Neonatal antipredator tactics shape female movement patterns in large herbivores

IF 13.9 1区 生物学 Q1 ECOLOGY
Kamal Atmeh, Christophe Bonenfant, Jean-Michel Gaillard, Mathieu Garel, A. J. Mark Hewison, Pascal Marchand, Nicolas Morellet, Pia Anderwald, Bayarbaatar Buuveibaatar, Jeffrey L. Beck, Matthew S. Becker, Floris M. van Beest, Jodi Berg, Ulrika A. Bergvall, Randall B. Boone, Mark S. Boyce, Simon Chamaillé-Jammes, Yannick Chaval, Chimeddorj Buyanaa, David Christianson, Simone Ciuti, Steeve D. Côté, Duane R. Diefenbach, Egil Droge, Johan T. du Toit, Samantha Dwinnell, Julian Fennessy, Flurin Filli, Daniel Fortin, Emma E. Hart, Matthew Hayes, Mark Hebblewhite, Morten Heim, Ivar Herfindal, Marco Heurich, Christian von Hoermann, Katey Huggler, Craig Jackson, Andrew F. Jakes, Paul F. Jones, Petra Kaczensky, Matthew Kauffman, Petter Kjellander, Tayler LaSharr, Leif Egil Loe, Roel May, Philip McLoughlin, Erling L. Meisingset, Evelyn Merrill, Kevin L. Monteith, Thomas Mueller, Atle Mysterud, Dejid Nandintsetseg, Kirk Olson, John Payne, Scott Pearson, Åshild Ønvik Pedersen, Dustin Ranglack, Adele K. Reinking, Thomas Rempfler, Clifford G. Rice, Eivin Røskaft, Bernt-Erik Sæther, Sonia Saïd, Hugo Santacreu, Niels Martin Schmidt, Daan Smit, Jared A. Stabach, Martin-Hugues St-Laurent, Joëlle Taillon, W. David Walter, Kevin White, Guillaume Péron, Anne Loison
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Abstract

Caring for newborn offspring hampers resource acquisition of mammalian females, curbing their ability to meet the high energy expenditure of early lactation. Newborns are particularly vulnerable, and, among the large herbivores, ungulates have evolved a continuum of neonatal antipredator tactics, ranging from immobile hider (such as roe deer fawns or impala calves) to highly mobile follower offspring (such as reindeer calves or chamois kids). How these tactics constrain female movements around parturition is unknown, particularly within the current context of increasing habitat fragmentation and earlier plant phenology caused by global warming. Here, using a comparative analysis across 54 populations of 23 species of large herbivores from 5 ungulate families (Bovidae, Cervidae, Equidae, Antilocapridae and Giraffidae), we show that mothers adjust their movements to variation in resource productivity and heterogeneity according to their offspring’s neonatal tactic. Mothers with hider offspring are unable to exploit environments where the variability of resources occurs at a broad scale, which might alter resource allocation compared with mothers with follower offspring. Our findings reveal that the overlooked neonatal tactic plays a key role for predicting how species are coping with environmental variation.

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来源期刊
Nature ecology & evolution
Nature ecology & evolution Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
22.20
自引率
2.40%
发文量
282
期刊介绍: Nature Ecology & Evolution is interested in the full spectrum of ecological and evolutionary biology, encompassing approaches at the molecular, organismal, population, community and ecosystem levels, as well as relevant parts of the social sciences. Nature Ecology & Evolution provides a place where all researchers and policymakers interested in all aspects of life's diversity can come together to learn about the most accomplished and significant advances in the field and to discuss topical issues. An online-only monthly journal, our broad scope ensures that the research published reaches the widest possible audience of scientists.
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