A potential ecological niche or niches; (also) notional space consisting of such niches, habitats, or ecological roles that may be filled through the adaptation, evolutionary diversification, or migration of existing species.
Origin
1970s.
Definition of ecospace in US English:
ecospace
noun
A potential ecological niche or niches; (also) notional space consisting of such niches, habitats, or ecological roles that may be filled through the adaptation, evolutionary diversification, or migration of existing species.