (13.00%), Hemicryptophytes (9.25%), Cryptophytes (6.07%), Therophytes (42.5%).
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Ghildiyal, J., and Meenakshi Juyal. "Life forms and biological spectrum of Lal Dhang Forest range of Lansdowne Forest division in Garhwal Himalaya." Indian Journal of Forestry 33, no. 3 (2010): 383–93. http://dx.doi.org/10.54207/bsmps1000-2010-2h227n.
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The biological spectrum of Lal Dhang Forest Range of Lansdowne Forest Division in Garhwal Himalaya reveals that the vegetation of this region is phanero-therophytic. The life forms observed are phanerophytes (42.1%), therophytes (37%), chamaephytes (11.6%), cryptophytes (7.4%), and hemicryptophytes (1.9%). The percentage of therophyte is higher in comparison to Raunkiaer’s normal spectrum. The higher percentage of therophytes was due to the biotic disturbances, particularly due to human interference.
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Alhood, Fuad Abdulla Nagi. "FLORISTIC COMPOSITION, LIFE-FORMS AND CHOROLOGY OF AL-MADLOOM MOUNTAIN, ADHALE DISTRICT, SOUTHERN YEMEN." Electronic Journal of University of Aden for Basic and Applied Sciences 5, no. 1 (2024): 131–40. http://dx.doi.org/10.47372/ejua-ba.2024.1.335.
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The floristic composition, life form, and chorology were conducted in Al-Madloom mountain, Adhale, South of Yemen. The flora consisted of 159 plant species belonging to 111 genera and 46 families. Apocynaceae (12 genera; 19 species), Euphorbiaceae (eight genera; 14 species), and Acanthaceae (eight genera; 8 species) were the most dominant families in terms of species richness. The plants were classified into different life forms and Chorotypes after standard methods. Among the life forms, Chamaephytes 60 species (37.73%) were the dominant followed by Therophytes 47 species (29.55%), Phanerophytes 29 species (18.23%), Geophytes 15 species (9.43%), Hemicryptophytes six species (3.77%), while two species were Parasites (1.25%). From the Chorological point of view, the study revealed that the highest number of species 56 (35.22%) was recorded in the Su-Za Chorotype, followed by Cosmopolitan 20 species (12.57%), Endemic 18 species (11.32%) and ZU-ZA+SA-SI 16 species (10.06%). The Sudano-Zambenzian constitute 56 species, which means the flora of the study area belongs to the Sudanian region. The domination of Chamaephytes and Therophytes indicates that the investigated area is under deep biotic stress. Endemism in the study area is relatively significant, represented by 11.32% of the total flora collected from the study area, and these taxa were listed to be globally endangered.
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Pattanaik, Chiranjibi, Ch Reddy, and A. Biswal. "Life forms and biological spectrum of Bhitarkanika National Park, Orissa, India." Indian Journal of Forestry 30, no. 3 (2007): 307–13. http://dx.doi.org/10.54207/bsmps1000-2007-a6z14i.
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Life-forms analysis of the vegetation in Bhitarkanika National Park was carried out based on the data collected from field studies. Of the five life forms, phanerophytes (47.31%) were dominant followed by therophytes (19.89%), cryptophytes (13.44%), chamaephytes (12.37%), and hemicryptophytes (6.99%). The number of therophytes was observed to be higher in littoral scrub and fringe areas of the park due to anthropogenic pressure. Biological spectrum of the study area has been compared with Raunkiaer’s normal spectrum to know the phytoclimate of that region.
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Balkrishna, Acharya, Bhasker Joshi, Anupam Srivastava, B. K. Shukla, Shambhu Patel, and Uday Bhan Prajapati. "Life-form and Biological Spectrum of Morni Hills, Panchkula, Haryana." Indian Journal of Forestry 41, no. 3 (2018): 299–302. http://dx.doi.org/10.54207/bsmps1000-2018-a50pyr.
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The present paper deals with the different life form categories and biological spectrum of Morni Hills in Panchkula district of Haryana. During field surveys, 950 species of vascular plants were recorded from Morni Hills. It includes Therophytes (29.68%), Phanerophytes (21.89%), Nano-phanerophytes (12.94%), Chamaephytes (10.73%), Lianas (10%), Geophytes (8.32%), Hemicryptophytes (4.94%), Hydrophytes (0.84%) and Epiphytes (0.63%). Biological spectrum has been compared with normal spectrum to know the phytoclimate of this region. After the comparison with normal spectrum the phytoclimate of Morni area is Thero-Geo-Chamae-phytic.
Dissertations / Theses on the topic "Chamaephytes"
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Barrett, Gregory J. "The reproductive biology and conservation of two rare Banksia species." Thesis, Curtin University, 1985. http://hdl.handle.net/20.500.11937/2356.
