| atmosphere(noun, context, climate, ambient, clime) |
| attribute(noun, being, essence, quiddity, essentiality) |
| authority on ecological economics(expression, nature, feature, environment) |
| available ecological niche(expression, nature, feature, environment) |
| axiom of ecological kinship(expression, nature, feature, environment) |
| axiom of submission to ecosystem laws(expression, nature, feature, environment) |
| axiom of the social construction of ecosystems(expression, nature, feature, environment) |
| backdrop(noun, atmosphere, context, climate, ambient) |
| background(noun, atmosphere, context, climate, ambient) |
| backwoods(noun, nature, environment, part, world) |
| badland(noun, nature, environment, part, world) |
| barren(noun, nature, environment, part, world) |
| being(noun, essence, quiddity, essentiality) |
| benefit of ecological facilitation(expression, nature, feature, environment) |
| benefits for ecological health(expression, nature, feature, environment) |
| biodiversity extinction(expression, nature, feature, environment) |
| biodiversity of ecological community(expression, nature, feature, environment) |
| biogeography(noun, biology, study, science) |
| biomass pyramid(expression, nature, feature, environment) |
| bionomics(noun, biology, study, science) |