Romanian Journal of Biology - Zoology

ROMANIAN ACADEMY
Institute of Biology -Bucharest



MONITORING OF THE SAPROXYLIC BEETLE ROSALIA ALPINA (LINNAEUS, 1758) (COLEOPTERA: CERAMBYCIDAE) USING VISUAL METHODS IN THE MĂCIN MOUNTAINS NATIONAL PARK (ROMANIA)

MINODORA MANU*, NICOLAE LOTREAN**, DENISA BADIU***, FLORIAN BODESCU****, ROXANA NICOARĂ*, MARILENA ONETE *





 Abstract:


   A monitoring programme was developed for Rosalia alpina (Linnaeus, 1758) in the Măcin Mountains National Park (MMNP), using visual methods. Three transects were monitored for two years (2014 and 2015). To make a correlation between numerical abundance and environmental variables, ten abiotic factors were analysed: altitude (A), exposition (Ex.), slope (S.a), forest coverage (F.c.), air temperature (A.t.), soil temperature (S.t.), air relative humidity (A.h.), cloud cover (Nb.), wind speed (W.s.) and wind direction (W.d.). In two years of study, 37 specimens of Rosalia alpina were identified. The main environmental variables that influenced the beetle population dynamics were: the type of habitat, exposition, air temperature and air relative humidity. The most favourable habitats for this species were Pannonian-Balkanic Turkey oak-sessile oak forests (91M0) and Moesian silver lime woods (91Z0). Rosalia alpina preferred slopes smaller than 45°, with South-West exposition, with warmer climate (27°C-31°C), and correlated with relative air humidity of 50%-70%. Rosalia alpina preferred habitats where recorded values for relative humidity were between 50%-70%. The main threats and protection measures for Rosalia alpina are provided to aid conservation.




 Citation:


   MINODORA MANU*, NICOLAE LOTREAN**, DENISA BADIU***, FLORIAN BODESCU****, ROXANA NICOARĂ*, MARILENA ONETE *, 2016. MONITORING OF THE SAPROXYLIC BEETLE ROSALIA ALPINA (LINNAEUS, 1758) (COLEOPTERA: CERAMBYCIDAE) USING VISUAL METHODS IN THE MĂCIN MOUNTAINS NATIONAL PARK (ROMANIA), Romanian Journal of Biology - Zoology, 61(1-2): 43–59.




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