Sperm swallow contest

Description:However, through co-option the nest may also have ornamental functions advertising both direct and indirect benefits Jones and Reynolds, ; Soler et al. Furthermore, UVR males tended to guard their mates more closely and lose more paternity in their own brood than C males did. Differences in nest attributes between the two males were noted. Thereafter, a vial with a sneaker male was placed in front of one of the nests, an empty vial was placed in front of the other, and a vial with a female was placed in the middle. Traits assessed during mate choice that affect mating decisions are referred to as cues, and different cues can be used sequentially if they work at different distances Candolin, Multiply mated females have larger broods after a shorter gestation period, and the offspring show more developed antipredator skills and schooling behavior, compared to singly mated females Evans and Magurran, We now know, however, that sperm are extremely diverse in size and shape, so their evolution may be more complicated than a simple drive to maximize numbers.

Views: 6131 Date: 2018-11-06 Favorited: 14