Ontogenetic differences in the spatial ecology of immature Komodo dragons

M. J. Imansyah, T. S. Jessop, C. Ciofi, Zubaid Akbar Mukhtar Ahmad

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The early life-history stages of reptiles are extremely important to an individual's fitness, but in an ecological sense, among the most difficult to observe. Here, we used radio-tracking techniques to describe the differences in movement patterns, habitat use and home range between hatchling and juvenile Komodo dragons Varanus komodoensis on Komodo Island, Indonesia. The movement of hatchlings from their nests was largely linear and suggested a natal dispersal event. The movement patterns of juvenile Komodo dragons exhibited a greater spatial overlap than hatchlings, indicating greater site fidelity and thus use of a more defined activity area. The rates of daily movement were significantly less for hatchlings compared with juvenile dragons. The activity areas of hatchlings were significantly smaller than juvenile dragons. Both age classes preferred utilizing dry monsoon forest compared with other habitat types. Hatchlings were predominantly arboreal compared with juveniles and the degree of arboreal activity was strongly correlated with an individual's size. These distinct differences in spatial ecology between immature life-history stages suggest that different selection pressures may affect different size classes of Komodo dragons.

Original languageEnglish
Pages (from-to)107-115
Number of pages9
JournalJournal of Zoology
Volume274
Issue number2
DOIs
Publication statusPublished - Feb 2008

Fingerprint

immatures
ecology
life history
natal dispersal
site fidelity
philopatry
habitats
home range
age class
reptile
habitat use
habitat type
radio
reptiles
age structure
Indonesia
nest
monsoon
fitness
nests

Keywords

  • Activity
  • Habitat use
  • Movement
  • Ontogenetic differences
  • Spatial ecology
  • Varanus komodoensis

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Imansyah, M. J., Jessop, T. S., Ciofi, C., & Mukhtar Ahmad, Z. A. (2008). Ontogenetic differences in the spatial ecology of immature Komodo dragons. Journal of Zoology, 274(2), 107-115. https://doi.org/10.1111/j.1469-7998.2007.00368.x

Ontogenetic differences in the spatial ecology of immature Komodo dragons. / Imansyah, M. J.; Jessop, T. S.; Ciofi, C.; Mukhtar Ahmad, Zubaid Akbar.

In: Journal of Zoology, Vol. 274, No. 2, 02.2008, p. 107-115.

Research output: Contribution to journalArticle

Imansyah, MJ, Jessop, TS, Ciofi, C & Mukhtar Ahmad, ZA 2008, 'Ontogenetic differences in the spatial ecology of immature Komodo dragons', Journal of Zoology, vol. 274, no. 2, pp. 107-115. https://doi.org/10.1111/j.1469-7998.2007.00368.x
Imansyah, M. J. ; Jessop, T. S. ; Ciofi, C. ; Mukhtar Ahmad, Zubaid Akbar. / Ontogenetic differences in the spatial ecology of immature Komodo dragons. In: Journal of Zoology. 2008 ; Vol. 274, No. 2. pp. 107-115.
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