Abstract：
:Behavioural variation among individuals has received a lot of attention by behavioural ecologists in the past few years. Its causes and consequences are becoming vast areas of research. The origin and maintenance of individual variation in behaviour within and among populations is affected by many facets of the biotic and abiotic environment. Here, two populations of lab-reared juvenile three-spined sticklebacks (Gasterosteus aculeatus) are tested for three behaviours (boldness, exploration, and sociability). Given the identical rearing conditions, the only difference between these populations is the parental habitat. In both populations, correlations between behaviour and body length are found. Interestingly, these differ between the populations. In one population body length was negatively correlated with exploratory behaviour, while in the other one body length correlated negatively with sociability. Considering the identical environment these juvenile fish were exposed to, these findings suggest a potential (epi)genetic foundation for these correlations and shows that, in three-spined sticklebacks, the proximate basis for correlations between body length and behaviour appears quite malleable.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
De Winter G,Martins HR,Trovo RA,Chapman BBdoi
10.1016/j.beproc.2015.11.012subject
Has Abstractpub_date
2016-01-01 00:00:00pages
75-9eissn
0376-6357issn
1872-8308pii
S0376-6357(15)30079-6journal_volume
122pub_type
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