1. Marine Reptiles

2. Marine Reptiles General Characteristics
Vertebrates originally adapted for land that have reinvaded the water
Specialized eggs
Poikilotherms and ectotherms

3. Marine Reptiles Sea Turtles Bodies enclosed by armor-like shell
There are 7 – 8 species of sea turtles

4. Marine Reptiles Sea Turtles Diet varies with species
Benthic invertebrates – Kemp’s ridley, loggerhead, flatback (also jellyfish)
Sponges – Hawksbill
Jellyfish – Leatherback
Sea grasses – Green, black (also jellyfish)
Diverse – Olive ridley (crustaceans, jellyfish, algae)

5. Marine Reptiles Sea Turtles Reproduction Return to land to lay eggs
Females lay eggs at night (up to 160 eggs)
Gender of hatchlings depends on incubation temperature

6. Marine Reptiles
Sea Turtles
Reproduction

7. Marine Reptiles
Sea Turtles
Distribution

8. Marine Reptiles Sea Turtles Distribution Black Flat Back Hawksbill
Kemp’s Ridley

9. Marine Reptiles
Sea Turtles
Distribution
Leatherback
Loggerhead

10. Marine Reptiles
Sea Turtles
All species are threatened or endangered

11. Marine Reptiles
Sea Turtles
All species are threatened or endangered

12. Marine Reptiles Sea Snakes 55 species
Laterally flattened with a paddle-like tail
Immense Lungs
Ovoviviparous
Carnivores
Venomous

13. Marine Reptiles Marine Iguanas One species – Galápagos Islands
Spends most of its time basking in sun
Feed on algae
Eliminate salt through salt glands
Good swimmers
Territorial

14. Marine Reptiles Saltwater Crocodiles Inhabits mangroves and swamps
Found in E. Indian, W. Pacific and Australia
Largest crocodile species
Diverse diet
Aggressive

15. Marine Reptiles
Saltwater Crocodiles

16. Marine Reptiles Saltwater Crocodiles
Other Crocodiles inhabit fresh or brackish water
In tropics of Africa, Asia, Americas and Australia
Alligators – broader snouts, only upper teeth seen when jaws closed
Only in US and China
Crocodile
American Alligator

17. Seabirds

18. Seabirds General Characteristics:
Spend significant portion of life at sea
Have webbed feet for swimming
Endotherms and homeotherms
Adaptations include
Feathers
Hollow bones
Nest on land
Salt glands to excrete salt

19. Seabirds Diversity: Body form and Lifestyle: Penguins Albatross
Pelicans
Cormorants
Frigate birds
Gulls
Shorebirds
penguin
penguin

20. Seabirds Diversity: Body form and Lifestyle: Penguins Albatross
Pelicans
Cormorants
Frigate birds
Gulls
Shorebirds

21. Seabirds Diversity: Diet Small zooplankton – Prions Fishes – Penguins
Squids – Petrels
Benthic invertebrates – Razorbill
Other birds – Petrels
Resource partitioning is common (minimizes competition)