TremblayCreteHuot1998

Référence

Tremblay, J.-P., Crete, M. and Huot, J. (1998) Summer foraging behaviour of eastern coyotes in rural versus forest landscape: a possible mechanism of source-sink dynamics. Ecoscience, 5(2):172-182. (Scopus )

Résumé

Following wolf (Canis lupus) extinction and opening of the forest landscape, coyotes (Canis latrans) progressively colonized eastern North America. In southeastern Quebec, coyotes occur in two contiguous landscape types: rural and forest. We tested the hypothesis that forest landscapes were marginal habitats for coyotes in summer, as opposed to rural landscapes. Ten coyotes were radio-tracked during the 1995 snow-free period (rural: n = 4, forest: n = 6) and mophological measurements were obtained for 25 additional ones were handled (rural: n = 9, forest: n = 16). Analysis of undigested residues in scats (n = 562) showed that during the den attendance period (1 May to 15 July), coyotes in both landscapes mostly consumed animal flesh. However, during pup initiation (15 July to 1 October), forest coyotes consumed more wildberries than rural coyotes. During den attendance, rural coyotes had higher activity and movement rates that forest coyotes. We observed the opposite trend in late summer; forest coyotes were more active than rural animals and traveled at a higher rate. Finally, rural coyotes were heavier than their forest counterparts in late summer. Our results support the hypothesis that forest landscapes of southeastern Quebec are sub-optimal habitats for coyotes. Difference in foraging behaviour and performance between the two habitats may affect survival and/or fecundity, thus creating a scource/sink population dynamics.

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@ARTICLE { TremblayCreteHuot1998,
    AUTHOR = { Tremblay, J.-P. and Crete, M. and Huot, J. },
    TITLE = { Summer foraging behaviour of eastern coyotes in rural versus forest landscape: a possible mechanism of source-sink dynamics },
    JOURNAL = { Ecoscience },
    YEAR = { 1998 },
    VOLUME = { 5 },
    PAGES = { 172-182 },
    NUMBER = { 2 },
    NOTE = { cited By 27 },
    ABSTRACT = { Following wolf (Canis lupus) extinction and opening of the forest landscape, coyotes (Canis latrans) progressively colonized eastern North America. In southeastern Quebec, coyotes occur in two contiguous landscape types: rural and forest. We tested the hypothesis that forest landscapes were marginal habitats for coyotes in summer, as opposed to rural landscapes. Ten coyotes were radio-tracked during the 1995 snow-free period (rural: n = 4, forest: n = 6) and mophological measurements were obtained for 25 additional ones were handled (rural: n = 9, forest: n = 16). Analysis of undigested residues in scats (n = 562) showed that during the den attendance period (1 May to 15 July), coyotes in both landscapes mostly consumed animal flesh. However, during pup initiation (15 July to 1 October), forest coyotes consumed more wildberries than rural coyotes. During den attendance, rural coyotes had higher activity and movement rates that forest coyotes. We observed the opposite trend in late summer; forest coyotes were more active than rural animals and traveled at a higher rate. Finally, rural coyotes were heavier than their forest counterparts in late summer. Our results support the hypothesis that forest landscapes of southeastern Quebec are sub-optimal habitats for coyotes. Difference in foraging behaviour and performance between the two habitats may affect survival and/or fecundity, thus creating a scource/sink population dynamics. },
    DOCUMENT_TYPE = { Article },
    ISSN = { 11956860 },
    KEYWORDS = { carnivore; foraging behavior; habitat quality; population dynamics, Canada, Canis latrans; Canis lupus },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-0032431221&partnerID=40&md5=a57eb256b1f4df8010f442d8890992d8 },
}

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