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Body size and shape are among the most important determinants of reproductive output in diverse animal taxa. We compared morphology and reproductive output between two Scincella lizards (Scincidae), Scincella modesta (oviparous) and Scincella reevesii (viviparous), to examine whether viviparous females compensate for their lower reproductive output by modifying maternal body size and/or shape. As...
Females of several lizard species modify their body temperature during pregnancy, probably in connection with the optimisation of hatchling phenotypes. We studied variations in the temperature selected by gravid females compared with those selected by males and non-gravid females in an oviparous population of Zootoca vivipara (Jacquin, 1797) (Squamata: Lacertidae) of Northern Spain and examined the...
It has been documented in the many-lined sun skink (Mabuya multifasciata) that pregnant females select lower body temperatures (27.6–30.8°C) than do nonpregnant females and adult males (29.7–35.7°C). We therefore used the skink to test the hypothesis that the maximization of reproductive benefits should be achieved in pregnant females by shifting thermal preferences towards the levels optimal for...
We studied sexual dimorphism, female reproduction and egg incubation of the oriental leaf-toed gecko (Hemidactylus bowringii) from a population in southern China. The largest male and female in our sample were 60 and 57mm snout-vent length (SVL), respectively. Males are the larger sex; sexual dimorphism in head size and tail length (TL) is evident in juveniles and adults, with males having larger...
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