Diving beetles strip eel to the bone

Ebner, Brendan C., Donaldson, James A., Marshall, Jonathan, Starrs, Danswell, and Freeman, Alastair B. (2021) Diving beetles strip eel to the bone. Food Webs, 27. e00188.

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Abstract

Wetting and drying cycles are widely recognised as driving aquatic macroinvertebrate and zooplankton production, providing prey and recruitment opportunities for fish in floodplain river systems. Conversely, invertebrate consumption of fishes features less frequently in food web studies. We used two sources of information: a) the finding of an intact eel skeleton and an exceedingly high number of diving beetles (Cybister sp.) from an overnight fyke net catch, and, b) catch records of large diving beetles according to wetland type in northern Queensland, Australia, to discuss the possible role of diving beetles in tropical wetlands. We contend that wetlands with wetting and drying cycles, and notably those with floating plants such as lilies completely covering the water surface, are likely to provide seasonal arenas for diving beetles to gain advantage over gill breathing vertebrates.

Item ID: 73190
Item Type: Article (Research - C1)
ISSN: 2352-2496
Keywords: Piscivory, Scavenging, Dytiscidae, Invertebrate predator, Floodplain lakes, Ephemeral wetlands
Copyright Information: © 2021 Published by Elsevier Inc.
Date Deposited: 21 Jun 2022 03:03
FoR Codes: 31 BIOLOGICAL SCIENCES > 3103 Ecology > 310304 Freshwater ecology @ 50%
31 BIOLOGICAL SCIENCES > 3103 Ecology > 310302 Community ecology (excl. invasive species ecology) @ 30%
31 BIOLOGICAL SCIENCES > 3109 Zoology > 310913 Invertebrate biology @ 20%
SEO Codes: 18 ENVIRONMENTAL MANAGEMENT > 1803 Fresh, ground and surface water systems and management > 180303 Fresh, ground and surface water biodiversity @ 80%
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280102 Expanding knowledge in the biological sciences @ 20%
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