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Artykuły w czasopismach na temat "Minuartia"

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Yüce, O?uz, Halil Erhan Ero?lu, Murat Koç, and Ergin Hamzao?lu. "Karyotype analysis of Minuartia mesogitana subsp. mesogitana and Minuartia elmalia (Caryophyllaceae, Alsinoideae)." Boletín de la Sociedad Argentina de Botánica 51, no. 3 (2016): 463–67. http://dx.doi.org/10.31055/1851.2372.v51.n3.15391.

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Mitotic metaphase chromosomes, karyotypic characters, monoploid karyograms and ideograms of Minuartia mesogitana subsp. mesogitana and Minuartia elmalia were investigated. Analysis of somatic metaphases showed that the chromosome numbers and the karyotype formula of these taxa were 2n = 2x = 24 = 8m + 8sm + 8st for Minuartia mesogitana subsp. mesogitana and 2n = 2x = 32 = 12m + 16sm + 4st for Minuartia elmalia. No satellites were observed in the karyotypes of the taxa. The intrachromosomal and interchromosomal karyotype asymmetries were estimated with Mean Centromeric Asymmetry (MCA) and Coefficient of Variation of Chromosome Length (CVCL).
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Dillenberger, M. S., and J. W. Kadereit. "A REVISION OF FACCHINIA (MINUARTIA S.L., CARYOPHYLLACEAE)." Edinburgh Journal of Botany 72, no. 3 (2015): 353–89. http://dx.doi.org/10.1017/s0960428615000153.

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Facchinia Rchb. (Alsinoideae–Caryophyllaceae), earlier found not to be part of Minuartia s.str., is here revised. The genus contains seven species, one of which has two subspecies. Seven new combinations are made: Facchinia cerastiifolia (Ramond ex DC.) Dillenb. & Kadereit, F. cherlerioides (Sieber) Dillenb. & Kadereit, F. cherlerioides subsp. aretioides (Port. ex J.Gay) Dillenb. & Kadereit, F. grignensis (Rchb.) Dillenb. & Kadereit, F. herniarioides (Rion) Dillenb. & Kadereit, F. rupestris (Scop.) Dillenb. & Kadereit, and F. valentina (Pau) Dillenb. & Kadereit. Keys to Minuartia s.str., the Old World segregate genera of Minuartia s.l., and to the species and subspecies of Facchinia are provided. All taxa are described and mapped, and some are illustrated.
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Mosyakin, Sergei L., and Mykola M. Fedoronchuk. "New combinations for East European species of Sabulina (Caryophyllaceae)." Phytotaxa 231, no. 1 (2015): 95. http://dx.doi.org/10.11646/phytotaxa.231.1.10.

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Recent molecular studies (Greenberg & Donoghue 2011, Dillenberger & Kadereit 2014) clearly demonstrated that the genus Minuartia Linnaeus (1753: 89) (Caryophyllaceae Juss.) is highly polyphyletic and the taxa previously placed in that genus (e.g., McNeill 1962, Halliday 1993) represent several distinct phylogenetic lineages less related to each other than to some other readily recognized Caryophyllaceae genera. As a consequence, many taxa, which were earlier treated in Minuartia, should be now placed in several distinct genera. Dillenberger & Kadereit (2014) proposed to recognize within the former Minuartia s.l. several genera which are supported by both morphological and molecular characters. Three genera, Mcneillia Dillenberger & Kadereit (2014: 83), Minuartiella Dillenberger & Kadereit (2014: 84), and Pseudocherleria Dillenberger & Kadereit (2014: 84), were described as new ones. Resurrection and re-circumscription was proposed for previously neglected genera Cherleria Linnaeus (1753: 425), Facchinia Reichenbach (1841: 63), Mononeuria Reichenbach (1841: 118), Rhodalsine J. Gay (1845: 25), Sabulina Reichenbach (1832: 24), and Triplateia Bartling (1830: 305), as well as re-circumscription of Minuartia sensu stricto and Eremogone Fenzl (1833: 13). A key to the new proposed classification and a nomenclatural synopsis of the currently recognized species were provided as well (Dillenberger & Kadereit 2014). Accordingly other authors already validated additional nomenclatural combinations in Eremogone (Rabeler & Wagner 2015), Mcneillia (Bartolucci et al. 2015), and Sabulina (Iamonico 2014).
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Mcneill, J. "Minuartia fasciculata versus M. fastiginta." Repertorium novarum specierum regni vegetabilis 68, no. 3 (2008): 170–74. http://dx.doi.org/10.1002/fedr.19630680304.

