| Optimal habitat consists of open medium to tall grasslands fringed with an ecotone of woody vegetation. |
| The ecotone characteristics are also seen in plant and animal species, with range boundaries for both northern and southern species. |
| In the Pompidou's darkened rooms, another ecotone becomes visible: the overlap between objective and subjective realms. |
| Soil resource partitioning may have contributed to the stable coexistence of grasses and trees that form savannahs at this ecotone. |
| The result is a transition area or ecotone which epitomizes the next stage in development. |
| Golden-winged Warbler territories usually included a shrubby field with patches of herbs and shrubs, a field-forest ecotone and adjacent forest. |
