Quantifying individual variation in behaviour: mixed-effect modelling approaches
TLDR
An overview of how mixed-effect models can be used to partition variation in, and correlations among, phenotypic attributes into between- and within-individual variance components is provided.Abstract:
Growing interest in proximate and ultimate causes and consequences of between- and within-individual variation in labile components of the phenotype - such as behaviour or physiology - characterizes current research in evolutionary ecology. The study of individual variation requires tools for quantification and decomposition of phenotypic variation into between- and within-individual components. This is essential as variance components differ in their ecological and evolutionary implications. We provide an overview of how mixed-effect models can be used to partition variation in, and correlations among, phenotypic attributes into between- and within-individual variance components. Optimal sampling schemes to accurately estimate (with sufficient power) a wide range of repeatabilities and key (co)variance components, such as between- and within-individual correlations, are detailed. Mixed-effect models enable the usage of unambiguous terminology for patterns of biological variation that currently lack a formal statistical definition (e.g. 'animal personality' or 'behavioural syndromes'), and facilitate cross-fertilisation between disciplines such as behavioural ecology, ecological physiology and quantitative genetics.read more
Citations
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Native tube-building polychaete prefers to anchor non-native alga over other macrophytes
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Male social niche conformance? Effects of manipulated opportunity for extra-pair mating on behavior and hormones of male zebra finches
Navina Lilie,Sepand Riyahi,Arne Kalinowski,S. Salazar,Sylvia Kaiser,Timothy J. Scholl,Peter J. Korsten +6 more
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Context-dependent individual variation in foraging behaviour and parental care in house sparrows
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Coping with stress: personality, life history and social dominance in swordtail fishes, Xiphophorus sp.
TL;DR: In this article, the authors present a table of acknowledgements and acknowledgements of the authors of this paper. Table of Table 1.4.1.4]...
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Variation in neophobia among cliff swallows at different colonies.
TL;DR: Differences among individuals in latency to enter the nest and the number of attacks were not significantly related to reproductive success or to the extent to which birds fed their nestlings, however, extent of nestling feeding was significantly predicted by theNumber of mist net captures.
References
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