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Ontogeny of feeding performance and biomechanics in coyotes

dc.contributor.authorLa Croix, Suzanneen_US
dc.contributor.authorZelditch, Miriam Leahen_US
dc.contributor.authorShivik, John A.en_US
dc.contributor.authorLundrigan, Barbara L.en_US
dc.contributor.authorHolekamp, Kay E.en_US
dc.date.accessioned2011-12-05T18:33:13Z
dc.date.available2013-02-01T20:26:17Zen_US
dc.date.issued2011-12en_US
dc.identifier.citationLa Croix, S.; Zelditch, M. L.; Shivik, J. A.; Lundrigan, B. L.; Holekamp, K. E. (2011). "Ontogeny of feeding performance and biomechanics in coyotes." Journal of Zoology 285(4). <http://hdl.handle.net/2027.42/88048>en_US
dc.identifier.issn0952-8369en_US
dc.identifier.issn1469-7998en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/88048
dc.description.abstractDeveloping organisms must reconcile conflicts between demands of survival within the current life‐history stage, with those of maturation, while negotiating the transitions through succeeding stages. In the case of feeding performance, the parts of the feeding apparatus and their biomechanics must maintain functional integrity to meet the feeding needs of a juvenile even as they develop toward their adult form. We concurrently examine the ontogenetic relationships of feeding performance, dentition and feeding biomechanics, relative to key life‐history events, utilizing samples drawn from the same population of known‐age coyotes Canis latrans . The development of feeding performance is asynchronous with development of both feeding biomechanics and skull morphology; feeding performance lags during ontogeny despite surprisingly large early mechanical advantage of the temporalis, due in part, to early relative maturity of mandibular shape. Feeding performance and biomechanics, like skull morphology, mature well after weaning at 6 weeks of age. Late maturation of bite strength and feeding performance is mediated by ongoing and continued growth of the temporalis muscles as measured by maximum zygomatic arch breadth (ZAB). Males and females may resolve developmental conflicts differently, as females trade earlier maturity for smaller maximum ZAB, decreased relative bite strength and diminished feeding performance, compared with males. The asynchrony of feeding performance development seen in coyotes, is also characteristic of a highly specialized carnivore, the spotted hyena, but coyotes have a much less protracted development, being handicapped relative to adults for a much shorter time. This developmental asynchrony between feeding performance and morphology suggests that a certain minimum threshold of physical growth and development, together with the associated development of biomechanics, are required to produce effective mastication. The relationships among biomechanics, life‐history schedules and ontogeny of feeding performance have obvious implications for fitness.en_US
dc.publisherBlackwell Publishing Ltden_US
dc.publisherWiley Periodicals, Inc.en_US
dc.subject.otherOntogenyen_US
dc.subject.otherFeeding Performanceen_US
dc.subject.otherBite Strengthen_US
dc.subject.otherDentitionen_US
dc.subject.otherSkull Morphologyen_US
dc.subject.otherCarnivoreen_US
dc.subject.otherGeometric Morphometricsen_US
dc.subject.otherLife Historyen_US
dc.titleOntogeny of feeding performance and biomechanics in coyotesen_US
dc.typeArticleen_US
dc.rights.robotsIndexNoFollowen_US
dc.subject.hlbsecondlevelNatural Resources and Environmenten_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationum Museum of Paleontology, University of Michigan, Ann Arbor, MI, USAen_US
dc.contributor.affiliationother Department of Zoology, Michigan State University, East Lansing, MI, USAen_US
dc.contributor.affiliationother USDA Wildlife Services National Wildlife Research Center and Utah State University, Logan, UT, USAen_US
dc.contributor.affiliationother Michigan State University Museum and Department of Zoology, Michigan State University, East Lansing, MI, USAen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/88048/1/jzo847.pdf
dc.identifier.doi10.1111/j.1469-7998.2011.00847.xen_US
dc.identifier.sourceJournal of Zoologyen_US
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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