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habitat requirements of Boreal Owl(Aegolius funereus)and Pygmy Owl(Glaucidium passerinum)in rear edge montane populations on the Balkan Peninsula

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Avian Research 2022年第2期13卷 175-182页

作者： Boris P.Nikolov Tzvetan Zlatanov Thomas Groen Stoyan Stoyanov Iva Hristova-Nikolova Manfred J.Lexer Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences 2 Yuri Gagarin Str.SfiaBulgaria Faculty of Geo-Information Science and Earth Observation(ITC)University of Twente Hengelosestraat 99 7514AEEnschedethe Netherlands University of Forestry 10Sv.Kliment Ohridski Blvd.SofiaBulgaria Biota Films Ltd. 51 Prof.Kiril Popov Str.SofiaBulgaria University of Natural Resources and Life Sciences Peter-Jordan-Str.82ViennaAustria

Rear-edge populations of montane species are known to be vulnerable to environmental change,which could affect them by habitat reduction and *** requirements of two cold-adapted boreo-alpine owl species—Boreal Owl(Aegolius funereus)and Pygmy Owl(Glaucidium passerinum)—have been studied in refugial montane populations in the western Rhodopes,South *** on owl presence and forest stand attributes recorded in situ have been used to identify significant predictors for owl *** results revealed Boreal Owl’s preference for comparatively dense forests(high canopy closure values),big trees(diameter at breast height≥50 cm)and large amount of fallen dead wood in penultimate stage of *** Pygmy Owl the only significant explanatory variable was the total amount of fallen dead *** suggest preference of both owl species for forests with structural elements typical of old-growth forests(i.e.,veteran trees,deadwood),the Pygmy Owl being less prone to inhabit managed *** at the rear edge of their Palearctic breeding range in Europe both Boreal and Pygmy Owls are of high conservation value on the Balkan ***,additional efforts are needed for their conservation in the light of climate change and resulting alteration of forest structural *** findings can be used for adjusting forest management practices in order to ensure both,sustainable profit from timber and continuous species survival.

关键词： Forest management habitat requirements Owls Refugial populations

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Small mammal diversity and habitat requirements in the Kahuzi- Biega National Park and surrounding areas, eastern Democratic Republic of Congo

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Integrative Zoology 2007年第4期2卷 239-246页

作者： Prince K.KALEME John BATES Julian Kerbis PETERANS Mwanga M.JACQUES Benjamin R.NDARA Laboratory of Mammalogy Biology DepartmentCRSN LwiroBukavuDR Congo Zoology Department the Field Museum of Natural HistoryChicagoUSA

We conducted a study on diversity and habitat requirements of small mammals in the western part of the AlbertineRift, eastern Democratic Republic of Congo. The work aimed at providing a more complete list of species recordedto date and their habitat requirements to aid conservation efforts in the region. Trapping was conducted usingMuseum special, Victor traps, Sherman live traps and pitfall traps in four different habitats. A total of 57 specieswas recorded. Plantations and open habitats harbored the same species. In the forested areas we recorded 30 specieswhich are not tolerant to disturbance. Eighteen species are Albertine Rift endemics. One species (Lophuromyscinereus), which is vulnerable and data deficient, has been recorded only in swamp. This study has recorded morespecies than the previous studies, some of which have not been reported in earlier studies. Differences between thisand earlier studies are attributed to methods and the areas sampled. Some of the habitats sampled by previousworkers have not been assessed. More research is needed, especially in swamps in mountain areas and in deepforests inhabited by species not present at lower altitudes.

关键词： diversity habitat requirements Kahuzi-Biega small mammal

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