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Morphological parameters were measured on a population of the Mediterranean pond turtle, Mauremys leprosa, (Schweigger, 1812) in Majen Belahriti pond in the region of Guelma (North-east of Algeria). Females exhibited a longer carapace length (CL) at 177 ± 23.85 mm, surpassing that of males (151.45 ± 31.12 mm), and they also displayed a higher body weight (BW) at 756.52 ± 243.91 g, which was notably greater than that of males (453.09 ± 224.42 g). Placobdella nabeulensis Ben Ahmed, Gajda, Utevsky, Kwist & Świątek, 2023 (Hirudinida, Glossiphoniidae) was identified as the only ectoparasite affecting M. leprosa, with an average body length and width of 11 ± 5.83 mm and 5.1 ± 2.89 mm respectively. The intensity, represented by the average number of leeches per turtle, was calculated to be 2.21 ± 1.31 for this specific population and a prevalence rate of 21.17 %. The tail region showed the highest parasite load, indicating its increased susceptibility compared to other body parts. [ABSTRACT FROM AUTHOR]

Spur-thighed tortoise is a vulnerable species, the local declines of populations require an imperative need for conservation. Research on habitat use is essential for understanding population ecology. To investigate the home range and movement patterns we studied a population which occupies an enclosed area of 30 ha in northeastern Algeria. Studies of movement showed that home ranges were substantially smaller than in Spain. This difference was due to the high trophic availability with signifi cant richness in plants which make part of the diet of the tortoise. The home range varied from 0.287 ha in males to 0.354 ha for females; there was no sexual difference. The males are the most active with a distance of 3.79 m/d. Females and juveniles are respectively about 2.25 m/d and 2.11 m/d. The distance moved each day do not vary signifi cantly by sex and ages. Results from this study are important for establishing conservation strategies for this vulnerable species. [ABSTRACT FROM AUTHOR]