Coexisting invasive gobies reveal no evidence for temporal and trophic niche differentiation in the sublittoral habitat of Lake Erhai, China

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	Coexisting invasive gobies reveal no evidence for temporal and trophic niche differentiation in the sublittoral habitat of Lake Erhai, China
	Guo, Zhiqiang 1,2,3,4; Liu, Jiashou 1; Lek, Sovan 1,2; Li, Zhongjie 1; Zhu, Fengyue 1; Tang, Jianfeng 1; Britton, Robert 4; Cucherousset, Julien 2
刊名	ECOLOGY OF FRESHWATER FISH
	2017
卷号	26 期号:1 页码:42-52
关键词	gobies ecological niche diel activity feeding rhythm niche differentiation
ISSN号	0906-6691
英文摘要	Niche differentiation facilitates the coexistence of species within a community through avoidance of competition via mechanisms involving spatial, temporal and/or trophic dimensions. Where invasive species coexist in their non-native range, niche differentiation could allow their persistence at higher levels of abundance. Here, we tested whether there was temporal and/or trophic niche differentiation between two congeneric invasive goby species (Rhinogobius cliffordpopei and Rhinogobius giurinus) in the sublittoral habitat of Lake Erhai (south-west China) through quantifying their diel and seasonal rhythm of locomotion activities, feeding activities and diet composition. Both species displayed two similar diel peaks in activity and two main feeding periods (6:00-10:00 and 18:00-22:00), with rhythms of locomotion and feeding activity not differing significantly between the species in each season. Their diets had a high degree of overlap, being primarily composed of macrozooplankton, aquatic insects and shrimp larvae, with no diel changes across the seasons. Thus, in this habitat, there was no clear temporal or trophic niche differentiation between the invasive congeners, indicating their coexistence with high temporal and trophic overlap. In conjunction with data from the littoral and profundal habitats, the gobies revealed different strategies across the habitats (e.g. spatial segregation, trophic niche differentiation) that minimised their competitive interactions and promoted their coexistence. This suggests that the interactions of invasive fishes during the integration into native communities can be context dependent, varying according to factors including habitat and the availability of food resources.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Fisheries ; Marine & Freshwater Biology
研究领域[WOS]	Fisheries ; Marine & Freshwater Biology
关键词[WOS]	ONTOGENIC DIET SHIFT ; SALMON SALMO-SALAR ; INTERSPECIFIC COMPETITION ; SPECIES PISCES ; LITTORAL-ZONE ; RIVER DANUBE ; SMALL FISHES ; BROWN TROUT ; PATTERNS ; RESOURCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000390137700004
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/28762]
专题	水生生物研究所_淡水生态学研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Univ Toulouse III Paul Sabatier, CNRS, EDB UMR5174, ENFA,Lab Evolut & Diversite Biol, Toulouse, France 3.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou, Guangdong, Peoples R China 4.Bournemouth Univ, Fac Sci & Technol, Dept Life & Environm Sci, Ctr Conservat Ecol & Environm Change, Bournemouth, Dorset, England
推荐引用方式 GB/T 7714	Guo, Zhiqiang,Liu, Jiashou,Lek, Sovan,et al. Coexisting invasive gobies reveal no evidence for temporal and trophic niche differentiation in the sublittoral habitat of Lake Erhai, China[J]. ECOLOGY OF FRESHWATER FISH,2017,26(1):42-52.
APA	Guo, Zhiqiang.,Liu, Jiashou.,Lek, Sovan.,Li, Zhongjie.,Zhu, Fengyue.,...&Cucherousset, Julien.(2017).Coexisting invasive gobies reveal no evidence for temporal and trophic niche differentiation in the sublittoral habitat of Lake Erhai, China.ECOLOGY OF FRESHWATER FISH,26(1),42-52.
MLA	Guo, Zhiqiang,et al."Coexisting invasive gobies reveal no evidence for temporal and trophic niche differentiation in the sublittoral habitat of Lake Erhai, China".ECOLOGY OF FRESHWATER FISH 26.1(2017):42-52.