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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Rezumat articol ediţie STUDIA UNIVERSITATIS BABEŞ-BOLYAI În partea de jos este prezentat rezumatul articolului selectat. Pentru revenire la cuprinsul ediţiei din care face parte acest articol, se accesează linkul din titlu. Pentru vizualizarea tuturor articolelor din arhivă la care este autor/coautor unul din autorii de mai jos, se accesează linkul din numele autorului. |
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STUDIA BIOLOGIA - Ediţia nr.1 din 2020 | |||||||
Articol: |
COLONIAL WINTERING OF LONG-EARED OWL (ASIO OTUS) IN BOTOȘANI COUNTY (N-E ROMANIA). Autori: MEDEEA C. HALICI, ALEXANDRU NICOLAE STERMIN. |
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Rezumat: DOI: 10.24193/subbbiol.2020.1.07 Published Online: 2020-06-30 Published Print: 2020-06-30 pp. 83-92 VIEW PDF FULL PDF This study explores the phenological aspects and distribution of long-eared owl (Asio otus) colonies in Botoșani county, N-E Romania. The anthropogenic impact was also evaluated and analyzed and the microhabitat where the colonies are located. Data was collected between November 2018 and February 2019. 9 settlements in Botoșani county, including the municipality of Botoșani, were investigated. Data about temperature, the size of the colony, the tree species where the colony is located and anthropogenic impact, were collected. 9 colonies were identified with a total of 340 individuals. Two short-eared owl (Asio flammeus) were identified in one of the colonies. The maximum number (51) of specimens is reached in the months of January and February, and the minimum number (30) in the months of November and December. It has been observed that when the temperatures tend to fall, the size of the colonies register significant growth. The preferred species of trees are gymnosperms (69%), the owls were found on angiosperms as well (31%). The preference for the coniferous species increases along with the drop in temperatures and the increase in rainfall or snowfall, as these types of trees offer better protection against the weather conditions. We noticed that the anthropogenic factor has a significant influence on the colonies of Asio otus, so we wanted to grade it with the help of a scale from 1 to 7. Grade 1 was given in only one locality (Știubieni), grade 2 was registered in 4 points (Dorohoi, Avrămeni, Botoșani, and Roma), grade 3 is found only in Bucecea, Corlăteni registers a grade of 4, while in Dobârceni the registered value is 5, grade 6 is met only in Săveni. Grade 7 represented the stage in which there is a decrease in the population of Asio otus, or the death of individuals for various reasons, a situation that has not been yet encountered. Keywords: phenology, tree selection, anthropogenic impact. |
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