野生动物灭绝原因和保护措施PPT课件.ppt

野生动物灭绝野生动物灭绝原因和保护措原因和保护措施施Before industrial society one type of bird extincted in 300 years on average one type of beast extincted in 8000 years on averageAfter industrial society The speed of extinction had grown one-thousand times than it naturally would.18 plant 14 mammal 19 bird will extinct.15 crawl 13 fish1.The destory of living environment illegal logging change of river2.Overexploitation ivory Fur of tiger craft close medical3.Environmental pollution toxic fumes industry waste waterWhat should we do to protect animals?1.Have a good attitudeTippi and elephant Animals are humans good friends!They are closely related to human.It is an important part to keep the ecological balance.2.Propaganda We should strengthen the propaganda about the protection of wild animals,take an active part in this activity,popularize knowledge about wild animals.3.Create wildlife protective zones Governments should create more safe zones and national parks for wild animals where they will be able to move freely without worrying about hunters and poachers.We also can make nests for birds,or make home for wild animals.4.Use legal methodsIn our country,we have our law to protect wild animals,“sanctuaries,banning,fasting wild animals”is the main idea.We should have a good implementation.Our goal:To be good care of every bird and mammal,be in harmony with wild animals.