各位请帮我改下语法那些的,还有句子的结构.

各位请帮我改下语法那些的,还有句子的结构.
Hummingbirds,as one of endangered animals,the continuously dwindling population will cause a domino effect on the whole ecosystem and make it unstable and even collapse with a irretrievable damage.Hummingbirds,like other species of birds,play an important and specific role in the ecosystem- pollinating and eating pest.However,there is a serious problem that according to an analysis by the Birdlife International,there have been 28 species of hummingbirds being at the risk of extinction:Sapphire-bellied Hummingbird,Chestnut-bellied Hummingbird,Mangrove Hummingbird,Blue-capped Hummingbird,because animal extinction is a warning sign of the instability of ecosystem.The ecological stability is characterized of the population of species and how well the energy flows to next level through the food web.Thus,the increase of extinction rate of the hummingbirds will cause a domino effect on the food web; it will speed up the rate of extinction of other species because hummingbirds can play a decisive role in maintaining the ecological balances.

Hummingbirds,one of the endangered animals (1),is a (2) continuously dwindling population which (3) will cause a domino effect on the whole ecosystem and make it unstable or even collapse due to irreparable (4) damage.Hummingbirds,like other species of birds,play an important and specific role in the ecosystem,such as pollinating flowers(5) and eating pests (6).However,according to an analysis by the Birdlife International,there is a serious problem (7).There are 28 species of hummingbirds at the risk of extinction (8),such as the Sapphire-bellied Hummingbird,Chestnut-bellied Hummingbird,Mangrove Hummingbird,and the Blue-capped Hummingbird (9).Animal extinction (10) is a warning sign of the instability of the (11) ecosystem since (12) ecological stability is characterized by the (13) population of species and how well the energy flows to (14) the next level through the food web.Thus,the increase in (15) extinction rate of the hummingbirds will cause a domino effect in (16) the food web; it will speed up the rate of extinction of other species because hummingbirds play (17) a decisive role in maintaining the ecological balance (18).
1.as 在这插入句中多余了.
2.句子不全,插入局前的hummingbird不能连到the continuously...
3.需要连词
4.形容词错误
5.用such as描述例子,pollinating and eating pest,就是pollinating pest和eating pest,这个平行错误.
6.flower和pest要用复数,因为是多个hummingbird,所以多个~
7.句子整改,原句太卡
8.being不用,句中不用现在完成时,你说的是他们不再是濒临灭绝物种了吗?
9.用such as描述例子.
10.你的因果关系不明确
11.要加the
12.整改句子,形成因果
13.要用介词by,characterized by是固定搭配
14.加the
15.increase in 是在这里更合适
16.在食物网里,所以用in
17.为什么用can?他们本身在环境中就是哪个作用,省can
18.balance单数,多个因素造一个平衡.