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Showing items 1 through 9 of 46.
  1. Library Resource
    January, 2004
    Argentina

    This paper analyzes the impact of land titling on child health and education in Argentina. The authors exploit a natural experiment in the allocation of land titles across squatters in a poor suburban area of Buenos Aires, Argentina, to evaluate the impact of property rights on child health and education outcomes.

  2. Library Resource
    Journal Articles & Books
    December, 2016
    Argentina

    We analysed coexistence patterns between two mesocarnivores, Geoffroy's cat (Leopardus geoffroyi: Felidae) and culpeo fox (Pseudalopex culpaeus: Canidae), in northern Patagonia, Argentina. We examined spatial distribution influenced by land cover, anthropogenic disturbance and invasive hare presence, and analysed temporal activity patterns and dietary composition. If competitive exclusion accounts for carnivore coexistence in this system, we predicted segregation would occur in one or more of these aspects as a mechanism for coexistence.

  3. Library Resource
    Journal Articles & Books
    December, 2013
    Argentina

    Land-use land-cover (LULC) changes are one of the major threats to biodiversity worldwide, since their principal consequences are the loss, fragmentation or degradation of the habitat available for most species. Therefore, in order to provide guidelines for environmental management at the regional scale and thus reverse the trend in degradation, transformations of natural remnants into anthropogenic land uses must be identified and quantified.

  4. Library Resource
    Journal Articles & Books
    December, 2016
    Argentina

    The Pampean region covers a large surface in central Argentina, but despite the extensive agricultural activities and the high nutrient levels recorded in streams of the region, few authors have analysed the influence of land use on water quality. Here, we evaluated the relationships among catchment attributes (size, morphometry and land cover) and water chemistry in 23 Pampean streams in different seasons (autumn, spring and summer) and at three spatial scales: whole catchment and two scales of riparian buffers (200 and 500 m adjacent to both stream margins).

  5. Library Resource
    Journal Articles & Books
    December, 2016
    Argentina

    Urbanization is a global phenomenon with still unknown consequences for vegetation dynamics of urban ecosystems, especially in subtropical areas of developing countries. In this paper we analyze the vegetation productivity trend associated to urban densification and urban expansion during the last decade, in twelve cities of northern Argentina. We used time series analysis of MODIS-NDVI images to reconstruct the phenological patterns to retrieve a productivity trend under three spatial classes of urban dynamics: (1) urban, (2) expansion and (3) periphery.

  6. Library Resource
    Journal Articles & Books
    December, 2005
    United States of America, Argentina

    This paper analyzes the evolution of property rights legislation in Argentina with respect to new seed varieties. In comparison to the United States, Argentina has weak protection and enforcement of property rights for new seeds. These weak property rights affect the registration and commercialization of new soybean seeds. This paper shows how private producers of seeds react to differences in property rights between Argentina and the United States and also between corn and soybeans.

  7. Library Resource
    Journal Articles & Books
    December, 2014
    Argentina

    Twenty years ago I completed my Master’s work in the Chaco forests of northern Argentina. The native forests are, in fact, rangelands. In addition to livestock grazing, there is timber extraction, wildlife harvest (think tegu lizard cowboy boots), and charcoal production. I took part in a project comparing biodiversity among production systems. A new system promised to reverse biodiversity loss and soil degradation. But it’s a moot point now since much of that forest has been cleared for cropland—the highest rate of tropical forest loss in the world.

  8. Library Resource
    Journal Articles & Books
    December, 2002
    Argentina

    Remote sensing digital image analysis is applied to monitor desertification processes in central San Luis Province (Argentina), where signs of severe landscape degradation have been observed in the last decades. Two Landsat images, acquired in 1982 and 1992 were used to evaluate the potential of using remote sensing analysis in desertification monitoring. After geometric and radiometric correction of both images, multitemporal comparison techniques were utilized to emphasize areas of greater degradation.

  9. Library Resource
    Journal Articles & Books
    December, 2012
    United States of America, Ukraine, China, Uruguay, Canada, Argentina, Russia, Mexico, Northern America, South America

    Liu, X., Burras, C. L., Kravchenko, Y. S., Duran, A., Huffman, T., Morras, H., Studdert, G., Zhang, X., Cruse, R. M. and Yuan, X. 2012. Overview of Mollisols in the world: Distribution, land use and management. Can. J. Soil Sci. 92: 383–402. Mollisols – a.k.a., Black Soils or Prairie Soils – make up about 916 million ha, which is 7% of the world's ice-free land surface. Their distribution strongly correlates with native prairie ecosystems, but is not limited to them. They are most prevalent in the mid-latitudes of North America, Eurasia, and South America.

  10. Library Resource
    Journal Articles & Books
    December, 2013
    Argentina

    In recent years, there has been an increasing interest in the study of climate change effects on plant phenology. However, the effects of other more localized components of global change such as land degradation have been almost completely ignored. In this paper we evaluate the phenological patterns of 10 plant species at three sites with contrasting levels of land degradation due to overgrazing in the Patagonian Monte, Argentina, and their relationship with plant morphology, browsing intensity, and plant competition.

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