Aspectos reprodutivos de Artibeus lituratus (Phyllostomidae) em fragmentos florestais na região de Porto Rico, Paraná, Brasil

Henrique Ortêncio Filho, Nélio R. Reis, Danieli Pinto, Danieli C. Vieira

Abstract


In the Neotropical region most bat species show poliestry. There may be continuous sexual activity along the twelve months of the year or a long time of inactivity followed by a short reproductive phase along the year. Because of the lack of works involving bats in the northwest of the state of Paraná, Brazil, the present work aimed at analyzing the reproductive status of A. lituratus bats from the region of Porto Rico, Paraná, Brazil, in wet and dry seasons of the year. The animals were collected monthly from January to December, 2006. The bats were captured with mist nets which were used from the sunset to the sunrise, during the whole night totalizing a sampling effort of 85760 m2.h. Also, information about temperature and pluviometric precipitation were also collected. During the study 62 male and 58 female bats were captured totalizing 120 animals. Among the female, pregnant, lactating and inactive ones were more frequent in the in the wet season. A higher value was noticed for active females during the dry season. As for male bats, a higher percentage was registered for active ones in the wet season whereas the inactive ones presented the same values in both seasons. Such information suggests that A. lituratus from forest fragments of Porto Rico, Paraná presented poliestry for the present study, concentrating the reproduction in the months of wet seasons which indicates the importance of climate conditions, such as temperature and precipitation over the reproduction of these animals.

Keywords: reproduction, semi-deciduous forest


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