Skip to main content

New List: Top 20 Extinction Hotspots

Potential mammalian extinction hotspots.
(Image: © PNAS)

Animal conservation efforts generally focus on the areas richest in species diversity or where many species are believed to face increased risk of extinction.

But a new study suggests these efforts should be redirected to spots where animals possess specific traits that will be most threatened by future human activity.

Using the newest geographic, biological, and phylogenetic databases for nearly 4,000 mammal species, researchers have identified 20 regions around the globe as potential extinction hotspots.

The research is detailed in the March 6 issue of the Proceedings of the National Academy of Sciences.

The areas where predicted latent risk is highest include the northern regions of North America and the islands in the southwest Pacific. Currently, these areas are relatively unmodified by humans, and mammals in these areas don’t appear threatened.

But add humans to the mix and that could quickly change. Take for example the dodo, which was doing just fine until humans found it and then hunted it to extinction in just a few hundred years.

Top 20 Extinction Hotspots ranked by mean latent risk:

HotspotMean latent riskProjected annual human pop. growth % (2000-2015)
1Southern Polynesia0.970.46
2Greenland0.63-0.76
3Andaman and Nicobar Islands0.611.96
4Melanesian islands0.542.78
5Indian Ocean islands0.542.15
6Maluku0.510.05
7Bahamas0.41-0.65
8New Guinea0.362.91
9Lesser Antilles0.350.51
10Nusa Tenggara0.340.8
11Northern Canada and Alaska0.320.09
12Sulawesi0.311.92
13Tasmania and Bass Strait0.31-0.11
14Borneo0.271.82
15Siberian tundra0.27-0.56
16Sumatra and Peninsular Malaysia0.261.62
17Eastern Canadian Forests0.26-0.84
18Patagonian Coast0.251.64
19Western Java0.251.3
20East Indian highlands0.230.69