کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9447940 | 1305577 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phenology, duration and site fidelity of wintering bluethroat (Luscinia svecica) at Eilat, Israel
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Between 1984 and 2002, a total of 7643 Bluethroats were ringed and 1054 of these were re-captured at the International Birding and Research Center (IBRCE) in Eilat, Israel (29°33â²N, 34°57â²E). The autumn migration of Bluethroat begins in September and ends in early December (median 01-Nov). The spring migration starts in early March and continues till May (median 21-Mar). Wintering Bluethroats arrive during October and November and stay in Eilat until March and April. The Bluethroats remain at the winter quarters for up to 4 months, though some individuals could linger for as long as more than 5 months. The majority of the wintering population was males (65.3%) and adult birds (66.1%), the sex ratio during winter (65:35) did not differ significantly from the sex ratio during autumn migration (60:40). The ratio between young and adult birds at Eilat during winter (66:34) differed significantly from the autumn migration (75:25). Wintering site fidelity for six seasons (consecutive autumn through spring) from 1996 to 2001 was 1.8%. Wintering site fidelity of Bluethroats when compared between birds that winter for the second and third season shows a recovery rate of 37.1%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Arid Environments - Volume 61, Issue 1, April 2005, Pages 93-100
Journal: Journal of Arid Environments - Volume 61, Issue 1, April 2005, Pages 93-100
نویسندگان
M. Markovets, R. Yosef,