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المؤلفZhang, Jinghui
المؤلفGillet, François
المؤلفBartha, Sándor
المؤلفAlatalo, Juha Mikael
المؤلفBiurrun, Idoia
المؤلفDembicz, Iwona
المؤلفGrytnes, John Arvid
المؤلفJaunatre, Renaud
المؤلفPielech, Remigiusz
المؤلفVan Meerbeek, Koenraad
المؤلفVynokurov, Denys
المؤلفWidmer, Stefan
المؤلفAleksanyan, Alla
المؤلفBhatta, Kuber Prasad
المؤلفCampos, Juan Antonio
المؤلفCzortek, Patryk
المؤلفDolezal, Jiri
المؤلفEssl, Franz
المؤلفGarcía-Mijangos, Itziar
المؤلفGuarino, Riccardo
المؤلفGüler, Behlül
المؤلفHájek, Michal
المؤلفKuzemko, Anna
المؤلفLi, Frank Yonghong
المؤلفLöbel, Swantje
المؤلفMoradi, Halime
المؤلفNaqinezhad, Alireza
المؤلفSilva, Vasco
المؤلفŠmerdová, Eva
المؤلفSonkoly, Judit
المؤلفStifter, Simon
المؤلفTalebi, Amir
المؤلفTörök, Péter
المؤلفWhite, Hannah
المؤلفWu, Jianshuang
المؤلفDengler, Jürgen
تاريخ الإتاحة2021-07-13T10:34:17Z
تاريخ النشر2021-05-01
اسم المنشورJournal of Vegetation Science
المعرّفhttp://dx.doi.org/10.1111/jvs.13044
الاقتباسZhang, J, Gillet, F, Bartha, S, et al. Scale dependence of species–area relationships is widespread but generally weak in Palaearctic grasslands. J Veg Sci. 2021; 32:e13044. https://doi.org/10.1111/jvs.13044
الرقم المعياري الدولي للكتاب11009233
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85109201038&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/21422
الملخصQuestions: Species–area relationships (SARs) are fundamental for understanding biodiversity patterns and are generally well described by a power law with a constant exponent z. However, z-values sometimes vary across spatial scales. We asked whether there is a general scale dependence of z-values at fine spatial grains and which potential drivers influence it. Location: Palaearctic biogeographic realm. Methods: We used 6,696 nested-plot series of vascular plants, bryophytes and lichens from the GrassPlot database with two or more grain sizes, ranging from 0.0001 m² to 1,024 m² and covering diverse open habitats. The plots were recorded with two widespread sampling approaches (rooted presence = species “rooting” inside the plot; shoot presence = species with aerial parts inside). Using Generalized Additive Models, we tested for scale dependence of z-values by evaluating if the z-values differ with gran size and tested for differences between the sampling approaches. The response shapes of z-values to grain were classified by fitting Generalized Linear Models with logit link to each series. We tested whether the grain size where the maximum z-value occurred is driven by taxonomic group, biogeographic or ecological variables. Results: For rooted presence, we found a strong monotonous increase of z-values with grain sizes for all grain sizes below 1 m². For shoot presence, the scale dependence was much weaker, with hump-shaped curves prevailing. Among the environmental variables studied, latitude, vegetation type, naturalness and land use had strong effects, with z-values of secondary peaking at smaller grain sizes. Conclusions: The overall weak scale dependence of z-values underlines that the power function generally is appropriate to describe SARs within the studied grain sizes in continuous open vegetation, if recorded with the shoot presence method. When clear peaks of z-values occur, this can be seen as an expression of granularity of species composition, partly driven by abiotic environment.
اللغةen
الناشرWiley
الموضوعbeta diversity
grassland
GrassPlot
Heterogeneity
Palaearctic
power law
rooted presence
scale dependence
shoot presence
species–area relationship
vegetation
z-value
العنوانScale dependence of species–area relationships is widespread but generally weak in Palaearctic grasslands
النوعArticle
رقم العدد3
رقم المجلد32
dc.accessType Full Text


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