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  • The reason why I came up with that conclusion now has become a very important aspect in my line of research: many tropical forests lack evidence of mammalian herbivory due too that what I call defaunation-the loss of the fauna. News

  • Genetically modified grains, vaccines and weird things like "defaunation" are tops on the FAO's list to 'fix' the cow's "unproductive use of dietary energy", -- effectively, in favor of nitrous oxide?

    The Earth Times Online Newspaper

  • More subtly, "defaunation" has ecological ramifications, including disrupting the natural balance of wildlife populations and potentially impacting ecosystem dynamics through the removal of key pollinators, seed predators, and dispersers. News

  • He ranks defaunation - as he terms the ongoing biological impoverishment of forests - as one of the world's most significant global changes, on par with environmental changes like global warming, deforestation, and shifts in the nitrogen cycle. News

  • Such selective defaunation creates a new selective force for evolution of the forest: no attack on the large seeds, and heavy attack on the small seeds. News

  • Dirzo says the scale of defaunation is quite dramatic - each year tens of millions of animals are killed in the Amazon, Africa, and Asia. News

  • I consider defaunation another global environmental change, on a level comparable with climate change, land use change, and fragmentation. News

  • Places such as the Brazilian Amazon have defaunation rates of about 15 million animals per year for a given locality. News

  • This creates a complex cascading effect in which the forest changes its plant composition, diversity and regeneration patterns - all driven by anthropogenic defaunation! News

  • So we can see, defaunation is a very serious problem. News


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  • A search of New Wire Stories shows it's use dates back to at least March 1993 in a USA Today news story quoting 'tropical botanist Alwyn Gentry, Missouri Botanical Gardens, St. Louis'

    ""When we started working in the Iquitos area you found animals regularly, but in 15 years there's been major defaunation." Alwyn Gentry.

    March 10, 2015

  • "The term defaunation, used to denote the loss of both species and populations of wildlife, as well as local declines in abundance of individuals, needs to be considered in the same sense as deforestation, a term that is now readily recognized and influential in focusing scientific and general public attention on biodiversity issues." - Rodolfo Danzo et al., Science, 25 July 2014. v.345 issue 6195, p. 4-1

    March 10, 2015