Complex sentence: Gap assessments can be done using the geographic information system (GIS): land maps that delineate topography, biological and geological features (forest cover, plains, rivers, etc.), boundaries, land ownership and use are overlaid with the distribution of wildlife species.
Split into simpler sentences: Gap assessments can be done using the geographic information system (GIS). Land maps that delineate topography, biological and geological features (forest cover, plains, rivers, etc.), boundaries, land ownership and use are overlaid with the distribution of wildlife species.