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KOÇ, MURAT, ERGIN HAMZAOĞLU, and AHMET AKSOY. "Morphological and molecular evidence of some Minuartia species (Caryophyllaceae) from Turkey, with a desciption of a new species." Phytotaxa 391, no. 2 (2019): 122. http://dx.doi.org/10.11646/phytotaxa.391.2.5.

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The genus Minuartia is represented in Turkey by 34 taxa. Some interesting specimens were collected from Antalya province, and examined. These specimens resemble Minuartia meyeri, and M. multinervis from which differ by characters (macro-, and micromorphological) of inflorescence, alar pedicels, petals, sepals, capsules and seeds. Moreover, by using the DNA sequences of the ITS genes, phylogenetic relationships between this collected species, and the related species were investigated. As a result of the evaluation of molecular, and morphological data, we proposed to described the population from Antalya as a new species for the science. A description, pictures, distribution, habitat, and IUCN category are given.
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Neumann, Dieter, Uta zur Nieden, Wilhelm Schwieger, Ines Leopold, and Olaf Lichtenberger. "Heavy metal tolerance of Minuartia verna." Journal of Plant Physiology 151, no. 1 (1997): 101–8. http://dx.doi.org/10.1016/s0176-1617(97)80044-2.

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Uhl, Aksel. "Erstnachweis von Minuartia mediterranea in Deutschland." Kochia 2 (December 19, 2007): 21–24. http://dx.doi.org/10.21248/kochia.v2.19.

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Ein Bestand der Mediterranen Miere (Minuartia mediterranea) ist seit 2005 in einer Trittgesellschaft an einem Straßenrand und angrenzenden Flächen in Schutterwald in der Oberrheinischen Tiefebene bekannt. Dies ist das erste bisher bekannt gewordene Vorkommen der Art in Deutschland. Im Artikel werden neben einer ausführlichen Merkmalsbeschreibung der Art mit Zeichnung, nähere Angaben zum Fund und zur Vergesellschaftung der Art sowie zur Situation der Art in außermediterranen Bereichen Europas gegeben. Die Population gehört zur diploiden Chromosomenrasse (2n = 24).
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BARTOLUCCI, FABRIZIO, FABIO CONTI, DUILIO IAMONICO, and E. DEL GUACCHIO. "A new combination in Mcneillia (Caryophyllaceae) for the Italian flora." Phytotaxa 170, no. 2 (2014): 139. http://dx.doi.org/10.11646/phytotaxa.170.2.8.

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On the basis of DNA sequences of nrITS and plastid matK from 160 ingroup and 105 outgroup samples, Dillenberger & Kadereit (2014) reconstructed the phylogeny and the evolution of the relevant morphological characters of the genus Minuartia Linnaeus (1753: 89), to show that this genus is highly polyphyletic. A revised circumscription of Minuartia was proposed with the recognition of Cherleria Linnaeus (1753: 425), Eremogone Fenzl (1833: 13), Facchinia Reichenbach (1841: 63), Mononeuria Reichenbach (1841: 118), Rhodalsine Gay (1845: 25), Sabulina Reichenbach (1832: 24) and Triplateia Bartling (1830: 305), and recognition of new genera Mcneillia Dillenberger & Kadereit (2014: 83), Minuartiella Dillenberger & Kadereit (2014: 84) and Pseudocherleria Dillenberger & Kadereit (2014: 84).
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Ripka, Géza. "A new Aceria species (Acari: Prostigmata: Eriophyoidea) from Minuartia frutescens (Caryophyllaceae) in Hungary." Zootaxa 4189, no. 1 (2016): 165–73. https://doi.org/10.11646/zootaxa.4189.1.9.

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Parent, Johanne, and Pierre J. H. Richard. "Morphologie pollinique des Caryophyllaceae du Québec nordique, des territoires adjacents et de l'archipel Arctique canadien." Canadian Journal of Botany 71, no. 7 (1993): 887–905. http://dx.doi.org/10.1139/b93-101.

