2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/22/2018 | 12:00 PM - 12:15 PM | BIOLOGICAL TRAITS REVEAL CONTRASTING AQUATIC INVERTEBRATE DISPERSAL STRATEGIES IN PERENNIAL AND INTERMITTENT RIVERS. | 310 B
BIOLOGICAL TRAITS REVEAL CONTRASTING AQUATIC INVERTEBRATE DISPERSAL STRATEGIES IN PERENNIAL AND INTERMITTENT RIVERS.
Dispersal is a key process in community assembly that depends on endogenous (an organism’s biological capacity) and exogenous (connectivity of habitats) factors. Contrary to perennial rivers, intermittent rivers and ephemeral streams experience loss of hydrological connectivity, which is likely to affect dispersal processes. However, little is known about the relative roles of exogenous and endogenous dispersal factors in shaping communities. We created a database compiling nine dispersal-related traits for 420 aquatic invertebrate genera from Europe and used it to assess the effect of flow intermittence on community dispersal capacity. While traits related to weak dispersal abilities were dominant in intermittent rivers, perennial rivers were colonized by organisms with large wings and long life span, indicating contrasting dispersal strategies between the two river types. Our results suggest that exogenous factors such as wind direction or topography may affect dispersal more strongly in intermittent than perennial rivers. Therefore, intermittent river communities could be particularly sensitive to spatial isolation. Further exploration of the effects of endogenous and exogenous dispersal on community assembly is needed to better predict community responses to environmental changes.
- Intermittent
- Trait
- Invertebrate
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Presenters/Authors
Romain Sarremejane
(), Nottingham Trent University, romain.sarremejane02@ntu.ac.uk;
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Nuria Bonada
(), University of Barcelona, bonada@ub.edu;
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Núria Cid
(), INRAE, nuria.cid-puey@inrae.fr;
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Miguel Cañedo-Argüelles
(), University of Barcelona, mcanedo.fem@gmail.com;
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Rachel Stubbington
(), Nottingham Trent University, rachel.stubbington@ntu.ac.uk;
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Thibault Datry
(), INRAE, France, Thibault.datry@inrae.fr;
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Jani Heino
(), Finnish Environment Institute, Jani.Heino@ymparisto.fi;
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Cayetano Gutiérrez-Cánovas
(), University of Barcelona, cayeguti@um.es.es;
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Amael Paillex
(), ECOTEC Environment SA, 1203, Geneva, Switzerland, amael.paillex@eawag.ch;
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J. Manuel Tierno de Figueroa
(), University of Granada, jmtdef@ugr.es;
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Petr Paril
(), Masaryk University, paril@sci.muni.cz;
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Adolfo Cordero-Rivera
(), University of Vigo, adolfo.cordero@uvigo.es;
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Carmen Zamora-Muñoz
(), University of Granada, czamora@ugr.es;
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Philippe Usseglio-Polatera
(), Interdisciplinary Laboratory of Continental Environments (LIEC), CNRS UMR 7360, University of Lorraine, France, philippe.usseglio-polatera@univ-lorraine.fr;
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Andrés Millán
(), Universidad de Murcia, acmillan@um.es;
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Zoltán Csabai
(), University of Pécs, Department of Hydrobiology, csabai@gamma.ttk.pte.hu;
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