Reproductive characteristics of the viviparous lizard (Zootoca vivipara Lichtenstein)

Baškiera, Senka (2013) Reproductive characteristics of the viviparous lizard (Zootoca vivipara Lichtenstein). Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Viviparous lizard, Zootoca vivipara Lichtenstein 1823 is wide-distributed reptile but data on it’s distribution in Croatia and Bosnia and Herzegovina is scanty. It is the only lacertid lizard with two modes of reproduction, oviparous and ovoviviparous. Two geographically distinct populations were studied. One from Vlašić (BIH; Zootoca vivipara vivipara Von Jacquin, 1787 subspecies) and other from Spačva (CRO; considered to be Zootoca vivipara pannonica Lac & Kluch, 1968). Gravid females were collected from sampling sites, to establish their reproductive mode. They were put into terraria until juveniles hatched. Data on female body mass change (before and after oviposition and parturition respectively), size and mass of both eggs and hatchlings were taken. Population from Vlašić was ovoviviparous while population from Spačva was oviparous. This research also proved heavier and bigger females to have larger clutch size and hatchlings with larger SVL size and bigger mass. Results obtained from t-test showed that that oviparous females have larger clutch size and hatchlings with bigger average SVL size and average body mass.

Item Type: Thesis (Diploma thesis)
Keywords: egg size, viviparity, reproductive mode, distribution, Lacertidae
Supervisor: Tadić, Zoran
Date: 2013
Number of Pages: 50
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 30 Sep 2014 09:04
Last Modified: 30 Sep 2014 09:04
URI: http://digre.pmf.unizg.hr/id/eprint/2872

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