The earth's axis of rotation wobbles like a spinning top. There are two periods (a wobble within a wobble): 19,000 AND 23,000 years. Precession has a profound effect on the earth's climate.
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Breeding
- Different among species
-Age and size determination
- Activity
- Nesting Behavior
-Population statistics: How its hard to actually figure out the number of sea turtles because young sea turtles and males donŐt come ashore.
Behavior
-Adaptations in the ocean vs. land turtles
- Sight, Hearing, Touch, Smell and Taste.
-The things that help them in the sea usually impair them on land
-Have been observed basking in the sunlight, but regularly only females make it to land for laying eggs.
-Not very social animals, like the independent solitary route until mating age and season.
- Behavior of hatchlings
Migration
-Migration habits differ among different species and even among the different groups of species. Depending on type, they can travel only a few miles up to thousands. I will focus on mainly the types I labeled above in this section since they are the ones we should see.
-People have been tracking sea turtle migration since around the 1980s.
Types: Flipper tagging, radio, sonic, and satellite tracking and a source talked about a new harness that does not physically hurt the turtle and is supposed to fall off after a few months.
Eating
These habits and food choices are based on type again.
-Herbivores
-Carnivores
Life Span
-How they try to study their ages
-Rings on back
- Following babies throughout their life
-Natural predators
- Human influence
Endangered?
-Tumors (also explained in ŇThe Enchanted BraidÓ
- Human influence
- All seven species are listed under the endangered species list
Conclusion:
1.Satellite tracking of sea turtles: Where have we
been and where do we go next?
B. J. Godley1,*, J. M. Blumenthal1, 2, A. C. Broderick1, M. S. Coyne1, 3,
M. H. Godfrey4, L. A. Hawkes1, M. J. Witt1
2. Predicting the Impact of Sea-Level Rise on Caribbean Sea Turtle Nesting Habitat Conservation Biology, Volume 19, issue 2 (April 2005), p. 482-491
3. The Ecology and Migrations of Sea Turtles, 6 The Hawksbill Turtle in the Caribbean Sea BY ARCHICE ARRH,~A ROLHDI RTHA,N~D LARRYO GREN~
4. Foraging ecology and nutrition of sea turtles
By Karen Bjornal
5. Eckert, Scott, Dean Bagley, Stacy Kubis, Llewellyn Ehrhart, Chris Johnson, Kelly Stewart, and Duane Defreese. "Internesting and Postnesting Movements and Foraging Habitats of Leatherback Sea Turtles (Dermochelys coriacea) Nesting in Florida." 5 (2007): 239-48. Academic Search Complete. 6. James, Michael, Andrea Ottensmeyer, and Myers Ransom. "Identification of high-use habitat and threats to leatherback sea turtles in northern waters: new directions for conservation." 8 (2005): 195-201. Academic Search Complete.
We also have a GUIDE for depositing articles, images, data, etc in
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to return to the Pre-Course Presentation Outline and Paper Posting Menu. Or, you can return to the course syllabus It is 11:36:41 AM on Monday, November 23, 2009. Last Update: Saturday, May 2, 2009
7. Bowen, B., and S. Karl. "Population genetics and phylogeography of sea turtles." (2007). NiPAD.
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