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2. ) ) ) ) ) ) 3. ! 4. , ! 5. ? ?Photo credit:http://divebarbados.net/Current%20Photos/Pictures/Green%20Turtle%201.jpghttp://www.kidcyber.com.au/IMAGES/hippoaggro_s.jpghttp://homepage.mac.com/wildlifeweb/reptile/gharial/gharial03tfk.jpg 6. ... , Amphi , bian , ( ), , ( ). 7. (Metamorphosis) 8. 9. 10. 11. 12. Freezing North American Wood Frogs (3).flv 13. FactorsProcess(es)Climate ch ange Temperature and precipitation patter ns are altered s o as tocause disruptions in micro or macro-climatic conditionsHabitat Deforestation and agriculture; drained and filled wetlands,modificationland fillingHabitat Roads, introduced s pecies, and low pH dissect habitats,fragmentation creating barr iers to dispersal.Introduced speciesIntroduced predators, pr ey on/or compete with nativeamphibians.UV-B radiationUV-B damag es and/or kills cells, causing egg mort ality,lesions, malformations and increased susceptibility todisease and low pH.ChemicalToxins cause direct mortality of eggs and adults, mimiccontamination endocrine harmones, r educe th e prey base, pesticidal effect;fluoranthene.Acid precipitation Toxins create barrier s to dispersal and cause high egg andand s oillarval mortality.Disease Diseaseoftencauses death in amphibians(Chytridiomycosis) 14. ( , ) http://www.ejvs.laurasianacademy.com/ejvs0302/ejvs0302.txt Photos: http://i2.photobucket.com/albums/y47/reneesparkes/Newer%20stuff/Jungle_Book_Mowgli_Kaa_657.jpghttp://therealrevo.com/blog/wp-content/uploads/2009/05/blog20220boiling_frog.jpg 15. 16. 17. 18. 19. 20. 21. 22. , Triadobatrachus Beelzebufo ampinga 23. , - , - , , caudata - , - , - GymnophionaAnura 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. /