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Two rare Banksia species, B. chamaephyton A.S. George and B. elegans Meissner, were the subject of this study. B. chamaephyton is gazetted as rare under the Wildlife Conservation Act of Western Australia and B. elegans has been recorded by various authors as restricted in range and habitat.Data were collected on the distribution, habitat, reproduction and fire responses of each species. Both were found to occur predominantly in the Irwin Botanical District. B. chamaephyton is found in low heath on sand over laterite and B. elegans in scrub or thickets on deep, yellow sands. Data on species co-occurring with B. chamaephyton were gathered for the purpose of identifying habitats with actual or potential populations of the rare species. Several species appeared to be reliable indicators.Both species are represented in areas set aside for conservation although some populations are vulnerable and their loss would considerably reduce the range of each species. Of particular concern are the southernmost populations of B. chamaephyton and the northernmost populations of B. elegans. The latter appears to represent a size variant within the species. Although neither species is currently endangered, it is recommended that B. chamaephyton remain a gazetted rare species and that consideration be given to the gazettal of B. elegans.Both species are xenogamous and probably bird-pollinated although pollination by small mammals is a possibility. Both also have very low fruit and seed set. In B. chamaephyton, this is probably related to resource availability but B. elegans possesses a malformed stigma which may prevent the normal reproductive process from taking place. Most populations of B. elegans are sterile. Further research into the sexual reproduction and propagation of B. elegans is recommended.Fire is important to both species. In B. chamaephyton, fire, together with subsequent wet/dry cycles, is necessary for seed release from the follicles. Seedling recruitment is negligible in B. elegans. Mature individuals of both species survive fire and in B. elegans fire stimulates root suckering. Autumn burns appear to be most suitable for recruitment in both species, preferably at a minimum interval of ten years.
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Barrett, Gregory J. "The reproductive biology and conservation of two rare Banksia species." Curtin University of Technology, School of Biology, 1985. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=11674.
Full textAbstract:
Two rare Banksia species, B. chamaephyton A.S. George and B. elegans Meissner, were the subject of this study. B. chamaephyton is gazetted as rare under the Wildlife Conservation Act of Western Australia and B. elegans has been recorded by various authors as restricted in range and habitat.Data were collected on the distribution, habitat, reproduction and fire responses of each species. Both were found to occur predominantly in the Irwin Botanical District. B. chamaephyton is found in low heath on sand over laterite and B. elegans in scrub or thickets on deep, yellow sands. Data on species co-occurring with B. chamaephyton were gathered for the purpose of identifying habitats with actual or potential populations of the rare species. Several species appeared to be reliable indicators.Both species are represented in areas set aside for conservation although some populations are vulnerable and their loss would considerably reduce the range of each species. Of particular concern are the southernmost populations of B. chamaephyton and the northernmost populations of B. elegans. The latter appears to represent a size variant within the species. Although neither species is currently endangered, it is recommended that B. chamaephyton remain a gazetted rare species and that consideration be given to the gazettal of B. elegans.Both species are xenogamous and probably bird-pollinated although pollination by small mammals is a possibility. Both also have very low fruit and seed set. In B. chamaephyton, this is probably related to resource availability but B. elegans possesses a malformed stigma which may prevent the normal reproductive process from taking place. Most populations of B. elegans are sterile. Further research into the sexual reproduction and propagation of B. elegans is recommended.Fire is important to both species. In B. chamaephyton, fire, together with subsequent ++<br>wet/dry cycles, is necessary for seed release from the follicles. Seedling recruitment is negligible in B. elegans. Mature individuals of both species survive fire and in B. elegans fire stimulates root suckering. Autumn burns appear to be most suitable for recruitment in both species, preferably at a minimum interval of ten years.
Book chapters on the topic "Chamaephytes"
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"chamaephyte [n]." In Encyclopedic Dictionary of Landscape and Urban Planning. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-76435-9_1725.
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Albert, Mariía J., David Draper, and José M. Iriondo. "Erodium paularense in Spain: Relevance of Microhabitats in Population Dynamics." In Species Conservation and Management. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195166460.003.0007.
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Abstract Erodium paularense Fern. Gonz. and Izco (Geraniaceae) is a woody rosulate chamaephyte that is endemic to central Spain. It is confined to a single locality in the Lozoya Valley (Madrid), where there are three small populations that grow on isolated dolomitic outcrops in a widely extended siliceous landscape. This species occupies two different microhabitats: the crevices and cavities of rocks, and the shallow soils (lithosols) of the nearby grassy communities (González-Benito et al. 1995, Albert et al. 2001a). New populations recently discovered in the province of Guadalajara (200 km from the Lozoya Valley), growing on andesite outcrops, have been ascribed to this species, although comparative genetic studies show great differences between the populations at the two locations (Martín et al. 1999). This species has been classified as endangered (EN) (VV.AA. [Various Authors] 2000) according to the World Conservation Union (IUCN) criteria. In addition to its narrow distribution and the small size of the populations, plants have very low reproductive success (González-Benito et al. 1995, Albert et al. 2001b). Fruit set is about 16%, and mean number of viable seeds per fruit is only 0.31 (out of five possible seeds per fruit). Adult plants produce, on average, four seeds per plant in one reproductive season (Albert et al. 2001b), and there is not a permanent soil seed bank. Available data also show evidence of seed predation by ants and low seedling recruitment (M. J. Albert, J. M. Iriondo, and A. Escudero, unpublished data). Furthermore, populations are also subject to human impact, such as cattle herbivory (Albert et al., in press) and the effects of recreational activities and plant collection.