Temporal and dietary niche is context-dependent in tropical ants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F20%3A00523514" target="_blank" >RIV/60077344:_____/20:00523514 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/een.12857" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/een.12857</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/een.12857" target="_blank" >10.1111/een.12857</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temporal and dietary niche is context-dependent in tropical ants

Popis výsledku v původním jazyce

1. Niche traits (those that describe a species' niche) are not constant within a species, and the importance of intraspecific variation is increasingly appreciated. However, little is known about the extent of niche variability across species. This study investigated variation in dietary and temporal niches of ant species in two tropical rainforests. n2. Ants were collected from baits reflecting seven different natural resources and from pitfalls at 128 grid points. Sampling was done separately for day and night. Co-occurrence analyses were used to estimate the monopolisation capacity of each species. n3. It was expected that species would show similar dietary and temporal preferences across sites. Therefore, species with high or low niche variability between grid points (within a site) should show similar tendencies when comparing sites. It was predicted that between sites, intraspecific variability should be lower than interspecific variability, and that numerically dominant species should have higher monopolisation rates and lower intraspecific niche variability than less common ones. n4. These results showed that niche traits such as temporal activity and realised food niche shifted drastically between conspecifics of different sites. Even the most common species showed different food or temporal preferences between sites. In general, species with the highest monopolisation rates displayed lower niche variability. n5. This study also demonstrates that niche characterisation via combined continuous rather than categorical values permits a quantification of a species' niche variability. Categorising niche traits without considering context dependency may be misleading if one tries to assess niche width and a species' ability to cope with environmental change.

Název v anglickém jazyce

Temporal and dietary niche is context-dependent in tropical ants

Popis výsledku anglicky

1. Niche traits (those that describe a species' niche) are not constant within a species, and the importance of intraspecific variation is increasingly appreciated. However, little is known about the extent of niche variability across species. This study investigated variation in dietary and temporal niches of ant species in two tropical rainforests. n2. Ants were collected from baits reflecting seven different natural resources and from pitfalls at 128 grid points. Sampling was done separately for day and night. Co-occurrence analyses were used to estimate the monopolisation capacity of each species. n3. It was expected that species would show similar dietary and temporal preferences across sites. Therefore, species with high or low niche variability between grid points (within a site) should show similar tendencies when comparing sites. It was predicted that between sites, intraspecific variability should be lower than interspecific variability, and that numerically dominant species should have higher monopolisation rates and lower intraspecific niche variability than less common ones. n4. These results showed that niche traits such as temporal activity and realised food niche shifted drastically between conspecifics of different sites. Even the most common species showed different food or temporal preferences between sites. In general, species with the highest monopolisation rates displayed lower niche variability. n5. This study also demonstrates that niche characterisation via combined continuous rather than categorical values permits a quantification of a species' niche variability. Categorising niche traits without considering context dependency may be misleading if one tries to assess niche width and a species' ability to cope with environmental change.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Ecological Entomology

ISSN

0307-6946

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

761-770

Kód UT WoS článku

000517608100001

EID výsledku v databázi Scopus

2-s2.0-85080977017