Answer:
No, the butterflies may not have a natural predator in this environment; thus, they could displace native species that consume nectar
Step-by-step explanation:
The escaped butterfly are considered an exotic species in their new environment. Exotic species in a new environment can establish themselves and sometimes outcompete or have selectional advantage over native species in that environment, eventually displacing the native species.
Hence, that some of the butterflies were allowed to escape into the environment is not environmentally safe for the native species in that environment.