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The Eurasian beaver population monitoring status in the Czech Republic

Aleš Vorel ; Department of Ecology, Faculty of Environment Sciences, University of Life Sciences, Prague, Czech Republic
Lenka Válková ; Department of Ecology, Faculty of Sciences, Palacky University, Olomouc, Czech Republic
Lenka Hamšíková ; Department of Ecology, Faculty of Environment Sciences, University of Life Sciences, Prague, Czech Republic
Jaroslav Malon ; Department of Ecology, Faculty of Sciences, Palacky University, Olomouc, Czech Republic
Jana Korbelová ; Department of Ecology, Faculty of Environment Sciences, University of Life Sciences, Prague, Czech Republic

Sažetak

The Eurasian beaver is or will be an important large mammal in the Europe; at present there are about 1 million individuals on our continent. Our monitoring effort was aimed at observing the development of a large, stabilized beaver population and was primarily focused in the areas representing 3 different types of habitat occupied by beavers in the Czech Republic – flood-plain forest, agriculture landscape and small watercourses. The aim was to get detailed information about territory size, abundance, habitat and feeding requirements of the Eurasian beaver in our country. All signs of beaver activity were recorded, together with their GPS position. Using spatial analysis (based on kernel density estimates) density spot clusters were generated to indicate the proper location of each territory and its size.
A total of 246 beaver territories, with an average territory length of 1.7 kilometers, were found in the areas tracked; population abundance was estimated at between 1200–1300 individuals. One hundred and twenty eight territories (52%) were located in more or less proven flood-plain forests in the alluvial plains of medium-sized rivers. Sixty nine territories (28%) were evaluated as settlements in landscape of a purely agricultural character with intensively or extensively managed production areas in the vicinity of beaver-settled banks. A further 49 territories (20%) existed on the small watercourses of lower or middle positions or on the watercourses of sub-montane or mountain areas. The initial monitoring results will form baseline data to assess the future expansion and utilization of resources of the developing beaver population.

Ključne riječi

monitoring; territory; habitat requirements

Hrčak ID:

33968

URI

https://hrcak.srce.hr/33968

Datum izdavanja:

31.12.2008.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.795 *