Sentence examples for empty ecological from inspiring English sources

Elk then spread into some of the empty ecological niches, and about 12,000 years ago their southward spread was halted by deserts.

But, contrary to that suspicion, Dr Feakins has shown that early humanity's east African homeland was never heavily forested, so the idea that people were constrained to walk upright by the disappearance of the forests is wrong.Perhaps it was more pull than push a pre-existing, but empty ecological niche crying out to be filled by an enterprising species that could make the transition.

Conversely, new species that evolved in the Richmondian occupied small geographic ranges, suggesting radiation into empty ecological niches, including the specialist niches vacated by the extinction of the Maysvillian taxa (Stigall 2010a).

Animals diversified by expanding into empty ecological roles rather than by direct competition with each other.

Beside the decreased chance of empty ecological niches but the increased probability of competitors that preclude invasion success, diverse communities are assumed to use resources more completely and, therefore, limit the ability of invaders to establish [5], [7], [8].

There are myriad factors that promote spectacular biodiversity on islands, but the factors that contribute to neoendemism ultimately derive from the fact that the islands formed de novo with no connection to a larger landmass and thus have abundant "empty" ecological niche space.

In the wake of the extinction, many groups underwent remarkable adaptive radiations — a sudden and prolific divergence into new forms and species within the disrupted and emptied ecological niches resulting from the event.

The island was established around 37 Ma, providing an empty geographical and ecological space facilitating evolutionary radiations.

Long-term survival past the boundary was assured as a result of filling ecological niches left empty by extinction of non-avian dinosaurs.

Attempts to determine the mechanisms of invasiveness by exotic species have focused primarily on ecological (such as empty niche [4] and enemy release [5]) and evolutionary hypotheses (such as evolution of increased competitive ability [6] and founder events) [7].

Would giraffes?Such questions are easier on Ascension, where the ecological canvas was almost empty to begin with, than in the other novel ecosystems that humans are, mostly by accident, setting up around the planet.