Sea Turtles part 3. Reproduction Turtles lay eggs in nests on the beach, usually at night. They can lay up to several hundred in one nest. Many turtles.

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Presentation transcript:

Sea Turtles part 3

Reproduction

Turtles lay eggs in nests on the beach, usually at night. They can lay up to several hundred in one nest. Many turtles can create several nests over a few weeks, during the reproductive season.

Reproduction After laying all their eggs, the female turtles return to the ocean. After sixty days the baby turtles will emerge and travel to the ocean, and must defend themselves.

Conservation 1. What is making the sea turtles endangered? 2. How can we protect turtles and their habitats? 3. Problems being faced with enforcing laws. 4. What can we do?

1. What is making the sea turtle endangered? Coastal development A. Destroying nesting beaches. B. Increasing pollution in bays. C. Distracting hatchlings with light. D. Beach vehicle activity.

1. What is making the sea turtle endangered? Net & Shrimp trawls A. Entanglement and drowning. B. Used in trade for shell and meat. C. Destroying feeding grounds.

1. What is making the sea turtle endangered? Industrial development A. Sand walls preventing nesting B. Oil spills C. Damage to coral reefs and sea grass beds.

1. What is making the sea turtle endangered? Natural Mortality A. Predation as hatchlings B. Predation as juveniles and adults C. Old age

2. How can we protect the turtles and their habitat? Protect nesting grounds A. Reserves and wildlife refuge B. Relocate eggs to hatcheries. C. Patrol the beaches from poachers D. Prevent coastal development and activity.

2. How can we protect the turtles and their habitat? Education A. Get locals involved B. Decrease international trade of products C. Scientific research D. Tell others

2. How can we protect the turtles and their habitat? Improvements A. Improve fishing trawls (TED) B. Protect with turtle farms C. Decrease pollution and trash D. Get involved

3. Problems being faced with enforcing laws Not all countries have the money or manpower to control poaching on beaches. Violations of poaching may only face a simple fine, or may be disregarded.

3. Problems being faced with enforcing laws Jurisdiction varies between governmental agencies: water = fishery depart. land = wildlife and forest depart.

3. Problems being faced with enforcing laws Turtle farms for trade and reinstatement cost millions of dollars and take 20 to start. “to some people... trade and conservation appear to conflict, but if properly applied, they could well be the key to surviving the species” --H. Reichart

3. Problems being faced with enforcing laws Local people are not educated enough in rural countries and need turtle meat as a source of protein. Not all nesting beaches can be protected.

4. What can we do as students? We can do our part in conservation by simple acts: 1. Picking up trash on the beach. 2. Cutting soda 6-pack rings, and recycle 3. Don’t buy marine animal products and souvenirs 4. Be careful what food we eat.

4. What can we do as students? We can go further by: 1. Volunteer in helping scientists do research. 2. Adopt a turtle. 3. Become members of animal conservation societies. 4. Write to your Congressman.

Interesting Facts: Archelon is the oldest known fossil at 150MYA. Found in 1970’s in S.Dakota.

Archelon: Measured 15ft long (from beak to tail) and 16.5ft wide (including flippers and shell),

Archelon: Primarily ate giant squid.

Photo Credits #1,7,11,16,17,19,24,29,37, #5 #6 #8,10,12,14,18, #13,26,32,36, #10,15,21, #23,41, #25

Photo Credits cont. #43, 46 Webhost.bridgeW.edu/EsandG/blkbeach.htm: #45 #8, 22, 48 J. Ripple Sea Turtles. Voyageur Press: #33, 35, 39, 40, 44 Jeff Seminoff: #9 John R. Hendrickson: #4,27,28, 30, 34 Hometown.aol.com/gonyosoma/folklore.html: #2 #9, 10 #50,51,52