GLANSIS Database Search Guidance

List Generator and Fact Sheet Access

Use this search tool to generate species lists queried by basin, taxa, status or vector. This tool also allows users to quickly access introduction timelines and fact sheets that contain ecological information, risk assessment scores, management information, etc.

To obtain a list of all established species presently included in GLANSIS, use the following search criteria defaults (criteria are defined below):

If you prefer your list NOT to include species that are native to part of the Great Lakes basin, switch the category to Nonindigenous.

NOTE: all results must be interpreted as a minimum, and no query will return a list of all nonindigenous specied in the Great Lakes.

The geographic limiter allows selection of a single lake, lake basin, or specific HUC8s in addition to the full basin search. The map indicates the portion of the database searched (except for custom HUC 8 searches). This selector is interactive with the category selector. For example, when limiting the search to Lake Superior, the nonindigenous search will return all species nonindigenous to Lake Superior, regardless of whether they are native to another part of the Great Lakes (e.g., the species may be a range expander in Lake Erie). Likewise, when searching on a geographic subset, the fields in the data table will be limited to that geographic area. For the example of a search limited to Lake Superior, the date returned in the data table (Year First Collected in Selected HUCs) is the first date for Lake Superior, not the first date for the Great Lakes as a whole. Status (in selected HUCs) in this table includes only the status for the geographic area searched. Likewise, if one drills down past the fact sheet to the records, you will find only the records for Lake Superior if the initial search was so limited. To perform custom HUC searches, simply type in the 7-digit HUC 8 code (omit the 0 before the 4, e.g. instead of 04060101, type 4060101).

To access the full watchlist, simply switch the category selector to 'watchlist' along with the above defaults. Watchlist species cannot be queried by separate HUCs, the locational query pertains to the Great Lakes region as a whole. At present, only the group limiter (taxonomic group) is functional for the watchlist.

The search form will search for any part of a word. For example, common name = 'flea' will return all species with the word 'flea' in the common name – such as waterflea. The search engine does not support wildcards.

Map Explorer

Use this search tool to view and compare species' distributions across space and time, and/or to overlay distributions on top of GLAHF GIS layers. The distributions of up to three species can be mapped at one time. This tool also allows downloading of the GIS coordinate data. You may search in the following ways:

  1. Species to search: If you know the genus and species name you may search for that species directly by entering the corresponding 'genus [space] species' into the "Enter the name of one directly" field. Otherwise, fill out the taxonomic group. Wait for the "Family" field to load and then select the family you are interested in. Repeat for "Genus" and "Species".
  2. Search by HUC(s): If you know the 8-digit hydrological unit code(s) (HUC) that you are interested in querying, type in the 8-digit code in the corresponding field. Separate HUC codes by comma for searches within multiple HUCs.
  3. Search by state(s): If you would like search for ANS distributions within a specific Great Lake state, enter the 2-Letter State abbreviation in the corresponding field (e.g. IL for Illinois or WI, MI for Wisconsin and Michigan).
  4. Search by year(s): If you are interested in looking at a species' records at one year enter that year in the field. If you are interested in looking at records within a range of years enter the beginning year and the end year separated by a dash ('-') (1997-2008 will display specimen records on the map from that time frame). If you are interested in looking at records from multiple years, separate those years by a comma (1997, 1998, 2008 will display specimen records on the map from those years).

Note: GLANSIS also provides 14 'hot button' species that users can quickly map by simply clicking their picture.

Downloading Specimen Report Data and Associated References from Map Explorer Interface

After completing your species-specific query (see above instructions), you may download the report data in comma-delimited format. Simply copy the data in the 'Georeferenced Report Data' field and paste it into a text editor. Save the file as a CSV and open it in your favorite spreadsheet program.

Database Search Criteria Definitions