Lisääntymiskausien
Lisääntymiskausien refers to the periods during the year when animals engage in reproductive activities. These seasonal patterns are widespread throughout the animal kingdom and are influenced by a variety of environmental cues. Key factors that trigger and regulate these seasons include changes in day length (photoperiod), temperature, and the availability of food resources. These environmental signals are detected by the animal's endocrine system, which then initiates physiological changes necessary for reproduction, such as the development of gonads and the production of gametes.
The timing of breeding seasons is crucial for the survival and success of offspring. Animals typically reproduce
In birds, for example, increasing day length in spring stimulates the pituitary gland, leading to increased