Could gaps and diverse topography compensate for habitat deficiency by the forest-dwelling bird Hazel Grouse (Tetrastes bonasia)?
PBN-AR
Instytucja
Instytut Ochrony Przyrody Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Avian Biology Research
ISSN
1758-1559
EISSN
Wydawca
SCIENCE REVIEWS 2000 LTD
DOI
URL
Rok publikacji
2019
Numer zeszytu
2
Strony od-do
59-66
Numer tomu
12
Identyfikator DOI
Liczba arkuszy
0,99
Słowa kluczowe
angielski
habitat homogeneity
mountain forests
spruce
Hazel Grouse
Tatra Mountains
Streszczenia
Język
angielski
Treść
The Hazel Grouse (Tetrastes bonasia) is considered an indicator of the naturalness and heterogeneity of the forest environment. This species occurs in various woods and forages on a variety of plants. The aim of this study was to verify the hypothesis that, in Norway spruce-dominated forest stands, the Hazel Grouse compensates for habitat poverty using non-forest areas and harsh topography, which deliver food resources and shelter for the birds. We compared 14 environmental and topographic variables in forest patches occupied and unoccupied by the Hazel Grouse in the Tatra Mountains (South Poland). Multivariate modelling showed that crucial factors for Hazel Grouse occurrence in spruce-dominated high-mountain forests were southern or western exposures, the presence of streams or glades and a multilayer forest structure with lower plant species richness in the undergrowth layer. Moreover, this species avoided clearcuts and depended either on wild sites (with a high share of deadwood and treefall gaps in mature stands at higher altitudes) or juvenile stands. The results of our study confirmed that gaps in forests and diverse topography could compensate the Hazel Grouse for habitat deficiency. These findings may be important for effective protection of this species in high-mountain spruce-only dominated forests.
Inne
System-identifier
EX-5d47d75dd5de1cd9ef6061fb
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