Titlebook: Ecological Indicators; Volume 1 Daniel H. McKenzie,D. Eric Hyatt,V. Janet McDonald Book 1992 Springer Science+Business Media Dordrecht 1992

使苦惱

Innocence

違反

Water-Brash

可忽略

Earth Day Plus 20: Rediscovering EcologyThere is a great need for prompt action to address new environmental problems facing us worldwide. I want to sketch the global dimensions of this challenge, and to suggest the essential role of ecological principles in finding solutions.

synovitis

https://doi.org/10.1007/978-981-16-7505-8 example, much like the present day droughts in the Sahel (Adams, 1990). Today natural causes are still dominant as the agent of change in many ecosystems, although increasingly the balance is shifting to human activities as the major source of stress.

撫育

flavonoids

Obedient

職業(yè)拳擊手