Two dimensions of demographic differentiation of species in a mountain grassland community: An experimental test

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F19%3A00509728" target="_blank" >RIV/67985939:_____/19:00509728 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/19:10403247

Výsledek na webu

<a href="http://hdl.handle.net/11104/0301638" target="_blank" >http://hdl.handle.net/11104/0301638</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2435.13349" target="_blank" >10.1111/1365-2435.13349</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Two dimensions of demographic differentiation of species in a mountain grassland community: An experimental test

Popis výsledku v původním jazyce

There is remarkable variation in life histories of coexisting plant species. These alternative designs for the given set of environmental conditions are likely to play a role in species niche differences and thus may underlie species coexistence, although there is no clear demonstration of it. Currently available data on within-community differentiation concern primarily easy and measurable traits that are not fully informative of life history variation. Their relevance for functional differentiation of species and species coexistence is far from clear. Here, we examined differentiation of coexisting species in demographic parameters and how it determines species' response to neighbours. We determined these parameters for a set of 21 co-occurring species by fitting a process-based model to a long-term (30 years) data series of shoot counts. We examined the functional relevance of these parameters using species responses in a field removal experiment. We further asked with which functional traits they are correlated. Species were differentiated along two largely independent axes: (a) slow vs. fast, separating species according to instantaneous growth rate, competitive response and intraspecific density dependence, and (b) dispersal vs. local dynamics, which separated species with strong dispersal (by seeds or vegetative) from species that tended to stay in the occupied spot. While the slow-fast axis was associated with commonly used leaf and seed traits, the dispersal axis was best predicted by lateral spreading distance. Each of these two axes predicted different components of species' responses to neighbour competition: the slow-fast axis was a good predictor of the short-term response, whereas dispersal axis was a good predictor of the long-term response. Synthesis. Demographic differentiation of coexisting species resembles to an important degree demographic differentiation known from large-scale comparisons. This differentiation is functionally meaningful also at the fine scale, its role in species' responses to competition implies it is involved in species niche differentiation and coexistence. While seed and leaf traits are important correlates of demographic differentiation, a hitherto underappreciated trait, viz. lateral spreading distance, is an important predictor of the dispersal axis at the fine scale and should be more widely used. A plain language summary is available for this article.

Název v anglickém jazyce

Two dimensions of demographic differentiation of species in a mountain grassland community: An experimental test

Popis výsledku anglicky

There is remarkable variation in life histories of coexisting plant species. These alternative designs for the given set of environmental conditions are likely to play a role in species niche differences and thus may underlie species coexistence, although there is no clear demonstration of it. Currently available data on within-community differentiation concern primarily easy and measurable traits that are not fully informative of life history variation. Their relevance for functional differentiation of species and species coexistence is far from clear. Here, we examined differentiation of coexisting species in demographic parameters and how it determines species' response to neighbours. We determined these parameters for a set of 21 co-occurring species by fitting a process-based model to a long-term (30 years) data series of shoot counts. We examined the functional relevance of these parameters using species responses in a field removal experiment. We further asked with which functional traits they are correlated. Species were differentiated along two largely independent axes: (a) slow vs. fast, separating species according to instantaneous growth rate, competitive response and intraspecific density dependence, and (b) dispersal vs. local dynamics, which separated species with strong dispersal (by seeds or vegetative) from species that tended to stay in the occupied spot. While the slow-fast axis was associated with commonly used leaf and seed traits, the dispersal axis was best predicted by lateral spreading distance. Each of these two axes predicted different components of species' responses to neighbour competition: the slow-fast axis was a good predictor of the short-term response, whereas dispersal axis was a good predictor of the long-term response. Synthesis. Demographic differentiation of coexisting species resembles to an important degree demographic differentiation known from large-scale comparisons. This differentiation is functionally meaningful also at the fine scale, its role in species' responses to competition implies it is involved in species niche differentiation and coexistence. While seed and leaf traits are important correlates of demographic differentiation, a hitherto underappreciated trait, viz. lateral spreading distance, is an important predictor of the dispersal axis at the fine scale and should be more widely used. A plain language summary is available for this article.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA17-05506S" target="_blank" >GA17-05506S: Stabilní ale dynamické: mechanismy určující dlouhodobou dynamiku diverzity v temperátních trávnících</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Functional Ecology

ISSN

0269-8463

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1514-1523

Kód UT WoS článku

000479317100013

EID výsledku v databázi Scopus

2-s2.0-85065204354