Climate change is currently posing a threat to seasonal breeders. As springs arrive earlier, the "peak food" period is shifting. If an animal’s internal clock (triggered by light) doesn't match the environment (triggered by temperature), a occurs. This can lead to situations where babies are born after the best food has already disappeared, leading to population declines. Conclusion
Many seasonal breeders (like wildebeests or deer) give birth within the same few weeks. This "synchrony" produces so many young at once that local predators cannot possibly eat them all, ensuring more individuals survive to adulthood. Exceptions and Adaptations seasonal breeders
The GnRH System of Seasonal Breeders: Anatomy and Plasticity Climate change is currently posing a threat to
This is the million-dollar question. Humans are generally considered (non-seasonal). We can conceive and give birth in any month. This can lead to situations where babies are
An animal can’t read a calendar, so it relies on the most consistent timekeeper on Earth: (the length of daylight).
In tropical or arid regions where day length doesn't change much, breeding is often triggered by the onset of the rainy season.
While the benefits are clear—offspring survival—the costs are immense. Seasonal breeding requires intense physiological preparation.