Mostrando 861 - 880 Resultados de 18,145 Para Buscar '"biodiversity"', tiempo de consulta: 0.88s Limitar resultados
  1. 861
    por Chavan, Vishwas, Penev, Lyubomir
    Publicado 2011
    “…BACKGROUND: Free and open access to primary biodiversity data is essential for informed decision-making to achieve conservation of biodiversity and sustainable development. …”
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  2. 862
  3. 863
    “…METHODS/PRINCIPAL FINDINGS: Using empirical data on the current patterns of freshwater fish biodiversity for rivers of peninsular India, we show here how the spatial changes alone under an archetypal IBWT project will (1) reduce freshwater fish biodiversity system-wide, (2) alter patterns of local species richness, (3) expand distributions of widespread species throughout peninsular rivers, and (4) decrease community richness by increasing inter-basin similarity (a mechanism for the observed decrease in biodiversity). …”
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  4. 864
    “…The objective of the study was to determine whether long-term metal pollution affects communities of epigeal spiders (Aranea), studied at three taxonomic levels: species, genera, and families. Biodiversity was defined by three indices: the Hierarchical Richness Index (HRI), Margalef index (D(M)) and Pielou evenness index (J). …”
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  5. 865
  6. 866
  7. 867
    “…Decisions guiding environmental management need to be based on a broad and comprehensive understanding of the biodiversity and functional capability within ecosystems. …”
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  8. 868
  9. 869
  10. 870
  11. 871
    “…BACKGROUND: A so called “taxonomic impediment” has been recognized as a major obstacle to biodiversity research for the past two decades. Numerous remedies were then proposed. …”
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  12. 872
  13. 873
  14. 874
    “…We identified several undersampled regions and outlined conservation and management priorities to improve our knowledge and aid in protection of the subterranean biodiversity in Tennessee.…”
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  15. 875
    “…BACKGROUND: As global environmental change accelerates, biodiversity losses can disrupt interspecific interactions. …”
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  16. 876
  17. 877
  18. 878
    “…We determined the environmental correlates of vascular plant biodiversity in the Baetic-Rifan region, a plant biodiversity hotspot in the western Mediterranean. …”
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  19. 879
  20. 880
    “…Diversity harboured and management techniques make homegardens keystones in strategies for regional biodiversity conservation.…”
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