Home Archived March 16, 2018
(i)

Upper Midwest Environmental Sciences Center

Maps, Models, and Tools for Bird Conservation Planning

Modeling Avian Abundance: Results - Worm-eating Warbler

These are draft results under scientific review.

Modeling Avian Abundance: Results
  Avian Species-of-Concern in the Appalachian Mountains (Bird Conservation Region 28)

Worm-eating Warbler
Helmitheros vermivorus

Worm-eating Warbler

Worm-eating Warbler

AOU Code WEWA
Habitat Association Deciduous forest and damp, bushy ravines with dense undergrowth; also locally in regenerating clear-cuts; in migration, a variety of wooded habitats; in winter, primarily broadleaf forest with dense undergrowth (AOU 1998).
Nest Type and Location open-cup, midstory/canopy
Migration Status Neotropical

 

   

Worm-eating Warbler Predicted Relative Abundance Map
This map indicates predicted relative species abundance. The predicted count of any cell in the map represents the expected count if a Breeding Bird Survey route were centered on that cell.

Worm-eating Warbler Predicted Relative Abundance Map

Worm-eating Warbler Mean Abundance Map

Worm-eating Warbler Mean Abundance Map

Worm-eating Best Model

Worm-eating Warbler
Variable 2.50% Median 97.50%
Slope of the temporal trend -0.012 0.004 0.021
Proportion of the landscape in Deer Forage 0.162 0.335 0.499
Proportion of landscape in Wooded Wetland -0.551 -0.272 0.016
Mean Precipitation -0.801 -0.441 -0.089
Mean Wetness Potential -0.364 -0.076 0.212
Proportion of the landscape in Oak/Elm -0.155 0.066 0.275
Area-weighted Mean Patch Size of Forest@ -0.563 -0.232 0.086
Forest Edge Density -0.150 0.069 0.293
Proportion of landscape in Forest 0.587 0.990 1.395
Brown-headed Cowbird Relative Abundance -0.193 0.107 0.403
Acid Deposition -0.055 0.032 0.120
Soil pH -0.279 -0.028 0.225
Interaction of Acid Deposition and Soil pH -0.020 0.074 0.169
Intercept -3.449 -0.809 0.506
Observer Effect -2.405 -1.145 1.504
@ After adjusting for proportion of forest
 

Worm-eating Warbler Validation Plot

Worm-eating Warbler Validation Plot

Content manager: Wayne Thogmartin

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.umesc.usgs.gov/terrestrial/migratory_birds/bird_conservation/bcr28_worm-eating_warbler.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: January 29, 2016

August 10, 2007