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Linking environmental factors, life history and population density in the endangered freshwater snail Margarya melanioides (Viviparidae) in Lake Dianchi, China
Song, Zhuoyan1,2; Zhang, Junqian1; Jiang, Xiaoming1; Xie, Zhicai1
Corresponding AuthorXie, Zhicai(zhcxie@ihb.ac.cn)
2017-08-01
Source PublicationJOURNAL OF MOLLUSCAN STUDIES
ISSN0260-1230
Volume83Pages:261-269
AbstractUnderstanding how environmental changes affect life-history traits is important for predicting population dynamics of a species. As one of the most pervasive forms of environmental changes in freshwater systems, eutrophication can change life-history traits of freshwater animals through density-dependent/independent processes. However, empirical evidence remains scarce regarding the mechanisms by which eutrophication influences life-history traits. We conducted a field study linking eutrophication, life-history traits and population density in a population of Margarya melanioides in Lake Dianchi, the largest lake of the Yun-Gui plateau in China and the most eutrophicated by humans, over 14 months in 2009-2010. We estimated key life-history traits (growth and reproduction) of M. melanioides in 2009-2010. Then, by comparing some life-history traits with those recorded in 1931-1933 (when the extent of eutrophication was comparatively low), we found that this snail had increased its fecundity (from 1.07 to 4.24 offspring/brood-bearing female) and the proportion of females with broods (23.6 to 77.4%), decreased its body size (54.2 to 47.6 mm) and the threshold size for reproduction (46 to 35 mm), and distorted its female/male sex ratio (1.6:1 to 0.97:1). These findings suggest that M. melanioides has adapted some life-history traits in response to intensified eutrophication. A structural equation model indicated that eutrophication influenced the reproduction of this snail through two related but opposing pathways: primarily by decreasing its population size to reduce its reproduction and secondarily by directly promoting its reproduction. Our results not only support the significance of eutrophication in determination of life-history traits of freshwater animals, but also suggest that density-dependent effects on reproduction may be stronger than direct environmental influences when population size is small.
DOI10.1093/mollus/eyx024
Funding OrganizationSpecial S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants
Indexed BySCI ; SCI
Language英语
Funding ProjectSpecial S&T Project on Treatment and Control of Water Pollution[2013ZX07102-005] ; National Natural Science Foundation of China[31302191] ; National Natural Science Foundation of China[41571495] ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants[2013FB06]
WOS Research AreaMarine & Freshwater Biology ; Zoology
WOS SubjectMarine & Freshwater Biology ; Zoology
WOS IDWOS:000407179900002
WOS KeywordPHENOTYPIC PLASTICITY ; PLATEAU LAKE ; EUTROPHICATION ; CONSERVATION ; COMMUNITY ; FISH ; REPRODUCTION ; BIODIVERSITY ; ECOSYSTEMS ; CHALLENGES
PublisherOXFORD UNIV PRESS
Funding OrganizationSpecial S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; Special S&T Project on Treatment and Control of Water Pollution ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; Special Foundation for Biodiversity Conservation of China's Ministry of Environmental Protection ; FEBL research grants ; FEBL research grants ; FEBL research grants ; FEBL research grants
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/31392
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorXie, Zhicai
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China
2.Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada
Recommended Citation
GB/T 7714
Song, Zhuoyan,Zhang, Junqian,Jiang, Xiaoming,et al. Linking environmental factors, life history and population density in the endangered freshwater snail Margarya melanioides (Viviparidae) in Lake Dianchi, China[J]. JOURNAL OF MOLLUSCAN STUDIES,2017,83:261-269.
APA Song, Zhuoyan,Zhang, Junqian,Jiang, Xiaoming,&Xie, Zhicai.(2017).Linking environmental factors, life history and population density in the endangered freshwater snail Margarya melanioides (Viviparidae) in Lake Dianchi, China.JOURNAL OF MOLLUSCAN STUDIES,83,261-269.
MLA Song, Zhuoyan,et al."Linking environmental factors, life history and population density in the endangered freshwater snail Margarya melanioides (Viviparidae) in Lake Dianchi, China".JOURNAL OF MOLLUSCAN STUDIES 83(2017):261-269.
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