www.sciencemag.org/cgi/content/full/science.1246752/DC1

Supplementary Materials for

The biodiversity of species and their rates of extinction, distribution, and protection

S. L. Pimm,* C. N. Jenkins, R. Abell, T. M. Brooks, J. L. Gittleman, L. N. Joppa, P. H. Raven, C. M. Roberts, J. O. Sexton

*To whom correspondence should be addressed. E-mail: stuartpimm@me.com

Published 30 May 2014, Science 344, 1246752 (2014)

DOI: 10.1126/science.1246752

This PDF file includes:

Materials and Methods Figs. S1 and S2 Table S1 References

Supplementary  Materials:  

Materials  and  Methods  

Materials  and  Methods:    

We  obtained  global  data  on  species  ranges  and  threat  level  for  cone  snails  (28)  

amphibians  (51)  birds  (37)  and  mammals  (50)  and  from  IUCN  (13).  Data  for  

freshwater  fish  are  described  in  detail  in  Abell  et  al.  (61).  The  figures  presented  here  

use  an  updated  version  of  that  database,  primarily  with  updates  for  the  South  

American  ecoregions.  Protected  areas  are  from  the  World  Database  on  Protected  

Areas  (94)  

Plant  data  are  a  subset  of  the  species  found  within  the  online  database  ‘The  Plant  

List’  www.theplantlist.org.  This  is  a  working  list  of  all  known  plant  species  first  

released  in  2010  to  coincide  with  the  completion  of  the  first  phase  of  the  GSPC.  We  

analyzed  108,718  species  from  The  Plant  List,  taken  from  the  World  Checklist  of  

Selected  Plant  Families  (6,  43,  111)  

Maps  of  forest-‐cover  change  were  retrieved  from  the  1990,  2000,  and  2005  epochs  

of  the  Global  Land  Survey  Collection  of  Landsat  images  (135).  Forest  cover  in  2000  

and  2005  were  mapped  by  translating  percent  tree-‐cover  grids  into  categorical  

“forest”  and  “non-‐forest”  values  by  applying  a  threshold  of  30%  tree  cover,  

consistent  with  the  International  Geosphere-‐Biosphere  Programme  definition  of  

forests  (136).  Forest  cover  in  1990  was  retrieved  by  supervised  classification  of  

1990  GLS  images,  trained  on  a  sample  of  stable  pixels  extracted  from  the  2000-‐2005  

data.  These  pixels  were  those  whose  forest/non-‐forest  classification  did  not  change  

between  2000  and  2005  observations  and  which  were  not  excluded  by  spectral  

change  detection.  

The  photographs  in  figure  1  are  from  SLP,  except  the  plant  —  a  undescribed  species  

of  Corybas  orchid  (Stephanie  Pimm  Lyon)  and  a  newly  discovered  frog,  Andinobates  

cassidyhornae  (Luiz  Maziergos).    All  reproduced  with  permission.      

   

Consistent  estimates  of  extinction  rates.  

In  the  main  text,  table  1  only  counts  “possibly  extinct”  species  as  extinctions  for  

birds,  because  they  are  explicitly  identified  in  ref.  (37).    For  amphibians  

http://www.iucnredlist.org/initiatives/amphibians  (accessed  May  22nd  2014)  and  

mammals  http://www.iucnredlist.org/initiatives/mammals  (accessed  May  22nd  

2014)  such  designations  are  not  included  in  the  summaries,  but  are  included  in  the  

individual  species  treatments.  Table  S1  includes  the  total  of  possibly  extinct  species  

from  these  individual  treatments  of  amphibians  and  mammals,  so  making  them  

consistent  with  those  for  birds.    

Table S1. Extinction rates calculated by cohort analysis and fractions of species that

are critically endangered (CR). Data from (13, 37, 50, 51). All species thought to be

“possibly extinct,” “extinct in the wild” and “possible extinction in the wild” are counted

as extinctions. Species extinct before discovery are not counted.

When Extinction Described Species Extinctions Species-years rate CR % CR

Birds Before 1900 8922 93 1,812,897 51 123 1.4 1900 to present 1230 13 98,334 132 60 4.9

Amphibians Before 1900 1437 18 212,348 85 22 1.5 1900 to present 4967 121 206,149 587 379 7.6

Mammals Before 1900 3048 37 499,101 74 55 1.8 1900 to present 2486 32 174,512 183 100 4.0  

   Figure  S1.  Different  visualizations  of  species  biodiversity.  (A)  The  distributions  of  

9,927  bird  species,  (B)  the  4,964  with  smaller  than  the  median  geographical  range  

size,  (C)  the  1,308  assessed  as  Threatened  with  a  high  risk  of  extinction  by  BirdLife  

International  for  the  IUCN  Red  List  and  the  (D)  1,080  Threatened  species  with  less  

than  the  median  range  size.  (D)  provides  a  strong  geographical  focus  on  where  local  

conservation  actions  can  have  the  greatest  global  impact.    

   

   

Figure  S2.  The  distribution  of  species  in  the  marine  snail  genus  Conus  in  and  around  

the  Cape  Verde  Islands.  (A)  The  numbers  of  all  species  and  (B)  those  with  ranges  

smaller  than  the  median  range  size  globally,  (C)  those  threatened  and  (D)  data  

deficient  species  for  which  there  is  insufficient  data  to  assess  their  status.  The  

background  imagery  is  shown  in  approximately  true  color  to  show  the  distribution  

of  forests  (dark  green),  drylands  (buff),  and  oceanic  bathymetry  (darker  colors  

mean  deeper  water).  Details  in  (53).  

 

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Pimm SM cover page.pdfThe biodiversity of species and their rates of extinction, distribution, and protection

Pimm refs for SM.pdfReferences