نتایج جستجو برای: forest range

تعداد نتایج: 766089  

Journal: :محیط شناسی 0
مجید مخدوم

six catchment areas of fars, where belong to bioclimatic zone of deciduous temperate forests of palearctic realm, first were . surveyed, and mapped (scale:1: 100,000). then, after ecological and socio economic data analysis and integration, the ecosystem map (mapping unit) of the area was depicted (makhdoum 1992). the ecological capability of catchment areas for agriculture, range management, f...

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...

2013
Amy L. Adams Katharine J. M. Dickinson Bruce C. Robertson Yolanda van Heezik

Invasive species are often favoured in fragmented, highly-modified, human-dominated landscapes such as urban areas. Because successful invasive urban adapters can occupy habitat that is quite different from that in their original range, effective management programmes for invasive species in urban areas require an understanding of distribution, habitat and resource requirements at a local scale...

2016
Andres Susaeta José R. Soto Damian C. Adams Derek L. Allen

Forests play an important role with respect to water resources, and can be managed to increase surfaceand groundwater recharge. With the creation of a forest water yield payment system, privately-owned forests, which comprise the majority of forest area in the Southeastern US, could become an important potential source of additional water supply. The economic tradeoffs between timber revenues a...

Journal: :Ecological applications : a publication of the Ecological Society of America 2007
Thomas A Spies Brenda C McComb Rebecca S H Kennedy Michael T McGrath Keith Olsen Robert J Pabst

We used spatial simulation models to evaluate how current and two alternative policies might affect potential biodiversity over 100 years in the Coast Ranges Physiographic Province of Oregon. This 2.3-million-ha province is characterized by a diversity of public and private forest owners, and a wide range of forest policy and management objectives. We evaluated habitat availability for seven fo...

2015
Rodrigo L. L. Orihuela Carlos A. Peres Gabriel Mendes João A. Jarenkow Marcelo Tabarelli Dusan Gomory

We examine the effects of forest fragmentation on the structure and composition of tree assemblages within three seasonal and aseasonal forest types of southern Brazil, including evergreen, Araucaria, and deciduous forests. We sampled three southernmost Atlantic Forest landscapes, including the largest continuous forest protected areas within each forest type. Tree assemblages in each forest ty...

2016
Robin L. Chazdon Pedro H. S. Brancalion Lars Laestadius Aoife Bennett-Curry Kathleen Buckingham Chetan Kumar Julian Moll-Rocek Ima Célia Guimarães Vieira Sarah Jane Wilson

We present a historical overview of forest concepts and definitions, linking these changes with distinct perspectives and management objectives. Policies dealing with a broad range of forest issues are often based on definitions created for the purpose of assessing global forest stocks, which do not distinguish between natural and planted forests or reforests, and which have not proved useful i...

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