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@article{1367422,
author = {Wagner, Viktoria and Chytrý, Milan and Zelený, David and von Wehrden, Henrik and Brinkert, Annika and Danihelka, Jiří and Jansen, Florian and Hölzel, Norbert and Kamp, Johannes and Lustyk, Pavel and Merunková, Kristina and Palpurina, Salza and Preislerová, Zdenka and Wesche, Karsten},
article_location = {Hoboken, NJ USA},
article_number = {5},
doi = {http://dx.doi.org/10.1111/oik.03369},
keywords = {calcicole; calcifuge; edaphic niche; species distribution; response curve},
language = {eng},
issn = {0030-1299},
journal = {Oikos},
title = {Regional differences in soil pH niche among dry grassland plants in Eurasia},
url = {http://onlinelibrary.wiley.com/doi/10.1111/oik.03369/full},
volume = {126},
year = {2017}
}
TY - JOUR
ID - 1367422
AU - Wagner, Viktoria - Chytrý, Milan - Zelený, David - von Wehrden, Henrik - Brinkert, Annika - Danihelka, Jiří - Jansen, Florian - Hölzel, Norbert - Kamp, Johannes - Lustyk, Pavel - Merunková, Kristina - Palpurina, Salza - Preislerová, Zdenka - Wesche, Karsten
PY - 2017
TI - Regional differences in soil pH niche among dry grassland plants in Eurasia
JF - Oikos
VL - 126
IS - 5
SP - 660-670
EP - 660-670
PB - Wiley
SN - 00301299
KW - calcicole
KW - calcifuge
KW - edaphic niche
KW - species distribution
KW - response curve
UR - http://onlinelibrary.wiley.com/doi/10.1111/oik.03369/full
N2 - Soil pH is a key predictor of plant species occurrence owing to its effect on the availability of nutrients and phytotoxic metals. Although regional differences in realized soil pH niche (‘niche shifts’) have been reported since the 19th century, no study has disentangled how they are influenced by spatial differences in substrate availability, macroclimate, and competitors. We linked plot-level data on species occurrence and measured soil pH from dry grasslands in eight regions across Eurasia (n = 999 plots), spanning a geographic gradient of 6862 km. We calculated regional shifts in niche optimum (Dopt) and width (Dwidth) for 73 Species × Region 1 × Region 2 combinations (SRRs; 38 study species) using extended Huisman–Olff–Fresco models. Next, we used commonality analysis to partition the contribution of substrate availability, precipitation, and species traits indicative of competitive ability to variation in regional niche shifts. Shifts in optimum were rare (5% of SRRs with Dopt >= 1 pH units) but many species did not show optima within regions. By contrast, shifts in niche width were common (22% of SRRs with Dwidth >= 1 pH units) and there were pronounced interspecific differences. Whereas none of the three predictors significantly explained shifts in niche optimum, common and unique effects of substrate availability and precipitation accounted for 85% of variation in niche width. Our results suggest that substrate availability and precipitation could be the driving factors behind species regional shifts in niche width. Studies that address additional factors, such as other edaphic niches, and their variability at the regional and micro-scale will improve our understanding of the mechanisms underlying species distributions.
ER -
WAGNER, Viktoria, Milan CHYTRÝ, David ZELENÝ, Henrik VON WEHRDEN, Annika BRINKERT, Jiří DANIHELKA, Florian JANSEN, Norbert HÖLZEL, Johannes KAMP, Pavel LUSTYK, Kristina MERUNKOVÁ, Salza PALPURINA, Zdenka PREISLEROVÁ and Karsten WESCHE. Regional differences in soil pH niche among dry grassland plants in Eurasia. \textit{Oikos}. Hoboken, NJ USA: Wiley, 2017, vol.~126, No~5, p.~660-670. ISSN~0030-1299. Available from: https://dx.doi.org/10.1111/oik.03369.
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