BIO120H1 Lecture Notes - Lecture 3: California Oak Woodland, Tropical And Subtropical Moist Broadleaf Forests, Glyptodon

32 views6 pages
School
Department
Course
shdhhfhshhpla3806 and 40102 others unlocked
BIO120H1 Full Course Notes
36
BIO120H1 Full Course Notes
Verified Note
36 documents

Document Summary

What darwin saw: a geographical perspective on biod. Darwin grew up in and oak woodland in england characterized by low species diversity. Very high species diversity of plant and animal groups compared with temperate zone. Many more biotic interactions, especially coevolved mutualisms between plants and anim. Year-round warmth results in rapid growth of insects and microbial populations. Darwin observed high species diversity and many novel adaptations (north brazil; tropic. Wind pollination was ineffective due to the large masses of trees. Tropical forests have high species diversity and individuals of the same species. Found the fossil of an giant armadillo and thought about the extinct animals. Darwin discovers strikingly different environments in which abiotic facts dominate and la. 15 main islands of volcanic origin; oldest 5-10 million years old; youngest more recent. Flora and fauna colonized by species capable of ling-distance dispersal from south ameri mainland. Distinct races and species in different islands provide evidence of early stages of speciatio.