Reduced Complexity Models for Aquatic Habitat Suitability at the Regional Scale


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Created: Feb 22, 2021 at 4 p.m.
Last updated: Jan 28, 2022 at 2:21 a.m.
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Abstract

Methods that accurately identify suitable aquatic habitat with minimal complexity are need to inform resource management. Habitat suitability models intersect environmental variables to predict habitat quality, but previous approaches are spatially and ecologically limited, and are rarely validated. This study estimated aquatic habitat at large spatial scales with publicly-available national datasets. We evaluated 15 habitat suitability models using unique combinations of percent mean annual discharge (MAD), velocity, gradient, and stream temperature to predict monthly habitat suitability for Bonneville Cutthroat Trout and Bluehead Sucker in Utah. Environmental variables were validated with observed instream conditions and species presence observations verified habitat suitability estimates. Results indicated that simple models using few environmental variables best predict habitat suitability. Stream temperature best predicted Bonneville Cutthroat Trout presence, and gradient and percent MAD best predicted Bluehead Sucker presence. Additional environmental variables improved habitat suitability accuracy in specific months, but reduced overall accuracy.

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Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Utah
North Latitude
42.7100°
East Longitude
-107.2400°
South Latitude
35.4100°
West Longitude
-115.1500°

Temporal

Start Date:
End Date:

Content

Related Resources

The content of this resource is derived from USFS. "National Stream Internet." https://www.fs.fed.us/rm/boise/AWAE/projects/NationalStreamInternet.html
The content of this resource is derived from U.S. Geological Survey. 'National Water Information System.' https://waterdata.usgs.gov/nwis?
The content of this resource is derived from USFS. 'NorWeST Regional Database and Modeled Stream Temperatures.' https://www.fs.fed.us/rm/boise/AWAE/projects/NorWeST.html
The content of this resource is derived from EPA and USGS. 'National Hydrography Dataset Plus Version 2.' https://nhdplus.com/NHDPlus/
The content of this resource is derived from USACE. 'National Inventory of Dams.' https://nid.sec.usace.army.mil/ords/f?p=105:1::::::
The content of this resource is derived from Federal Highway Administration. 'National Bridge Inventory.' https://www.fhwa.dot.gov/bridge/nbi.cfm

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Utah Division of Wildlife Resources Modeling Aquatic Habitat Suitability and Connectivity in Utah Rivers 191466
National Science Foundation CAREER: Robust Aquatic Habitat Representation for Water Resources Decision-Making 1653452

How to Cite

Goodrum, G., S. Null (2022). Reduced Complexity Models for Aquatic Habitat Suitability at the Regional Scale, HydroShare, http://www.hydroshare.org/resource/038fb5d085324d1abb21060b96ef220a

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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