Early Detection Rapid Response

An invasion curve depicts the spread of invasive species over time and the cost of that spread. The longer an infestation goes untreated, the bigger the cost - to the resources as well as monetarily.

The invasion curve is adapted from Invasive Plants and Animals Policy Framework, State of Victoria, Department of Primary Industries, 2010. NPS Graphic/S. Sparhawk

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The Invasion Curve

Early Detection Rapid Response

Early Detection and Rapid Response (EDRR) means locating invasive species just as they are beginning to invade a particular area and quickly treating the new infestation. This concept is fundamental to effective invasive species management.

Early identification and treatment makes successful control more likely and can save critical funding and resources for the park. EDRR relies upon a strong communication network and the education of visitors, neighbors, and employees about potential invaders.

EDRR is illustrated in the invasion curve. If an invasive plant or animal species is not detected and recoved early, expensive and long-term management may be unavoidable.