نتایج جستجو برای: wilderness region and wildlife

تعداد نتایج: 16892361  

Journal: :Current Biology 2016
Thomas E. Lovejoy

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

Journal: :Wilderness & Environmental Medicine 1996

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2006
Isabelle E Deguise Jeremy T Kerr

Reserve networks figure prominently in conservation strategies that aim to reduce extinction rates. We tested the effectiveness of the current reserve network at protecting species at risk in Canada, where relatively extensive wilderness areas remain. We compared numbers of terrestrial species at risk included in existing reserves to randomly generated networks with the same total area and numb...

2011
Rebecca Kessler

Mercury Levels Lower in Great Lakes, but Still High Although mercury concentrations have decreased about 20% in fish, fish-eating birds, and inland lake sediments across the Great Lakes region in recent decades, levels in top predator fish and wildlife are still dangerously high, and in some places concentrations in some fish and wildlife may now be increasing, according to a new report. Levels...

2005
Daniel R. Williams

This paper examines public support for new user fees established at the Desolation Wilderness in California as part of the Fee Demonstration Program. Traditional approaches to fee policy evaluations have typically focused on economic or revenue issues and equity impacts of various pricing strategies. Support for fees has been shown to vary by users in terms of attitudes toward fees, nature of u...

Journal: :Science 2015

Journal: :SSRN Electronic Journal 2019

Journal: :The American Journal of the Medical Sciences 1882

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