Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape

Sexual dimorphism and allometry feature is the main categories of intraspecific variation found in the animal kingdom, and techniques such as Geometric Morphometrics are effective to investigate variations in shape. Considering that many vertebrates exhibit substantial allometry and sexual dimorphis...

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Autores principales:	Fonseca, Roberta A. M., Folly, Manuella, Carmo, Luiz Fernando, Martins, Angele
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2020
Materias:	Zoología Casque-headed frog Sexual dimorphism Allometric variation Intraspecific variation Ontogeny Perereca-de-capacete Dimorfismo sexual Variação alométrica Variação intraespecífica Ontogenia
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/95892
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-95892
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Zoología Casque-headed frog Sexual dimorphism Allometric variation Intraspecific variation Ontogeny Perereca-de-capacete Dimorfismo sexual Variação alométrica Variação intraespecífica Ontogenia
spellingShingle	Zoología Casque-headed frog Sexual dimorphism Allometric variation Intraspecific variation Ontogeny Perereca-de-capacete Dimorfismo sexual Variação alométrica Variação intraespecífica Ontogenia Fonseca, Roberta A. M. Folly, Manuella Carmo, Luiz Fernando Martins, Angele Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape
topic_facet	Zoología Casque-headed frog Sexual dimorphism Allometric variation Intraspecific variation Ontogeny Perereca-de-capacete Dimorfismo sexual Variação alométrica Variação intraespecífica Ontogenia
description	Sexual dimorphism and allometry feature is the main categories of intraspecific variation found in the animal kingdom, and techniques such as Geometric Morphometrics are effective to investigate variations in shape. Considering that many vertebrates exhibit substantial allometry and sexual dimorphism, we test the hypotheses that (1) Aparasphenodon brunoi displays ontogenetic and static allometry; and that (2) there is sexual dimorphism in head shape in this species. We analyzed 75 specimens of A. brunoi from Parque Nacional da Restinga de Jurubatiba and found significant ontogenetic and static allometries in head shape, as well as sexual dimorphism after size correction. Regarding sexual dimorphism, females tend to have larger heads, besides slightly anteriorly positioned nostrils, smaller eyes, larger canthal ridges, narrower and longer frontoparietal ridges, and larger and laterally shifted squamosal ridges. We discuss the relevance of head morphology variation in the species, as well as the presumed consequences on the species fitness.
format	Articulo Articulo
author	Fonseca, Roberta A. M. Folly, Manuella Carmo, Luiz Fernando Martins, Angele
author_facet	Fonseca, Roberta A. M. Folly, Manuella Carmo, Luiz Fernando Martins, Angele
author_sort	Fonseca, Roberta A. M.
title	Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape
title_short	Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape
title_full	Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape
title_fullStr	Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape
title_full_unstemmed	Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape
title_sort	growing towards disparity: geometric morphometrics reveals sexual and allometric differences in aparasphenodon brunoi (anura: hylidae: lophyohylinae) head shape
publishDate	2020
url	http://sedici.unlp.edu.ar/handle/10915/95892
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Growing towards disparity: geometric morphometrics reveals sexual and allometric differences in Aparasphenodon brunoi (Anura: Hylidae: Lophyohylinae) head shape

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