Common Chuckwalla (Sauromalus ater) in an urban preserve: Persistence of a small population and estimation of longevity

Brian Sullivan, Keith O. Sullivan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Field studies of amphibians and reptiles rarely span more than two or three years necessitating that inferences concerning population biology of many forms are derived from brief snap-shots of their life history. In 2011 we resurveyed one small population of the Common Chuckwalla (Sauromalus ater) in the Lookout Mountain Preserve in the Phoenix Metropolitan region studied intensively during the 1990s. Extending prior work with this low density population, we assessed current population size by direct count and in relation to variation in abundance in previous years. Recaptures separated by 12-16 years confirmed prior short-term studies indicating that S. ater exhibit growth rates of 1-2 mm per year as adults. Moreover, two females, initially captured in 1995, still resided within 20 m of their original capture sites in 2011. Overall, this urbanized population of Sauromalus ater persists in spite of its small size, increases in recreational activity, trail establishment, and heat island effects associated with the Phoenix Metropolitan region.

Original languageEnglish (US)
Pages (from-to)437-441
Number of pages5
JournalHerpetological Conservation and Biology
Volume7
Issue number3
StatePublished - Dec 2012

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preserves
persistence
recreational activity
heat island
reptile
amphibian
population size
population density
life history
recreation
reptiles
mountain
amphibians
mountains
Biological Sciences
preserve
Sauromalus
field study
effect

Keywords

  • Growth
  • Longevity
  • Preserves
  • Reptile conservation
  • Stability
  • Urbanization

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Common Chuckwalla (Sauromalus ater) in an urban preserve : Persistence of a small population and estimation of longevity. / Sullivan, Brian; Sullivan, Keith O.

In: Herpetological Conservation and Biology, Vol. 7, No. 3, 12.2012, p. 437-441.

Research output: Contribution to journalArticle

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