Quantifying the intersexual and interspecific morphometric variation in two resembling sympatric lacertids : Iberolacerta horvathi and Podarcis muralis
ID Žagar, Anamarija (Author), ID Osojnik, Nadja (Author), ID Carretero, Miguel A. (Author), ID Vrezec, Al (Author)

URLURL - Presentation file, Visit http://www.fupress.net/index.php/ah/article/view/9602/10665 This link opens in a new window

Podarcis muralis and Iberolacerta horvathi are sympatric, frequently syntopic,lacertids through the entire range of I. horvathi and very similar intheir general body size and shape, as well as in most ecological traits. We morphologically compared adults from the area of sympatry using biometric measurements and performed analyses to investigate their sexual size and shapedimorphism. A total of 34 males and 24 females of I. horvathi, and 25 males and 23 females of P. muralis, all adult individuals, were measured. Bothspecies showed sexual size dimorphism with females being longer (snout-vent length, SVL) than males. After SVL correction (ANCOVA), head width, length and height and mass showed to be sexually dimorphic in both species. Males carry relatively wider, longer and higher heads and were heavier than conspecific females. I. horvathi heads were more flattened than those of P. muralis and P. muralis were heavier than I. horvathi. Both speciesdisplayed the same pattern of sexual dimorphism regarding body size, head size and shape not only in direction but also in magnitude. All results confirm that both species are very similar in studied biometric characters and, together with their ecological similarities, these suggest in absence of other factors they are likely to interact when living together.

Keywords:biometric characters, sexual dimorphism, southern Slovenia, Podarcis muralis, Iberolacerta horvathi, Lacertidae
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Number of pages:Str. 29-39
Numbering:Vol. 7, no. 1
PID:20.500.12556/RUL-37613 This link opens in a new window
ISSN on article:1827-9635
COBISS.SI-ID:2599503 This link opens in a new window
Publication date in RUL:10.07.2015
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Title:Acta herpetologica
Shortened title:Acta herpetol.
Publisher:Firenze University Press
COBISS.SI-ID:517495065 This link opens in a new window

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