TITLE

Landscape structure and live fences in Andes Colombian agrosystems: upper basin of the Cane-Iguaque River

AUTHOR(S)
Otero, Javier; Onaindia, Miren
PUB. DATE
December 2009
SOURCE
Revista de Biología Tropical;dec2009, Vol. 57 Issue 4, p1183
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
Changes in land use have generated a new landscape configuration in the Andino orobiome (mountain range) of the tropical Andes, resulting in a mosaic of cultivation and pastures interrupted by small fragments of forest and live fences. This has resulted in an ongoing decrease in the biodiversity of this biome. In the upper basin of the Cane-Iguaque River (Villa de Levya-Boyacá, Colombia), located 2 600-3 000 m above the Cordillera Oriental, over three time periods in 1960, 1984, and 2004, we characterized the structure, patterns, and evolution of the overall landscape and of the live fences (used as tools in biodiversity conservation and considered to be desirable alternatives to nonlive fences in farming production systems) within an agricultural landscape. To do this, we interpreted high-resolution satellite images using a landscape ecology approach and applied landscape map metrics. We found that the natural forests have been transformed by pastures and cultivation, and that although live fences cover only a small portion of the total landscape (4.6%), they have an important effect on landscape structure and biodiversity. There has been an increase in live fences, especially between 1960 and 1984, as well as an increase in their density. However, there has been a reduction in the average length of live fences over the periods that we studied. This could be due in part to changes in the types of agricultural products that have been cultivated in recent years, with an increase in potatoes and a decrease in other vegetables, and also by resource extraction of timber and fuel wood. In the studied area, agricultural production was sustained while biodiversity conservation was improved by the use of live fences. Therefore, live fences should be considered not only as part of an agriculturally productive area, but also as an important element of a multi-functional landscape that contributes to the maintenance of biodiversity and provides resources of economic and ecological interest, decreasing the pressure on natural forest. Improving the network of live fences constitutes an important strategy for the sustainable management of the rural landscape of the Andino orobiome of Colombia and similar areas in the tropics. Rev. Biol. Trop. 57 (4): 1183-1192. Epub 2009 December 01.
ACCESSION #
44622478

 

Related Articles

  • Public Health Ecology. Coutts, Christopher J. // Journal of Environmental Health;Jan2010, Vol. 72 Issue 6, p53 

    The author reflects on the vital connection between land conservation and human health. He opines that landscape structure and the resources to support city structure have a direct influence on the agents that affect detectable health aftermath. An overview of the conceptual framework of public...

  • Books on Insect Biodiversity and Conservation. Hawksworth, David // Biodiversity & Conservation;Dec2011, Vol. 20 Issue 13, p3279 

    Reviews are provided for four books relevant to the studies on the biodiversity conservation of insects: Insect diversity conservation (Samways 2005), Insect conservation biology (Stewart et al. 2007), Ecology of insects: concepts and applications (Speight et al. 2008, 2nd edn), and Insect...

  • Wanted for Conservation Research: Behavioral Ecologists with a Broader Perspective. Linklater, Wayne L. // BioScience;Apr2004, Vol. 54 Issue 4, p352 

    Behavioral ecologists have advocated a greater role for behavioral research in conservation, and the contribution of behavioral stury to conservation has increased dramatically. However, a review of the literature in the fields of behavioral ecology and conservation finds that haalf the articles...

  • Biodiversity Conservation Demands Open Access. Fonseca, Gustavo; Benson, Philippa J. // PLoS Biology;Nov2003, Vol. 1 Issue 2, p163 

    Presents recommendations to further improve biodiversity conservation. Prevalence of the extinction of bird species; Step that should be taken to develop effective conservation actions; Factors that should be considered in biodiversity conservation research.

  • Ecological Modeling in the News. Lundmark, Cathy // BioScience;Sep2004, Vol. 54 Issue 9, p880 

    Presents updates on ecological modeling as of September 2004. Defense made by ecologist Charles L. Gallegos on the use of computer model in the Chesapeake Bay Program; Development of a model of outbreaks in gypsy moth populations; Use of modeling in the evaluation of conservation plans.

  • The Nature of Nature and Humanity's Place in it. MEHAN III, G. TRACY // PERC Reports;Winter/Spring2013, Vol. 31 Issue 1, p6 

    The article tackles the nature of nature as a way of addressing the integration of economics and ecology. The question on whether to preserve nature or to use it for multiple purposes was discussed. Daniel Botkin contested that humans' misguided view of nature as something to be untapped impeded...

  • Lighting Saves Energy Company Energy.  // Energy & Power Management;Jul2005, Vol. 30 Issue 7, p29 

    This article informs that Ecopower helped a large Hawaiian refinery protect the unique ecology at one of its locations and cut energy use through lighting reductions. The strategy saved precious electrical resources but also complied with the Dark Skies initiative. Dark Skies is a global...

  • Mapping where ecologists work: biases in the global distribution of terrestrial ecological observations. Martin, Laura J.; Blossey, Bernd; Ellis, Erle // Frontiers in Ecology & the Environment;May2012, Vol. 10 Issue 4, p195 

    Although the geographical context of ecological observations shapes ecological theory, the global distribution of ecological studies has never been analyzed. Here, we document the global distribution and context (protected status, biome, anthrome, and net primary productivity) of 2573...

  • Third Workshop on the Ecology, Status, and Conservation of Diamondback Terrapins (Malaclemys terrapin): Results and Recommendations. Butler, Joseph A.; Heinrich, George L.; Seigel, Richard A. // Chelonian Conservation & Biology;Dec2006, Vol. 5 Issue 2, p331 

    The article discusses the results and recommendations of the third workshop on the ecology, status and conservation of Diamondback Terrapins. This conservation meeting built upon the accomplishments of 2 earlier workshops. The first workshop was held in August 1994 in response to reports of...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics