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Multiennial Reproduction in Females of a Viviparous, Temperate-zone Skink, Tiliqua nigrolutea


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Edwards, A, Jones, SM and Wapstra, E 2002 , 'Multiennial Reproduction in Females of a Viviparous, Temperate-zone Skink, Tiliqua nigrolutea' , Herpetologica, vol. 58, No. 4 , pp. 407-414 .

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Reproductive frequency in captive and wild-caught female of Tiliqua nigrolutea was examined over five consecutive reproductive seasons. Reproductive frequency (0.38 +/- 0.035) was clearly different from an annual pattern of 1.0 (i.e. all females reproducing every year). Individual females did not reproduce every year, but "skipped" seasons were staggered such that a proportion of the population produced a clutch each season. Skipped reproductive opportunities are attributed to a combination of a long gestation, high relative clutch mass (0.43 +/- 0.034), parturition late in the active season, a cessation of feeding in the latter stages of gestation and low autumn temperatures limiting post-partum feeding opportunities.

Item Type: Article
Authors/Creators:Edwards, A and Jones, SM and Wapstra, E
Keywords: Lizard; Multiennial cycle; Relative clutch mass; Reproductive frequency; Skink; Temperate-zone; Tiliqua nigrolutea, Viviparous
Journal or Publication Title: Herpetologica
ISSN: 0018-0831
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