term	definition
transplant instance	a transplant of a microbial strain or community from its native host or substrate to a different host population. A given study can involve multiple transplant instances, which are delineated based on non-substitutability of host populations or of transplant parameters
experimental conditions	a decision or step in a transplant instance where there is the potential for variation in ecological reality
level of EcoReality	the degree to which an experimental condition matches the conditions that a host–microbiome interaction would experience in a wild ecosystem. Each experimental condition possesses its own intrinsic EcoReality. Each transplant instance can also be assigned an EcoReality score