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Swimming and pregnancy in Tiger snakes, Notechis scutatus
| Content Provider | Semantic Scholar |
|---|---|
| Author | Aubret, Fabien Bonnet, Xavier Shine, Richard Maumelat, Stéphanie |
| Copyright Year | 2005 |
| Abstract | Reduced locomotor ability may increase susceptibility to predation and hence may represent a proximate mechanism by which “costs” of reproduction are expressed (Shine, 1980). In squamate reptiles, many examples of such effects have been documented, where non-gravid females and/or males showed higher survival rates than gravid females (Shine, 1980; Andren, 1982, 1985; Madsen, 1987). For instance, pregnancy may entail a reduction in locomotor performances in lizards and snakes (Shine, 1980; Shine, 2003; Bauwens and Thoen, 1981; Garland and Else, 1987; Seigel et al., 1987), including decreased burst speed by 12 to 30%, and endurance by 52 to 55%. Because fleeing from predators or foraging ability depends on speed and/or stamina, reduced locomotor performance resulting from carrying offspring may result in increased risk of predation and/or decreased energy intake compared to non-gravid females. However, less clear is the effect of pregnancy on aquatic locomotion. Many snakes inhabit aquatic environments such as rivers, lakes, swamps, mangroves, or oceans (Voris and Jayne, 1979; Voris and Karns, 1996; Jayne et al., 1988; Shine and Shetty, 2001) and may rely on water for feeding, and/or as an escape route from predators (such as sharks for sea kraits; Weatherhead and Robertson, 1992; |
| Starting Page | 396 |
| Ending Page | 400 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1163/156853805774408559 |
| Volume Number | 26 |
| Alternate Webpage(s) | http://sydney.edu.au/science/biology/shine/publications/reprints_legal/445swimming.pdf |
| Alternate Webpage(s) | https://brill.com/previewpdf/journals/amre/26/3/article-p396_16.xml |
| Alternate Webpage(s) | http://www.cebc.cnrs.fr/publipdf/2005/AAR26.pdf |
| Alternate Webpage(s) | https://doi.org/10.1163/156853805774408559 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
