This species nests throughout the year in the moist tropics, elsewhere it is a more seasonal breeder with a peak in breeding coinciding with the onset of the rainy season.
32.
Seasonal breeders are distinct from opportunistic breeders, that mate whenever the conditions of their environment become favorable, and continuous breeders, like humans, that mate year-round.
33.
These monkeys are seasonal breeders, breeding during the April to June months ( October and November in the Nyes area North West of Thies ), during which rainfall is the heaviest.
34.
Hence, seasonal breeders can be divided into groups based on fertility period . " Long day " breeders cycle when days get longer ( spring ) and are in anestrus in fall and winter.
35.
Thus, they are distinct from seasonal breeders that rely on changes in day length to induce entry into estrus and to cue mating, and continuous breeders like humans that can mate year-round.
36.
Like all other lemurs, the silky sifaka is a seasonal breeder, and it is thought that it mates only one day a year during the start of the rainy season sometime in December or January.
37.
The " Eos " lories are apparently seasonal breeders, with birds prospecting for nesting sites varying by species, having been observed in June and July in the black-winged lory but August and September in the red lory.
