Is body shape of mangrove-dwelling monitor lizards (Varanus indicus; Varanidae) sexually dimorphic?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10100697" target="_blank" >RIV/00216208:11310/11:10100697 - isvavai.cz</a>

Výsledek na webu

<a href="http://booksandjournals.brillonline.com/content/10.1163/017353710x532184" target="_blank" >http://booksandjournals.brillonline.com/content/10.1163/017353710x532184</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1163/017353710X532184" target="_blank" >10.1163/017353710X532184</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Is body shape of mangrove-dwelling monitor lizards (Varanus indicus; Varanidae) sexually dimorphic?

Popis výsledku v původním jazyce

In monitor lizards, males are typically larger than females, but body shape is usually quite similar in both sexes. We asked whether subtle differences in body shape follow the same pattern as in other sexually dimorphic lizard taxa and thus can be explained by the same selective forces. We tested the hypotheses that (1) females have a longer abdomen due to fecundity selection and (2) males possess bigger heads due to intrasexual selection. We also hypothesised that (3) male monitors show a wider chestsand longer upper fore-limbs to win male-male wrestling matches. The results revealed that sexual differences in body shape were small and emerged after maturity. Females have a relatively longer abdomen while males wider chest and longer upper fore-limbs. Thus, the differences in body shape between male and female varanid lizards may be attributed to both fecundity and sexual selection.

Název v anglickém jazyce

Is body shape of mangrove-dwelling monitor lizards (Varanus indicus; Varanidae) sexually dimorphic?

Popis výsledku anglicky

In monitor lizards, males are typically larger than females, but body shape is usually quite similar in both sexes. We asked whether subtle differences in body shape follow the same pattern as in other sexually dimorphic lizard taxa and thus can be explained by the same selective forces. We tested the hypotheses that (1) females have a longer abdomen due to fecundity selection and (2) males possess bigger heads due to intrasexual selection. We also hypothesised that (3) male monitors show a wider chestsand longer upper fore-limbs to win male-male wrestling matches. The results revealed that sexual differences in body shape were small and emerged after maturity. Females have a relatively longer abdomen while males wider chest and longer upper fore-limbs. Thus, the differences in body shape between male and female varanid lizards may be attributed to both fecundity and sexual selection.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Amphibia - Reptilia

ISSN

0173-5373

e-ISSN

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Svazek periodika

32

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

27-37

Kód UT WoS článku

000285828800003

EID výsledku v databázi Scopus

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