BIO120H1 Lecture Notes - Lecture 22: Leslie Street Spit, Mollusca, Transect
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BIO120H1 Full Course Notes
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I(cid:374)t(cid:396)odu(cid:272)ed the flo(cid:449)e(cid:396)s, (cid:449)he(cid:374) the flo(cid:449)e(cid:396)"s s(cid:373)ell gets i(cid:374) the fu(cid:396) of tige(cid:396)s, the(cid:455) do (cid:374)ot (cid:373)ate. Cane toad native to neotropics and introduced to puerto rico and hawaii where it successfully controlled cane beetles devastating sugar cane crops. Later introduced to australia but not successful in reducing. Introduction of the nile perch to african lakes has resulted in the extinction of endemic cichlid fish species. The (cid:271)attle to p(cid:396)e(cid:448)e(cid:374)t (cid:862)asia(cid:374) ca(cid:396)p(cid:863) i(cid:374)(cid:448)adi(cid:374)g the g(cid:396)eat lakes. People wanted to eat it, so it was introduced, but have started to overtake the great lakes. The successful establishment of a species in a region not previously occupied followed by rapid range expansion. Biological invasions do not always involve harmful species but most do. Terms used to describe the origins of species. Native an indigenous species that occurs wild in a given region. Alien a species that has been introduced to a part of the world to which it is not native.
