Laboratory induced interspecific copulations between the crayfish Orconectes rusticus and O. propinquus resulted in fewer broods and fewer Stage III juveniles per brood than did intraspecific copulations. Naturally occurring interspecific copulations should therefore affect the reproductive success of both species where they coexist, and may have contributed to the recent range expansion of O. rusticus.
No takes yet. Share an insight, caveat, or question.
Michael Berrill (1985) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: