首页> 外文期刊>山階鳥類学雑誌 >滋賀県彦根市の琵琶湖岸におけるヒヨドリHypsipetes amaurotisの春の渡りと気象条件との関係
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滋賀県彦根市の琵琶湖岸におけるヒヨドリHypsipetes amaurotisの春の渡りと気象条件との関係

机译:滋贺县彦根市琵琶湖沿岸bulb(Hy)的春季迁徙与气象条件的关系

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摘要

鳥類の中には長距離の渡りをするものが数多く知られており,これら渡り鳥は好適な環境を求め,繁殖地と越冬地との問を季節的に移動するといわれている(Kerlinger 2000)。日本では一般的な森林性の鳥類であるヒヨドHypsipetes amaurotisは,北海道から沖縄まで全国に分布しており,朝鮮半島南部,台湾,フィリピン北部などにも分布する(中村1995,唐沢1997)。%The spring migration flights of the Brown-eared Bulbul Hypsipetes amaurotis were observed on the shore of Lake Biwa at Hikone City, Shiga Prefecture, Japan, over thirty days between 12 April and 13 May, 2005. The relationship between migratory flight activity and weather conditions was investigated. A total of 142 flocks, consisting of 5,338 individuals, were observed during the study period. The maximum number of flocks (25) was recorded on 23 April and that of individuals (1,257) on 19 April. On fine and calm days, many migratory flocks were recorded, whereas few were evident on windy days. A negative correlation was detected between the number of migratory flocks and wind velocity. Moreover, many migratory flocks were observed in the morning, especially between 06 : 00 and 09 : 00. In contrast, the flights of resident birds were observed even on windy days and in the afternoon. The flight direction for migratory birds was concentrated toward the northeast, a direction parallel to the coastline of Lake Biwa, and migratory flocks may utilise the coastline of Lake Biwa as landmark.
机译:人们知道许多会长距离迁移的鸟类,据说这些候鸟会在繁殖场和越冬场之间季节性迁徙,以寻找合适的环境(Kerlinger 2000)。 Hypsipetes amaurotis是日本常见的森林鸟类,分布在北海道至冲绳的全国范围内,还分布在朝鲜半岛南部,台湾,菲律宾北部(Nakamura 1995; Karasawa 1997)。在2005年4月12日至5月13日的30天内,在日本滋贺县彦根市的琵琶湖岸上观察到了棕耳的斑节大戟的春季迁徙飞行。迁徙活动与天气的关系在研究期间共观察到142个鸡群,包括5338只个体。4月23日记录了最大鸡群(25),4月19日记录了最大个体(1,257)。迁徙的鸡群数量与风速之间呈负相关,此外,早晨观察到许多迁徙的鸡群,特别是在06:00至09:之间。 00.相反,即使在大风天和下午也观察到了常驻鸟类的飞行。候鸟的飞行方向集中在东北,与t平行。琵琶湖的海岸线和候群可能会利用琵琶湖的海岸线作为地标。

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