Literaturdatenbank
Literaturdatenbank |
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Cotter, J. T., & Sheil, C. A. (2014). Hatchling sex ratios and locomotor performance of midland painted turtles (chrysemys picta marginata). Journal of North American Herpetology, 2014(1), 3–6.
Added by: Sarina Wunderlich (06 Jul 2014 16:10:37 UTC) |
| Resource type: Journal Article BibTeX citation key: Cotter2014 View all bibliographic details  |
Categories: General Keywords: Cuora zhoui, Geoemydidae, Habitat - habitat, Nordamerika - North America, Schildkröten - turtles + tortoises, Zeitigung - incubation Creators: Cotter, Sheil Collection: Journal of North American Herpetology |
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| URLs http://jnah.cnah.org/default.aspx |
| Abstract |
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The primary objectives of this study were to understand how canopy cover and nest temperatures affect hatchling sex ratios and locomotor performance (i.e., swimming sprint speed and righting response) of Chrysemys picta marginata nests. Seventeen nests were monitored with temperature data-loggers during the 2009 nesting season and found to contain 100% male-biased clutches with a mean nest temperature range of 20.0–24.0°C during the thermosensitive period (TSP). The percentage of canopy cover over each nest was inversely and significantly correlated with mean nest temperatures experienced during the TSP. Mean nest temperatures (MNT) did not have a statistical effect on either measure of locomotor performance; however, there was an observed trend toward increased performance with increased MNT.
Added by: Sarina Wunderlich |