Seasonal growth of free-ranging Gila Monsters (Heloderma suspectum) in a Southern Arizona population

Jeffrey J. Smith, Melissa Amarello, Matthew J Goode

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We fit asymptotic models to growth data of free-ranging Gila Monsters studied near Tucson, Arizona. We used a mixed-effects modeling procedure that allows for unequal numbers of recaptures by accounting for within-individual covariance and models between-individual variation in growth parameters as random effects. A model selection procedure and diagnostic tests indicated that a von Bertalanffy curve with seasonal cessation of growth and a random effect for asymptotic size fit the data best. Young Gila Monsters in our study grew faster than previously reported growth rates from both field and captive animals, and we discuss potential reasons for this discrepancy.

Original languageEnglish (US)
Pages (from-to)484-488
Number of pages5
JournalJournal of Herpetology
Volume44
Issue number3
DOIs
StatePublished - Sep 2010

Fingerprint

seasonal growth
individual variation
captive animals
diagnostic techniques
animal
modeling
Heloderma suspectum
effect

ASJC Scopus subject areas

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

Cite this

Seasonal growth of free-ranging Gila Monsters (Heloderma suspectum) in a Southern Arizona population. / Smith, Jeffrey J.; Amarello, Melissa; Goode, Matthew J.

In: Journal of Herpetology, Vol. 44, No. 3, 09.2010, p. 484-488.

Research output: Contribution to journalArticle

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