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Climate Change Is Already Causing Widespread Local Extinction in Plant and Animal Species

Friday, December 9, 2016 22:33

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Extinctions related to climate change have already happened in hundreds of plant and animal species around the world. New research, publishing on December 8th in the open-access journal PLOS Biology, shows that local extinctions have already occurred in 47% of the 976 plant and animal species studied.

Climate change is predicted to threaten many species with extinction, but determining how species will respond in the future is difficult. Dozens of studies have already demonstrated that species are shifting their geographic ranges over time as the climate warms, towards cooler habitats at higher elevations and latitudes.

Local extinctions are almost twice as common in tropical species than temperate species.

Image Credit: Flickr user, wanderingseoul61

The new study, by Professor John J. Wiens from the University of Arizona, used these range-shift studies to show that local extinctions have already happened in the warmest parts of the ranges of more than 450 plant and animal species. This result is particularly striking because global warming has increased mean temperatures by less than 1 degree Celsius so far.

These extinctions will almost certainly become much more widespread over time, because temperatures are predicted to increase by an additional 1 to 5 degrees in the next several decades. These local extinctions could also extend to species that humans depend on for food and resources.

The study also tested the frequency of local extinction across different regions, habitats, and groups of organisms. It found that local extinctions occurred in about half of the species surveyed across different habitats and taxonomic groups. However, the results showed that local extinctions varied by region and were almost twice as common among tropical species as among temperate species.

This is important as the majority of plant and animal species live in the tropics. The results of this study contribute to our understanding of how plants and animals will respond to global climate change and highlight the need to slow and prevent further warming.

Contacts and sources:

PLoS

Citation: Wiens JJ (2016) Climate-Related Local Extinctions Are Already Widespread among Plant and Animal Species. PLoS Biol 14(12): e2001104.
doi:10.1371/journal.pbio.2001104 http://dx.plos.org/10.1371/journal.pbio.2001104

SEE ORIGINAL STUDY

Source: http://www.ineffableisland.com/2016/12/climate-change-is-already-causing.html

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Comments

Total 1 comment

desertspeaks

do something about chemtrails.. there’s what killing your plants you fricking moron!

Dec 9, 2016, 10:37 pm 0 Reply

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