Ecological Archives A016-065-A6

John J. Borkowski, P. J. White, Robert A. Garrott, Troy Davis, Amanda R. Hardy, and Daniel J. Reinhart. 2006. Behavioral responses of bison and elk in Yellowstone to snowmobiles and snow coaches. Ecological Applications 16:1911–1925.

Appendix F. SAS statistical software output from the a priori model for elk best supported by the data.

Estimates, standard errors, and P values for the AC logit and LR logit from the best a priori elk model. Values were extracted from SAS statistical software output given below.

Effect

AC logit estimate

AC logit SE(est)

P

LR logit estimate

LR logit SE(est)

P

Intercept

0.697

0.295

0.0183

0.665

0.276

0.0158

Sppnum

-0.354

0.376

0.3451

-0.715

0.294

0.0151

Dist

-2.225

0.460

0.0001

-0.923

0.522

0.0767

Cumvis

-0.002

0.001

0.1012

-0.002

0.001

0.1387

sppnum × dist

-0.783

0.270

0.0037

-0.220

0.199

0.2710

 
 
 
 
 
 
 

hact = AP

0.849

0.321

0.0082

0.021

0.344

0.9510

= D

-0.083

0.265

0.7552

-0.163

0.242

0.5024

= S

-0.032

0.179

0.8573

0.455

0.211

0.0066

= N

-0.734

0.211

0.0005

-0.313

0.299

0.1000

hab = A

-0.620

0.299

0.0379

0.069

0.272

0.7990

= F

-0.264

0.263

0.3156

-0.032

0.243

0.8960

= RD

3.336

0.633

0.0001

0.466

0.704

0.5077

= TH

-1.290

0.494

0.0090

-0.310

0.355

0.3833

= M

-1.163

0.325

0.0003

-0.194

0.267

0.4712

 
 
 
 
 
 
 

sppnum × hab= A

2.267

0.579

0.0001

1.144

0.538

0.0333

= F

0.648

0.375

0.0837

-0.128

0.317

0.6866

= RD

-1.958

0.776

0.0116

-1.023

0.646

0.1133

= TH

-0.783

0.811

0.3340

-0.081

0.459

0.8598

= M

-0.173

0.460

0.7068

0.088

0.324

0.7863

dist × hact = AP

0.463

0.338

0.1703

0.393

0.362

0.2776

= D

-0.195

0.226

0.3892

-0.024

0.197

0.9032

= S

-0.274

0.150

0.0677

-0.416

0.147

0.0046

= N

0.006

0.168

0.9735

0.047

0.156

0.7632

dist × hab = A

2.046

0.473

0.0001

0.602

0.527

0.2536

= F

2.087

0.454

0.0001

0.767

0.515

0.1364

= RD

-8.860

1.749

0.0001

-2.538

2.022

0.2094

= TH

2.250

0.503

0.0001

0.522

0.539

0.3332

= M

2.477

0.456

0.0001

0.648

0.517

0.2102

 




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