BIO 2137 Lecture Notes - Lecture 18: Baffin Island, Plant Identification, Gulf Stream

• School: University of Ottawa
• Department: Biology
• Course: BIO 2137
• Professor: Julian Starr

Document Summary

Changes in diversity due to temperature: ehhh. But theres more to it: black mulberry plant: can survive tempatures to -196 celsius. Maybe they all stick close to the ground: the(cid:396)e a(cid:396)e t(cid:396)ees i(cid:374) the a(cid:396)(cid:272)ti(cid:272). (cid:894)se(cid:373)a(cid:374)ti(cid:272)s(cid:895) they just do(cid:374)"t get tall, little birch and willow trees. Woody t(cid:396)ees o(cid:374) (cid:271)affi(cid:374) isla(cid:374)d. the(cid:396)e"s a t(cid:396)eeli(cid:374)e and a shrubline: obviously, treeline is lower, many woody plants- tree like plants. (single axis etc, lignin takes a lot of energy to make. (fire) Obviously, (cid:449)e do(cid:374)"t ha(cid:448)e (cid:449)oody thi(cid:374)gs i(cid:374) the high (cid:374)o(cid:396)th as the(cid:396)e is(cid:374)"t (cid:373)u(cid:272)h energy there (due to earths rotation) Length of growing season: to be able to gather enough energy to g(cid:396)o(cid:449)(cid:894)espe(cid:272)ially (cid:449)ood(cid:895), (cid:396)ep(cid:396)odu(cid:272)e et(cid:272). you just do(cid:374)"t ha(cid:448)e e(cid:374)ough ti(cid:373)e. Fewer species in the north: kind of. Generally less species as you go north but theres pockets of high diversity in very northern places. This is due to water currents. (shrubline too)