J 2021

Scale dependence of species-area relationships is widespread but generally weak in Palaearctic grasslands

ZHANG, Jinghui, François GILLET, Sándor BARTHA, Juha Mikael ALATALO, Idoia BIURRUN et. al.

Základní údaje

Originální název

Scale dependence of species-area relationships is widespread but generally weak in Palaearctic grasslands

Autoři

ZHANG, Jinghui (garant), François GILLET, Sándor BARTHA, Juha Mikael ALATALO, Idoia BIURRUN, Iwona DEMBICZ, John-Arvid GRYTNES, Renaud JAUNATRE, Remigiusz PIELECH, Koenraad VAN MEERBEEK, Denys VYNOKUROV, Stefan WIDMER, Alla ALEKSANYAN, Kuber Prasad BHATTA, Juan Antonio CAMPOS, Patryk CZORTEK, Jiri DOLEZAL, Franz ESSL, Itziar GARCIA-MIJANGOS, Riccardo GUARINO, Behlül GÜLER, Michal HÁJEK (203 Česká republika, domácí), Anna KUZEMKO, Frank Yonghong LI, Swantje LÖBEL, Halime MORADI, Alireza NAQINEZHAD, Vasco SILVA, Eva ŠMERDOVÁ (203 Česká republika, domácí), Judit SONKOLY, Simon STIFTER, Amir TALEBI, Péter TÖRÖK, Hannah WHITE, Jianshuang WU a Jürgen DENGLER

Vydání

Journal of Vegetation Science, Hoboken, Wiley, 2021, 1100-9233

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.389

Kód RIV

RIV/00216224:14310/21:00123559

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000666878600009

Klíčová slova anglicky

beta diversity; grassland; GrassPlot; Heterogeneity; Palaearctic; power law; rooted presence; scale dependence; shoot presence; species-area relationship; vegetation; z-value

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 18. 1. 2022 17:51, Mgr. Marie Šípková, DiS.

Anotace

V originále

Questions 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 m(2) to 1,024 m(2) 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 m(2). 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.