Table 5. Model parameter estimates for supported (contained in 90% confidence set) Poisson regression models reflecting habitat usage hypotheses for male Bobolinks and male Savannah Sparrows based on point count data from May 21 to July 2, 2002 from the Champlain Valley of Vermont and New York.

  Bobolink   Savannah Sparrow
Visit Model Parameter Estimate SE   Model Parameter Estimate SE
 
1 3 INTERCEPT −4.384 1.195*   1 INTERCEPT −3.589 0.652*
    PROPOPEN2500 0.041 0.011*     HABITATSAVS 0.044 0.013*
    WOODEDEDGEDENSITY2500 0.014 0.008   2 INTERCEPT −2.49 1.186*
  10 INTERCEPT −4.839 1.351*     PROPOPEN500 0.025 0.012*
    PROPOPEN2500 0.054 0.013*     WOODEDEDGEDENSITY500 −0.008 0.008
    WOODEDEDGEDENSITY2500 0.015 0.008   6 INTERCEPT −1.585 0.512*
    LEGUME −0.006 0.009     AREA 0.065 0.028*
    FORB −0.004 0.013     WOODEDPERIMETER −1.438 0.756
    LITTERDEPTH −0.218 0.11          
    NUMBERCUTS −0.72 0.436          
    AREA −0.017 0.034          
    WOODEDPERIMETER 1.179 0.679          
 
2 1 INTERCEPT −1.839 0.471*   1 INTERCEPT −2.375 0.480*
    HABITATBOBO 0.035 0.011*     HABITATSAVS 0.03 0.010*
  2 INTERCEPT −1.171 0.956   6 INTERCEPT −0.904 0.410*
    PROPOPEN500 0.018 0.009     AREA 0.057 0.023*
    WOODEDEDGEDENSITY500 −0.005 0.006     WOODEDPERIMETER −1.556 0.617*
  3 INTERCEPT −2.014 1.008   8 INTERCEPT −1.171 0.84
    PROPOPEN2500 0.026 0.009*     LEGUME −0.01 0.01
    WOODEDEDGEDENSITY2500 0 0.008     DAND_FORB 0.015 0.009
  5 INTERCEPT −0.976 0.955     LITTERDEPTH −0.038 0.094
    NUMBERCUTS −0.788 0.499     NUMBERCUTS 0.382 0.408
    DAYSSINCECUT 0.019 0.023     DAYSSINCECUT 0 0.017
  7 INTERCEPT −1.046 1.004     AREA 0.056 0.025*
    LEGUME 0.014 0.009     WOODEDPERIMETER −1.417 0.638*
    FORB 0.016 0.01          
    LITTERDEPTH −0.031 0.098          
    NUMBERCUTS −0.965 0.547          
    DAYSSINCECUT 0.009 0.025          
  9 INTERCEPT −2.852 1.673          
    PROPOPEN500 0.025 0.012          
    WOODEDEDGEDENSITY500 −0.004 0.006          
    LEGUME 0.008 0.009          
    FORB 0.015 0.01          
    LITTERDEPTH −0.011 0.097          
    NUMBERCUTS −0.852 0.532          
    DAYSSINCECUT 0.02 0.026          
    AREA 0.013 0.031          
    WOODEDPERIMETER 0.605 0.851          
 
3 10 INTERCEPT −4.348 2.021*   1 INTERCEPT −2.688 0.612*
    PROPOPEN2500 0.047 0.012*     HABITATSAVS 0.037 0.012*
    WOODEDEDGEDENSITY2500 0.002 0.009   6 INTERCEPT −0.314 0.454
    LEGUME −0.015 0.017     AREA 0.039 0.029
    FORB 0.003 0.011     WOODEDPERIMETER −2.675 0.796*
    LITTERDEPTH −0.205 0.135          
    NUMBERCUTS −1.476 0.865          
    DAYSSINCECUT 0.023 0.026          
    AREA 0.035 0.026          
    WOODEDPERIMETER 0.541 0.673          
*95% confidence interval for parameter excludes zero.