Answer:
Those that are used for human benefit
Step-by-step explanation:
A consumer specie is one that cannot make it's own food and must rely on the other forms of available biomass to get food. It is true that humans are able to change the eco-systems to suit their endeavors. This may be of no benefit to the native species in the area but can maximize food security initiatives by using it to herd or breed domesticated animals.
A changed eco-system would be feasible since the food that these animals consume will be brought in or grown.
Other animals that are not domesticated may find it difficult to adapt to a change in their ecosystem and may perish.