One of the costs of agricultural development in Western Australia over the past 100 years has been the loss of most of the native vegetation and, consequently, massive reductions in the numbers of most of our native fauna. Thirteen mammal species are extinct and many bird and mammal species are extinct in some areas. These losses will increase as remnant native vegetation degrades under the impact of nutrients washed and blown from farmland, from the invasion by weeds and from grazing sheep.
Even kangaroos are affected. Unless the community manages remnant vegetation to minimise degradation and enhance the regeneration of native plants, kangaroos and some other native species will disappear from much of the Western Australian wheatbelt over the next 100 years.
"Can kangaroos survive in the wheatbelt?,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 31
, Article 4.
Available at: http://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol31/iss1/4