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Article
Identifying Sources of Error in Surveys of Devils Hole Pupfish (Cyprinodon diabolis)
The Southwestern Naturalist
  • Maria Dzul, Iowa State University
  • Michael C. Quist, Iowa State University
  • Stephen J Dinsmore, Iowa State University
  • Philip M. Dixon, Iowa State University
  • Michael R. Bower, National Park Service
  • Kevin P. Wilson, National Park Service
  • D. Bailey Gaines, National Park Service
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2012
DOI
10.1894/0038-4909-57.1.44
Abstract
We assessed four potential sources of error in estimating size of the population of Devils Hole pupfish (Cyprinodon diabolis): net, time of day, diver, and order of diver. Experimental dives (3/day) were conducted during 4 days in July 2009. Effects of the four sources of error on estimates from dive surveys were analyzed using a split-split plot ANOVA. Diver and order of diver had no significant influence on estimates, whereas the effect of presence or absence of a net was significant. Effects of time of day and presence or absence of a net showed a significant interaction with depth of water. Results indicated that pupfish may move upward during the dive, and as a result, the standard methods of dive surveys may underestimate abundance.
Comments

This is an article from The Southwestern Naturalist 57 (2012): 44, doi:10.1894/0038-4909-57.1.44. Posted with permission.

Rights
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
Language
en
File Format
application/pdf
Citation Information
Maria Dzul, Michael C. Quist, Stephen J Dinsmore, Philip M. Dixon, et al.. "Identifying Sources of Error in Surveys of Devils Hole Pupfish (Cyprinodon diabolis)" The Southwestern Naturalist Vol. 57 Iss. 1 (2012) p. 44 - 50
Available at: http://works.bepress.com/stephen_dinsmore/80/