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Pollen grains of 38 species (12 genera) of Caryophyllaceae from nordic Quebec, adjacent territories, and from the Canadian Arctic archipelago were studied in light microscopy. Thirteen pollen forms have been recognized, of which 11 are pantoporate (Cerastium – Stellaria type, Lychnis alpina, Melandrium affine type, Melandrium apetalum, Minuartia groenlandica, Minuartia rubella type, Sagina caespitosa – Sagina nivalis, Sagina nodosa, Sagina procumbens – Sagina saginoides, Silene acaulis, and Silene vulgaris) and 2 others colpate (Spergula arvensis and Spergularia canadensis). The data confirm the taxonomic value of the ratio (distance between two adjacent pores)/(grain diameter). A more precised identification of pollen grains of Caryophyllaceae, which is considered a rather uniform family, will allow a better pollen data interpretation whichever the samples studied. Key words: pollen, morphology, Caryophyllaceae, Quebec, Arctic, Canada.
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Rozprawy doktorskie na temat "Minuartia"

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Baumbach, Henryk. "Genetische Differenzierung mitteleuropäischer Schwermetallsippen von 'Silene vulgaris', 'Minuartia verna' und 'Armeria maritima' unter Berücksichtigung biogeographischer, montanhistorischer und physiologischer Aspekte /." Berlin : J. Cramer, 2005. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=3443643116.

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Hajar, Abdulrahman Said Muhammad. "The comparative ecology of Minuartia verna (L.) Hiern and Thlaspi alpestre L. in the southern pennines, with special reference to heavy metal tolerance." Thesis, University of Sheffield, 1987. http://etheses.whiterose.ac.uk/1829/.

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Minuartia verna (L.) Hiern and Thiaspi alpestre L. are recognized as relict elements of a preglacial montane flora in the British Isles and, as such, display a markedly disjunct distribution pattern. Their present-day distribution shows a close association with metalliferous mine workings, particularly in the Pennines, where both species have become prominent components of the flora of calcareous lead mine wastes. By comparison with M. verna, T. alpestre is more restricted in its distribution and is a rarer species. The work reported in this thesis attempted to provide an explanation for this pattern of distribution in the southern Pennines on the basis of comparative studies of the autecology and genecology of the species, their population biology and dynamics in the field and their responses to competition from other species. Both field and laboratory studies confirmed that the two species were highly tolerant of the heavy metals lead, zinc and cadmium. Short- and long-term solution culture experiments on tolerance and uptake of these heavy metals by a range of populations of both species are reported. Tolerance to other toxic metals was also investigated. T. alpestre showed superior tolerance to M. verna in these experiments, and emerged as a metal-accumulating species. M. verna by contrast, operated some degree of metal exclusion, but metal uptake and distribution differed for the various metals in both species and seasonally. Differences in metal tolerance and uptake characteristics alone could not explain the different local distribution patterns in the field, as sites of similar metal status are colonized by both the two species together and by M. verna alone. A study of inter-population variation in morphological characters showed considerable genetically-based variation in both species. M. verna was however more variable. Some of the variation detected was interpreted as being ecotypic in origin. The contrasting breeding of the two species and their seed biology are considered to be major factors in explaining the present-day distributions of the two species. The tendency for inbreeding in T. alpestre has severely limited its genetic variability within populations and potential for spread. Seedling mortality of both species in their natural habitats is very high, and survival can be related to early shelter effects of neighbouring plants. Both species, however, emerge as weak competitors as predicted from their preference for open habitats with much more bare ground. The relevance of these studies to the interpretation of the present-day global distribution of the two species and their evolutionary biology is discussed.
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Hrušková, Karolína. "Populační dynamika kuřičky hadcové (Minuartia smejkalii)." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-445805.

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Serpentine areas in the Czech Republic form minor but important islands in the landscape with specific chemical properties such as high content of magnesium and other heavy metals. Due to this, serpentine is toxic for most plants. Increased demands on the survival and occurrence of plants lead to the emergence of serpentine specialists obligatorily specialized in these extreme habitats. Currently, serpentine areas are threatened by gradual overgrowth of sites, insufficient or poor site management and fragmentation or shrinkage of sites due to anthropogenic activities. Along with the disappearing localities, the serpentine specialists, are becoming highly endangered. Minuartia smejkalii is highly endangered serpentine specialist with an endemic occurrence in the Czech Republic with great need of its conservation. The aim of the work was to collect data on population dynamics of the species and identify habitat and climatic factors affecting population growth. We studied dynamics in all existing 7 populations during the period from 2006 to 2020 were collected. We linked these data to information on population dynamics, habitat and climatic factors and analysed them using Integral projection models (IPM). The study presents the importance of individual habitat and climatic conditions on the dynamics...
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Winder, Charles Thomas. "Levels and patterns of genetic diversity in the rare and endangered Cumberland Stitchwort, Minuartia cumberlandensis (Caryophyllaceae)." 2004. http://etd.utk.edu/2004/WinderCharles.pdf.

