Sierra Nevada Aquatic Research Laboratory

16 Jul, 08 AM - 12 Aug, 02 AM

My project attempts to understand factors preventing recovery of H. shoshone in lakes it had inhabited before the introduction of non-native fish species. H. shoshone is less resilient than co-occurring species and I hypothesize that its recovery is limited by the Allee effect (decreased population growth at low population density). The hypothesized mechanism for the Allee effect is mate limitation caused by low probability of finding a mate at low population density. A whole lake reintroduction experiment is underway to determine the relationship between population density and population recovery. The ability to experimentally test the Allee effect in H. shoshone has potential to increase understanding of the wider implications of the Allee effect for reintroduced or small populations of many species. The summer of 2006 will provide crucial information on the success or failure of the experimentally reintroduced populations.

Visit #9313 @Sierra Nevada Aquatic Research Laboratory

Approved

Under Project # 6381 | Research

Limitations to recovery of H. shoshone

graduate_student - Michigan State University

Reservation Members(s)

Andrew Kramer Jul 16 - Aug 12, 2006 (28 days)

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Q2 1 Jul 16 - Aug 12, 2006