cichlid;
Lake Malawi;
mate choice;
Pseudotropheus;
sexual selection;
D O I:
10.1006/jfbi.2001.1679
中图分类号:
S9 [水产、渔业];
学科分类号:
0908 ;
摘要:
Gravid female Malawian Pseudotropheus cichlids spent significantly more time with males that they subsequently chose as mates, indicating that time spent near a male is a valid and accurate method of measuring female preference. Further-more, females preferred to mate with males that had longer pelvic fins and a larger number of eggspots on their anal fins. In some instances, females chose to mate with both of the males with which they were presented, possibly because they were unable to discriminate between them. (C) 2001 The Fisheries Society of the British Isles.