Literaturdatenbank
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Congdon, J. D., & Gibbons, J. W. (1983). Relationships of reproductive characteristics to body size in pseudemys scripta. Herpetologica, 39(2), 147–151.
Added by: Admin (24 Aug 2008 18:46:13 UTC) |
| Resource type: Journal Article BibTeX citation key: Congdon1983 View all bibliographic details  |
Categories: General Keywords: Emydidae, Fortpflanzung = reproduction, Habitat = habitat, Nordamerika = North America, Pseudemys, Schildkröten = turtles + tortoises, Trachemys, Trachemys scripta Creators: Congdon, Gibbons Collection: Herpetologica |
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| Abstract |
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Pseudemys scripta Trachemys Female Pseudemys scripta (n=65) with eggs were collected from three habitats where females mature at relatively large body sizes and four where females mature at relatively small body sizes. Clutch size, clutch wet mass, egg wet mass and egg width all exhibited significant positive relationships with body size of the female while egg length did not. When effects of body size were removed, no significant differences in adjusted means of clutch size, egg wet mass, or of the log of clutch mass were found between females from populations of large-bodied adults and those from populations of small-bodied adults. The relationship between clutch size and egg wet mass among populations was not significant. This study suggests that in turtle populations in which individuals exhibit rapid growth and unusually large body sizes, the proportional investment per egg or clutch remains constant.
Added by: Admin |