Comparison of dietary habits of house (Hemidactylus turcicus L.) and wall (Tarentola mauritanica L.) gecko in the island of Hvar during summer

Žeželj, Petra (2010) Comparison of dietary habits of house (Hemidactylus turcicus L.) and wall (Tarentola mauritanica L.) gecko in the island of Hvar during summer. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

The sympatric populations of the only two species of geckos in Croatia, house (Hemidactylus turcicus L.) and wall gecko (Tarentola mauritanica L.) can be found on the island of Hvar and considering their interactions in the aspect of dietary habits were unknown, I explored what they are and if there are any differences. Samples were gathered by extracting the stomach contents and main groups of prey were determined. Considering the size of prey, geckos eat all categories, which means that the larger (T. mauritanica) eats larger prey, but does not exclude smaller prey, and smaller H. turcicus is somewhat limited by it's size to smaller prey. Both species use active foraging. House geckos exibit canibalism. Both eat mostly nonpoisonous prey, venomous prey is eaten by every third gecko and there is no difference in prey hardness. By volume, the most important group during summer is Orthoptera, and by quantity Araneae. When comparing two species of geckos, significant differences are apparent within groups of Homoptera and Isopoda which points to a different distribution of spatial niches and avoidance of competition.

Item Type: Thesis (Diploma thesis)
Keywords: Hemidactylus turcicus, Tarentola mauritanica, active foraging, Orthoptera, Homoptera, competition
Supervisor: Tadić, Zoran
Date: 2010
Number of Pages: 41
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 03 Sep 2014 11:05
Last Modified: 18 Sep 2014 08:33
URI: http://digre.pmf.unizg.hr/id/eprint/2609

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