Zootope is the total habitat

Habitat

* Habitat , a place where a species lives and grows*Human habitat, a place where humans live, work or play** Space habitat, a space station intended as a permanent settlement...

 available for colonisation within any certain ecotope

Ecotope

Ecotopes are the smallest ecologically-distinct landscape features in a landscape mapping and classification system. As such, they represent relatively homogeneous, spatially-explicit landscape functional units that are useful for stratifying landscapes into ecologically distinct features for the...

 or biotope

Biotope

Biotope is an area of uniform environmental conditions providing a living place for a specific assemblage of plants and animals. Biotope is almost synonymous with the term habitat, but while the subject of a habitat is a species or a population, the subject of a biotope is a biological community.It...

 by animal life. The community of animals so established constitutes the zoocoenosis of that ecotope.

All these words (ecotope, biotope, zootope and others) describe environmental niches at very small scales of consideration. The rabbits and squirrels and mosquitoes of any suburban garden or village park, or the deer and wolves and birds of a wilderness ravine would each be deserving of the label.