Temperature-dependent Sex Determination
Many reptiles, including sea turtles and crocodiles, exhibit temperature-dependent sex determination (TSD), where the incubation temperature of eggs determines the sex of the offspring. This phenomenon makes reptile populations highly vulnerable to climate change, as rising global temperatures can skew sex ratios, leading to reproductive failure and population decline.
- TSD is seen in species like sea turtles and crocodiles.
- Warmer temperatures typically produce more females in species like sea turtles.
- Altered sex ratios threaten reproductive success and species survival.
Impact on Habitats
Climate change leads to the destruction and alteration of reptile habitats through rising sea levels, increased frequency of extreme weather events, and shifting ecosystems. These changes result in loss of nesting sites, food sources, and suitable living conditions, further exacerbating the decline of reptile populations.
- Rising sea levels inundate coastal habitats, affecting species like sea turtles.
- Increased storms and wildfires destroy terrestrial habitats.
- Altered ecosystems disrupt food chains and species interactions.