Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)

We report new data on the intersexual and geographical variation in body mass of the Geoffroy's cat (Oncifelis geoffroyi d'Orbigny and Gervais 1844), a little known small cat from South America, and combine them with the existing information to compare alternative hypotheses for variation...

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Autores principales:	LUCHERINI,MAURO, MANFREDI,CLAUDIA, LUENGOS,ESTELA, DIAS MAZIM,FÁBIO, SOLER,LUCÍA, CASANAVE,EMMA B.
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2006
Materias:	carnivores felids Oncifelis geoffroyi South America body mass
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200003
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spelling	oai:scielo:S0716-078X20060002000032006-07-24Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)LUCHERINI,MAUROMANFREDI,CLAUDIALUENGOS,ESTELADIAS MAZIM,FÁBIOSOLER,LUCÍACASANAVE,EMMA B. carnivores felids Oncifelis geoffroyi South America body mass We report new data on the intersexual and geographical variation in body mass of the Geoffroy's cat (Oncifelis geoffroyi d'Orbigny and Gervais 1844), a little known small cat from South America, and combine them with the existing information to compare alternative hypotheses for variation in body mass. Most data on the body mass of O. geoffroyi have been obtained from previous research on this felid in four study areas of southern Brazil and central and southern Argentina. These data were added to those reported for other three additional locations. Our results set the body mass of O. geoffroyi to 4.26 ± 1.03 kg (mean ± SD, n = 56). We also show that males generally are heavier than females throughout most of this species' distributional range. Body mass dimorphism is 1.34 on average, but ranges from 1.19 and 1.21 in Uruguay and southern Chile, respectively, to 1.76 in the northern Pampas of Argentina. When data from the best sampled areas are considered (Torres del Paine, Lihué Calel, southern Pampas, Campos del Tuyú and southern Brazil), only male body mass varies with geographic location. More intriguingly, no correlation was found between body mass and latitude. Our results suggest a smaller mean weight of O. geoffroyi relative to what was previously published, but also suggest a wider variation. Our analysis do not support Bergmann's rule, according to which the largest individuals would occur in the southernmost regions of this cat's geographic distribution, while they seem supportive of a sexually-selected process affecting sexual size dimorphism in the Geoffroy's catinfo:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.79 n.2 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200003en10.4067/S0716-078X2006000200003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	carnivores felids Oncifelis geoffroyi South America body mass
spellingShingle	carnivores felids Oncifelis geoffroyi South America body mass LUCHERINI,MAURO MANFREDI,CLAUDIA LUENGOS,ESTELA DIAS MAZIM,FÁBIO SOLER,LUCÍA CASANAVE,EMMA B. Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
description	We report new data on the intersexual and geographical variation in body mass of the Geoffroy's cat (Oncifelis geoffroyi d'Orbigny and Gervais 1844), a little known small cat from South America, and combine them with the existing information to compare alternative hypotheses for variation in body mass. Most data on the body mass of O. geoffroyi have been obtained from previous research on this felid in four study areas of southern Brazil and central and southern Argentina. These data were added to those reported for other three additional locations. Our results set the body mass of O. geoffroyi to 4.26 ± 1.03 kg (mean ± SD, n = 56). We also show that males generally are heavier than females throughout most of this species' distributional range. Body mass dimorphism is 1.34 on average, but ranges from 1.19 and 1.21 in Uruguay and southern Chile, respectively, to 1.76 in the northern Pampas of Argentina. When data from the best sampled areas are considered (Torres del Paine, Lihué Calel, southern Pampas, Campos del Tuyú and southern Brazil), only male body mass varies with geographic location. More intriguingly, no correlation was found between body mass and latitude. Our results suggest a smaller mean weight of O. geoffroyi relative to what was previously published, but also suggest a wider variation. Our analysis do not support Bergmann's rule, according to which the largest individuals would occur in the southernmost regions of this cat's geographic distribution, while they seem supportive of a sexually-selected process affecting sexual size dimorphism in the Geoffroy's cat
author	LUCHERINI,MAURO MANFREDI,CLAUDIA LUENGOS,ESTELA DIAS MAZIM,FÁBIO SOLER,LUCÍA CASANAVE,EMMA B.
author_facet	LUCHERINI,MAURO MANFREDI,CLAUDIA LUENGOS,ESTELA DIAS MAZIM,FÁBIO SOLER,LUCÍA CASANAVE,EMMA B.
author_sort	LUCHERINI,MAURO
title	Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
title_short	Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
title_full	Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
title_fullStr	Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
title_full_unstemmed	Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)
title_sort	body mass variation in the geoffroy's cat (oncifelis geoffroyi)
publisher	Sociedad de Biología de Chile
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200003
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Body mass variation in the Geoffroy's cat (Oncifelis geoffroyi)

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