Life history flexibility of Drunella submontana Brodsky, 1930 (Ephemeroptera: Ephemerellidae) along altitude gradients in Shennongjia National Park, China,Aquatic Insects

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Life history flexibility of Drunella submontana Brodsky, 1930 (Ephemeroptera: Ephemerellidae) along altitude gradients in Shennongjia National Park, China
Aquatic Insects ( IF 0.8 ) Pub Date : 2020-01-02 , DOI: 10.1080/01650424.2019.1708405
Xian-Fu Li _{1,

2,

3,

4,

5} , Lu Tan ₁ , Hua Du ₆ , Shu-Dan Li _{1,

7} , Shu-Han Guo _{1,

7} , Jia-Yong Mo ₈ , Zhi-Qi Zhang ₈ , Xiao-Li Tong ₉ , Qing-Hua Cai ₁

Affiliation

State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, PR China;
Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan, PR China;
Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali University, Dali, PR China;
The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali, Yunnan, PR China;
Department on Er’hai Catchment Conservation and Sustainable Development, The Key Laboratory of Yunnan Education, Dali, Yunnan, PR China;
School of Environmental Studies, China University Of Geosciences, Wuhan, PR China;
University of Chinese Academy of Sciences, Beijing, PR China;
Shennongjia National Park Administration, Shennongjia, PR China;
Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, PR China

Abstract We investigated the life history of Drunella submontana Brodsky, 1930 using the size-frequency method at four sites at different altitudes (from 590 m to 2180 m) in Shennongjia National Park, Central China. Monthly samples of larvae were taken over a two-year period (May 2015–April 2017). Drunella submontana was considered exhibit three overlapping life cycle types: univoltinism with a short egg stage, univoltinism with a long egg stage and semivoltinism. Under diverse climatic habitats in the river ecosystem in Shennongjia National Park, some physicochemical parameters (such as temperature, conductivity, salinity, total dissolved solids and pH) of water showed significantly differences, and the developmental time of D. submontana prolongated from low to high altitudes. High larva density and the short egg stage appeared in middle altitude.

更新日期：2020-01-02

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