نتایج جستجو برای: wilderness areas

تعداد نتایج: 402708  

Journal: :PLoS ONE 2008
Stephen Blake Sharon L. Deem Samantha Strindberg Fiona Maisels Ludovic Momont Inogwabini-Bila Isia Iain Douglas-Hamilton William B. Karesh Michael D. Kock

A dramatic expansion of road building is underway in the Congo Basin fuelled by private enterprise, international aid, and government aspirations. Among the great wilderness areas on earth, the Congo Basin is outstanding for its high biodiversity, particularly mobile megafauna including forest elephants (Loxodonta africana cyclotis). The abundance of many mammal species in the Basin increases w...

Journal: :Current Biology 2016
Thomas E. Lovejoy

The efforts to increase protected area coverage are overlooking the importance of remaining wilderness areas.

2006
SONJA KRÜGER

In keeping with the South African definition of wilderness (National Environmental Management: Protected Areas Act No. 57 of 2003), the policy is to preserve natural conditions by allowing natural ecological processes to operate without human interference. This policy presents managers with a dilemma for wilderness fire stewardship: What is the natural or historical fire regime, and is wilderne...

2009
Lee E. Frelich Peter B. Reich

1 Corresponding author: [email protected] ABSTRACT: Climate warming is predicted to cause boreal forests in the Boundary Waters Canoe Area Wilderness (BWCAW), Minnesota, to shift to savanna and/or temperate forest in the next century. Invasive earthworms, exotic tree pests, and deer overabundance will magnify the impacts of warmer temperatures. Seldom do we assess potential threats to ecosystem ...

Journal: :Canadian family physician Medecin de famille canadien 2013
Gwynn Curran-Sills Neil McDonald Paul S Auerbach Rodney Crutcher

Journal: :Journal of the Air & Waste Management Association 2009
Marco A Rodriguez Michael G Barna Tom Moore

The Intermountain West is currently experiencing increased growth in oil and gas production, which has the potential to affect the visibility and air quality of various Class I areas in the region. The following work presents an analysis of these impacts using the Comprehensive Air Quality Model with extensions (CAMx). CAMx is a state-of-the-science, "one-atmosphere" Eulerian photochemical disp...

Journal: :Environmental management 2009
David N Cole Troy E Hall

Understanding how setting attributes influence the nature of the visitor experience is crucial to effective recreation management. Highly influential attributes are useful indicators to monitor within a planning framework, such as Limits of Acceptable Change. This study sought to identify the setting attributes perceived to have the most profound effect on the ability to have "a real wilderness...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
R A Mittermeier C G Mittermeier T M Brooks J D Pilgrim W R Konstant G A B da Fonseca C Kormos

Human pressure threatens many species and ecosystems, so conservation efforts necessarily prioritize saving them. However, conservation should clearly be proactive wherever possible. In this article, we assess the biodiversity conservation value, and specifically the irreplaceability in terms of species endemism, of those of the planet's ecosystems that remain intact. We find that 24 wilderness...

2000
Peter S. White Jonathan Harrod Joan L. Walker Anke Jentsch

Natural disturbances are critical to wilderness management. This paper reviews recent research on natural disturbance and addresses the problem of managing for disturbances in a world of human-imposed scales and boundaries. The dominant scale issue in disturbance management is the question of patch dynamic equilibrium. The dominant boundary issue in disturbance management is the effect of bound...

2000
Matthew Rollins Tom Swetnam Penelope Morgan

Twentieth century fire patterns were analyzed for two large, disparate wilderness areas in the Rocky Mountains. Spatial and temporal patterns of fires were represented as GIS-based digital fire atlases compiled from archival Forest Service data. We find that spatial and temporal fire patterns are related to landscape features and changes in land use. The rate and extent of burning are interpret...

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