Wintering waterbirds in a large river floodplain: Hydrological connectivity is the key for reconciling development and conservation
Xia, SX; Liu, Y; Wang, YY; Chen, B; Jia, YF; Liu, GH; Yu, XB; Wen, L
2016
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume573Pages:645-660
AbstractAn alteration in the hydrological connectivity reduces the synergistic processes and interactions between rivers and their floodplains, and changes the distribution of waterbirds that rely on floodplains as foraging grounds. Recent river and wetland conservation and restoration efforts have been partially focused on reinstating the natural river-floodplain connectivity to ameliorate the ecological effects of regulation in river systems. However, in regions where human well-being is tightly linked with the cultivation of the floodplain (such as fisheries), management options are constrained and trade-offs among competing social, economic and ecological goals may be necessary for the wise use of wetlands. Poyang Lake in east central China includes numerous sub-lakes with different types of hydrological regulation; therefore, this lake may provide a useful context for exploring the likelihood of such trade-offs. In this study, we used multiyear simultaneous waterbird survey data together with habitat maps derived from satellite imagery for Poyang Lake to examine-the variations in waterbird community structure and abundance within sub-lakes with different types of hydrological regulation. Using a Bayesian Markov chain Monte Carlo approach, we built generalized linear mixed models to explore the differences in wetland composition and waterbird abundance/diversity among three lake types (i.e. isolated, freely connected, and controlled) at community, guild and species levels.. The results showed hydrological connectivity alteration clearly affects wintering waterbirds; in addition, the ecological benefits of a natural flow regime were most unambiguous at the community level. Nevertheless, little evidence exists to indicate that the lakes' ecological values as waterbird foraging grounds were compromised by partial regulation. That is, species richness and population size were comparable in naturally connected and controlled lakes. Our results suggest that, with carefully designed management plans, a delicate balance between waterbird conservation and development can be accomplished in large river floodplains. Crown Copyright (C) 2016 Published by Elsevier B.V. All rights reserved.
SubtypeJournal
KeywordFeeding guilds GLMM Hydrological connectivity alteration Poyang Lake Trade-off Wintering waterbirds
Subject AreaEnvironmental Sciences & Ecology
WOS Subject ExtendedEnvironmental Sciences
WOS KeywordPOYANG LAKE ; FLOW REGULATION ; HABITAT SELECTION ; LEVEL MANAGEMENT ; YANGTZE-RIVER ; DAM REMOVAL ; CHINA ; WETLANDS ; BIODIVERSITY ; RESTORATION
Indexed BySCI
Language英语
WOS IDWOS:000390071000061
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44141
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Xia, SX,Liu, Y,Wang, YY,et al. Wintering waterbirds in a large river floodplain: Hydrological connectivity is the key for reconciling development and conservation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,573:645-660.
APA Xia, SX.,Liu, Y.,Wang, YY.,Chen, B.,Jia, YF.,...&Wen, L.(2016).Wintering waterbirds in a large river floodplain: Hydrological connectivity is the key for reconciling development and conservation.SCIENCE OF THE TOTAL ENVIRONMENT,573,645-660.
MLA Xia, SX,et al."Wintering waterbirds in a large river floodplain: Hydrological connectivity is the key for reconciling development and conservation".SCIENCE OF THE TOTAL ENVIRONMENT 573(2016):645-660.
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