Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy

Most animal groups have sexual dimorphism in morphological characters, especially body size. In many cases, sexual dimorphism may be a consequence of a hierarchical social organization within populations. However, polygyny or monogamy may evolve independently of sexual dimorphism. Two Liolaemus spec...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Vidal Maldonado,Marcela. A
Lenguaje:English
Publicado: Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2011
Materias:
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382011000200004
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:scielo:S0717-65382011000200004
record_format dspace
spelling oai:scielo:S0717-653820110002000042014-11-05Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamyVidal Maldonado,Marcela. A Geometric morphometrics Liolaemus copiapoensis Liolaemus tenuis social behavior Most animal groups have sexual dimorphism in morphological characters, especially body size. In many cases, sexual dimorphism may be a consequence of a hierarchical social organization within populations. However, polygyny or monogamy may evolve independently of sexual dimorphism. Two Liolaemus species are known to be good model species to study the relationship between sexual dimorphism and sexual social system: Liolaemus tenuis (polygyny) and Liolaemus copiapoensis (monogamy). In this study, I evaluate the morphological variation in the geometric shape of the orbit between sexes in the two species, comparing their social condition (polygyny, monogamy) and applying a geometric morphometrical methodology. The results show morphological differentiation in orbit shape, suggesting potentially adaptative characters associated with social condition. There are variety of possible causes which could explain these differences (e.g., multiple origins of the social system in Liolaemus), which could provide new perspectives; however, the generalized lack of knowledge of social systems in Liolaemus species imposes barriers to new studies on the subject.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana (Concepción) v.75 n.2 20112011-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382011000200004en10.4067/S0717-65382011000200004
institution Scielo Chile
collection Scielo Chile
language English
topic Geometric morphometrics
Liolaemus copiapoensis
Liolaemus tenuis
social behavior
spellingShingle Geometric morphometrics
Liolaemus copiapoensis
Liolaemus tenuis
social behavior
Vidal Maldonado,Marcela. A
Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy
description Most animal groups have sexual dimorphism in morphological characters, especially body size. In many cases, sexual dimorphism may be a consequence of a hierarchical social organization within populations. However, polygyny or monogamy may evolve independently of sexual dimorphism. Two Liolaemus species are known to be good model species to study the relationship between sexual dimorphism and sexual social system: Liolaemus tenuis (polygyny) and Liolaemus copiapoensis (monogamy). In this study, I evaluate the morphological variation in the geometric shape of the orbit between sexes in the two species, comparing their social condition (polygyny, monogamy) and applying a geometric morphometrical methodology. The results show morphological differentiation in orbit shape, suggesting potentially adaptative characters associated with social condition. There are variety of possible causes which could explain these differences (e.g., multiple origins of the social system in Liolaemus), which could provide new perspectives; however, the generalized lack of knowledge of social systems in Liolaemus species imposes barriers to new studies on the subject.
author Vidal Maldonado,Marcela. A
author_facet Vidal Maldonado,Marcela. A
author_sort Vidal Maldonado,Marcela. A
title Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy
title_short Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy
title_full Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy
title_fullStr Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy
title_full_unstemmed Eye orbit geometric shape in Liolaemus as an indicator of polygyny or monogamy
title_sort eye orbit geometric shape in liolaemus as an indicator of polygyny or monogamy
publisher Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate 2011
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382011000200004
work_keys_str_mv AT vidalmaldonadomarcelaa eyeorbitgeometricshapeinliolaemusasanindicatorofpolygynyormonogamy
_version_ 1718442146483142656