2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/23/2019 | 11:45 AM - 12:00 PM | METACOMMUNITY STRUCTURING OF STREAM MACROINVERTEBRATES IN THE HENGDUAN MOUNTAINS (CHINA) | 151 G
METACOMMUNITY STRUCTURING OF STREAM MACROINVERTEBRATES IN THE HENGDUAN MOUNTAINS (CHINA)
Metacommunity structures are controlled by the interaction of the local environment and the spatial characteristics of the region. The role that local and spatial factors play in structuring the metacommunity in high mountain streams remains unclear. We aim to investigate the contribution of river connectivity in structuring high mountain stream metacommunities between 1623m and 2904m a.s.l. in the Hengduan Mountains, a global biodiversity hotspot. The streams on the west aspect of the mountain are connected by a river, while streams on the east aspect flow into a large lake. We compared the elements and types of metacommunity structure on both aspects and determined the importance of spatial distances (i.e. Euclidean distance, topographic distance, and network distance) on metacommunity structure. Additionally, we compared community dissimilarity between upstream and downstream sites, between niche groups (generalists and specialists), and between dispersal abilities (strong and weak). Understanding the metacommunity structures that underlie high mountain streams and how river connectivity impacts them may support conservation biologists and catchment managers, helping them properly predict and combat the effects of expanding human influence and climate change the Hengduan Mountains.
- Dispersal
- Network
- Invertebrate
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Presenters/Authors
Angelika Kurthen
(), Freie Universität Berlin, Berlin Germany, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany, kurthea95@zedat.fu-berlin.de;
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Fengzhi He
(), Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany & Institute of Biology, Freie Universität Berlin, Berlin, Germany & School of Geography, Queen Mary University of London, London, United Kingdom, fengzhi.he@igb-berlin.de;
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Qinghua Cai
(), State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China, qhcai@ihb.ac.cn;
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Sonja Jähnig
(), Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany, sonja.jaehnig@igb-berlin.de;
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