Shortnose Gar (Lepisosteus platostomus) Foraging on Periodical Cicadas (Magicicada spp.): Territorial Defense of Profitable Pool Positions

Jason C. Vokoun

doi:10.1674/0003-0031(2000)143[0261:SGLPFO]2.0.CO;2

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Jason C. Vokoun¹

¹Missouri Cooperative Fish and Wildlife Research Unit, The School of Natural Resources, University of Missouri, 302 Anheuser-Busch Natural Resources Building, Fisheries and Wildlife Sciences, Columbia, 65211–7240. Telephone(573)884-8531; FAX(573)884-5

Abstract

Shortnose gar foraged on spent periodical cicadas floating on the surface during a mass coemergence of 13- and 17-y broods. The largest gar in each pool of an observed stream reach was positioned at the upstream pool lip. Ambient cicada drift was observed and increased feeding trials were used to investigate the observed pattern. The largest gar defended the upstream pool lip from other gar in the pool and consistently consumed more cicadas than any other single gar.

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Jason C. Vokoun "Shortnose Gar (Lepisosteus platostomus) Foraging on Periodical Cicadas (Magicicada spp.): Territorial Defense of Profitable Pool Positions," The American Midland Naturalist 143(1), 261-265, (1 January 2000). https://doi.org/10.1674/0003-0031(2000)143[0261:SGLPFO]2.0.CO;2

Accepted: 1 August 1999; Published: 1 January 2000

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