Survival estimation in a long-lived monitor lizard: radio-tracking of Varanus mertensi

Survival estimation in a long-lived monitor lizard: radio-tracking of Varanus mertensi

Publication TypeJournal Article
Year of Publication2010
AuthorsSmith, JG, Griffiths, AD, Brook, BW
JournalPopulation Ecology
Date PublishedJan
Type of ArticleEditorial Material
ISBN Number1438-3896
Accession NumberISI:000273166100024
KeywordsAIC, body-size, Cormack-Jolly-Seber, Density, growth, home-range, iguanas amblyrhynchus-cristatus, Known fate, life-history, marked animals, population biology, Program MARK, psammodromus-algirus, sceloporus-undulatus, uta-stansburiana, varanid

The population dynamics of varanids (large monitor lizards) is poorly understood. We report on the most detailed study to date of a population of one of Australia's largest semi-aquatic varanids, Varanus mertensi. Survival of V. mertensi was derived from known-fate modelling of radio-tracked individuals over two and a half years. We demonstrate empirically what intuition suggests; that apparent survival probability in long-lived lizards is high over short sampling periods, with body size and gender influencing these estimates. Survival estimation in long-lived species such as varanids clearly requires long-term studies.

Alternate JournalPopul. Ecol.


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