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Showing items 1 through 9 of 1786.
  1. Library Resource
    Journal Articles & Books
    December, 2013
    Kenya, United States of America, Eastern Africa, Northern America

    Biodiversity in rangelands is decreasing, due to intense utilization
    for livestock production and conversion of rangeland into cropland;
    yet the outlook of rangeland biodiversity has not been
    considered in view of future global demand for food. Here we
    assess the impact of future livestock production on the global
    rangelands area and their biodiversity. First we formalized existing
    knowledge about livestock grazing impacts on biodiversity,
    expressed in mean species abundance (MSA) of the original

  2. Library Resource
    Journal Articles & Books
    August, 2014
    France, United Kingdom, Kenya, United States of America, Eastern Africa, Northern America, Northern Europe, Western Europe

    Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that support computation of a range of biodiversity indicators, is necessary to enable better understanding of historical declines and to project – and avert – future declines.

  3. Library Resource
    Journal Articles & Books
    December, 2016
    United States of America, Northern America

    Stream and riparian health is a major concern for state and federal land management agencies that are charged with oversight of extensive land holdings in the mountain west of the United States. Several federal agencies in the 1980s and 1990s determined that livestock grazing had adversely impacted a majority of federal lands in this region. In response, management was changed on grazing allotments to focus on stream system health.

  4. Library Resource
    Policy Papers & Briefs
    April, 2019
    Ecuador, United States of America

    Francisco Hidalgo[1]
     
    ¿Desde dónde analizar los resultados de las elecciones seccionales del 24 de marzo en el Ecuador?, mirarlos como una serie de acontecimientos con una lógica provincial o, pese a su ámbito seccional, desde una óptica desde las tendencias nacionales. Optamos en este artículo iniciar por lo segundo, y en un siguiente análisis abordaremos lo local.

  5. Library Resource

    Volume 8 Issue 12

    Peer-reviewed publication
    December, 2019
    Canada, Europe

    Climate change may increase the importance of agriculture in the global Circumpolar North with potentially critical implications for pristine northern ecosystems and global biogeochemical cycles. With this in mind, a global online survey was conducted to understand northern agriculture and farmers’ perspective on environmental change north of 60° N.

  6. Library Resource

    Volume 9 Issue 1

    Peer-reviewed publication
    January, 2020
    Australia, United States of America, United Kingdom, Germany, China

    Land degradation is a global issue receiving much attention currently. In order to objectively reveal the research situation of land degradation, bibliometrix and biblioshiny software packages have been used to conduct data mining and quantitative analysis on research papers in the fields of land degradation during 1990–2019 (data update time was 8 April 2019) in the Web of Science core collection database. The results show that: (1) during the past 20 years, the number of papers on land degradation has increased.

  7. News
    Foto: DW/J. Beck
    3 January 2020
    Africa
    Mozambique
    Southern Africa
    Ataques de insurgentes aterrorizam a província de Cabo Delgado há mais de dois anos. O economista moçambicano João Mosca identifica um interesse não declarado na instabilidade da região; rica em recursos minerais.
     
  8. Library Resource

    Volume 8 Issue 10

    Peer-reviewed publication
    October, 2019
    Mexico, United States of America

    This paper presents a synopsis of the challenges and limitations presented by existing and emerging land use/land cover (LULC) digital data sets when used to analyze the extent, habitat quality, and LULC changes of the monarch (Danaus plexippus) migratory habitat across the United States of America (US) and Mexico. First, the characteristics, state of the knowledge, and issues related to this habitat are presented.

  9. Library Resource

    Volume 8 Issue 8

    Peer-reviewed publication
    August, 2019
    United States of America

    Across the United States, there has been a growing interest in local food production, which provides an alternative way to increase self-sufficiency and support greater well-being and food security at the community level. This study focused on the Northern Panhandle region of Idaho, where opportunities derived from the local food movement have emerged in several resort and college towns.

  10. Library Resource

    Volume 8 Issue 4

    Peer-reviewed publication
    April, 2019
    United States of America

    The annual budget for the United States National Park Service was roughly $3 billion in 2016. This is distributed amongst 405 National Parks, 23 national scenic and historic trails, and 60 wild and scenic rivers. Entrance fees and concessions generate millions of dollars in income for the National Park Service; however, this metric fails to account for the total value of the National Parks. In failing to consider the value of the ecosystem services provided by the National Parks, we fail to quantify and appreciate the contributions our parks make to society.

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