نتایج جستجو برای: sabzkouh protected area

تعداد نتایج: 631890  

2014
Paolo Russu Baodong Zheng

This paper investigates how the introduction of user fees and defensive expenditures changes the complex dynamics of a discrete-time model, which represents the interaction between visitors and environmental quality in an open-access protected-area OAPA . To investigate this issue more deeply, we begin by studying in great detail the OAPA model, and then we introduce the user fee β and the defe...

Journal: :PLoS Biology 2008
Luigi Boitani Richard M Cowling Holly T Dublin Georgina M Mace Jeff Parrish Hugh P Possingham Robert L Pressey Carlo Rondinini Kerrie A Wilson

In 1872, United States President Ulysses Grant set aside 2.2 million acres of wilderness, primarily for recreational purposes, as the first formally recognized protected area (PA)—Yellowstone National Park. The concept took hold slowly over the next hundred years, and PAs are now recognized as essential to biodiversity conservation [1] and as irreplaceable tools for species and habitat manageme...

2011
Llewellyn C Foxcroft Vojtěch JaroŠÍK Petr Pyšek David M Richardson Mathieu Rouget

Human land uses surrounding protected areas provide propagules for colonization of these areas by non-native species, and corridors between protected-area networks and drainage systems of rivers provide pathways for long-distance dispersal of non-native species. Nevertheless, the influence of protected-area boundaries on colonization of protected areas by invasive non-native species is unknown....

2011
Vanessa Hull Weihua Xu Wei Liu Shiqiang Zhou Andrés Viña Jindong Zhang Jinyan Huang Marc Linderman Xiaodong Chen Yan Huang Zhiyun Ouyang Hemin Zhang Jianguo Liu

Protected areas worldwide are facing increasing pressures to co-manage human development and biodiversity conservation. One strategy for managing multiple uses within and around protected areas is zoning, an approach in which spatial boundaries are drawn to distinguish areas with varying degrees of allowable human impacts. However, zoning designations are rarely evaluated for their efficacy usi...

2007
E. S. Dias A. J. Edwardes R. S. Purves

The advent of location-based technologies deployed in protected areas provides both visitors and managers of such areas with new opportunities. In this paper we investigate the potential for mining individual tracks of visitors’ geospatial lifelines to both extract information describing aggregated patterns of group behaviour and characterise individual actions. Methods to spatio-temporally clu...

Journal: :Ambio 2004
Michael P Wells Thomas O McShane

Conservationists recognize that many protected areas have limited future prospects without the cooperation and support of local people, especially in developing countries. Since the 1980s Integrated Conservation and Development Projects (ICDPs) have attempted to reconcile park management with local needs and aspirations, usually with disappointing results. Achieving local cooperation and suppor...

2015
Enrico Di Minin Tuuli Toivonen

Aichi target 11 of the Convention of Biological Diversity promotes the expansion of the global protected area network to cover 17 percent of all terrestrial land and 10 percent of coastal and marine areas by 2020 (www.cbd.int/sp/targets). At the recent World Parks Congress, organized by the International Union for Conservation of Nature (IUCN) in Sydney, Australia, 12 innovative approaches wer...

2015
Wei Liu Christine A. Vogt Frank Lupi Guangming He Zhiyun Ouyang Jianguo Liu

Evolution of tourism in a flagship protected area of China Wei Liu, Christine A. Vogt, Frank Lupi, Guangming He, Zhiyun Ouyang & Jianguo Liu To cite this article: Wei Liu, Christine A. Vogt, Frank Lupi, Guangming He, Zhiyun Ouyang & Jianguo Liu (2015): Evolution of tourism in a flagship protected area of China, Journal of Sustainable Tourism, DOI: 10.1080/09669582.2015.1071380 To link to this a...

2014
Janeth Lessmann Jesús Muñoz Elisa Bonaccorso

Ecuador has the largest number of species by area worldwide, but also a low representation of species within its protected areas. Here, we applied systematic conservation planning to identify potential areas for conservation in continental Ecuador, with the aim of increasing the representation of terrestrial species diversity in the protected area network. We selected 809 terrestrial species (a...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Arun Agrawal

Excitement among social scientists about the discovery of randomized controlled trials has been tempered by the recognition that experimental research and related designs may be infeasible, prohibitively expensive, or even unsuitable for an enormous range of questions of interest to social science and policy (1–3). Recourse to matching-based statistical approaches can enable more transparent ca...

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