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Gnezdenje in uporaba zimskega krmišča pri orlu belorepcu (Haliaeetus albicilla) na Kočevskem
ID Kovač, Aljaž (Author), ID Krofel, Miha (Mentor) More about this mentor... This link opens in a new window

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Abstract
Orel belorepec (Haliaeetus albicilla L.) je v Sloveniji domorodna vrsta, ki naj bi bila tukaj prisotna že vse od obdobij ledenih dob naprej. Danes je na območju celotne Slovenije znanih 8-11 parov; številčnost populacije se povečuje. Namen naloge je ugotoviti gnezditveno biologijo orla belorepca na Kočevskem, saj v preteklosti ni bilo zanesljivih podatkov o gnezditvenem vedenju in vzreji mladičev. V letu 2019 smo s pomočjo videosistema podrobno spremljali dogajanje na gnezdu in na krmišču, namenjenemu polaganju mrhovine v zimskem času. V letu 2020 smo zaradi tehničnih težav kamere zabeležili le nekaj osnovnih podatkov. V obeh letih spremljanja sta odrasla orla uspešno speljala po dva mladiča. Po pregledu posnetkov smo ugotovili, da je fenologija gnezditve pri orlu belorepcu na Kočevskem usklajena na zgodnejše obdobje kot v populacijah orla belorepca v Severni Evropi in je bolj podobna drugim populacijam Srednje Evrope. Za valjenje jajc skrbita tako samec kot samica, pri čemer je časovni delež valjenja jajc pri samici večji in znaša dve tretjini časa. Za prinašanje hrane mladičema skrbita oba, in sicer najpogosteje med 10. in 13. uro. V času spremljanja se je orel belorepec na zimskem krmišču pojavil v samo treh primerih.

Language:Slovenian
Keywords:orel belorepec, Haliaeetus albicilla L., gnezdenje, zimsko krmišče, vzreja mladičev
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Place of publishing:Ljubljana
Publisher:[A. Kovač]
Year:2021
PID:20.500.12556/RUL-127698 This link opens in a new window
UDC:630*14 Haliaeetus albicilla L.+15(043.2)=163.6
COBISS.SI-ID:68762371 This link opens in a new window
Publication date in RUL:20.06.2021
Views:2482
Downloads:86
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Secondary language

Language:English
Title:White-tailed eagle`s (Haliaeetus albicilla) nesting and feeding in the winter feeding ground in the Kočevje area
Abstract:
White-tailed eagle (Haliaeetus albicilla L.) is an indigenous species in Slovenia, supposedly present in the area since the Ice Age. Today, the entire Slovenia hosts 8 to 11 known couples, however, the population is increasing. The purpose of this thesis is to determine the nesting biology of the white-tailed eagle in the Kočevje region as there was previously no reliable information regarding the nesting behaviour and the rearing of the eaglets. With the use of a video system, a nest and a feeding ground intended for setting carcasses during the winter were continuously observed in 2019. Due to technical difficulties, only a few basic information were observed in 2020. During both years of study, adult white-tailed eagles have successfully reared two eaglets each year. After the examination of the footages, it has been established that the white-tailed eagles nesting phenology in the Kočevje region in aligned to earlier phase than in Northern Europe and is similar to other populations in Central Europe. Both male and female do the brooding, however, the majority of brooding is done by the female as they perform two thirds of the total brooding time. Both male and female white-tailed eagles bring food to the eaglets, mainly between 10 a.m. and 1 p.m. During the our study the white-tailed eagle was only observed three times in the winter feeding ground.

Keywords:white-tailed eagle, Haliaeetus albicilla L., nesting, winter feeding ground, rearing of the eaglets

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