Urban wild

File:Bluff Creek and Playa Vista.jpg

New development on the Ballona Wetlands, Los Angeles, California

An urban wild is a remnant of a natural ecosystem found in the midst of an otherwise highly developed urban area.Template:SfnTemplate:Sfn

One of the most expansive efforts to protect and foster urban wilds is the aptly titled "Urban Wilds program" conducted in Boston, which had its start in 1977 off the back of a 1976 report by the Boston Planning & Development Agency (BPDA), formerly the Boston Redevelopment Authority (BRA).Template:Sfn

Utility

Urban wilds, particularly those of several acres or more, are often intact ecological systems that can provide essential ecosystem functions such as the filtering of urban run-off, the storing and slowing the flow of stormwater, amelioration of the warming effect of urban development, and generally benefiting local air quality.Template:SfnTemplate:Sfn

Typically, urban wilds are home to native vegetation and animal life as well as some introduced species.Template:SfnTemplate:SfnTemplate:Sfn Urban wilds are vital to species of migratory birds that have nested in a given area since prior to its urbanization.Template:SfnTemplate:SfnTemplate:Sfn

Preservation

Without formal protection, urban wilds are vulnerable to development. However, achieving formal protection of a large urban wild can be difficult. Land tenure of a single ecological area can be complex, with multiple public and private entities owning adjacent properties.Template:SfnTemplate:Sfn

Key strategies used in the preservation of urban wilds have included conservation restrictions that keep complex land tenure systems in place while protecting the entire landscape. Public/private partnerships have also been successful in protecting urban wilds.Template:Sfn

The urban wilds prioritized by municipalities tend to be partial wetlands that perform a range of ecological services while contributing to the biological diversity of the region.Template:Sfn

Passive parks

There is some discussion about whether natural areas that are not at an appropriate scale to perform significant ecosystem services should instead be categorized as passive parks as opposed to urban wilds. Smaller urban wilds are used for passive recreation and have less value to the city in terms of enhancing ecosystem function.Template:Sfn