Trophic niche partitioning in communities of African annual fish: evidence from stable isotopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F14%3A00398933" target="_blank" >RIV/68081766:_____/14:00398933 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10750-013-1652-0" target="_blank" >http://dx.doi.org/10.1007/s10750-013-1652-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10750-013-1652-0" target="_blank" >10.1007/s10750-013-1652-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Trophic niche partitioning in communities of African annual fish: evidence from stable isotopes

Popis výsledku v původním jazyce

Annual killifish of the genus Nothobranchius often co-occur in temporary savannah pools. Their space- and time-limited environment does not allow for any substantial habitat or temporal segregation. Coexisting species are therefore predicted to have wellseparated trophic niches to avoid intense food competition. Although in a previous "snapshot" study using stomach content analysis (SCA), the trophic niches of three sympatric species (N. furzeri, N. orthonotus, and N. pienaari) were found to vary amongspecies, the difference was relatively weak and inconsistent across different sites. Here, we used the time-integrative capacity of stable isotope analysis to test whether the trophic niches of sympatric Mozambican Nothobranchius are more distinct overa long-term period. Analysis of carbon and nitrogen stable isotopes separated the trophic niche and trophic position of N. pienaari but failed to find any difference between N. furzeri/N. kadleci and N. orthonotus. No segregation was foun

Název v anglickém jazyce

Trophic niche partitioning in communities of African annual fish: evidence from stable isotopes

Popis výsledku anglicky

Annual killifish of the genus Nothobranchius often co-occur in temporary savannah pools. Their space- and time-limited environment does not allow for any substantial habitat or temporal segregation. Coexisting species are therefore predicted to have wellseparated trophic niches to avoid intense food competition. Although in a previous "snapshot" study using stomach content analysis (SCA), the trophic niches of three sympatric species (N. furzeri, N. orthonotus, and N. pienaari) were found to vary amongspecies, the difference was relatively weak and inconsistent across different sites. Here, we used the time-integrative capacity of stable isotope analysis to test whether the trophic niches of sympatric Mozambican Nothobranchius are more distinct overa long-term period. Analysis of carbon and nitrogen stable isotopes separated the trophic niche and trophic position of N. pienaari but failed to find any difference between N. furzeri/N. kadleci and N. orthonotus. No segregation was foun

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/GPP505%2F11%2FP646" target="_blank" >GPP505/11/P646: Adaptivní koexistence rozdílných životních strategií u ryb rodu Nothobranchius</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Hydrobiologia

ISSN

0018-8158

e-ISSN

—

Svazek periodika

721

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

99-106

Kód UT WoS článku

000327129300010

EID výsledku v databázi Scopus

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