Context dependent fitness costs of reproduction despite stable body mass costs in an Arctic herbivore

Gabriel Pigeon, Steve Albon, Leif Egil Loe, Richard Bischof, Christophe Bonenfant, Mads Farchhammer, Justine Irvine, Erik Ropstad, Vebjorn Veiberg & Audun Stein
1. The cost of reproduction on demographic rates is often assumed to operate through changing body condition. Several studies have found that reproduction depresses body mass more if the current conditions are severe, such as high population densities or adverse weather, than under benign environmental conditions. However, few studies have investigated the association between the fitness and body mass costs of reproduction. 2. Using 25 years of individual-based capture-recapture data from Svalbard reindeer (Rangifer tarandus...
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