Distribution of Common Merganser Mergus merganser in Hokkaido, Japan
A distribution map of the Common Merganser Mergus merganser in Hokkaido, Japan, is presented based upon data obtained by transect and spot censuses, records from the literature, and unpublished personal records. The Common Merganser occurred on rivers, lakes and reservoirs which were situated mainly...
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Published in | Journal of the Yamashina Institute for Ornithology Vol. 54; no. 1; pp. 207 - 214 |
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Main Author | |
Format | Journal Article |
Language | Japanese English |
Published |
Yamashina Institute for Ornitology
02.07.2022
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Subjects | |
Online Access | Get full text |
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Summary: | A distribution map of the Common Merganser Mergus merganser in Hokkaido, Japan, is presented based upon data obtained by transect and spot censuses, records from the literature, and unpublished personal records. The Common Merganser occurred on rivers, lakes and reservoirs which were situated mainly to the east of Hidaka Mountains and Daisetsu mountainous area and north of 43°20′N. Air temperatures during breeding season in these areas are lower than in other areas. It is considered that air temperature during breeding season is one of the factors determining the distribution of the species. |
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ISSN: | 1348-5032 1882-0999 |
DOI: | 10.3312/jyio.54.207 |