Costly neighbours: Heterospecific competitive interactions increase metabolic rates in dominant species

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F17%3A00476142" target="_blank" >RIV/68081766:_____/17:00476142 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/17:00097322

Result on the web

<a href="http://dx.doi.org/10.1038/s41598-017-05485-9" target="_blank" >http://dx.doi.org/10.1038/s41598-017-05485-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-017-05485-9" target="_blank" >10.1038/s41598-017-05485-9</a>

Result language

angličtina

Original language name

Costly neighbours: Heterospecific competitive interactions increase metabolic rates in dominant species

Original language description

The energy costs of self-maintenance (standard metabolic rate, SMR) vary substantially among individuals within a population. Despite the importance of SMR for understanding life history strategies, ecological sources of SMR variation remain only partially understood. Stress-mediated increases in SMR are common in subordinate individuals within a population, while the direction and magnitude of the SMR shift induced by interspecific competitive interactions is largely unknown. Using laboratory experiments, we examined the influence of con- and heterospecific pairing on SMR, spontaneous activity, and somatic growth rates in the sympatrically living juvenile newts Ichthyosaura alpestris and Lissotriton vulgaris. The experimental pairing had little influence on SMR and growth rates in the smaller species, L. vulgaris. Individuals exposed to con- and heterospecific interactions were more active than individually reared newts. In the larger species, I. alpestris, heterospecific interactions induced SMR to increase beyond values of individually reared counterparts. Individuals from heterospecific pairs and larger conspecifics grew faster than did newts in other groups. The plastic shift in SMR was independent of the variation in growth rate and activity level. These results reveal a new source of individual SMR variation and potential costs of co-occurrence in ecologically similar taxa.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

<a href="/en/project/GA15-07140S" target="_blank" >GA15-07140S: Thermal niche: the evaluation of current concept in ectothermic vertebrates</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

5177

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

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UT code for WoS article

000405421400017

EID of the result in the Scopus database

2-s2.0-85023779287