Download or read book The Puerto Rico Gap Analysis Project Volume 1 written by and published by . This book was released on 2008 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Puerto Rico faces a number of problems common to much of the world. Population is increasing while land area is not, and there are reassessments of land use policy and practice to accomodate growing populations, shifting economies, and changing public value systems. Puerto Rico shares similarities with the Eastern United States with its history of agricultural abandonment, relatively high population density, and abundance of "forested" suburban areas in the wildland-urban interface. Puerto Rico has affinities with other tropical regions with high biodiversity and an abundance of rare species. Puerto Rico shares similarities with small islands with space limitations, an abrupt terrestrial-marine interface, and species diversity controlled by the isolation of the island as well as climatic, evolutionary, and historical factors. The Puerto Rico Gap Analysis Project documents land cover, vertebrate occurrences and natural history information, and land stewardship. The report has four major components: land cover mapping, documentation of vertebrate species distributions, documentation of land stewardship practices with respect to conservation, and an integrated analysis of these three elements. Our current reserve system protects a number of important habitats and species and includes 7.6 percent of Puerto Rico. Expanding this to 15 percent would be more in line with internationally accepted conservation goals. Abandoned agricultural land serves as habitat for a number of species and buffers older forests, wetlands, riparian areas, and reserves. These lands have exellent potential for restoration. Recomendations include expanded reserves in the coastal plain, particularly coastal hills and the matrix of wetland and upland vegetation; regulation of development in the periphery of existing reserves; and developing viable corridors to connect the upland and coastal reserves."
Download or read book The Puerto Rico Gap Analysis Project written by and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High and Low Density Development in Puerto Rico written by William A. Gould and published by . This book was released on 2008 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enclosed map was developed by the Puerto Rico Gap Analysis Project and displays the distribution of high and low density development in Puerto Rico. The development data was created through remote sensing analysis of Landsat ETM+ satellite imagery ranging from the years 2000 to 2003. The classification of the images resulted in a developed landcover of Puerto Rico, where urban, built-up and non-vegetated areas that result from human activity were identified. Using additional remote sensing techniques the developed land cover was divided into high and low-density. High-density includes greater than 50% developed surface within a 9 ha area, low-density is less than 50%. From a total of 95 342 ha of urban/built-up lands, 54 899 ha (nearly 60%) is high density development, and 40 443 ha (nearly 40%) is low-density development.
Download or read book Research Development written by United States. Forest Service. Research and Development and published by . This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Geological Survey Professional Paper written by Sheila F. Murphy and published by . This book was released on 1984 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Novel Ecosystems written by Richard J. Hobbs and published by John Wiley & Sons. This book was released on 2013-01-07 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land conversion, climate change and species invasions are contributing to the widespread emergence of novel ecosystems, which demand a shift in how we think about traditional approaches to conservation, restoration and environmental management. They are novel because they exist without historical precedents and are self-sustaining. Traditional approaches emphasizing native species and historical continuity are challenged by novel ecosystems that deliver critical ecosystems services or are simply immune to practical restorative efforts. Some fear that, by raising the issue of novel ecosystems, we are simply paving the way for a more laissez-faire attitude to conservation and restoration. Regardless of the range of views and perceptions about novel ecosystems, their existence is becoming ever more obvious and prevalent in today’s rapidly changing world. In this first comprehensive volume to look at the ecological, social, cultural, ethical and policy dimensions of novel ecosystems, the authors argue these altered systems are overdue for careful analysis and that we need to figure out how to intervene in them responsibly. This book brings together researchers from a range of disciplines together with practitioners and policy makers to explore the questions surrounding novel ecosystems. It includes chapters on key concepts and methodologies for deciding when and how to intervene in systems, as well as a rich collection of case studies and perspective pieces. It will be a valuable resource for researchers, managers and policy makers interested in the question of how humanity manages and restores ecosystems in a rapidly changing world. A companion website with additional resources is available at www.wiley.com/go/hobbs/ecosystems
Download or read book Annual Letter 2002 2003 written by International Institute of Tropical Forestry (Río Piedras, San Juan, P.R.) and published by . This book was released on 2007 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developed Land Cover of Puerto Rico written by William A. Gould and published by . This book was released on 2008 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enclosed map was developed by the Puerto Rico Gap Analysis Project and displays the distribution of developed land cover in Puerto Rico. Developed land cover refers to urban, built-up and non-vegetated areas that result from human activity. These typically include built structures, concrete, asphalt, and other infrastructure. The developed land cover was created through remote sensing analysis of Landsat ETM+ satellite imagery ranging from the years 2000 to 2003. For these years Puerto Rico had 95 342 ha of developed lands, 11% of the country's surface, with most developments occurring in coastal plains and valleys.
