BIO 1130 Lecture Notes - Lecture 27: Crane Fly, Amniote, Eukaryote

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

We all agree i(cid:374) is that spe(cid:272)ies are islated fro(cid:373) ea(cid:272)htoer so that the(cid:455) do(cid:374)"teasil(cid:455) (cid:271)reed, me(cid:272)ha(cid:374)is(cid:373)s that allow for isolation. Prezygotic isolation - prevent sperm and egg from meeting. Ecologically isolated found in two totally different locations, even though they have the potential to breed, the reality is that the ecological habitat they carved out for themselves, they just will never overlap. The polar bear used to hunt of seals and when the origionally diverger from the grizzly, they changed. Global warming happend and the polar bears move down, and then grizzlies move up. Temporal isolation - frog (5 species mate at different times of the year, midsummer v. s. early sprint) A tried to + with b , in anphibians, they are not capable of mating all year long. Because the male is(cid:374)"t produ(cid:272)i(cid:374)g sper(cid:373) at the sa(cid:373)e ti(cid:373)e that (cid:449)ere producing eggs. It may form a zygote artificially and insert sperm.