Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves

The Yangtze finless porpoise has become as significant indicator of current ecological conservation effectiveness in Poyang Lake, where nearly half of the population is found. Serious water shortages in the lake during the dry season has led the government to consider the establishment of a hydrauli...

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Autores principales: Qiyue Li, Geying Lai, Ying Liu, Adam Thomas Devlin, Shupin Zhan, Sheng Wang
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Lenguaje:EN
Publicado: Elsevier 2021
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Acceso en línea:https://doaj.org/article/2da1a5031ed74eb896f4b1bde59523fd
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spelling oai:doaj.org-article:2da1a5031ed74eb896f4b1bde59523fd2021-12-01T04:54:51ZAssessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves1470-160X10.1016/j.ecolind.2021.107873https://doaj.org/article/2da1a5031ed74eb896f4b1bde59523fd2021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21005380https://doaj.org/toc/1470-160XThe Yangtze finless porpoise has become as significant indicator of current ecological conservation effectiveness in Poyang Lake, where nearly half of the population is found. Serious water shortages in the lake during the dry season has led the government to consider the establishment of a hydraulic project (PLHP) in order to remedy the deteriorating situation. However, the possible impacts of the PLHP on porpoise habitats is uncertain since the distribution of porpoise habitats during the dry season has not been sufficiently studied. Here, we combine hydrodynamic and species distribution models to simulate likely habitat and nursing area variations with or without PLHP during the dry season. Results indicate that flow velocity and distance to sand mining areas dominate the habitat preferences of the porpoise and its calves, respectively. Habitats were concentrated in the narrow channel of the Lake, which includes an area less than 10% of the lake inundation area. Under the operation of PLHP, the nursing area will increase, and the habitat will increase during September to December, but decrease during January to February. However, their proportion of the lake inundation area will decreased by 0.5% to 1.6%, and the distribution pattern will become more discontinuous. Our results suggest that the PLHP may not substantially benefit the porpoise, as it will block the only natural migration channel between Poyang Lake and the Yangtze River.Qiyue LiGeying LaiYing LiuAdam Thomas DevlinShupin ZhanSheng WangElsevierarticleHydraulic projectHydrodynamic modelingSpecies distribution modelingLikely habitat distributionPorpoise conservationEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107873- (2021)
institution DOAJ
collection DOAJ
language EN
topic Hydraulic project
Hydrodynamic modeling
Species distribution modeling
Likely habitat distribution
Porpoise conservation
Ecology
QH540-549.5
spellingShingle Hydraulic project
Hydrodynamic modeling
Species distribution modeling
Likely habitat distribution
Porpoise conservation
Ecology
QH540-549.5
Qiyue Li
Geying Lai
Ying Liu
Adam Thomas Devlin
Shupin Zhan
Sheng Wang
Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves
description The Yangtze finless porpoise has become as significant indicator of current ecological conservation effectiveness in Poyang Lake, where nearly half of the population is found. Serious water shortages in the lake during the dry season has led the government to consider the establishment of a hydraulic project (PLHP) in order to remedy the deteriorating situation. However, the possible impacts of the PLHP on porpoise habitats is uncertain since the distribution of porpoise habitats during the dry season has not been sufficiently studied. Here, we combine hydrodynamic and species distribution models to simulate likely habitat and nursing area variations with or without PLHP during the dry season. Results indicate that flow velocity and distance to sand mining areas dominate the habitat preferences of the porpoise and its calves, respectively. Habitats were concentrated in the narrow channel of the Lake, which includes an area less than 10% of the lake inundation area. Under the operation of PLHP, the nursing area will increase, and the habitat will increase during September to December, but decrease during January to February. However, their proportion of the lake inundation area will decreased by 0.5% to 1.6%, and the distribution pattern will become more discontinuous. Our results suggest that the PLHP may not substantially benefit the porpoise, as it will block the only natural migration channel between Poyang Lake and the Yangtze River.
format article
author Qiyue Li
Geying Lai
Ying Liu
Adam Thomas Devlin
Shupin Zhan
Sheng Wang
author_facet Qiyue Li
Geying Lai
Ying Liu
Adam Thomas Devlin
Shupin Zhan
Sheng Wang
author_sort Qiyue Li
title Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves
title_short Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves
title_full Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves
title_fullStr Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves
title_full_unstemmed Assessing the impact of the proposed Poyang lake hydraulic project on the Yangtze finless porpoise and its calves
title_sort assessing the impact of the proposed poyang lake hydraulic project on the yangtze finless porpoise and its calves
publisher Elsevier
publishDate 2021
url https://doaj.org/article/2da1a5031ed74eb896f4b1bde59523fd
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