a species that normally lives and thrives in a particular ecosystem. This can include any species that developed with the surrounding habitat, and can be assisted by or affected by a new species
A species which is a part of the original fauna or flora of the area in question Natural barrier - Any area where lack of flammable material obstructs the spread of wildfires Natural soil - A soil having a pH value between 6 6 and 7 3 Nomex - Fire resistant synthetic material used in the manufacture of flight suits, pants and shirts used by firefighters Non-point source pollution - Pollution of diffuse origin not resulting from any discernible, confined or discrete conveyances or readily identifiable source Nutrients - Mineral elements such as nitrogen, phosphorus or potassium that are naturally present or may be added as fertilizer or a fire retardant
Species native to a particular geographic area Because they are part of an ecosystem where everything is interdependent, these species are adapted to local foods, soil and weather conditions, and pests and diseases Native plants, for example, need less water, fertilizer, and pesticides than species not adapted to that particular location
With respect to a particular ecosystem, a species that, other than as a result of an introduction, historically occurred or currently occurs in that ecosystem