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A global examination of distributions of all nonmarine mammals to determine patterns …

Biology Articles » Conservation Biology » Global mammal distributions, biodiversity hotspots, and conservation » Tables

Tables
- Global mammal distributions, biodiversity hotspots, and conservation

Table 1. Representation of mammalian species richness, restricted-range species, and threatened species in the 2.5% and 5% hotspots
Hotspots Total species* Species (%)
2.5% criterion 5% criterion
Richness 4,818 1,265 (26) 1,919 (40)
Restricted 1,520 1,525 (32) 2,565 (53)
Threatened 1,116 2,257 (47) 2,630 (55)
Total in all hotspots 2,833 (59) 3,274 (68)
The first column indicates the number of species in that category; e.g., “restricted-range species” is the total number of mammal species with narrow ranges (>250,000 km2). The first numbers (“Species”) in columns 3 and 4 (“2.5% criterion” and “5% criterion”) indicate the total numbers of species represented in the different hotspots, and the numbers in parentheses show the percentages of species represented with respect to total number of nonmarine species richness on the planet (“Global total,” 4,818 species).
*Global total (total richness = all species in study, 4,818).
Table 2. Results of the 2.5% defined hotspots under three different types of diversity measure
2.5% defined hotspots Area in 10,000 km2 (% total land mass) Number of species (% total mammal spp.)
Richness 443 (2.4) 1,265 (26)
Restricted 128 (1) 1,525 (32)
Threatened 409 (2.3) 2,257 (47)
Total in all hotspots 859 (4.7) 2,833 (59)
The number of 10,000-km2 grid cells defined as hotspots and the number of mammal species represented in those cells are tabulated. Note the different numbers of cells in each type of hotspot, with the most in richness, as explained in the text.

Table 3. Congruence among the hotspots

Congruence of hotspots, %
Richness Restricted-range species Threatened species
Richness 0.0001 2 23
Restricted-range species 1 0.0001 22
Threatened species 10 2 0.0001
The overlap in species (above diagonal) and cells (below diagonal) is shown. The statistical significance of comparing overlap versus random is indicated in the diagonal.

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