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What temperature can tolerate the marsh frog from thermal habitats? Preliminary results concerning the 1 Mai Spa’s population (NW Romania)

Author(s): Istvan SAS | Eva-Hajnalka KOVACS

Journal: Analele Universitatii din Oradea, Fascicula Biologie
ISSN 1224-5119

Volume: TOM XVI;
Issue: 1;
Start page: 117;
Date: 2009;
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Keywords: Pelophylax ridibundus | non-hibernating | thermal waters | thermoresistance | Romania

The aim of this study was the experimental determination of the maximum limit of temperature in which marsh frogs (P. ridibundus) from thermal water habitats can still survive. For the experiment ten marsh frogs captured from the nonhibernating population from 1 Mai Spa were used. During the experiment we had determined for each frog the value of two parameters: VTMax and CTMax. Following the experiment we did not identify significant differences regarding the thermoresistance of the studied frogs. Thus VTMax had a mean value of 33.9°C and CTMax had the mean value of 36.7°C.
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