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Thesis (M.S.)--University of Tennessee, Knoxville, 2004.<br>Title from title page screen (viewed Feb. 2, 2005). Thesis advisor: Randall L. Small. Document formatted into pages (viii, 73 p. : ill. (some col.), maps). Vita. Includes bibliographical references (p. 39-44).
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Lindwall, Bruce Henning. "Long-term genetic consequences of habitat fragmentation: A study of isozyme variation in the alpine plants; Carex bigelowii Torr., Diapensia lapponica L., and Minuartia groenlandica Retz." 1999. https://scholarworks.umass.edu/dissertations/AAI9920622.

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This study uses habitats that have been naturally fragmented throughout the Holocene to examine the effects of habitat fragmentation on a much longer time scale. To investigate the long-term effects of habitat fragmentation on population genetic structure of Carex bigelowii, Diapensia lapponica , and Minuartia groenlandica, isozyme variation in fragmented patches of alpine tundra was compared to variation in sites from continuous alpine tundra. The questions posed by this study include: Is genetic variation reduced in fragmented habitat? Does gene flow occur between habitat fragments? What is the effect of fragment size on genetic variation? Have populations from fragments diverged more than populations separated by a similar distance in continuous habitat? Some of the results agree with the predictions of population genetic theory, and some do not. Dipensia lapponica and C. bigelowii have significantly less genetic variation in fragmented habitat. Contrary to theoretical predictions, M. groenlandica has significantly more genetic variation in fragmented habitat. Gene flow between populations of D. lapponica and C. bigelowii in fragmented habitat appears to be absent or reduced compared to unfragmented habitat. Gene flow between populations of M. groenlandica does not seem to have been affected by the scale of habitat fragmentation in this study. Correlation of genetic variation with fragment size is positive for C. bigelowii, not significant for D. lapponica and negative for M. groenlandica. Contrary to theoretical predictions, populations of M. groenlandica have significantly more genetic variation in small habitat patches than in large ones. Populations of D. lapponica and C. bigelowii have diverged more in fragmented habitat than in unfragmented habitat, possibly as a result of genetic drift. Minuartia groenlandica populations have not diverged more in fragmented than in unfragmented habitat. Diapensia lapponica, C. bigelowii, and M. groenlandica have virtually identical distributions in the northeast, and must have migrated into the region contemporaneously (on a geologic time scale) from southern refugia, yet have strikingly different patterns of genetic variation. This observation should serve as a cautionary note in attempts to infer past migration patterns from current patterns of genetic variation. (Abstract shortened by UMI.)
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Książki na temat "Minuartia"

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Angadi, Kiran Clare. An investigation into how soil mineralogy, soil geochemistry and plant ecology may affect the distribution of the matallophyte minuartia verna in the Pennines, UK. University of Birmingham, 1998.

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Części książek na temat "Minuartia"

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"OV37: Festuca ovina-Minuartia verna community: Minuartio-Thlaspietum alpestris Koch 1932." In British Plant Communities. Cambridge University Press, 2000. http://dx.doi.org/10.1017/cbo9780511541834.106.

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Dealing, Denise. "Plant-Herbivore Interactions." In Structure and Function of an Alpine Ecosystem. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195117288.003.0021.

