Latest Articles from Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” Latest 3 Articles from Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” https://travaux.pensoft.net/ Fri, 29 Mar 2024 07:47:52 +0200 Pensoft FeedCreator https://travaux.pensoft.net/i/logo.jpg Latest Articles from Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” https://travaux.pensoft.net/ Nest box occupancy dynamics by hazel dormice (Muscardinus avellanarius) in central-western Romania https://travaux.pensoft.net/article/115008/ Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 66(2): 355-365

DOI: 10.3897/travaux.66.e115008

Authors: Eliana Sevianu, Ramona-Andreea Bivoleanu, Ioan Alexandru Rădac

Abstract: The hazel dormouse, Muscardinus avellanarius is a vulnerable and protected species that is challenging to study due to its specific way of life. Limited data on its distribution and population parameters are available for Romania. We collected data regarding species’ biology and ecology in the hilly areas of central-western Romania, within deciduous forests dominated by oak or beech species. We regularly monitored 80 wooden nestboxes, which served as shelter and breeding sites for the species, to assess the seasonal and sex-related variations in nest box usage. The highest occupancy levels were observed during the autumn, with a smaller peak in the spring. Males occupied more nest boxes than females, although the difference was not statistically significant. They also travelled greater distances. Most nest boxes were occupied by a single individual at a time. Recapture rates did not differ significantly between males and females, and most individuals were recaptured only once. Hazel dormice showed a high level of site fidelity, often returning to the same nestbox or one nearby. Interestingly, 14% of the females bred twice a year, which is a lower percentage compared to findings from other studies. Nest box occupancy rates in this region were also lower than those reported in other areas. However, it is important to note that these variations may be attributed to differences in methodology. The occupancy rate declined with the increased presence of the larger species, the fat dormouse Glis glis, which outcompeted the hazel dormouse.

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Research Article Sun, 31 Dec 2023 08:00:08 +0200
Orthopterans (Insecta: Orthoptera) of conservation value in the Eurasian Eagle Owl Bubo bubo food in Bulgaria https://travaux.pensoft.net/article/53867/ Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 63(2): 161-167

DOI: 10.3897/travaux.63.e53867

Authors: Dragan Chobanov, Boyan Milchev

Abstract: Three species of Bush-crickets (Orthoptera) of conservation value or poorly known were found in the Eurasian Eagle Owl food in southeastern Bulgaria. Their localities are new country records and two of them cover Natura 2000 SCI zones. The repeated predation on Bradyporus macrogaster in UTM square MG99 confirms the potential of this area for a new Natura 2000 site.

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Short Communication Thu, 31 Dec 2020 10:00:00 +0200
Lumbricides as a bio-indicators of the influence of electrical transmission line in the conditions of Ukrainian Polissia https://travaux.pensoft.net/article/51640/ Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 63(1): 7-18

DOI: 10.3897/travaux.63.e51640

Authors: Ruslana Vlasenko, Ivan Khomyak, Oleksandr Harbar, Nataliia Demchuk

Abstract: The complex interaction of a man and the environment requires the creation of algorithms for predict- ing the effects of anthropogenic impact. This requires the creation of the ecosystem models where all their basic elements and relationships are taken into account. One of the most effective methods for choosing the most informative differential elements of a system is the development and the implemen- tation of bio-indication models. Nowadays the important task is the development of the bio-indication methods for various anthropogenic complex effects.The electrical transmission lines carry out a specific integrated environmental impact. It is created on the changes in the environment under the influence of magnetic and electric fields and the long-term consequences of their interaction with ecosystem components. This effect is negative for the most representatives of biota and for earthworms in particular. We observe how the number of species de- creases, the species diversity reduces and the morphological parameters change towards species with a shorter body length under reaching the electrical transmission lines.Some genera of the earthworms are able to survive under the effects of the modern electrical transmis- sion lines, although this reflects their abundance and morphological parameters. These species include Aporrectodea caliginosa and Aporrectodea trapezoides. They can be used as diagnostic genera of impact of the electrical transmission lines on biota. They can be genera indicators for the determination of the effect of the electrical transmission lines. The presence of Lumbricus terrestris shows the low electrical transmission line effects, and the presence of Aporrectodea roseа or Aporrectodea longа shows low or moderate effects.We can create bioindication models according to the relations between groups of species of dominant and subdominant specimens formed by the body size. Under the condition of creating a wide data-base and establishing the vitality parameters, it is possible to develop more advanced and efficient algorithms for the synbioindicator analysis of the impact of the electrical transmission lines on the environment.

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Research Article Tue, 30 Jun 2020 11:00:00 +0300