Unit Two, Day 5 Adaptive Radiation

Opener Sit with your partner from last class Get out a computer, don’t open it yet Get out the worksheet and turn to your notes

Agenda Finish Allopatric and Sympatric Speciation Adaptive Radiation Exit Ticket: Speciation Scenario Speciation Posters

Homework HW: reading Chapter 26.1-26.3 Essential Question: How are phylogeny trees constructed and read?

New LT #2 I can explain the mechanisms of speciation

Web Tutorial You have 20 minutes to finish I am going to record down your score at the end

Adaptive Radiation Rapid evolution of diversely adapted species from a common ancestor when a change in environment Makes new resources available Creates new challenges for survival (selection for traits) New environmental niches for species to move into

Adaptive Radiation Happens after Mass extinctions (mammals following dinosaurs) Evolution of novel characteristics (development of 4th cusp in molars of mammals) Colonization of new habitats (Darwin’s finches)

Video on Adaptive Radiation Darwin's FInches

Exit Ticket Read the description Discuss with your group Answer questions

Speciation Posters Orcas (Killer whales) in the Pacific Northwest Each group will be responsible for creating a poster that will tell the story of a group of organisms and how they were established in their environment Count off by 7’s Orcas (Killer whales) in the Pacific Northwest Stickleback fishes in Alaska North America Apple-Maggot Fly Cichlids in Lake Victoria in Africa Medium-Ground Finches in the Galapagos (Santa Cruz Island) Hawaiian Honey-Creepers The Monkey Flower (Mimulus) Grand Canyon Kaibab Squirrel