Inverse Relationship between Biting and Head Retraction in an Ontogenetic Series of Sonoran Mud Turtles (Kinosternon sonoriense)
The propensity for defensive biting in turtles should vary ontogenetically. In species with plastral kinesis, the effectiveness of retraction into the shell as a defensive mechanism increases with body size. Therefore, adults should be less likely to bite and more likely to retract than are juvenile...
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| Veröffentlicht in: | Journal of herpetology 2016-03, Vol.50 (1), p.26-28 |
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| container_title | Journal of herpetology |
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| creator | Peno, Samantha S Stanila, Brian D Stone, Marie E. B Stone, Paul A |
| description | The propensity for defensive biting in turtles should vary ontogenetically. In species with plastral kinesis, the effectiveness of retraction into the shell as a defensive mechanism increases with body size. Therefore, adults should be less likely to bite and more likely to retract than are juveniles. We tested this hypothesis by measuring biting propensity and retraction propensity from an ontogenetic series of Kinosternon sonoriense (Sonora Mud Turtle), a species with plastral kinesis. As predicted, biting in K. sonoriense was restricted to younger, smaller turtles, whereas capacity for retraction was restricted to older, larger turtles. |
| doi_str_mv | 10.1670/14-122 |
| format | Article |
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As predicted, biting in K. sonoriense was restricted to younger, smaller turtles, whereas capacity for retraction was restricted to older, larger turtles.</description><subject>adults</subject><subject>BEHAVIOR</subject><subject>Bite force</subject><subject>Body size</subject><subject>Ecological genetics</subject><subject>Inverse relationships</subject><subject>juveniles</subject><subject>Kinesis</subject><subject>ontogeny</subject><subject>Predators</subject><subject>Reptiles</subject><subject>Snapping turtles</subject><subject>Turtles</subject><subject>Young animals</subject><issn>0022-1511</issn><issn>1937-2418</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp10M1KAzEUBeAgCtaqbyBmIaKL0dwkk5kutfhTVARb10NmcqdGaiJJqrjz0U2puHMVuOdLwj2E7AM7A1Wxc5AFcL5BBjASVcEl1JtkwBjnBZQA22QnxlfGgLOqHpDvifvAEJE-4UIn6118se-0xfSJ6OilTdbNqXaG3qI2GaWguxWj1uUxfXTJz9Fhsh2dYrAYqe_p1DsfcvqwNHS2DGmRxyd31vmYMLh8Oa6ARRfxdJds9XoRce_3HJLn66vZ-La4f7yZjC_ui5aP6lQAGJAcQdR9X0mj6k4q1XMNJq8hVFlK0YleCNGWQtYGxUgoVo6MMmUrK2HEkByv3-2CjzFg37wH-6bDVwOsWfXWgGxybxkerOFrTD78KSlBSSVW-eE677Vv9DzY2DxPOQOVO60lgyqLo7VorfcO__voB363fiI</recordid><startdate>20160301</startdate><enddate>20160301</enddate><creator>Peno, Samantha S</creator><creator>Stanila, Brian D</creator><creator>Stone, Marie E. 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| ispartof | Journal of herpetology, 2016-03, Vol.50 (1), p.26-28 |
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| language | eng |
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| subjects | adults BEHAVIOR Bite force Body size Ecological genetics Inverse relationships juveniles Kinesis ontogeny Predators Reptiles Snapping turtles Turtles Young animals |
| title | Inverse Relationship between Biting and Head Retraction in an Ontogenetic Series of Sonoran Mud Turtles (Kinosternon sonoriense) |
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