Project

Management and conservation of lagoon wetlands: the case study of the European pond turtle (πΈπ‘šπ‘¦π‘  π‘œπ‘Ÿπ‘π‘–π‘π‘’π‘™π‘Žπ‘Ÿπ‘–π‘ ) in a protected area of the South Venice Lagoon

Goal: The purpose of this project is to assess the conservation status and management implications concerning the European pond turtle population (πΈπ‘šπ‘¦π‘  π‘œπ‘Ÿπ‘π‘–π‘π‘’π‘™π‘Žπ‘Ÿπ‘–π‘ ) in the territorial framework of the WWF Valle Averto oasis (South Lagoon of Venice). The central analysis focuses on the use of the habitat and the reproductive eco-ethology in Veneto populations.

Date: 17 September 2018 - 30 September 2021

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Project log

Mirko Liuzzo
added a research item
A freshwater turtle monitoring programme along the inland margins of the Venice lagoon was initiated in 2019 in collaboration with the World Wild Fund for Nature (WWF-Italy). From a total of 336 European pond turtles (Emys orbicularis) captured and marked, 97 freshwater turtles were recaptured at least once (28.9% return rate) providing important information on population size, structure and movements of mature individuals within the study area. The population size was estimated with capture-recapture method (Capture-Mark-Recapture-CMR) at 1009.4 Β± 365.2 pond turtles, with a mean density of 252.3 Β± 91.3 ind./ha. The analysis of the movements showed that the average distance covered intra-water bodies was: 146.79 Β± 117.08 m for females and 125.43 Β± 112.34 m for males. A total of 17 E. orbicularis (eight females and nine males) out of 97 turtles changed the water body during the study period from April to early September. Only a female freshΒ­ water turtle migrated in all three study sites, being recaptured 1502.32 m from the tagging site. The percentage of captures was significantly higher in two canals than in the brackish lake habitat. Further research should address spatial distribution at a finer scale to evaluate the preferential habitat for threatened E. orbicularis populaΒ­tions in a transitional water system as the lagoon.
Mirko Liuzzo
added a project goal
The purpose of this project is to assess the conservation status and management implications concerning the European pond turtle population (πΈπ‘šπ‘¦π‘  π‘œπ‘Ÿπ‘π‘–π‘π‘’π‘™π‘Žπ‘Ÿπ‘–π‘ ) in the territorial framework of the WWF Valle Averto oasis (South Lagoon of Venice). The central analysis focuses on the use of the habitat and the reproductive eco-ethology in Veneto populations.
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