BIO 200 Lecture Notes - Lecture 26: Temperate Forest, Convergent Evolution, Permafrost
22 Dec 2016
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*explains why a certain habitat type is recognizable to us even if the species that live there are very different. Costa rican rainforest and singapore rainforest: temperature and precipitation predict vegetation types. Adaptations of cactuses are present in other plants too that arent cacti (euphoro) By indep means, 2 species groups have converged to similar sets of solutions to a lifestyle problem: there are a (cid:448)ariety of (cid:374)a(cid:373)es for a(cid:374)d (cid:449)ays of (cid:374)oti(cid:374)g (cid:862)(cid:271)io(cid:373)es(cid:863) Patterns of climate(temp and rainfall) dictate the assemblage of species likey to be found in a give area. *a way to classify these assemblages into different ecosystem types which we call biomes: a quick tour of biomes. Biomes are defined by temp and rainfall, robert whiticker. Freq of fire, freq of drought cause biomes to vary. Tropical forests vary in amount of rainfall but vary little in the temp that occurs, reverse for desserts. Found in arctic and in high elev at lower latitudes (atabatic cooling)
