Niche differentiation of two sibling wolf spider species, Pardosa lugubris and Pardosa alacris, along a canopy openness gradient

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F16%3A43908646" target="_blank" >RIV/62156489:43410/16:43908646 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/16:00091243

Výsledek na webu

<a href="http://dx.doi.org/10.1636/M15-46.1" target="_blank" >http://dx.doi.org/10.1636/M15-46.1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1636/M15-46.1" target="_blank" >10.1636/M15-46.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Niche differentiation of two sibling wolf spider species, Pardosa lugubris and Pardosa alacris, along a canopy openness gradient

Popis výsledku v původním jazyce

Phylogenetic niche conservatism can cause strong interspecific competition among closely related species leading to competitive exclusion from local communities or meta-communities. However, the coexistence of close relatives is often reported. One of the most frequent mechanisms mediating such coexistence is resource partitioning. Here, we investigated the niche differentiation of two sibling spider species, Pardosa alacris C.L. Koch, 1833 and P. lugubris Walckenaer, 1802, along a canopy openness gradient. We further investigated differences in body size as an additional axis for niche partitioning. We explored niche partitioning along the canopy openness gradient at eight locations. In each afforested location, 60-m-long transects were established consisting of five pitfall traps placed at regular 15-m intervals along the gradient. We measured the body size of individuals of both species collected at the gradient's extremes. We found that the two Pardosa species occurred syntopically but had clearly differentiated spatial niches along the canopy openness gradient. Pardosa lugubris displayed a preference for closed canopies in dense forest habitats and its abundance gradually decreased as the canopy opened while the opposite was the case for P. alacris. The two species also differed in body size. Each species was larger at its preferred gradient extreme than was the other species. The coexistence of the two Pardosa species was mediated mainly by spatial niche partitioning. Body size differences may represent another axis for niche partitioning.

Název v anglickém jazyce

Niche differentiation of two sibling wolf spider species, Pardosa lugubris and Pardosa alacris, along a canopy openness gradient

Popis výsledku anglicky

Phylogenetic niche conservatism can cause strong interspecific competition among closely related species leading to competitive exclusion from local communities or meta-communities. However, the coexistence of close relatives is often reported. One of the most frequent mechanisms mediating such coexistence is resource partitioning. Here, we investigated the niche differentiation of two sibling spider species, Pardosa alacris C.L. Koch, 1833 and P. lugubris Walckenaer, 1802, along a canopy openness gradient. We further investigated differences in body size as an additional axis for niche partitioning. We explored niche partitioning along the canopy openness gradient at eight locations. In each afforested location, 60-m-long transects were established consisting of five pitfall traps placed at regular 15-m intervals along the gradient. We measured the body size of individuals of both species collected at the gradient's extremes. We found that the two Pardosa species occurred syntopically but had clearly differentiated spatial niches along the canopy openness gradient. Pardosa lugubris displayed a preference for closed canopies in dense forest habitats and its abundance gradually decreased as the canopy opened while the opposite was the case for P. alacris. The two species also differed in body size. Each species was larger at its preferred gradient extreme than was the other species. The coexistence of the two Pardosa species was mediated mainly by spatial niche partitioning. Body size differences may represent another axis for niche partitioning.

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

<a href="/cs/project/EE2.3.20.0267" target="_blank" >EE2.3.20.0267: Výmladkové lesy jako produkční a biologická alternativa budoucnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Arachnology

ISSN

0161-8202

e-ISSN

—

Svazek periodika

44

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

46-51

Kód UT WoS článku

000375167800005

EID výsledku v databázi Scopus

2-s2.0-84960848056