Many of the region's natural and physical resources, and many economically important activities, can be adversely affected by animal pests or by inadequate animal pest management. Animal pests are usually competitive and adaptable – they can threaten natural ecosystems and commercial crops.

The adverse effects of animal pests in the Bay of Plenty include:

• viability of rare or endangered species
• damage to agricultural, horticultural and silvicultural crops
• infection through transfer of disease eg. Bovine Tb
• threats to overseas markets and trade
• threats to human health and enjoyment
• deterioration of taonga
• deterioration of natural ecosystems
• reduced soil and water quality

Environment Bay of Plenty's Pest Animal Management Strategy aims to:

• avoid the introduction or dispersal of new animal pest species
• control the further dispersal of established animal pests
• control animal pest densities
• minimise the adverse effects of animal pests on the environment