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Restoring ecosystem health and integrity during a human
population increase to ten billion
John Cairns, Jr.1
& James R. Pratt2
1University
Center for Environmental and Hazardous Materials Studies, Virginia
Polytechnic Institute and State University, Blacksburg, VA 24061-0415,
USA.
2School
of Forest Resources and Graduate Program in Ecology, Pennsylvania
State University, University Park, PA, 16802, USA.
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Abstract
Human population growth and the improving condition
of human populations in developing countries affect ecological health
and integrity. Agricultural development co-opts increasing amounts
of global primary production, degrading lands, and reducing species
richness. The development of human populations and associated Increasing
demands for energy assures disposal for increasing amounts of waste,
further damaging local ecosystems. Global climate change resulting
from diffuse pollutants will affect even the most pristine ecosystems.
The human challenge is to maintain ecological integrity and restore
ecosystems in the face of accelerating development. The present
level of ecosystem protection in not sufficient. Only integrated
means of assessing recovery potential and acting to restore ecological
productivity can assure continued availability of ecosystem services
ranging from free production of food and fiber by plants and animals
to final waste assimilation. Restoring ecosystems presumes that
species sources are available and that adequate management is in
place to monitor and manage recovery. Today, even in the most advanced
societies, management is fragmented by non-integrative thinking
and the failure to realize that the human scale of political decision-making
and management is inappropriate to assure ecosystem restoration.
Only by adopting radically new ideas integrating management and
ecosystem science can ecological integrity be maintained.
Keywords: global change, ecosystem restoration, human population
growth
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