 Critically Endangered (CR) A taxon is Critically Endangered when it is facing an extremely high risk of extinction in the wild in the immediate future, as defined by any of the following criteria (A to E): A.  1997 IUCN Red List of Threatened Plantsde World Conservation Monitoring Centre - 1998 - 862 páginasVista previa restringida - Acerca de este libro
 | Curt Meine, George Archibald - 1996 - 298 páginas
...EVALUATED (NE) A taxon is Not Evaluated when it is has not yet been assessed against the criteria. CRITICALLY ENDANGERED (CR) A taxon is Critically Endangered...in the immediate future, as defined by any of the following criteria (A to E): A) Population reduction in the form of either of the following: 1 ) An... | |
 | Nigel Maxted, B.V. Ford-Lloyd, J.G. Hawkes - 1997 - 474 páginas
...Extinct in the Wild when it is known only to survive in cultivation, in captivity or as a naturalized population (or populations) well outside the past...of extinction in the wild in the immediate future. Endangered (EN) A taxon is Endangered when it is not Critically Endangered but is facing a very high... | |
 | Daniel M. Brooks, Richard E. Bodmer, Sharon Matola - 1997 - 176 páginas
...translated into other languages. V) The Criteria for Critically Endangered, Endangered and Vulnerable CRITICALLY ENDANGERED (CR) A taxon is Critically Endangered...in the immediate future, as defined by any of the following criteria (A to E): A) Population reduction in the form of either of the following: 1) An... | |
 | Mohd. Khan bin Momin Khan, Nico J. van Strien, IUCN/SSC Asian Rhino Specialist Group - 1997 - 122 páginas
...translated into other languages. V) The Criteria for Critically Endangered, Endangered and Vulnerable CRITICALLY ENDANGERED (CR) A taxon is Critically Endangered...in the immediate future, as defined by any of the following criteria (A to E): A) Population reduction in the form of either of the following: 1) An... | |
 | Peggy L. Fiedler, Peter M. Kareiva - 1998 - 574 páginas
...individual. Surveys should be over a time frame appropriate to the taxon's life cycle and life form. A taxon is Critically Endangered when it is facing...in the wild in the immediate future, as defined by specified criteria. A taxon is Endangered when it is not Critically Endangered but is facing a very... | |
 | David J. Hafner - 1998 - 188 páginas
...as a naturalized population (or populations) well outside the past range. CR Critically Endangered: facing an extremely high risk of extinction in the wild in the immediate future (based on criteria specified in IUCN 1994). EN Endangered: not Critically Endangered, but facing a... | |
 | Tony Juniper, Mike Parr, Kim Franklin - 1998 - 596 páginas
...captivity or as a naturalised population well outside the past range. Critical!) Endangered birds face an extremely high risk of extinction in the wild in the immediate future, whilst Endangered species face a high risk of extinction in the wild in the near future. Those categorised... | |
 | Peter H. Gleick - 1998 - 326 páginas
...vulnerable according to the World Conservation Union's definition. Critically endangered species face an "extremely high risk of extinction in the wild in the immediate future"; endangered species face a "very high risk of extinction in the near future"; and vulnerable species... | |
 | Christopher Servheen - 1999 - 328 páginas
...assessed against the criteria. V) The Criteria for Critically Endangered, Endangered and Vulnerable CRITICALLY ENDANGERED (CR) A taxon is Critically Endangered...in the immediate future, as defined by any of the following criteria (A to E): A) Population reduction in the form of either of the following: 1 ) An... | |
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