BIO120H1 Lecture Notes - Lecture 14: Nectar, Giant Armadillo, Temperate Climate

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12 Nov 2011
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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Lecture 14: what darwin saw: a geographical perspective on biodiversity and adaptation. In his 20s; a ship"s naturalist (cid:159) most times in south america (cid:159) observed fossils, geographical distribution of plants and animals, and flora and fauna of oceanic island. Live in oak woodland in england, characterized by low species diversity (cid:159) Very high species diversity of plant and animal groups compared with temperate zone. (cid:159) many biotic interaction, especially coevolved mutualisms between plants and animals (cid:159) Tropical forests have high species diversity and individuals of the same species are widely separated-unlikely temperate forest. Tropical forests are also largely evergreen (non-deciduous) unlike most temperate forests. Dense canopies and long-distances between trees make winds a poor agent of pollen dispersal; animals are more effective pollinators. Bee, butterfly, moths, bird and bats pollinate most tropical trees; most temperate tree wind pollinated (cid:159) (cid:159) (cid:159)

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