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Measuring ecosystem degradation through half a century of fish species introductions and extirpations in a large isolated lake
Jiang, Zhong-Guan1,2; Brosse, Sebastien3; Jiang, Xiao-Ming1; Zhang, E.1
2015-11-01
Source PublicationECOLOGICAL INDICATORS
ISSN1470-160X
Volume58Pages:104-112
AbstractThe introduction of exotic species and the extirpation of native species that occurred during the past two centuries have strongly modified the structure of most plant and animal assemblages across the globe. Such a biotic change is particularly marked in isolated environments such as islands or isolated lakes. Most studies reported drastic changes between before and after human disturbances, but the dynamics of change in assemblage structure through the invasion and extirpation processes are rarely reported. Here we measured the aquatic ecosystem degradation through exotic species introduction and native species extirpation experienced by Lake Erhai (China) during the last 50 years using structural, functional and taxonomic distinctness biodiversity indices. Structural diversity (species richness) did not varied monotonically along the temporal gradient, due to an opposite trend between exotic species increase and a concomitant decline of native species richness. Functional diversity displayed unclear ascending trends driven by the introduction of exotic species having distinct functional traits than natives. Taxonomic distinctness indices exhibited an increase of the average taxonomic distinctness (Delta(+)), but a decrease of the variation in taxonomic distinctness (Lambda(+)) through time. Structural, functional and distinctness indices providing complementary information on ecosystem degradation, we here proposed a new multifaceted degradation index integrating these three facets of biodiversity. Such an index provided an accurate representation of the faunistic changes experienced by Lake Erhai and might constitute a comprehensive way to measure ecosystem degradation through exotic fish species introductions and native fish species extirpations. (C) 2015 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordExotic Species Richness Functional Diversity Isolated Lake Freshwater Fish Endemism
DOI10.1016/j.ecolind.2015.05.040
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Environmental Sciences
WOS KeywordASSESS ANTHROPOGENIC IMPACTS ; TAXONOMIC DISTINCTNESS ; FUNCTIONAL DIVERSITY ; COMMUNITY ECOLOGY ; BIODIVERSITY ; WATER ; CONSERVATION ; QUALITY ; RICHNESS ; INDEXES
WOS IDWOS:000360776100012
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27167
Collection水生生物多样性与资源保护研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei Province, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Univ Toulouse 3, Lab Evolut & Diversite Biol, UMR5174 EDB, CNRS,ENFA, F-31062 Toulouse, France
Recommended Citation
GB/T 7714
Jiang, Zhong-Guan,Brosse, Sebastien,Jiang, Xiao-Ming,et al. Measuring ecosystem degradation through half a century of fish species introductions and extirpations in a large isolated lake[J]. ECOLOGICAL INDICATORS,2015,58:104-112.
APA Jiang, Zhong-Guan,Brosse, Sebastien,Jiang, Xiao-Ming,&Zhang, E..(2015).Measuring ecosystem degradation through half a century of fish species introductions and extirpations in a large isolated lake.ECOLOGICAL INDICATORS,58,104-112.
MLA Jiang, Zhong-Guan,et al."Measuring ecosystem degradation through half a century of fish species introductions and extirpations in a large isolated lake".ECOLOGICAL INDICATORS 58(2015):104-112.
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