The search behavior of terrestrial mammals
Author:
Noonan Michael J.ORCID, Martinez-Garcia Ricardo, Fleming Christen H., De Figueiredo Benjamin Garcia, Ali Abdullahi H., Attias Nina, Belant Jerrold L., Beyer Dean E., Berteaux Dominique, Bidner Laura R., Boone Randall, Boutin Stan, Brito Jorge, Brown Michael, Carter Andrew, Castellanos Armando, Castellanos Francisco X.ORCID, Chitwood Colter, Darlington Siobhan, de la Torre J. Antonio, Dekker Jasja, DePerno Chris, Droghini AmandaORCID, Farhadinia Mohammad, Fennessy Julian, Fichtel Claudia, Ford Adam, Gill Ryan, Goheen Jacob R., Oliveira-Santos Luiz Gustavo R., Hebblewhite Mark, Hodges Karen E., Isbell Lynne A., Janssen René, Kappeler Peter, Kays Roland, Kaczensky Petra, Kauffman Matthew, LaPoint Scott, Lashley Marcus Alan, Leimgruber Peter, Little Andrew, Macdonald David W., Masiaine Symon, McBride Roy T, Medici E. Patricia, Mertes Katherine, Moorman Chris, Morato Ronaldo G., Mourão Guilherme, Mueller Thomas, Neilson Eric W., Pastorini Jennifer, Patterson Bruce D., Pereira Javier, Petroelje Tyler R., Piecora Katie, Power R. John, Rachlow Janet, Ranglack Dustin H., Roshier David, Safford Kirk, Scott Dawn M, Serrouya Robert, Songer Melissa, Songsasen Nucharin, Stabach Jared, Stacy-Dawes Jenna, Swingen Morgan B., Thompson Jeffrey, Tucker Marlee A., Velilla Marianella, Yarnell Richard W., Young Julie, Fagan William F., Calabrese Justin M.ORCID
Abstract
SummaryAnimals moving through landscapes need to strike a balance between finding sufficient resources to grow and reproduce while minimizing encounters with predators1,2. Because encounter rates are determined by the average distance over which directed motion persists1,3–5, this trade-off should be apparent in individuals’ movement. Using GPS data from 1,396 individuals across 62 species of terrestrial mammals, we show how predators maintained directed motion ~7 times longer than for similarly-sized prey, revealing how prey species must trade off search efficiency against predator encounter rates. Individual search strategies were also modulated by resource abundance, with prey species forced to risk higher predator encounter rates when resources were scarce. These findings highlight the interplay between encounter rates and resource availability in shaping broad patterns mammalian movement strategies.
Publisher
Cold Spring Harbor Laboratory
Cited by
3 articles.
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