a species with a small population, a species having a fragmented habitat in which individual populations are extremely isolated and the species has poor dispersal power, a species with a narrow or highly specialized niche, or a species which is particularly vulnerable to human activities.
species at risk because of low numbers or restricted range; although not in immediate danger, it could be at any time.
under endangered species protection legislation, a species that within 25 years will become endangered unless mitigating action is taken; see also endangered species.
A species that is considered at risk because it exists in low numbers or in restricted ranges, due to loss of habitat or other factors. Espèce vulnérable
A vulnerable species is one whose chances of extinction characterize it as threatened but not quite as endangered.