Survival and Home-range Size of Northern Spotted Owls in Southwestern Oregon
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چکیده
منابع مشابه
Diet and Home-range Size of California Spotted Owls in a Burned Forest
Fire is pervasive in forests used by California Spotted Owls (Strix occidentalis occidentalis) and their prey species. We assessed the diets and sizes of the breeding-season home ranges of seven Spotted Owls occupying burned forests in the southern Sierra Nevada 4 years after a fire and compared the results with data from previous studies in unburned forests within the range of the subspecies. ...
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Helminth parasites are reported for the first time from northern spotted owls. Seventy-one percent of a sample of Strix occidentalis caurina from western Oregon was infected. Nematodes (Porrocaecum depressum, Capillaria falconis, Microtetrameres sp. and Synhimantus hamatus) were the most prevalent parasites although cestodes (Paruterina rauschi) and acanthocephalans (Centrorhynchus conspectus) ...
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We studied home range and habitat selection of radio-marked adult California spotted owls (Strix occidentalis occidentalis) randomly selected from among the breeding population of owls in the central Sierra Nevada, California from June to October 2006. The most parsimonious home-range estimate for our data was 555 ha (SE 1⁄4 100 ha). Home-range size was positively correlated with the number of ...
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متن کاملBarred owls and landscape attributes influence territory occupancy of northern spotted owls
We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State, USA, 1989-2005. Local colonization is the probability a territory unoccupied by a spotted owl in year i would be occupied in year i + 1, and local extinction is the probability a territory that was...
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ژورنال
عنوان ژورنال: Journal of Raptor Research
سال: 2013
ISSN: 0892-1016,2162-4569
DOI: 10.3356/jrr-11-76.1