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@article{1367438,
author = {Palpurina, Salza and Wagner, Viktoria and von Wehrden, Henrik and Hájek, Michal and Horsák, Michal and Brinkert, Annika and Hölzel, Norbert and Wesche, Karsten and Kamp, Johannes and Hájková, Petra and Danihelka, Jiří and Lustyk, Pavel and Merunková, Kristina and Preislerová, Zdenka and Kočí, Martin and Kubešová, Svatava and Cherosov, Mikhail and Ermakov, Nikolai and German, Dmitry A. and Gogoleva, Paraskovia and Lashchinsky, Nikolai and Martynenko, Vassiliy and Chytrý, Milan},
article_location = {Hoboken},
article_number = {4},
doi = {http://dx.doi.org/10.1111/geb.12549},
keywords = {alpha diversity; diversity–environment relationship; dry grassland; macroecology; plant species richness; precipitation; semi-arid ecosystem; soil chemistry; soil pH; steppe},
language = {eng},
issn = {1466-822X},
journal = {Global Ecology and Biogeography},
title = {The relationship between plant species richness and soil pH vanishes with increasing aridity across Eurasian dry grasslands.},
url = {http://onlinelibrary.wiley.com/doi/10.1111/geb.12549/abstract},
volume = {26},
year = {2017}
}
TY - JOUR
ID - 1367438
AU - Palpurina, Salza - Wagner, Viktoria - von Wehrden, Henrik - Hájek, Michal - Horsák, Michal - Brinkert, Annika - Hölzel, Norbert - Wesche, Karsten - Kamp, Johannes - Hájková, Petra - Danihelka, Jiří - Lustyk, Pavel - Merunková, Kristina - Preislerová, Zdenka - Kočí, Martin - Kubešová, Svatava - Cherosov, Mikhail - Ermakov, Nikolai - German, Dmitry A. - Gogoleva, Paraskovia - Lashchinsky, Nikolai - Martynenko, Vassiliy - Chytrý, Milan
PY - 2017
TI - The relationship between plant species richness and soil pH vanishes with increasing aridity across Eurasian dry grasslands.
JF - Global Ecology and Biogeography
VL - 26
IS - 4
SP - 425-434
EP - 425-434
PB - Wiley
SN - 1466822X
KW - alpha diversity
KW - diversity–environment relationship
KW - dry grassland
KW - macroecology
KW - plant species richness
KW - precipitation
KW - semi-arid ecosystem
KW - soil chemistry
KW - soil pH
KW - steppe
UR - http://onlinelibrary.wiley.com/doi/10.1111/geb.12549/abstract
L2 - http://onlinelibrary.wiley.com/doi/10.1111/geb.12549/abstract
N2 - Aim Soil pH is considered an important driver of fine-scale plant species richness in terrestrial ecosystems. However, it is unclear to what extent this relationship is influenced by precipitation, which often directly affects both soil pH and species richness. We asked: (1) what is the relationship between fine-scale vascular plant species richness and soil pH in regions with different levels of precipitation and (2) what are the relative effects of soil pH and precipitation on species richness? Location Dry grasslands in eight regions of northern Eurasia. Methods Species richness and soil pH were measured in 1055 10 m × 10 m plots and precipitation values were derived from global datasets. Relationships between variables were explored using general linear models, mixed-effect models and partial regressions. Variation partitioning was used to assess the relative effect of each predictor on species richness. Results In wetter regions, soil pH range was broader, mean species richness was higher and the richness–pH relationship was unimodal. In drier regions, mean soil pH was higher and its range narrower, species richness was on average lower and less variable, and the richness–pH relationship was negative or absent. The richness–pH relationship persisted after controlling for the effect of precipitation, but precipitation, uniquely or together with soil pH, explained more variation in species richness in most regions than did pH alone. Main conclusions The relationship between plant species richness and soil pH in dry grasslands changes from unimodal, through negative, to none with decreasing regional precipitation in Eurasia. However, it seems that the species richness–soil pH relationship in dry grasslands over broad areas is substantially influenced and confounded by precipitation either indirectly, by shortening and shifting the pH gradient, or directly, by decreasing the negative effects of drought stress on richness.
ER -
PALPURINA, Salza, Viktoria WAGNER, Henrik VON WEHRDEN, Michal HÁJEK, Michal HORSÁK, Annika BRINKERT, Norbert HÖLZEL, Karsten WESCHE, Johannes KAMP, Petra HÁJKOVÁ, Jiří DANIHELKA, Pavel LUSTYK, Kristina MERUNKOVÁ, Zdenka PREISLEROVÁ, Martin KOČÍ, Svatava KUBEŠOVÁ, Mikhail CHEROSOV, Nikolai ERMAKOV, Dmitry A. GERMAN, Paraskovia GOGOLEVA, Nikolai LASHCHINSKY, Vassiliy MARTYNENKO and Milan CHYTRÝ. The relationship between plant species richness and soil pH vanishes with increasing aridity across Eurasian dry grasslands. \textit{Global Ecology and Biogeography}. Hoboken: Wiley, 2017, vol.~26, No~4, p.~425-434. ISSN~1466-822X. Available from: https://dx.doi.org/10.1111/geb.12549.
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