Reyna-HurtadoTeichroebBonnellEtAl2018

Référence

Reyna-Hurtado, R., Teichroeb, J.A., Bonnell, T.R., Hernández-Sarabia, R.U., Vickers, S.M., Serio-Silva, J.C., Sicotte, P. and Chapman, C.A. (2018) Primates adjust movement strategies due to changing food availability. Behavioral Ecology, 29(2):368-376. (Scopus )

Résumé

Animals are hypothesized to search their environments in predictable ways depending on the distribution of resources. Evenly distributed foods are thought to be best exploited with random Brownian movements; while foods that are patchy or unevenly distributed require non-Brownian strategies, such as Lévy walks. Thus, when food distribution changes due to seasonal variation, animals should show concomitant changes in their search strategies. We examined this issue in 6 monkey species from Africa and Mexico: 3 frugivores and 3 folivores. We hypothesized that the more patchily distributed fruit would result in frugivores showing more levy-like patterns of motion, while folivores, with their more homogenous food supply, would show Brownian patterns of motion. At least 3 and up to 5 of 6 species conformed to the overall movement pattern predicted by their primary dietary item. For folivorous black howler monkeys (Alouatta pigra), ursine colobus (Colobus vellerosus), and red colobus (Procolobus rufomitratus), Brownian movement was supported or could not be ruled-out. Two frugivores (spider monkeys, Ateles geoffroyi yucatanensis, and gray-cheeked mangabeys, Lophocebus albigena) showed Lévy walks, as predicted, but frugivorous vervet monkeys (Chlorocebus pygerythrus) showed a Brownian walk. Additionally, we test whether seasonal variation in the spatial availability of food support environmentally driven changes in movement patterns. Four of 5 species tested for seasonal variation showed adjustments in their search strategies between the rainy and dry seasons. This study provides support for the notion that food distribution determines search strategies and that animal movement patterns are flexible, mirroring changes in the environment. © The Author(s) 2017. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. All rights reserved.

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@ARTICLE { Reyna-HurtadoTeichroebBonnellEtAl2018,
    AUTHOR = { Reyna-Hurtado, R. and Teichroeb, J.A. and Bonnell, T.R. and Hernández-Sarabia, R.U. and Vickers, S.M. and Serio-Silva, J.C. and Sicotte, P. and Chapman, C.A. },
    TITLE = { Primates adjust movement strategies due to changing food availability },
    JOURNAL = { Behavioral Ecology },
    YEAR = { 2018 },
    VOLUME = { 29 },
    NUMBER = { 2 },
    PAGES = { 368-376 },
    NOTE = { cited By 0 },
    ABSTRACT = { Animals are hypothesized to search their environments in predictable ways depending on the distribution of resources. Evenly distributed foods are thought to be best exploited with random Brownian movements; while foods that are patchy or unevenly distributed require non-Brownian strategies, such as Lévy walks. Thus, when food distribution changes due to seasonal variation, animals should show concomitant changes in their search strategies. We examined this issue in 6 monkey species from Africa and Mexico: 3 frugivores and 3 folivores. We hypothesized that the more patchily distributed fruit would result in frugivores showing more levy-like patterns of motion, while folivores, with their more homogenous food supply, would show Brownian patterns of motion. At least 3 and up to 5 of 6 species conformed to the overall movement pattern predicted by their primary dietary item. For folivorous black howler monkeys (Alouatta pigra), ursine colobus (Colobus vellerosus), and red colobus (Procolobus rufomitratus), Brownian movement was supported or could not be ruled-out. Two frugivores (spider monkeys, Ateles geoffroyi yucatanensis, and gray-cheeked mangabeys, Lophocebus albigena) showed Lévy walks, as predicted, but frugivorous vervet monkeys (Chlorocebus pygerythrus) showed a Brownian walk. Additionally, we test whether seasonal variation in the spatial availability of food support environmentally driven changes in movement patterns. Four of 5 species tested for seasonal variation showed adjustments in their search strategies between the rainy and dry seasons. This study provides support for the notion that food distribution determines search strategies and that animal movement patterns are flexible, mirroring changes in the environment. © The Author(s) 2017. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. All rights reserved. },
    AFFILIATION = { El Colegio de la Frontera sur, ECOSUR, Avenida Rancho s/n, Lerma, Campeche, Mexico; Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Toronto, ON, Canada; Department of Psychology, University of Lethbridge, 4401 University Dr, Lethbridge, AB, Canada; Instituto de Neuroetología, Universidad Veracruzana, Industrial de Las Animas, Av. Dr. Luis Castelazo, Xalapa, Veracruz, Mexico; Department of Anthropology, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA, United States; Instituto de Ecología, INECOL, A.C.El Haya, Emiliano Zapata, Xalapa, Veracruz, Mexico; Department of Anthropology, University of Calgary, 2500 University Dr. NW, Calgary, AB, Canada; Department of Anthropology, McGill School of Environment, West, McGill University, 855 Sherbrooke St, Montreal, QC, Canada; Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, NY, United States; Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan },
    AUTHOR_KEYWORDS = { Alouatta pigra; Ateles geoffroyi yucatanensis; Brownian walk; Chlorocebus pygerythrus; Colobus vellerosus; log-normal walk; Lophocebus albigena; Lévy walk; Procolobus rufomitratus },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1093/beheco/arx176 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044199639&doi=10.1093%2fbeheco%2farx176&partnerID=40&md5=c2a7fd76b94929ecb0f61b47bd596037 },
}

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