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Skeletal correlates of body weight in the Black-billed Streamertail (Trochilus scitulus) of Jamaica

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dc.contributor.author Graves, Gary R. en
dc.date.accessioned 2011-06-20T20:25:45Z
dc.date.available 2011-06-20T20:25:45Z
dc.date.issued 2009
dc.identifier.citation Graves, Gary R. 2009. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F16721">Skeletal correlates of body weight in the Black-billed Streamertail (Trochilus scitulus) of Jamaica</a>." <em>Caribbean Journal of Science</em>. 45 (1):69&ndash;72. en
dc.identifier.issn 0008-6452
dc.identifier.uri http://hdl.handle.net/10088/16721
dc.description.abstract Analyses of body size evolution in hummingbirds (Trochilidae) are hampered by the lack of standardized weight data for most of the 330 described species. Moreover, little is known of the morphological correlates of body weight upon which a body-size index could be constructed. I investigated the skeletal correlates of body weight in the endemic Black-billed Streamertail (Trochilus scitulus) of Jamaica. Mist-netted males were weighed at initial capture and after the holding period (2.1-6.7 hr). Seven of 10 skeletal characters exhibited marginally higher correlations with the second measure of body weight, which was unbiased by gut contents. Sternum length emerged as the single best skeletal predictor of body weight. A multivariate index (PCA 1) derived from three sternal characters had approximately the same predictive value as a comparable analysis of all ten skeletal characters. This suggests that a simple multivariate measure of sternal morphology may provide a reliable body size index for hummingbirds. en
dc.relation.ispartof Caribbean Journal of Science en
dc.title Skeletal correlates of body weight in the Black-billed Streamertail (Trochilus scitulus) of Jamaica en
dc.type Journal Article en
dc.identifier.srbnumber 98243
rft.jtitle Caribbean Journal of Science
rft.volume 45
rft.issue 1
rft.spage 69
rft.epage 72
dc.description.SIUnit NMNH en
dc.description.SIUnit NH-Vertebrate Zoology en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 69
dc.citation.epage 72


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