نتایج جستجو برای: land conservation

تعداد نتایج: 212216  

2010
Carissa J. Klein Natalie C. Ban Benjamin S. Halpern Maria Beger Edward T. Game Hedley S. Grantham Alison Green Travis J. Klein Stuart Kininmonth Eric Treml Kerrie Wilson Hugh P. Possingham

BACKGROUND Coral reefs have exceptional biodiversity, support the livelihoods of millions of people, and are threatened by multiple human activities on land (e.g. farming) and in the sea (e.g. overfishing). Most conservation efforts occur at local scales and, when effective, can increase the resilience of coral reefs to global threats such as climate change (e.g. warming water and ocean acidifi...

2017
Sabrina Lai Corrado Zoppi

This article focuses on the role that the provisions of the Natura 2000 Network play in affecting land-taking processes by looking at the Italian region of Sardinia, where strict rules on land development have been enforced since 1993 through regional landscape plans and where an extensive Natura 2000 Network, covering nearly 19% of the regional land mass, was established in compliance with Dir...

Journal: :Integrative zoology 2006
Jeffrey A McNeely

The leading direct cause of the loss of biodiversity is habitat alteration and disruption. If we are to address this cause directly, we need to find ways of changing the behavior of rural people. Experience has shown that this is done most effectively through the use of economic instruments, ranging from taxes that discourage over-exploitation, to direct payments for conservation activities car...

2007
JEFFREY C. MILDER

O the next quarter-century in the United States, 18 million hectares (ha) of land—an area larger than New England—will be converted to urban, suburban, and exurban development, if recent trends in land use change continue (USDA/NRCS 2007). Indeed, residential development is becoming a ubiquitous force on the American landscape, not only in metropolitan areas but also in amenityand resource-rich...

2005
ROBERT W. DIETZ

Few attempts have been made to analyze the status of conservation efforts at a continental scale, mainly because of the lack of high-quality data sets at this scale. Given that land management agencies want to prioritize conservation efforts and spend limited resources wisely, we recognized the need to undertake a national gap analysis. We developed the most detailed national vegetation cover m...

2013
Michael Schoon Jacopo A. Baggio Kehinde R. Salau Marco A. Janssen

In recent years there has been a shift in biodiversity conservation efforts from the confines of enclosed protected areas to a more expansive view of interlinked habitat patches across multiple land tenure types and land uses. However, much work remains on how conservation managers can intervene in such a system to achieve the sustainabil-ity of basic conservation goals. An agent-based model of...

Journal: :iranian journal of environmental sciences 0
maliheh masoodi msc. graduate in environmental science, gorgan university of agricultural and natural resources, gorgan, iran abdolrasoul salman mahiny assoc. prof., faculty of environment science, gorgan university of agricultural and natural resources, gorgan, iran marjan mohammadzadeh assist. prof., faculty of environment science, gorgan university of agricultural and natural resources, gorgan, iran seyed hamed mirkarimi assist. prof., faculty of environment science, gorgan university of agricultural and natural resources, gorgan, iran

today, ecotourism is a major tourist activity around the world. it is based on environment potential through which suitable utilization and conservation of sites under management practices including considering accurate planning, potential, and peoples’ preferences are realized. the present study was conducted to determine people’s recreational preferences using questionnaires to evaluate the e...

2011
Kenneth G. Boykin Kendal E. Young Rachel K. Guy

Landscape scale conservation planning efforts have been in place for the past several decades to maintain biodiversity. Objectives of past efforts have been to identify areas to create reserves based on species diversity, land ownership, and landscape context. Risk analysis has not often been included in these spatial analyses. Datasets such as the Southwest Regional Gap Analysis (SWReGAP) are ...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2004
F G Becker G V Irgang H Hasenack F S Vilella N F Verani

The state of conservation of Atlantic Forest in the Maquiné river basin was assessed using land cover data obtained from Landsat TM 5 satellite imagery (October 1995). The initial analysis examined the distribution of the relative areas of each land-cover type according to landscape slope classes, potential vegetation zones, and a 90 m riparian buffer. Land-cover classes were then regrouped int...

2008
H. Ricardo Grau

Current socioeconomic drivers of land-use change associated with globalization are producing two contrasting land-use trends in Latin America. Increasing global food demand (particularly in Southeast Asia) accelerates deforestation in areas suitable for modern agriculture (e.g., soybean), severely threatening ecosystems, such as Amazonian rain forests, dry forests, and subtropical grasslands. A...

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