從生物多樣性的消失來看。根據估計，地球上每天滅絕的物種超過一百種，滅絕的速率是自然滅絕速率的一萬倍以上。此種惡化的情況趨勢若再不改善，約在2050年時地球上將會有四分之一以上的物種消失 (IUCN 植物中心，66-186萬種)，人類將難以生存。
(1) 維生體系的基礎 複雜的生物物種與自然環境間之互動關係，提供了人類賴以生存的生命維持系統，其功能如保護土壤、穩定水文、調節氣候。
(2) 健康與經濟 生物之多樣性為人類提供食物、醫藥、生物科技與工業原料等經濟資源。
- kenct113Lv 51 0 年前最佳解答
★Q: Why borders on dead the kind of wild animal's definition?
Refers to the race group quantity according to the wild animal care legal system to fall to the dangerous standard, its survival already faced with crisis wild animal.
★Q: How many borders on dead the kind of wild animal's type to have? The scientist estimated on the Earth has surpasses 1,000 kind of animals to border on dead the kind, but also has more types the biology to wipe out an entire race in the situation which the humanity did not know. The investigation which does in 1973 knew according to above world wild animal organization that, the world borders on dead a kind of mammalia animal to have the polar bear and so on 294 kinds; The birds have the blue腹鷴 and so on 281 kinds; The reptile has the alligator and so on 86 kinds; The fish has the cavity thorn fish and so on 79 kinds; The amphibious kind has the salamander and so on 29 kind and all that for number very many animal.
★Q: Borders on reason which dead the kind of wild animal quantity
unceasingly reduces why?
The before biological dead kind usually was evolves in the distance, because could not adapt the natural environment spontaneous change but dead to extinguish, but in recent years because humanity's massive developments caused the wild animal habitat to suffer the serious destruction and the change, somewhat distributes this already narrow living thing, narrower and smaller extinguishes in the habitat existing space dead , Some external species introduction also introduced the external disease plague to create does not have the immune body the native place species massive deaths, but also had because of does not have the natural enemy to affect the native place species existing space. Illegal catch smuggling, but also has the specific crowd the food to make up the idea, also creates the massive wild animals to compel dead a kind of crisis.
2007-12-24 01:10:26 補充：
★Q: How borders on dead a kind of wild animal to be supposed the care?
The government vigorously initiates the environmental protection, the establishment country park, the plan natural ecology retention area, important goal is the retention wild biology survival space.
2007-12-24 01:10:53 補充：
Moreover regarding borders on the wild animals and plants which dead xtinguishes, except delimits outside its specific protectorate, but also carries on its recover work by the experts. Most needs is the international center large-scale organization advocated.
2007-12-24 01:11:04 補充：
"The international natural care alliance [ are called IUCN ] take the natural environment and the resources care as the goal", for positively protects the wild animals and plants,
2007-12-24 01:11:07 補充：
collects the world from 1966 to border on dead the kind of zoology and botany material, established care of activity the international cooperation.
2007-12-24 01:11:32 補充：
★Q: What type the wild animal dead can the kind create to the world the
Biodiversity vanishes from looked. According to estimated, on the Earth extinguishes every day dead the species surpass 100 kinds, extinguishes dead the speed is naturally extinguishes dead above speed ten thousand times.
2007-12-24 01:11:36 補充：
This kind of worsened situation tendency if does not improve again, approximately when 2050 Earth general will be able to have 1/4 above the species to vanish (IUCN plant center, 66-186 ten thousand kinds), the humanity with difficulty will survive.
2007-12-24 01:11:57 補充：
(1) maintains livelihood between the system foundation complex biology species and the natural environment the interaction relations, has provided the humanity live with the life maintenance system, its function like protection soil, stable hydrology, adjustment climate.
2007-12-24 01:12:00 補充：
(2) is healthy and multiplicity of the economical biological provides food, the medicine, the biotechnology and the raw material for industry for the humanity and so on the economical resources.
2007-12-24 01:12:07 補充：