the Survival to Maturity hypothesis may help explain the adaptive significance of temperature-dependent sex determination in reptiles: a strong inference approach

The Charnov-Bull hypothesis is the leading explanation for the evolution of temperature-dependent sex determination (TSD), a form of environmental sex determination. Charnov-Bull suggests a sex-by-incubation temperature interaction on fitness, thereby matching offspring sex to the appropriate thermal conditions. Although the Charnov-Bull hypothesis is widely accepted, there is no general explanation for how the sex-by-temperature interaction arises. Two competing explanations for the interaction lie in the Survival to Maturity hypothesis (SM) and the Trivers-Willard extension (TW). Under SM, differences in age at maturity between the sexes lead to a sex-by-temperature interaction, while TW suggests that the interaction lies in sex-specific differences in the sensitivity of fitness to condition (general health, vigor). Importantly, in a system where females mature later than males, as in the painted turtle (Chyrsemys picta), SM and TW generate opposite predictions for the effect of incub..., Painted turtle eggs were collected from Algonquin Provincial Park and incubated under two temperature regimes. The following year, individuals were released into their natal pond with unique identifiers painted on their back. Researchers returned every two weeks to the pond and sampled for individuals following a capture-mark-recapture methodology., , # The Survival to Maturity hypothesis may help explain the adaptive significance of temperature-dependent sex determination in reptiles: a strong inference approach

Data is from a mark-recapture study of painted turtle hatchlings in their natal pond. Eggs were collected in 2021 and incubated under two different temperature regimes. Hatchlings were kept in the laboratory overwinter and then released the following spring (2022). Researchers conducted sampling every two weeks (sampling occasion) for two days each time (sampling day). On capture, individuals had their midline carapace length and carapace height measured, then were immediately released.

The raw capture data is contained in \"IndividualCaptures.csv\". This contains one record per individual captured per sampling day.

The date of the sampling day (Date), the sampling occasion (Occasion), sampling day (Day), individual ID (ID), midline carapace length in mm (CL), and carapace height in mm (CH) are noted for each record.

Missi...