BIO120H1 Lecture Notes - Lecture 3: Anemophily, Daniel H. Janzen, Temperate Climate
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BIO120H1 Full Course Notes
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Bio120: what darwin saw: a geographical perspective on biodiversity and. Always wanted naturalist on board to collect biological and geological material. Observations of fossils, geographical distribution of plants and animals, and flora and fauna of oceanic islands (biogeography) Oak woodland in england, near where darwin grew up. Very high species diversity of plant and animal groups compared with temperate zone, forests very rich. Many more biotic interactions, especially coevolved mutualisms between plants and animals. Year-round warmth results in rapid growth of insect and microbial populations, pest and disease pressures on plants more intense. Challenges for organisms living in tropical environments tend to be biotic vs. abiotic (e. g. temperature and weather) More warmth, more life cycles, build up of microorganisms (pests, diseases) Life cycles turn over much faster, more opportunity for evolution. In the tropics, that family is dominated by trees, often mass flower. The individual in the same species that the plant will mate with could be 1km away.