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The alpine provides a tremendous opportunity for studying plant-herbivore interactions at the population, community, and ecosystem levels. For herbivores, variations in topography and microclimate result in a relatively large amount of spatial variation in plant communities within short distances (chapter 6). A large community of herbivores, from nematodes to grasshoppers to elk, occurs on Niwot Ridge. Furthermore, given the low rates of nutrient availability in alpine soils (Fisk and Schmidt 1995; chapter 12) combined with the slow-growing perennial habit of the vegetation, alpine plants should, in theory, invest heavily in defense against herbivores (Coley et al. 1985). The goal of this chapter is to provide: (1) a summary of the feeding behaviors of the herbivores on Niwot Ridge, (2) information on the nutritional and secondary chemistry of plants on Niwot Ridge as it relates to herbivory, and (3) a review of hypotheses on community dynamics of herbivores and plants relevant to the alpine. The ultimate objective is to provide a synthesis of information that will stimulate interest in alpine tundra as a system for studying the dynamics of plant-herbivore interactions at all levels of ecological organization. The flora of Niwot Ridge has been divided into six communities (May and Webber 1982; chapter 6). Regardless of community association, nearly all of the plant species occurring on the ridge are perennials and several are very long lived (May and Webber 1982). Communities can change across small spatial scales (meters), and community origin and maintenance are believed to be largely determined by abiotic factors (Walker et al. 1994; chapter 6). However, several studies suggest that biotic factors such as herbivory may have a significant impact on plant community dynamics (Huntly et al. 1986; Davies 1994). There is significant variation in the nutritional composition of plants on Niwot Ridge. Generally, and in the absence of plant secondary compounds, species that are high in nitrogen and low in fiber are presumed to be the most desirable as forage. Based solely on these nutritional variables, the clover Trifolium parryi is hypothesized to be one of the more-preferred forages, whereas alpine sandwort, Minuartia obtusiloba, should be one of the less-preferred food items.
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Alexander, Earl B., Roger G. Coleman, Todd Keeler-Wolfe, and Susan P. Harrison. "Serpentine Plant Life of Western North America." In Serpentine Geoecology of Western North America. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195165081.003.0016.

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Serpentine plant life varies dramatically across western North America from north to south and, to a lesser extent, from the coast inland. At the latitudinal extremes in Alaska and Baja California, it follows patterns seen in other climatically harsh parts of the world (as discussed in chapter 10), but the species composition is not very distinctive and there are few endemics. In between, in Washington, Oregon, and especially in the California Floristic Province, lies a great diversity of distinctive serpentine vegetation types and endemic species. This chapter outlines the coarse patterns of variation in vegetation structure and endemic species richness across this region, as a prelude to chapter 12, which describes specific serpentine vegetation types in detail. Little has been published about the serpentine vegetation of Alaska and the Yukon. The Serpentine Slide Research Natural Area in central Alaska was described by Juday (1992) as having a mixture of white spruce (Picea glauca) and paper birch (Betula papyrifera) with Rosa acicularis, Juniperus communis, and Vaccinium uliginosum in the understory. Several herbs are shared with Swedish serpentines (e.g., Campanula rotundifolia, Minuartia rubella, Rumex acetosa, Saxifraga oppositifolia, Silene acaulis); several others showed northern range extensions on serpentine (see chapter 9). The ultramafic vegetation of Golden Mountain in southeast Alaska was described by Alexander et al. (1989) as alpine meadow containing forbs, graminoids, and low shrubs, with a transition through low shrubs and stunted lodgepole pines (Pinus contorta) down to spruce (Picea sitchensis)–hemlock (mainly Tsuga mertensiana) forest, with shrubs and some cedar (Chamaecyparis nootkatensis). The forest to alpine transition was lower on serpentine than on other soils. No serpentine endemic species are known from this region. From south–central British Columbia to central Oregon, serpentine has been described by Kruckeberg (1969, 1992) as supporting open stands of various conifers, which are either a subset of the species occurring in adjacent denser forests on other soils or represent elevational or geographic range shifts. Understories are sparse and may include graminoids, perennial forbs, and shrubs. On rocky ridgetops and at higher elevations and latitudes, these conifer plant communities give way gradually to alpine tundra.
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Streszczenia konferencji na temat "Minuartia"

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Pánková, Hana, Mária Šurinová, Bojana Stojanova, and Zuzana Münzbergová. "Scientific background of ex-situ conservation and reintroduction of endemic plant species Minuartia smejkalii." In 5th European Congress of Conservation Biology. Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107488.

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Raporty organizacyjne na temat "Minuartia"

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Denchev, Teodor, and Cvetomir Denchev. Microbotryum Minuartiae and M. succisae (Microbotryales, Pucciniomycotina) Newly Recorded from Bulgaria. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2021. http://dx.doi.org/10.7546/crabs.2021.11.06.

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