What Makes A Species Vulnerable to extinction?
Endemism- Species that are restricted to a particular, small area, are more vulnerable to extinction. Rarity-Rarity is not the same thing as endeminsm, endemics can be very common in the restricted area where they do occur. “Naturally rare” species have low population densities, but may be widely distributed and have respectable population sizes. We do not completely understand the ecological factors that make some species “naturally rare”, but when a common species gradually becomes rare, it is often a prelude to extinction. “Naturally rare” species can be a challenge to conservation, because they are difficult to monitor and it is very difficult to ensure that sufficient habitat is set aside for them. Small Population Size-Small population sizes render a species very vulnerable to extinction, through reduced genetic variation via genetic drift, the potential for inbreeding depression, demographic stochasticity caused by random ecological disasters and, for sexual species, the small c
