2019
The type of nutrient limitation affects the plant species richness-productivity relationship: Evidence from dry grasslands across Eurasia
PALPURINA, Salza, Milan CHYTRÝ, Norbert HӦLZEL, Lubomír TICHÝ, Viktoria WAGNER et. al.Základní údaje
Originální název
The type of nutrient limitation affects the plant species richness-productivity relationship: Evidence from dry grasslands across Eurasia
Autoři
PALPURINA, Salza (100 Bulharsko, domácí), Milan CHYTRÝ (203 Česká republika, garant, domácí), Norbert HӦLZEL (276 Německo), Lubomír TICHÝ (203 Česká republika, domácí), Viktoria WAGNER (276 Německo, domácí), Michal HORSÁK (203 Česká republika, domácí), Irena AXMANOVÁ (203 Česká republika, domácí), Michal HÁJEK (203 Česká republika, domácí), Petra HÁJKOVÁ (203 Česká republika, domácí), Martin FREITAG (276 Německo), Zdeňka LOSOSOVÁ (203 Česká republika, domácí), Wanja MATHAR (276 Německo), Rossen TZONEV (100 Bulharsko), Jiří DANIHELKA (203 Česká republika, domácí) a Pavel DŘEVOJAN (203 Česká republika, domácí)
Vydání
Journal of Ecology, Wiley, 2019, 0022-0477
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.762
Kód RIV
RIV/00216224:14310/19:00107923
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000467417500002
Klíčová slova anglicky
above-ground biomass; alpha diversity; dry grassland; fine-scale plant species richness; N; P ratio; nitrogen; nutrient limitation; phosphorus; productivity; species richness-productivity relationship
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 3. 2020 13:50, Mgr. Marie Šípková, DiS.
Anotace
V originále
The species richness-productivity relationship is one of the most debated patterns in ecology. Species coexistence theory suggests that it could be tightly linked to the type of nutrient limitation (no limitation, single-nutrient limitation, colimitation by several nutrients). Yet, the effects of nutrient limitation on the species richness-productivity relationship have been rarely studied at the regional and continental scales. Combining the predictions of the humped-back model and the niche dimension hypothesis, we hypothesized that an increase in plant species richness with the number of different limiting nutrients is detectable only at higher productivity levels, at which competition for nutrients is more intense. Therefore, we expected the shape of the diversity-productivity relationship to differ between sites colimited by nitrogen (N) and phosphorus (P), sites limited by a single nutrient (either N or P), and sites not limited by any of these nutrients. To test this hypothesis, we used species richness data collected in 10 m x 10 m plots at 694 temperate dry grassland sites across eight regions in northern Eurasia. Productivity ranged from 10 to similar to 500 g/m(2) of above-ground standing biomass. The type of nutrient limitation was identified by critical nutrient ratios alone and their combination with critical nutrient concentrations measured in the plant tissue. Relationships were analysed using generalized linear and mixed-effect models. In line with our expectations, species richness of Eurasian temperate dry grasslands increased more steeply and peaked higher under higher productivity levels at N&P-colimited sites. When nutrient limitation was assessed by both ratios and concentrations, species richness at N&P-colimited sites continued to increase monotonically until the maximum productivity sampled in this study. In contrast, at sites with a single-nutrient limitation or no limitation, the peak in species richness was lower and occurred at a lower productivity of about 300-400 g/m(2). Synthesis. We provide the first evidence that the species richness-productivity relationship may depend on the type of nutrient limitation as predicted by the species coexistence theory. To generalize these findings, the role of nutrient limitation needs to be tested in other ecosystems, including more productive plant communities.
Návaznosti
GB14-36079G, projekt VaV |
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