Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar

Age profile and body size were studied in three populations of the rare and understudied tomato frog, Dyscophus antongilii, from NE Madagascar. For each individual, a phalanx was clipped and the bone used for skeletochronology. Sexual dimorphism is significantly different between all three populatio...

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Main Authors: Giulia Tessa, Fabio M. Guarino, Cristina Giacoma, Fabio Mattioli, Franco Andreone
Format: Article
Language:English
Published: Firenze University Press 2007-11-01
Series:Acta Herpetologica
Online Access:https://oaj.fupress.net/index.php/ah/article/view/1528
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author Giulia Tessa
Fabio M. Guarino
Cristina Giacoma
Fabio Mattioli
Franco Andreone
author_facet Giulia Tessa
Fabio M. Guarino
Cristina Giacoma
Fabio Mattioli
Franco Andreone
author_sort Giulia Tessa
collection DOAJ
description Age profile and body size were studied in three populations of the rare and understudied tomato frog, Dyscophus antongilii, from NE Madagascar. For each individual, a phalanx was clipped and the bone used for skeletochronology. Sexual dimorphism is significantly different between all three populations: females are larger and heavier than males, with males also being distinguishable by a more yellowish throat. Age structure analysis was possible on two populations (Antara, Lampirano). The age within the two populations ranged between 3 and 7 years (mean ± SD = 5.0 ± 0.2) for males, and 3 to 11 years (mean ± SD = 5.8 ± 0.3) for females. Longevity was positively correlated to body size and weight within both sexes and populations. Sexual maturity was reached between 2 and 3 years, with sexual maturity recorded for males signifi- cantly lower than for females.
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spelling doaj.art-59295807dcc2417ab690e82c653465652022-12-22T00:43:15ZengFirenze University PressActa Herpetologica1827-96351827-96432007-11-012210.13128/Acta_Herpetol-22182214Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern MadagascarGiulia TessaFabio M. GuarinoCristina GiacomaFabio MattioliFranco AndreoneAge profile and body size were studied in three populations of the rare and understudied tomato frog, Dyscophus antongilii, from NE Madagascar. For each individual, a phalanx was clipped and the bone used for skeletochronology. Sexual dimorphism is significantly different between all three populations: females are larger and heavier than males, with males also being distinguishable by a more yellowish throat. Age structure analysis was possible on two populations (Antara, Lampirano). The age within the two populations ranged between 3 and 7 years (mean ± SD = 5.0 ± 0.2) for males, and 3 to 11 years (mean ± SD = 5.8 ± 0.3) for females. Longevity was positively correlated to body size and weight within both sexes and populations. Sexual maturity was reached between 2 and 3 years, with sexual maturity recorded for males signifi- cantly lower than for females.https://oaj.fupress.net/index.php/ah/article/view/1528
spellingShingle Giulia Tessa
Fabio M. Guarino
Cristina Giacoma
Fabio Mattioli
Franco Andreone
Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar
Acta Herpetologica
title Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar
title_full Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar
title_fullStr Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar
title_full_unstemmed Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar
title_short Longevity and body size in three populations of <em>Dyscophus antongilii</em> (Microhylidae, Dyscophinae), the tomato frog from north-eastern Madagascar
title_sort longevity and body size in three populations of em dyscophus antongilii em microhylidae dyscophinae the tomato frog from north eastern madagascar
url https://oaj.fupress.net/index.php/ah/article/view/1528
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