 | International Biological Programme - Nature - 1980 - 384 pages
...Data Books. In the early 1970s, however, the categories were modified to the following: Extinct (Ex) Endangered (E ) Taxa in danger of extinction and whose...are deemed to be in immediate danger of extinction. Vulnerable (K) Taxa believed likely to move into the 'Endangered' category in the near future if the... | |
 | Richard Fitter, Maisie Fitter - Nature - 1987 - 136 pages
...extinction and whose survival is unlikely if the causal factors continue operating. Included are those taxa whose numbers have been reduced to a critical...deemed to be in immediate danger of extinction...' Reduction in numbers, loss of habitat, and the immediate threat of extinction are all characteristics... | |
 | John Dransfield - Botany - 1988 - 48 pages
...exist in the wild after repeated searches of their type localities and other known or likely places. Endangered (E) Taxa in danger of extinction and whose...are deemed to be in immediate danger of extinction. Vulnerable (V) Taxa believed likely to move into the Endangered category in the near future if the... | |
 | T. R. New, N. Mark Collins - Butterflies - 1991 - 46 pages
...causing recent decline continue to operate. This category includes taxa whose numbers have already been reduced to a critical level or whose habitats have been so changed or reduced that they may be in imminent danger of extinction. It also includes taxa which are... | |
 | K.J. Gaston - Nature - 1994 - 220 pages
...exist in the wild after repeated searches of their type localities and other known or likely places. Endangered (E) Taxa in danger of extinction and whose...are deemed to be in immediate danger of extinction. Vulnerable (V) Taxa believed likely to move into the Endangered category in the near future if the... | |
 | I.F. Spellberg - Nature - 1994 - 280 pages
...subspecies) in danger of extinction and whose future survival is unlikely if the factors continue to operate. Included are taxa whose numbers have been reduced to a critical level or whose habitats have been drastically reduced so that they are thought to be in immediate danger of extinction. Examples of species... | |
 | Dennis Victor Johnson - Palms - 1996 - 128 pages
...exist in the wild after repeated searches of their type localities and other known or likely places. Endangered (E). Taxa in danger of extinction and whose...have been so drastically reduced that they are deemed in immediate danger of extinction. Vulnerable (V). Taxa believed likely to move into the Endangered... | |
 | IUCN/SSC Orchid Specialist Group - Ecological surveys - 1996 - 176 pages
...other likely places. This category includes species extinct in the wild but surviving in cultivation. Endangered (E) Taxa in danger of extinction and whose...reduced to a critical level or whose habitats have been drastically reduced that they are deemed to be in immediate danger of extinction. Vulnerable (V) Taxa... | |
 | David Briggs, Stuart Max Walters - Nature - 1997 - 538 pages
...of extinction and whose survival is unlikely if the causal factors continue operating. Included here are taxa whose numbers have been reduced to a critical level or whose habitats are so drastically reduced that they are deemed to be in danger of extinction. V: Vulnerable species... | |
 | B. S. Chauhan - Environmental sciences - 2008 - 392 pages
...causing their decline continue to operate are referred to as endangered species.. These are the species whose numbers have been reduced to a critical level...habitats have been so drastically reduced that they are in immediate danger of extinction. The various characteristics of endangered species are : • small... | |
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Taxa in danger of extinction and whose survival is unlikely if the causal factors continue operating. Included are taxa whose numbers have been reduced to a critical level or whose habitats have been so drastically reduced that they are deemed to be in... 