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

J 2017

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

JANČA, Matouš and Lumír GVOŽDÍK

Basic information

Original name

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

Authors

JANČA, Matouš (203 Czech Republic, belonging to the institution) and Lumír GVOŽDÍK (203 Czech Republic, guarantor)

Edition

Scientific Reports, LONDON, NATURE PUBLISHING GROUP, 2017, 2045-2322

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Full Text

Impact factor

Impact factor: 4.122

RIV identification code

RIV/00216224:14310/17:00097322

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1038/s41598-017-05485-9

UT WoS

000405421400017

Keywords in English

INTERFERENCE COMPETITION; INTRASPECIFIC VARIATION; TERRESTRIAL SALAMANDER; ENERGY-METABOLISM; NATURAL-SELECTION; NEWTS; SIZE; CONSEQUENCES; AGGRESSION; PHYSIOLOGY

Abstract

V originále

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.

Citovat

JANČA, Matouš and Lumír GVOŽDÍK. Costly neighbours: Heterospecific competitive interactions increase metabolic rates in dominant species. Scientific Reports. LONDON: NATURE PUBLISHING GROUP, 2017, vol. 7, July, p. nestránkováno, 6 pp. ISSN 2045-2322. Available from: https://dx.doi.org/10.1038/s41598-017-05485-9.

@article{1387277,
   author = {Janča, Matouš and Gvoždík, Lumír},
   article_location = {LONDON},
   article_number = {July},
   doi = {http://dx.doi.org/10.1038/s41598-017-05485-9},
   keywords = {INTERFERENCE COMPETITION; INTRASPECIFIC VARIATION; TERRESTRIAL SALAMANDER; ENERGY-METABOLISM; NATURAL-SELECTION; NEWTS; SIZE; CONSEQUENCES; AGGRESSION; PHYSIOLOGY},
   language = {eng},
   issn = {2045-2322},
   journal = {Scientific Reports},
   title = {Costly neighbours: Heterospecific competitive interactions increase metabolic rates in dominant species},
   url = {https://www.nature.com/articles/s41598-017-05485-9},
   volume = {7},
   year = {2017}
}

TY  - JOUR
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AU  - Janča, Matouš - Gvoždík, Lumír
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TI  - Costly neighbours: Heterospecific competitive interactions increase metabolic rates in dominant species
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SP  - nestránkováno
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KW  - INTERFERENCE COMPETITION
KW  - INTRASPECIFIC VARIATION
KW  - TERRESTRIAL SALAMANDER
KW  - ENERGY-METABOLISM
KW  - NATURAL-SELECTION
KW  - NEWTS
KW  - SIZE
KW  - CONSEQUENCES
KW  - AGGRESSION
KW  - PHYSIOLOGY
UR  - https://www.nature.com/articles/s41598-017-05485-9
L2  - https://www.nature.com/articles/s41598-017-05485-9
N2  - 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.
ER  -

JANČA, Matouš and Lumír GVOŽDÍK. Costly neighbours: Heterospecific competitive interactions increase metabolic rates in dominant species. \textit{Scientific Reports}. LONDON: NATURE PUBLISHING GROUP, 2017, vol.~7, July, p.~nestránkováno, 6 pp. ISSN~2045-2322. Available from: https://dx.doi.org/10.1038/s41598-017-05485-9.

Detailed Information on Publication Record