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13 – Sexual Selection and Sperm Competition in Reptiles
The chapter describes the traits, which determine male reproductive success in reptiles, and ongoing sexual selection on such traits arising from variance in mating success. It also investigatesExpand
Major histocompatibility complex and mate choice in sand lizards
Data on free-ranging lizards suggest that associations between males and females are nonrandom with respect to MHC genotype, however, male spatial distribution and mobility during the mating season suggest that the non-random pairing process in the wild may also be driven by corresponding genetic benefits to males pairing with less related females. Expand
Conservation biology: Restoration of an inbred adder population
It is shown that the introduction of new genes into a severely inbred and isolated population of adders (Vipera berus) halted its precipitous decline towards extinction and expanded the population dramatically. Expand
Testosterone, ticks and travels: a test of the immunocompetence-handicap hypothesis in free-ranging male sand lizards
It is demonstrated in a field experiment that male sand lizards exposed to elevated testosterone suffered from increased mass loss and tick load compared to control males, and the increased parasite load was statistically independent of the loss in body condition and is likely to be due to compromised immune function. Expand
Life history consequences of nest-site variation in tropical pythons (Liasis fuscus)
Nest-site selection is a phenotypically plastic character, which although superficially trivial, engenders significant microgeographic variation in a wide range of life history traits. Expand
Why do female adders copulate so frequently?
These field studies on Swedish adders provide the first empirical evidence that multiple copulations, with different partners each time, increase offspring viability. Expand
High Prevalence of Hepatozoon Spp. (Apicomplexa, Hepatozoidae) Infection in Water Pythons (Liasis fuscus) From Tropical Australia
The nucleotide sequences of blood parasites in 4 other reptile taxa commonly encountered in the study area were identical, suggesting that the parasite is capable of infecting hosts at different taxonomic levels. Expand
Silver spoons and snake body sizes: prey availability early in life influences long-term growth rates of free-ranging pythons
These pythons displayed a strong ‘silver spoon’ effect, whereby favourable conditions in the first year of life exerted a long-term effect on growth trajectories and thus, adult body sizes, which were strongest in the faster-growing sex (females). Expand