Shortnose gar (Lepisosteus platostomus) foraging on periodical cicadas (Magicicada spp.): Territorial defense of profitable pool positions

Authors
Vokoun, JC
Citation
Jc. Vokoun, Shortnose gar (Lepisosteus platostomus) foraging on periodical cicadas (Magicicada spp.): Territorial defense of profitable pool positions, AM MIDL NAT, 143(1), 2000, pp. 261-265
Citations number
21
Categorie Soggetti
Environment/Ecology
Journal title
AMERICAN MIDLAND NATURALIST
ISSN journal
00030031 → ACNP
Volume
143
Issue
1
Year of publication
2000
Pages
261 - 265
Database
ISI
SICI code
0003-0031(200001)143:1<261:SG(PFO>2.0.ZU;2-Z
Abstract
Shortnose gar foraged on spent periodical cicadas floating on the surface d uring a mass coemergence of 13- and 17-y broods. The largest gar in each po ol of an observed stream reach was positioned at the upstream pool lip. Amb ient cicada drift was observed and increased feeding trials were used to in vestigate 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.