Over-summering shorebirds at the Kerala coasts, west-coast of India

Watershed Ecology and the Environment Pub Date : 2023-01-01 DOI:10.1016/j.wsee.2023.09.001

C.T. Shifa

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Abstract

Over-summering is a phenomenon usually exhibited by migratory shorebirds. Those individuals that over-summer at their wintering grounds appear to be sexually immature or unfit to meet the risks of migration. Documentation of such migratory shorebirds are scanty along the Indian coasts and the present study focused on recording the over-summering shorebirds at five sites (Kappad Beach, Korappuzha Beach, Elathur Beach, Ariyallur Beach and Kadalundi-Vallikkunnu Community Reserve) along the west coast of India during 2021–2022. Over-summering shorebird species were identified and documented once in a week using a binocular, a spotting scope and a 4 K high speed motion latest video camera. Six species of over-summering shorebirds (Lesser Sand Plover Charadrius mongolus, Greater Sand Plover Charadrius leschenaultii, Pacific Golden Plover Pluvialis fulva, Whimbrel Numenius phaeopus, Common Sandpiper Actitis hypoleucos and Ruddy Turnstone Arenaria interpres) were recorded from the five study areas and their abundance were observed to be declining during the study period.

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印度西海岸喀拉拉邦海岸过夏的滨鸟

夏季过度迁徙是候鸟经常出现的现象。那些在夏季越冬地的个体在性方面似乎不成熟或不适合应对迁徙的风险。印度海岸对这种迁徙滨鸟的记录很少，本研究重点记录了2021年至2022年期间印度西海岸五个地点（Kappad海滩、Korappuzha海滩、Elathur海滩、Ariyallur海滩和Kadalundi Vallikkunnu社区保护区）的过夏滨鸟。使用双目望远镜、瞄准镜和最新的4K高速摄像机，每周一次识别和记录夏季的滨鸟物种。在五个研究区记录了六种过夏滨鹬（小沙鹬、大沙鹬），观察到它们的丰度在研究期间呈下降趋势。

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Watershed Ecology and the Environment

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3.00

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