Calcarius

Grassland

Comprised of grasses and broadleaved herbaceous plants, and are either without woody plants.

Wetlands (inland)

Characterized by waterlogged soils, seasonal or permanent water, and vegetation adapted to saturated conditions.

Marine intertidal

Area of the shore between the extremes of high and low tides.

Artificial terrestrial

Human-made environments such as urban areas, agricultural lands, and transport corridors.