「鳥類(カラス類を主とした)と人との関わりに見られる都市環境の変化」の研究(平成9年度)

概要

論文の詳細を見る
The same items and contents that were contrived in a previous study, were investigated from April 1997 to March 1998. Information of crows was collected from two separate and distinct study areas. 1) Tokyo (a large urban area) and 2) in Akita city (a more natural, rural area). Basic investigation for comparisons between the large city environment and a more natural environment. 1. Investigations on roost distribution and roosted conditions. 2. Investigations on nest distribution and nested environment. The questionnaire investigations on nest eites of crows were conducted in Tokyo, and the field investigations for nest sites of crows were conducted in Akita city. However, the data for analyzing on the environment of nest sites of crows were not so many. 3. The relation of the roost and the feeding place of crows, and their activity range in the daytime.
国立科学博物館の論文
1999-03-25