Northerly dispersal trends in a lowland population of Peregrines Falco peregrinus in southwest England

Q4 Agricultural and Biological Sciences

Ringing and Migration Pub Date : 2021-07-03 DOI:10.1080/03078698.2022.2150783

Edward J. A. Drewitt, I. Cuthill, L. Sutton, Hamish R. Smith, Sebastian W. Loram, Rob J. Thomas

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引用次数: 1

Abstract

ABSTRACT Little is known about the post-natal dispersal of Peregrines Falco peregrinus from lowland areas of England. We used the resighting and recovery data from 66 Peregrine nestlings (34 females, 32 males) colour-ringed in the southwest of England to outline their reported dispersal movements. Our results revealed that Peregrines, in particular females, disperse in a north-northeasterly direction, with females being resighted at greater distances than males. Males were resighted a mean of 44 km from their natal site and females significantly further (mean 117 km). Despite more recent local and regional declines in some areas of their UK range, Peregrines have been increasing at a national level in England and extending their breeding range into new areas. Our results indicate that Peregrines have the potential to continue occupying suitable vacant habitats across the UK. Dispersing birds from the southwest of England are potentially helping to increase the breeding population of Peregrines in other areas where they have been absent or scarce for many years.

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英格兰西南部低地游隼种群向北扩散的趋势

摘要：人们对法尔科游隼在出生后从英格兰低地地区的传播知之甚少。我们使用了66只在英格兰西南部被彩色环绕的游隼雏鸟（34只雌性，32只雄性）的重新定居和恢复数据，来概述它们报告的扩散运动。我们的研究结果表明，游隼，尤其是雌性游隼，向东北偏北方向分散，雌性游隼的封号距离比雄性游隼更远。雄性在距离出生地平均44公里的地方被封为居民，雌性则明显更远（平均117公里）。尽管最近在英国的一些地区出现了局部和区域性的衰退，但游隼在英格兰的全国范围内一直在增加，并将其繁殖范围扩大到了新的地区。我们的研究结果表明，游隼有可能继续在英国各地占据合适的空闲栖息地。来自英格兰西南部的分散鸟类可能有助于增加游隼在其他地区的繁殖数量，这些地区多年来一直没有游隼或游隼稀少。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ringing and Migration Agricultural and Biological Sciences-Animal Science and Zoology

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0.30

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0.00%

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