Download or read book Tropical Forest Ecology and Management for the Anthropocene written by Grizelle González and published by MDPI. This book was released on 2019-12-18 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue looks forward as well as backward to best analyze the forest conservation challenges of the Caribbean. This is made possible by 75 years of research and applications by the United States Department of Agriculture, International Institute of Tropical Forestry (the Institute) of Puerto Rico. It transforms Holocene-based scientific paradigms of the tropics into Anthropocene applications and outlooks of wilderness, managed forests, and urban environments. This volume showcases how the focus of the Institute’s programs is evolving to support sustainable tropical forest conservation despite uncertain conditions. The manuscripts showcased here highlight the importance of shared stewardship and a long-term, hands-on approach to conservation, research programs, and novel organizations intended to meet contemporary conservation challenges. Policies relevant to the Anthropocene, as well as the use of experiments to anticipate future responses of tropical forests to global warming, are reexamined in these pages. Urban topics include how cities can co-produce new knowledge to spark sustainable and resilient transformations. Long-term results and research applications of topics such as soil biota, migratory birds, tropical vegetation, substrate chemistry, and the tropical carbon cycle are also described in the volume. Moreover, the question of how to best use land on a tropical island is addressed. This volume is intended to be of interest to all actors involved in long-term sustainable forest management and research in light of the historical lessons and future directions that may come out of a better understanding of tropical cities and forests in the Anthropocene epoch.
Download or read book Annual Letter written by International Institute of Tropical Forestry (Río Piedras, San Juan, P.R.) and published by . This book was released on 2005 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Creating Cloud free Landsat ETM Data Sets in Tropical Landscapes written by Sebastian Martinuzzi and published by . This book was released on 2007 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report IITF written by and published by . This book was released on 1995 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Units of Puerto Rico written by and published by . This book was released on 2008 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enclosed map was developed by the Puerto Rico Gap Analysis Project and displays variation in the landscape units by integrating six climatic zones (Holdridge lifezones), six geologic substrates, and five topographic positions. The map was developed for the purpose of understanding and modeling variation in vegetation. The map presents a set of ecologically distinct units and can serve as a tool for stratifying the landscape for assessing variation in ecosystem attributes and services.
Download or read book Department of the Interior and Related Agencies Appropriations for 2002 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 2001 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban and Rural Land Use in Puerto Rico written by and published by . This book was released on 2008 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enclosed map was developed by the Puerto Rico Gap Analysis Project and displays a land use classification of Puerto Rico. The map identifies three land use regions. Urban, suburban, and rural, and displays developed (buil-up) surfaces. Urban areas are predominantly developed (greater than 20% developed land surface within a surrounding 1 km). Suburban and rural areas are predominantly natural land cover with suburban areas having a higher population density. The suburban areas could also be considered densely-populated rural and as the wildland urban interface (WUI). The classification was made using information on the density of developed land and on human population distribution. The classification can aid in the understanding of how people use and develop the island and serve as a tool in land use planning.
Download or read book Department of the Interior and Related Agencies Appropriations for 2002 Secretary of the Interior written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 2001 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hummingbirds written by Michael Fogden and published by Ivy Press. This book was released on 2014-03-17 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hummingbirds have always held popular appeal, with their visual brilliance, extraordinary flight dexterity and jewel-like size and colour. Only recently has their serious scientific study started to gain the attention it demands. With the increasing interest in biodiversity, they are a subject growing in significance with every new species discovery made. Hummingbirds presents every species, with over 300 birds shown in dazzling, life-size, cut-out photography.
