Non-modal scute patterns, morphology, and locomotor performance of loggerhead (Caretta caretta) and flatback (Natator depressus) turtle hatchlings

Sim, Elizabeth L., Booth, David T. and Limpus, Colin J. (2014) Non-modal scute patterns, morphology, and locomotor performance of loggerhead (Caretta caretta) and flatback (Natator depressus) turtle hatchlings. Copeia, 1: 63-69. doi:10.1643/CP-13-041


Author Sim, Elizabeth L.
Booth, David T.
Limpus, Colin J.
Title Non-modal scute patterns, morphology, and locomotor performance of loggerhead (Caretta caretta) and flatback (Natator depressus) turtle hatchlings
Formatted title
Non-modal scute patterns, morphology, and locomotor performance of loggerhead (Caretta caretta) and flatback (Natator depressus) turtle hatchlings
Journal name Copeia   Check publisher's open access policy
ISSN 0045-8511
1938-5110
Publication date 2014-03-01
Year available 2014
Sub-type Article (original research)
DOI 10.1643/CP-13-041
Issue 1
Start page 63
End page 69
Total pages 7
Place of publication Miami, FL, United States
Publisher American Society of Ichthyologists and Herpetologists
Collection year 2015
Language eng
Formatted abstract
Non-modal scute patterns are observed more frequently in hatchlings than in adult sea turtles, which suggests greater survival of hatchlings with the modal scute pattern. Here we compare morphological parameters and fitness correlates of hatchlings of Caretta caretta and Natator depressus with the modal scute pattern against those with non-modal scute patterns. We found hatchlings with the modal scute pattern were larger and heavier than those with non-modal scute patterns; however, this size difference did not translate into a difference in crawling speed or self-righting ability for either species. There was also no difference in swim thrust produced by hatchlings of C. caretta over the first four hours of swimming; however, hatchlings of N. depressus with the modal pattern produced greater swim thrust during the first 40 minutes of swimming than those with non-modal scute patterns. This difference may affect the risk of predation and mortality at this early life stage.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Biological Sciences Publications
 
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