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Recovery of bird communities following the construction of a large-scale hydroelectric dam

Ecological Processes 2021年第1期10卷 408-417页

作者： Affan Nasruddin-Roshidi Mohammad Saiful Mansor Nor Adibah Ismail Ehwan Ngadi Mohd Izzat-Husna shahril mod husin Farah Shafawati Mohd-Taib Rahmah Illias Shukor Md Nor Department of Biological Sciences and Biotechnology Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Kolej GENIUS Insan Universiti Sains Islam MalaysiaBandar Baru Nilai71800 NilaiNegeri SembilanMalaysia TNB Research Sdn Bhd No.1Kawasan Institusi PenyelidikanJalan Ayer Itam43000 KajangSelangorMalaysia Department of Wildlife and National Parks(PERHILITAN) Km.10Jln Cheras56100 Kuala LumpurWilayah PersekutuanMalaysia.

Background:Habitat degradation is known to have a major impact on the composition of bird communities,yet how these communities recover following such disturbance is less *** study examined bird community changes from pre-logging to recovery over the course of habitat disturbance caused by the development of the Hulu Terengganu Hydroelectric Dam Project in Peninsular Malaysia,between 2007 and *** surveys were conducted using point count observations and mist netting in the dam area from the prelogging phase until the operation ***:It was observed that while bird species significantly declined after large-scale habitat clearance between the pre-logging and construction phases,they showed positive signs of recovery from the inundation to operation *** findings indicate that the bird community is still recovering,and the permanent loss of habitat required by most of the original species has not occurred,as evidenced by *** species composition differed across phases due to varying habitat *** turnover rate and immigration rate(recolonisation and newly recorded species)were higher between the construction and operation *** was also observed that insectivorous birds were more heavily affected than others by changes to the landscape,which highlights the versatility,survivability and tolerance of certain species to extreme disturbance and habitat ***:Although the operation phase showed an incremental change in bird species richness due to recolonisation and newly recorded species,this value remains far from that of the pre-logging *** predict that bird species recovery will continue to increase for some time before reaching a plateau among the newly created islands,reservoir and catchment area of the dam.

关键词： Dam construction Extinction Habitat recovery Recolonisation Turnover

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