NAWCA 2007-2 Butte & Colusa Basins Wetlands Project

Status Completed County Butte, Colusa, Glenn, Sutter, Tehama
Project Type Non-mitigation Location Not Mapped
Project Area (Acres) 18,607 Last Updated 16 December 2020
Project Abstract The North American Wetlands Conservation Act (NAWCA) program provides matching grants to wetlands conservation projects in support of the North American Waterfowl Management Plan, an international agreement that provides a strategy for the long-term protection of habitats needed by waterfowl and other migratory birds in North America.
Project Groups Central Valley Joint Venture | NAWCA

Project Identification

NAWCA-3724 NAWCA - Project Number

Habitat Plan

ActivitySubActivitiesHabitatSubHabitatAcresActivity StatusWater Regime
Acquisition/Preservation/Protection Conservation Easement Palustrine Wetland Emergent Freshwater Marsh 505.0 Completed Managed non-tidal
Enhancement Unspecified Palustrine Wetland Emergent Freshwater Marsh 13,293 Completed Managed non-tidal
Restoration/Re-establishment Unspecified Palustrine Wetland Emergent Freshwater Marsh 1,103 Completed Managed non-tidal
Acquisition/Preservation/Protection Conservation Easement Upland Unknown/Unspecified 2,824 Completed None
Enhancement Unspecified Upland Unknown/Unspecified 847.0 Completed None
Restoration/Re-establishment Unspecified Upland Unknown/Unspecified 35.00 Completed None

Related Habitat Impacts

HabitatAcres LostType of Loss
No Data


NAWCA 2007-2 Butte & Colusa Basins Wetlands Project Completed 18,607


DateTypeDescriptionSite Name
2009-03-01 Project end date
2007-03-01 Project start date


Contact Lily Douglas USFWS - U.S. Fish and Wildlife Service Not applicable/Unknown


Acquisition/Preservation/Protection California Wildlife Conservation Board $2,447,358
Acquisition/Preservation/Protection USFWS North American Wetlands Conservation Act $1,000,000
Acquisition/Preservation/Protection California Bay-Delta Authority $913,056
Acquisition/Preservation/Protection California Department of Fish and Wildlife $447,567
Acquisition/Preservation/Protection USBR U.S. Bureau of Reclamation $351,949
Acquisition/Preservation/Protection Ducks Unlimited, Inc. $303,386
Acquisition/Preservation/Protection NRCS Natural Resources Conservation Service $210,999
Acquisition/Preservation/Protection USFWS - U.S. Fish and Wildlife Service $121,263
Acquisition/Preservation/Protection California Department of Conservation $100,600
Acquisition/Preservation/Protection Unknown/Unspecified Private Funder $83,572
Acquisition/Preservation/Protection River Partners $37,223
Acquisition/Preservation/Protection Chico Country Day School $31,906
Acquisition/Preservation/Protection Student & Landowner Education & Watershed Stewardship Program $3,900
Acquisition/Preservation/Protection Parrot Investment Company $2,200

Related CRAM Assessments

Visit DateVersionSite NameWetland TypeIndex Score
No Data

No files found.

How to Use the Habitat Development Curve

Habitat Development Curves (HDCs) are used to determine the developmental status and trajectory of on-the-ground projects to create, restore, or enhance California wetland and stream habitats. Each HDC is based on assessments of habitat condition for different age areas of one habitat type that in aggregate represent the full spectrum of habitat development. The assessments of condition are provided by expert applications of the California Rapid Assessment Method (CRAM). Visit the CRAM website for more information about CRAM.

For each HDC, reference condition is represented by areas of a habitat that consistently get very high CRAM scores, have not been subject to disruptive management practices, and exist within landscapes that are protected and managed for their natural conditions. The horizontal lines intersecting the top of an HDC represent the mean CRAM score and standard deviation of scores for 25 qualifying reference areas.

The age of a project is estimated as the elapsed time in years between the groundwork end date for the project and the date of the CRAM assessment. To add or update a groundwork end date, use the Project Events form in Project Tracker ( The minimum age in years of a non-project area, including any natural reference area, is estimated from all available local information, including historical maps and imagery, historical written accounts, and place-specific scientific studies of habitat development.

An HDC can be used to address the following questions:

  1. At what time in the future will the area of assessed habitat achieve the reference condition or other milestones in habitat development? The HDC can answer this question if the CRAM score for the assessed area is within the confidence interval of the HDC. The answer is the time in years along the HDC between the current age of the assessed area and the future date corresponding to the intersection of the HDC and the reference condition or other milestone.
  2. Is the area of assessed habitat likely to develop faster, slower, or at the same pace as most other areas of the same habitat type? The habitat area is likely to develop faster, slower, or at the same pace if the CRAM score for the area is above, below, or within the confidence interval of the HDC, respectively.
  3. What can be done to improve the condition of the habitat area or to increase its rate of development? HDCs by themselves cannot answer this question. Possible answers can be inferred by the following analysis that involves HDCs:
    1. Examine the HDC for each of the four CRAM Attributes;
    2. Identify the Attribute(s) scoring below the HDC;
    3. For any low-scoring Attribute, examine the component Metric Scores (note: the Metric Scores for any public CRAM assessment in the CRAM database can be obtained through EcoAtlas);
    4. Assume the low score of an Attribute is due to its low-scoring Metric(s);
    5. Consider modifying the design or management of the habitat area in ways that will sustainably increase its score(s) for the low-scoring Metric(s).

For more information about CRAM Attributes and Metrics, including their scientific rationale, see the CRAM Manual.

Display Habitat Development Curves For Wetland Type:

CRAM Site Scores