Fine-scale coexistence patterns along a productivity gradient in wet meadows: shifts from trait convergence to divergence

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F16%3A43890741" target="_blank" >RIV/60076658:12310/16:43890741 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/16:00448469 RIV/00216208:11310/16:10325404

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1111/ecog.01723/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/ecog.01723/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ecog.01723" target="_blank" >10.1111/ecog.01723</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fine-scale coexistence patterns along a productivity gradient in wet meadows: shifts from trait convergence to divergence

Popis výsledku v původním jazyce

Semi-natural meadows host a great number of species coexisting at fine spatial scales. Different assembly mechanisms, related to differences in functional traits between species, can influence such coexistence. Coexisting species could be either functionally dissimilar to occupy different niches (divergence') or functionally similar due to exclusion of species with traits less adapted to the prevailing abiotic and biotic conditions (convergence'). Various theories differently predict how trait convergence and divergence should differ due to disturbance, along productivity gradients, and across different functional traits. We tested such theories in 21 wet meadows of different productivity in central Europe. In each meadow, four 1 x 1 m plots were established in which disturbance by mowing was combined with fertilization. Species presence was recorded in 100 quadrats 10 x 10 cm in size within the plots over five years. Convergence and divergence were assessed at very fine spatial scales (10 x 10 cm) to focus on the processes driven by the interactions for similar resources. Convergence emerged as the dominant pattern for all traits and across all years. It was particularly strong in the least productive conditions while divergence emerged in some of the most productive meadows. Mowing increased convergence in meadows with low productivity, but increased divergence in productive meadows. Fertilization generally increased convergence, with this increase being more pronounced in mown plots. Convergence in unproductive conditions could be caused by either higher fitness of stress-tolerant species (more abundant in the species pool of these sites) or by functionally similar species sharing similar patches within fine-scale heterogeneous plots. This outcome also suggests abiotic filters can have an important role at fine scales, where plant-ecological theory usually predicts the prevalence of biotic processes.

Název v anglickém jazyce

Fine-scale coexistence patterns along a productivity gradient in wet meadows: shifts from trait convergence to divergence

Popis výsledku anglicky

Semi-natural meadows host a great number of species coexisting at fine spatial scales. Different assembly mechanisms, related to differences in functional traits between species, can influence such coexistence. Coexisting species could be either functionally dissimilar to occupy different niches (divergence') or functionally similar due to exclusion of species with traits less adapted to the prevailing abiotic and biotic conditions (convergence'). Various theories differently predict how trait convergence and divergence should differ due to disturbance, along productivity gradients, and across different functional traits. We tested such theories in 21 wet meadows of different productivity in central Europe. In each meadow, four 1 x 1 m plots were established in which disturbance by mowing was combined with fertilization. Species presence was recorded in 100 quadrats 10 x 10 cm in size within the plots over five years. Convergence and divergence were assessed at very fine spatial scales (10 x 10 cm) to focus on the processes driven by the interactions for similar resources. Convergence emerged as the dominant pattern for all traits and across all years. It was particularly strong in the least productive conditions while divergence emerged in some of the most productive meadows. Mowing increased convergence in meadows with low productivity, but increased divergence in productive meadows. Fertilization generally increased convergence, with this increase being more pronounced in mown plots. Convergence in unproductive conditions could be caused by either higher fitness of stress-tolerant species (more abundant in the species pool of these sites) or by functionally similar species sharing similar patches within fine-scale heterogeneous plots. This outcome also suggests abiotic filters can have an important role at fine scales, where plant-ecological theory usually predicts the prevalence of biotic processes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

<a href="/cs/project/GAP505%2F12%2F1296" target="_blank" >GAP505/12/1296: Funkční zásobník druhů: vysvětlení nerealizované diverzity a její funkce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ecography

ISSN

0906-7590

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

338-348

Kód UT WoS článku

000371528800009

EID výsledku v databázi Scopus

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