Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)

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Sexual dimorphism reveals a broad variation in morphological, physiological, and behavioral traits related to organismal life strategies. Anurans are particularly suitable for studying the origin, integration, and diversification of sexual dimorphism, owing to the high degree of variation observed i...

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Autores principales: Salguero, Jerónimo, Carezzano, Fernando, Goldberg, Javier
Formato: Articulo
Lenguaje:Inglés
Publicado: 2024
Materias:
Zoología
Sexual differences
Wrestler Frog
Digit length
Robust limbs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/167896
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-167896
record_format dspace
spelling I19-R120-10915-1678962024-07-10T20:02:59Z http://sedici.unlp.edu.ar/handle/10915/167896 Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae) Salguero, Jerónimo Carezzano, Fernando Goldberg, Javier 2024-06 2024-07-10T12:54:17Z en Zoología Sexual differences Wrestler Frog Digit length Robust limbs Sexual dimorphism reveals a broad variation in morphological, physiological, and behavioral traits related to organismal life strategies. Anurans are particularly suitable for studying the origin, integration, and diversification of sexual dimorphism, owing to the high degree of variation observed in size and secondary sexual characteristics, as well as the diversity of life histories and their complex biphasic cycle. In this study, a morphometric characterization of Leptodactylus luctator is conducted to investigate whether sexual dimorphism is present. A total of 18 variables were measured in the head, body, and limbs of males and females from a population located in wetlands near Ucacha town, Córdoba Province, Argentina. Leptodactylus luctator exhibited more robust limbs in males, but longer fingers in females. Furthermore, females showed a greater axilla-groin length, indicating differences in body shape between sexes in addition to size. Given that larger forelimbs in males have been associated, in the literature, with greater reproductive success, while finger length has been correlated with different levels of circulating sex hormones, the possible selection pressures related to the observed variation are discussed herein. Asociación Herpetológica Argentina Articulo Articulo http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) application/pdf 19-26
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Sexual differences
Wrestler Frog
Digit length
Robust limbs
spellingShingle Zoología
Sexual differences
Wrestler Frog
Digit length
Robust limbs
Salguero, Jerónimo
Carezzano, Fernando
Goldberg, Javier
Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)
topic_facet Zoología
Sexual differences
Wrestler Frog
Digit length
Robust limbs
description Sexual dimorphism reveals a broad variation in morphological, physiological, and behavioral traits related to organismal life strategies. Anurans are particularly suitable for studying the origin, integration, and diversification of sexual dimorphism, owing to the high degree of variation observed in size and secondary sexual characteristics, as well as the diversity of life histories and their complex biphasic cycle. In this study, a morphometric characterization of Leptodactylus luctator is conducted to investigate whether sexual dimorphism is present. A total of 18 variables were measured in the head, body, and limbs of males and females from a population located in wetlands near Ucacha town, Córdoba Province, Argentina. Leptodactylus luctator exhibited more robust limbs in males, but longer fingers in females. Furthermore, females showed a greater axilla-groin length, indicating differences in body shape between sexes in addition to size. Given that larger forelimbs in males have been associated, in the literature, with greater reproductive success, while finger length has been correlated with different levels of circulating sex hormones, the possible selection pressures related to the observed variation are discussed herein.
format Articulo
Articulo
author Salguero, Jerónimo
Carezzano, Fernando
Goldberg, Javier
author_facet Salguero, Jerónimo
Carezzano, Fernando
Goldberg, Javier
author_sort Salguero, Jerónimo
title Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)
title_short Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)
title_full Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)
title_fullStr Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)
title_full_unstemmed Sexual size dimorphism in selected traits of Leptodactylus luctator (Anura: Leptodactylidae)
title_sort sexual size dimorphism in selected traits of leptodactylus luctator (anura: leptodactylidae)
publishDate 2024
url http://sedici.unlp.edu.ar/handle/10915/167896
work_keys_str_mv AT salguerojeronimo sexualsizedimorphisminselectedtraitsofleptodactylusluctatoranuraleptodactylidae
AT carezzanofernando sexualsizedimorphisminselectedtraitsofleptodactylusluctatoranuraleptodactylidae
AT goldbergjavier sexualsizedimorphisminselectedtraitsofleptodactylusluctatoranuraleptodactylidae
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