Ecological Services
Conserving the Nature of America in the Southwest Region
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Species Lists

Current Range - A species' Current Range comprises the areas within which it is thought or known to occur. Note that Current Range could be different than the species' historic range or Area of Influence.

Here are a couple options:

Go to

At this site, you will be able to:

  1. See a list of species for a selected state
  2. See the species profile page for a specified species
  3. See and download a list of species in a specified county
  4. There is also a selection pre-defined quick searches
Endangeerd Species search options

Go to

At this site, you will be able to:

  1. Search for information on a particular species
  2. See and download a list of species in a specified county
  3. There is also a selection pre-defined reports

ECOS species search options


Area of Influence - Under Section 7 of the Endangered Species Act of 1973, as amended, action agencies consult with the Service if their actions “may affect” listed species or designated critical habitat. The first step for the action agency in determining if consultation is appropriate is to determine if the species may be present in the action area, remembering that the “action area” as defined by the Act may be larger than the actual “project area.” With this in mind, in order for the IPaC system to provide accurate species lists, we develop “Areas of Influence.” These ranges do not necessarily identify only where the species is present, but rather, they identify the area within which any project should consider potential effects to the listed species. This will typically result in Areas of Influence encompassing larger areas than simply where the species is known to exist. For example, say an aquatic species occurs in only one small section of a stream, but in-water work upstream of that area could result in contaminants flowing downstream into where the species is located, thus impacting the listed species. Those effects warrant consideration under Section 7 and, as such, stream areas upstream of where the species is located may be included in the Area of Influence. While the field office may ultimately determine that Section 7 consultation is not appropriate based on the specifics of that project, it is appropriate to consider the potential effects to the species and prudent to let users know they should consider that species when evaluating their project.

Go to:

  1. Begin with project scoping (determining where the project is located)

image of portion of IPAC main page

  1. Define the project boundary by:

    Selecting "Map" and using the drawing tools (a)


    Selecting "State/County list" then selecting the appropriate state and one or more counties (b)


    Upload a previously created ESRI ArcGIS shapefile. It must be compressed to a .zip file (c)

    image of portion of IPAC project defining page

    Once the project location is defined, click "Continue"
  1. Select Project Type and "Continue" to get a Trust Resources List.


Last updated: September 16, 2020