ecological

Etymology

ecology + -ical

adj

1. Relating to ecology, the interrelationships of organisms and their environment.
   Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents. 2013 May-June, Katie L. Burke, “In the News”, in American Scientist, volume 101, number 3, page 193
2. Not harmful to the environment.