Answer :
Final answer:
The references suggest that industrial-style pest management is controversial, and underline the importance of policy and risk assessment in managing invasive species at zoos, such as the National Zoo.
Explanation:
While the provided references do not contain a direct conclusion about pest management at the National Zoo, they touch upon broader issues of conservation, the challenges faced by zoos, and the importance of policy and risk assessment in managing invasive species. A conclusion that can be drawn from these references is that industrial-style approaches to pest management in zoos are sometimes seen as controversial and that there's a need for careful policy-making and risk assessment in dealing with invasive arthropods. Furthermore, these references highlight the significance of zoos in biodiversity conservation and stress the importance of evaluating and implementing effective pest control measures.
