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Lecture

EOSC 326 Video Notes.docx


Department
Earth and Ocean Sciences
Course Code
EOSC 326
Professor
Louise Longridge

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VIDEOS
CARIBBEAN CORAL REEF BIOLOGY AND
ECOLOGY
a) segment A, 0:00 1:51
1. What forms the massive structure that is the base of this Caribbean modern coral reef?
*Limestone & calcium carbonate skeleton produced by corals
2. What are the conditions under which corals in the reef grow best?
*Shallow, tropical waters. Temp warm, nutrients scarce, sedimentation rates low
3. Why do coral morphologies differ on a reef?
*In response to wave strength, sedimentation and amount of sunlight.
4. Where in the reef are flat corals found?
*Deeper parts (fore reef), ideal for collecting sunlight
5. Where are massive and branching corals found?
*Back reef, where light is abundant and sedimentation is high
b) segment B, 2:50 3:24
1. What is the benefit of a coral having a massive or branching shape?
*Allows sediments to be removed more easily.
2. Where are encrusting corals found? Why can they survive there?
*Encrusting corals can cement themselves tightly to reef to withstand breaking waves in
reef crest.
http://www.youtube.com/watch?v=krBveuIjiRk
MODULE D
Hawaii: Hawaiian Hoary Bat, only native land mammal endemic to Hawaiian Islands
Video Study Questions:
1. How far are the Galapagos Islands from the South American mainland?
*600 miles
2. What enabled the iguanas to diverge once they reached the Galapagos Islands?
*The fact that there were several islands. Allopatric speciation (geographic
isolation then genetic isolation)
3. Which type of iguanas first colonized the Galapagos Islands?
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