DEFINITION OF OVERABUNDANCE
Defining overabundance is problematic because it is a value judgement influenced by the specific circumstances of a specific species in a given situation. Populations of free-ranging native mammals are often considered overabundant if adverse impacts such as habitat degradation, human-wildlife conflict or animal health and welfare concerns arise as a consequence of the population size or location.
The overall abundance of many native mammal species is often low relative to historical abundance. However, high densities can occur at a local scale and the term ‘locally overabundant’ is more appropriate in many circumstances. Some examples of threatened or endangered species that are considered locally overabundant include koalas at various locations in Vic. (Whisson et al. 2016), black-footed rock-wallabies (Petrogale lateralis) in the wheat belt of WA (Willers et al. 2015) and Proserpine rock-wallabies (P. persephone) on Hayman Is. in Qld.2.
More on the topic DEFINITION OF OVERABUNDANCE:
-
Veterinarian -