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Results 1 - 10 from 178 for extinction rates in 0.436 sec.
International Botanical Congress Statement on Biodiversity
... compilation of the latest data on extinction rates of plant and animal life around the world reports that humanity's impact on the earth has increased extinction rates to levels rivaling the five mass ... areas, which will be true within 50 years at present rates of destruction (and sooner if these rates are accelerated), then extinction rates will be three or four orders of magnitude higher than those ...
www.rbg.ca
ECO-PROS Biodiversity - Species
"Scientists also agree that current extinction rates are far higher than "natural" ones because of human activities such as pollution, habitat destruction ...
www.eco-pros.com
ISSG's Global Invasive Species Database
Amongst these isolated populations, extinction rates are especially high. The invasive species problem is growing in severity and geographic extent ... water lettuce Pistia stratiotes. Avian malaria, through its mosquito vector has contributed to the extinction of at least 10 native bird species in Hawaii and threatens many more. ...
issg.org
Evolution, Mass Extinctions, and Mass Speciations
"The total origination rates generally track the total extinction rates quite closely." The selective nature of the extinctions involve types (taxa) ... source: Weir, J.T., Schulter, D. (2007) The Latitudinal Gradient in Recent speciation and Extinction Rates of Birds and Mammals. Science 315:1574-1576]. Again there is the Unexpected -- ...
livingcosmos.com
low-impact living
Another example: the UN Environment Program, in its Global Biodiversity Assessment, estimated that current extinction rates are around 1000 times the natural (pre-human) rate! We don’t have to wait ... have a few hundred years until all rainforest is gone, and that we have an extinction rate of around 8000 species a year! what can I do? First of all, take ...
lowimpact.org
Biodiversity Conservation System
Unfortunately, quantifying rates of species extinction, both at present and historically, is difficult and predicting future rates ... extinction rates should be interpreted with very considerable caution. Pursuit of increased accuracy in the estimation of global extinction rates, however ...
devalt.org
EDGE of Existence :: Evolutionarily Distinct & Globally Endangered
It is estimated that global extinction rates are a thousand times higher than background rates indicated by the fossil record. Humans have been driving this mass extinction throughout our brief and ... biodiversity. Many evolutionarily distinct (ED) amphibians have already lived through up to three mass extinction events in prehistoric historic, times when life on this planet experienced a severe ...
edgeofexistence.org
EDGE of Existence :: Mammal Extinctions
It is estimated that global extinction rates are a thousand times higher than background rates shown by the fossil record. Humans have been driving this mass extinction -- by direct hunting, ...
edgeofexistence.org
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NERC - The sixth great extinction
Events You are here: Home > Our research > Environmental issues > Biodiversity > A sixth mass extinction? About us Funding Our research Research news Introduction Science themes Research programmes National ... be in the midst of another mass extinction. Scientists estimate that extinction rates today are about 1000 times higher than the background rates of the past - around two extinctions a year ...
www.nerc.ac.uk
Species Extinction Threat Vastly Underestimated
Melbourne. "When we apply our new mathematical model to species extinction rates, it shows that things are worse than we thought," explained Melbourne. "By accounting for random differences between individuals, extinction rates for endangered species ...
scienceagogo.com
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