Laboratory captivity can affect scores of metabolic rates and activity in wild brown trout
| Autor: | Johan Höjesjö, Libor Závorka, Joacim Näslund, Magnus Lovén Wallerius, Barbara Koeck, Jörgen I. Johnsson, Niklas Wengström, Jeroen Brijs, Rémy Lassus, Julien Cucherousset, David Aldvén |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Phenotypic plasticity 05 social sciences Captivity Zoology Phenotypic trait Biology Affect (psychology) biology.organism_classification 010603 evolutionary biology 01 natural sciences Acclimatization Familiar environment Brown trout 0501 psychology and cognitive sciences Animal Science and Zoology 050102 behavioral science & comparative psychology Salmo Ecology Evolution Behavior and Systematics |
| ISSN: | 0952-8369 |
| Popis: | Phenotypic scoring of wild animals under standardized laboratory conditions is important as it allows field ecologists and evolutionary biologists to understand the development and maintenance of interindividual differences in plastic traits (e.g. behaviour and physiology). However, captivity is associated with a shift from a natural familiar environment to an unfamiliar and artificial environment, which may affect estimates of plastic phenotypic traits. In this study, we tested how previous experience with laboratory environments and time spent in captivity affects behavioural (i.e. activity) and metabolic (i.e. standard and maximum metabolic rates) scoring of our model species, wild brown trout Salmo trutta. We found that individuals with previous experience of laboratory captivity (10.5 months earlier) showed higher activity in an open field test than individuals with no prior experience of laboratory captivity. Previous experience with captivity had no significant effect on metabolic rates. However, metabolic rates seemed to increase with increasing time spent in captivity prior to the collection of measurements. Although there are benefits of keeping wild animals in captivity prior to scoring, our results suggest that while allowing for sufficient acclimatization researchers should aim at minimizing time in captivity of wild animals to increase accuracy and ecological relevance of the scoring of plastic phenotypic traits. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text