Definitions for Defaunation
de·fau·na·tion

WikipediaRate this definition:0.0 / 0 votes

1. Defaunation

   Defaunation is the global, local, or functional extinction of animal populations or species from ecological communities. The growth of the human population, combined with advances in harvesting technologies, has led to more intense and efficient exploitation of the environment. This has resulted in the depletion of large vertebrates from ecological communities, creating what has been termed "empty forest". Defaunation differs from extinction; it includes both the disappearance of species and declines in abundance. Defaunation effects were first implied at the Symposium of Plant-Animal Interactions at the University of Campinas, Brazil in 1988 in the context of Neotropical forests. Since then, the term has gained broader usage in conservation biology as a global phenomenon.It is estimated that more than 50 percent of all wildlife has been lost in the last 40 years. In 2016, it was estimated that by 2020, 68% of the world's wildlife would be lost. In South America, there is believed to be a 70 percent loss. A 2021 study found that only around 3% of the planet's terrestrial surface is ecologically and faunally intact, with healthy populations of native animal species and little to no human footprint.In November 2017, over 15,000 scientists around the world issued a second warning to humanity, which, among other things, urged for the development and implementation of policies to halt "defaunation, the poaching crisis, and the exploitation and trade of threatened species."

WikidataRate this definition:3.0 / 2 votes

1. Defaunation

   Defaunation is a process in an ecosystem, during which top predators and herbivores are declining due to anthropogenic pressures, resulting in a lack of agents that control the components of the ecosystem's vegetation. Herbivores are important for maintaining the biodiversity of a forest by controlling the abundance of plant species and seed dispersal. Defaunation is a significant environmental change and conservation issue. One of the main drivers of defaunation is poaching. In animal sciences, the removal of protozoa from the rumen of ruminants is also called defaunation. Defaunated rumen fluid affects the ruminal volume, nitrogen flow and digestibility of organic matter and cell wall carbohydrate.

How to pronounce Defaunation?

1. Alex

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How to say Defaunation in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Defaunation in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of Defaunation in Pythagorean Numerology is: 2

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Defaunation
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Defaunation