14.Coincident with concerns about theaccelerating loss of species and habitats has been a growing appreciation ofthe importance of biological diversity，the number of species in a particular ecosystem，to the health of the Earth andhuman well-being．

(倒装coincident with concerns…has been…=…has been coincident withconcerns…)

在对物种和动物栖息地加速消失表示关注的同时，人们也越来越认识到生物多样化，即一个特定生态系统中物种的数量对地球的健康以及人类幸福的重要性。

分句1：Coincident with concerns about theaccelerating loss of species and habitats has been a growing appreciation ofthe importance of biological diversity

分句2：the number of species in aparticular ecosystem

分句3：to the health of the Earth andhuman well-being

分句1内部构成倒装，正常语序应该是concerns about theaccelerating loss of species and habitats has been coincident with a growingappreciation of the importance of biological diversity to the health of theEarth and human well-being

所以真正的主句经过精简之后是concernshas been coincident with a growing appreciation

分句2是一个插入语，用来解释说明分句1结尾的biological diversity