Wintering status of Raven in Eastern Hokkaido.
نویسندگان
چکیده
منابع مشابه
Common Raven Nests in Eastern Kentucky
Although ravens were once widespread throughout Appalachia they are now considered threatened or endangered in many states of the region. We document a nesting pair of common ravens in an area of southeastern Kentucky nearly 50 km northwest of traditional nesting sites. Further, we suggest several factors that may have influenced the patterns of raven abundance in the state and offer management...
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In this study, the trend of overwintering and breeding populations of the endangered white-headed duck Oxyura leucocephala was studied using 52 years of mid-winter waterbirds census in Iran (1969–2020) and breeding reports of the species in the 2010s. The trend of species population changes was calculated using RTRIM statistical package in R software. Species population in Iran indicates a subs...
متن کاملJohn Raven
John Raven is Boyd Baxter Professor of Biology at the University of Dundee. He studied botany at the University of Cambridge, and stayed on for a PhD in plant biophysics with an exceptionally insightful scientist and mentor, Professor Enid MacRobbie. His research at Dundee is centred on how organisms acquire and manipulate resources from their environment with particular emphasis on photosynthe...
متن کاملSurveillance of avian influenza virus in migratory water birds in eastern Hokkaido, Japan.
The epidemiological information has obtained on avian influenza virus (AIV) in eastern Hokkaido, Japan, where AIV surveillance has not been performed. Cloacal or fecal samples obtained from migratory water birds were screened for AIV both by real-time reverse transcriptase polymerase chain reaction to detect the influenza A virus matrix (M) gene and by egg inoculation. Between 2007 and 2009, a ...
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ژورنال
عنوان ژورنال: Japanese Journal of Ornithology
سال: 2008
ISSN: 0913-400X,1881-9710
DOI: 10.3838/jjo.57.11