The role of biotic interactions in plant community assembly: What is the community species pool?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F17%3A43895784" target="_blank" >RIV/60076658:12310/17:43895784 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077344:_____/17:00481132

Výsledek na webu

<a href="https://ac.els-cdn.com/S1146609X16303757/1-s2.0-S1146609X16303757-main.pdf?_tid=762a5410-f9ef-11e7-a8d2-00000aab0f02&acdnat=1516019433_74a8c6ee239fbcbfe0b478ef1475dd71" target="_blank" >https://ac.els-cdn.com/S1146609X16303757/1-s2.0-S1146609X16303757-main.pdf?_tid=762a5410-f9ef-11e7-a8d2-00000aab0f02&acdnat=1516019433_74a8c6ee239fbcbfe0b478ef1475dd71</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actao.2017.10.011" target="_blank" >10.1016/j.actao.2017.10.011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The role of biotic interactions in plant community assembly: What is the community species pool?

Popis výsledku v původním jazyce

Differences in plant species composition between a community and its species pool are considered to reflect the effect of community filters. If we define the species pool as a set of species able to reach a site and form a viable population in a given abiotic environment (i.e. to pass the dispersal and abiotic filter), the difference in species composition should correspond to the effect of biotic interactions. However, most of the operational definitions of the species pool are based on co-occurrence patterns and thus also reflect the effect of biotic relationships, including definitions based on functional plant traits, Ellenberg indicator values or Beals index. We conducted two seed introduction experiments in an oligotrophic wet meadow with the aim of demonstrating that many species excluded, according to the above definitions, from a species pool are in fact able to establish there successfully if competition is removed. In sowing experiments, we studied the establishment and survival of species after the removal of competition (i.e. in artificial gaps) and in intact vegetation. We also investigated inter-annual variability of seed germination and seedling establishment and competitive exclusion of sown species. The investigated species also included those from very different habitats (i.e. species with very low corresponding Beals index or Ellenberg indicator values that were different from the target community weighted mean). Many of these species were able to grow in the focal wet meadow if competition was removed, but they did not establish and survive in the intact community. These species are thus not limited by abiotic conditions, but by the biotic filter. We also recorded a great inter-annual variability in seed germination and seedling establishment.

Název v anglickém jazyce

The role of biotic interactions in plant community assembly: What is the community species pool?

Popis výsledku anglicky

Differences in plant species composition between a community and its species pool are considered to reflect the effect of community filters. If we define the species pool as a set of species able to reach a site and form a viable population in a given abiotic environment (i.e. to pass the dispersal and abiotic filter), the difference in species composition should correspond to the effect of biotic interactions. However, most of the operational definitions of the species pool are based on co-occurrence patterns and thus also reflect the effect of biotic relationships, including definitions based on functional plant traits, Ellenberg indicator values or Beals index. We conducted two seed introduction experiments in an oligotrophic wet meadow with the aim of demonstrating that many species excluded, according to the above definitions, from a species pool are in fact able to establish there successfully if competition is removed. In sowing experiments, we studied the establishment and survival of species after the removal of competition (i.e. in artificial gaps) and in intact vegetation. We also investigated inter-annual variability of seed germination and seedling establishment and competitive exclusion of sown species. The investigated species also included those from very different habitats (i.e. species with very low corresponding Beals index or Ellenberg indicator values that were different from the target community weighted mean). Many of these species were able to grow in the focal wet meadow if competition was removed, but they did not establish and survive in the intact community. These species are thus not limited by abiotic conditions, but by the biotic filter. We also recorded a great inter-annual variability in seed germination and seedling establishment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Acta Oecologica

ISSN

1146-609X

e-ISSN

—

Svazek periodika

85

Číslo periodika v rámci svazku

NOV 2017

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

7

Strana od-do

150-156

Kód UT WoS článku

000418979900019

EID výsledku v databázi Scopus

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