Physical Condition of an Animal, Using as an Example the Common Eider, Somateria mollissima

Authors

  • Arnaud J. Cabanac Département de Biologie, Université du Québec à Rimouski, 300 allée des Ursulines, Rimouski, Québec G5L 3A1

DOI:

https://doi.org/10.22621/cfn.v117i2.701

Keywords:

Behaviour, ecology, physiology, management, fitness

Abstract

An index of the physical condition of an animal should describe its endogenous available energy. The welfare of the animal depends on its ability to spend its stored energy (lipid and protein) in order to survive the environmental and behavioural challenge at the particular time of its capture. I propose a new index to predict the survival chance of the subject. The new index of physical condition takes into account the available endogenous energy reserves and the known needs of the species at that particular time of year. I further illustrate this new method of estimating the physical condition by running a trial with Common Eiders, Somateria mollissima.

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