Cerrar

No. de sistema: 000051216

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 120424m20129999maubr^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| ncho---
044 _ _ a| mau
245 0 0 a| Divergence in morphology, but not habitat use, despite low genetic differentiation among insular populations of the lizard Anolis lemurinus in Honduras
520 1 _ a| Studies of recently isolated populations are useful because observed differences can often be attributed to current environmental variation. Two populations of the lizard Anolis lemurinus have been isolated on the islands of Cayo Menor and Cayo Mayor in the Cayos Cochinos Archipelago of Honduras for less than 15 000 y. We measured 12 morphometric and 10 habitat-use variables on 220 lizards across these islands in 2 y, 2008 and 2009. The goals of our study were (1) to explore patterns of sexual dimorphism, and (2) to test the hypothesis that differences in environment among islandsmay have driven divergence in morphology and habitat use despite genetic homogeneity among populations. Although we found no differences among sexes in habitat use, males had narrower pelvic girdles and longer toe pads on both islands. Between islands, males differed in morphology, but neither males nor females differed in habitat use. Our data suggest that either recent selection has operated differentially on males despite low genetic differentiation, or that they display phenotypic plasticity in response to environmental variation.We suggest that patternsmay be driven by variation in intrapopulation density or differences in predator diversity among islands.
650 _ 4 a| Anolis lemurinus
650 _ 4 a| Lagartijas
650 _ 4 a| Población animal
650 _ 4 a| Variables ambientales
650 _ 4 a| Hábitat (Ecología)
651 _ 4 a| Cayos Cochinos (Honduras)
700 1 _ a| Logan, Michael L.
700 1 _ a| Montgomery, Chad E.
e| coaut.
700 1 _ a| Boback, Scott M.
e| coaut.
700 1 _ a| Reed, Robert N.
e| coaut.
700 1 _ a| Campbell, Jonathan A.
e| coaut.
773 0 _
t| Journal of Tropical Ecology
g| Vol. 28, no. 2 (March 2012), p. 215-222
x| 0266-4674
900 _ _ a| En hemeroteca, SIBE-San Cristóbal
902 _ _ a| Nzp / MM
904 _ _ a| Abril 2012
905 _ _ a| Artfrosur
LNG eng
Cerrar
*En hemeroteca, SIBE-San Cristóbal
Divergence in morphology, but not habitat use, despite low genetic differentiation among insular populations of the lizard Anolis lemurinus in Honduras
Logan, Michael L. (autor)
Montgomery, Chad E. (autor)
Boback, Scott M. (autor)
Reed, Robert N. (autor)
Campbell, Jonathan A. (autor)
Contenido en: Journal of Tropical Ecology. Vol. 28, no. 2 (March 2012), p. 215-222. ISSN: 0266-4674
Bibliotecas:
San Cristóbal
No. de sistema: 51216
Tipo: Artículo
  • Consulta (1)




Inglés

"Studies of recently isolated populations are useful because observed differences can often be attributed to current environmental variation. Two populations of the lizard Anolis lemurinus have been isolated on the islands of Cayo Menor and Cayo Mayor in the Cayos Cochinos Archipelago of Honduras for less than 15 000 y. We measured 12 morphometric and 10 habitat-use variables on 220 lizards across these islands in 2 y, 2008 and 2009. The goals of our study were (1) to explore patterns of sexual dimorphism, and (2) to test the hypothesis that differences in environment among islandsmay have driven divergence in morphology and habitat use despite genetic homogeneity among populations. Although we found no differences among sexes in habitat use, males had narrower pelvic girdles and longer toe pads on both islands. Between islands, males differed in morphology, but neither males nor females differed in habitat use. Our data suggest that either recent selection has operated differentially on males despite low genetic differentiation, or that they display phenotypic plasticity in response to environmental variation.We suggest that patternsmay be driven by variation in intrapopulation density or differences in predator diversity among islands."

SIBE San Cristóbal
Codigo de barra
Estado
Colección
51260-10
(Disponible)
Artículos de la frontera sur