Ecological Archives A017-071-A2

Phoebe L. Zarnetske, Thomas C. Edwards, Jr., and Gretchen G. Moisen. 2007. Habitat classification modeling with incomplete data: pushing the habitat envelope. Ecological Applications 17:1714–1726.

Appendix B. Best-fit Northern Goshawk nest site and nest area habitat and null envelope model coefficients and their significance.

TABLE B1. Best-fit Northern Goshawk nest site (30-m) and nest area (250-m) habitat and null envelope model coefficients and their significance. Order of cover type and forest type categories are in the order entered into the GLM in R.

 

Model type

Resolution

Habitat envelope

Null

 30-m

(Model: NS-CONASP ∩ ELEV3)

Yij = - 3.73***
  -  0.07 (SLP)***
  + 0.08 (FHT)***
  + 0.16 (CBH)***

(Model: NS-Null4)

Yij = - 2.56**
  -  0.06 (SLP)***
  + 0.07 (FHT)***
  + 0.12 (CBH)***
  - 0.02  (HCC)*

 

250-m

(Model: NA-QMD3)

Yij = - 1.92***
  - 3.71 (pinyon/juniper)***
  + 1.41 (Douglas-fir)*
  + 2.74 (ponderosa pine)***
  + 2.43 (white fir)***
  - 0.24 (Engelmann spruce)
  + 0.61 (Engelmann spruce/subalpine fir)
  + 0.98 (lodgepole pine)
  + 0.61 (aspen)
  + 0.53 (oak woodland)
  + 0.04 (cercocarpus woodland)
  - 0.09 (SLP)***
  + 0.07 (GRW)***

 

(Model: NA-Null3)

Yij = - 1.99***
  - 3.78 (pinyon/juniper)***
  + 1.40 (Douglas-fir)*
  + 2.48 (ponderosa pine)***
  + 2.60 (white fir)***
  - 0.14 (Engelmann spruce)
  + 1.03 (Engelmann spruce/subalpine fir)
  + 1.42 (lodgepole pine)*
  + 0.70 (aspen)
  + 1.01 (oak woodland)
  + 0.44 (cercocarpus woodland)
  - 0.08 (SLP)***
  + 0.06 (GRW)***

 

   Note: * P < 0.05; ** P < 0.01; ***P < 0.001. † not significant

‡ R Project for Statistical Computing: http://www.r-project.org



[Back to A017-071]