 Taxa which do not qualify for Conservation Dependent or Near Threatened. DATA DEFICIENT (DD) — A taxon is Data Deficient when there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distribution...  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
...Vulnerable Lower Risk Consevation Dependent - Near Threatened — Least Concern Data Deficient Not Evaluated DATA DEFICIENT (DD) A taxon is Data Deficient when...appropriate data on abundance and/or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk. Listing of taxa in... | |
 | Mohd. Khan bin Momin Khan, Nico J. van Strien, IUCN/SSC Asian Rhino Specialist Group - 1997 - 122 páginas
...for Conservation Dependent, but which are close to qualifying for Vulnerable. 3. Least Concern (Ic). Taxa which do not qualify for Conservation Dependent...appropriate data on abundance and'or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk. Listing of taxa in... | |
 | Nigel Maxted, B.V. Ford-Lloyd, J.G. Hawkes - 1997 - 474 páginas
...for Conservation Dependent, but which are close to qualifying for Vulnerable. 3. Least Concern (Ic) Taxa which do not qualify for Conservation Dependent...biology well known, but appropriate data on abundance and /or distribution are lacking. Data Deficient is therefore not a category of threat or Lower Risk.... | |
 | Daniel M. Brooks, Richard E. Bodmer, Sharon Matola - 1997 - 176 páginas
...information to make a direct, or indirect, assessment of its risk of extinction based on itsdistribution and/or population status. A taxon in this category...appropriate data on abundance and/or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk. Listing of taxa in... | |
 | Christopher Servheen - 1999 - 328 páginas
...the wild in the medium-term future, as defined by any of the criteria (A to D) on pages 307 and 308. LOWER RISK (LR) A taxon is Lower Risk when it has...biology well known, but appropriate data on abundance and/ or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk.... | |
 | Aljos Farjon - 1999 - 142 páginas
...for Conservation Dependent, but which are close to qualifying for Vulnerable. 3. Least Concern (Ic). Taxa which do not qualify for Conservation Dependent...appropriate data on abundance and/or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk. Listing of taxa in... | |
 | Noel F. R. Snyder - 2000 - 198 páginas
...for Conservation Dependent, but which are close to qualifying for Vulnerable. 3. Least Concern (Ic). Taxa which do not qualify for Conservation Dependent...biology well known, but appropriate data on abundance and/ or distribution is lacking. Data Deficient is therefore not a category of threat or Lower Risk.... | |
 | International Union for Conservation of Nature and Natural Resources - 2001 - 35 páginas
...Endangered, Vulnerable or Near Threatened. Widespread and abundant taxa are included in this category. DATA DEFICIENT (DD) A taxon is Data Deficient when...Data Deficient is therefore not a category of threat. Listing of taxa in this category indicates that more information is required and acknowledges the possibility... | |
 | Anthony Michael Hutson, Anthony M. Hutson, Simon P. Mickleburgh, P. A. Racey - 2001 - 272 páginas
...for Conservation Dependent, but which are close to qualifying for Vulnerable: 3. Least Concern (Ic). Taxa which do not qualify for Conservation Dependent...appropriate data on abundance and/or distribution is lacking. Data Deficient is, therefore, not a category of threat or Lower Risk. Listing of taxa in... | |
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