Ecological Archives A015-050-A2

Etsuko Nonaka and Thomas A. Spies. 2005. Historical range of variability in landscape structure: a simulation study in Oregon, USA. Ecological Applications 15:1727–1746.

Appendix B. The elements of linear combinations and PC scores for the current, year 50, and year 100 landscapes under CPS for the Oregon Coast Range, Oregon, USA.

 

Current

Year 50

Year 100

Metric

PC1

PC2

PC1

PC2

PC1

PC2

Landscape

TCA

-0.686

-0.539

-1.283

-1.008

-0.640

-0.503

MPA

-0.705

-0.277

-0.632

-0.248

-0.814

-0.320

PACV

0.822

-0.423

-0.694

0.357

-0.161

0.083

LPI

0.623

-0.458

-0.505

0.371

-0.107

0.079

PD

-0.806

-0.330

-0.713

-0.292

-0.944

-0.387

ED

-0.460

-0.286

-0.735

-0.457

-0.442

-0.275

TECI

0.271

1.105

0.419

1.711

0.499

2.035

PAFRAC

2.768

3.987

3.596

5.180

4.176

6.015

SIEI

0.636

-0.825

0.176

-0.229

0.138

-0.179

MNN

0.466

0.344

0.373

0.275

0.338

0.250

NNCV

1.554

1.505

0.519

0.503

0.449

0.434

COHESION

0.677

-0.230

-1.292

0.439

-0.770

0.262

PROX

1.002

-1.021

-0.419

0.427

-0.132

0.134

SIMI

0.822

-0.687

-0.723

0.605

-0.296

0.248

IJI

0.507

-1.398

0.381

-1.051

0.420

-1.158

PC score

7.490

0.464

-1.532

6.582

1.714

6.717

             

Very open

PLAND

0.712

0.149

1.004

0.210

0.982

0.206

TCA

0.077

-0.016

0.187

-0.040

0.179

-0.038

MPA

-0.512

0.213

-0.281

0.116

-0.254

0.105

PACV

-0.371

0.085

-0.543

0.124

-0.378

0.086

LPI

-0.164

0.037

-0.206

0.047

-0.058

0.013

PD

0.652

16.659

0.729

18.631

0.661

16.888

ED

1.201

0.886

1.541

1.137

1.501

1.107

TECI

-0.458

-0.964

-0.389

-0.819

-0.378

-0.797

PAFRAC

-0.938

-3.537

-0.739

-2.786

-0.678

-2.557

MNN

-0.107

-0.715

0.085

0.565

0.051

0.342

NNCV

0.120

0.628

0.162

0.847

0.149

0.779

COHESION

-0.703

0.169

-0.549

0.132

-0.409

0.098

PROX

-0.587

0.076

-0.392

0.050

-0.271

0.035

SIMI

-0.007

-0.222

0.000

-0.012

-0.001

-0.033

IJI

0.003

-0.277

0.003

-0.267

0.003

-0.269

AI

-0.361

0.191

-0.225

0.119

-0.207

0.110

PC score

-1.441

13.361

0.388

18.057

0.892

16.075

             

Patchy open

PLAND

1.115

0.184

0.821

0.135

0.754

0.124

TCA

0.346

-0.041

0.097

-0.012

-0.174

0.021

MPA

-0.299

0.115

-0.344

0.133

-0.460

0.177

PACV

-0.047

0.007

-0.584

0.084

-0.882

0.127

LPI

0.123

-0.019

-0.400

0.062

-0.675

0.104

PD

1.781

30.782

1.072

18.520

1.192

20.596

ED

1.746

0.973

1.326

0.739

1.293

0.720

TECI

-0.321

0.713

-0.339

0.753

-0.326

0.724

PAFRAC

-0.226

-0.819

-0.651

-2.354

-0.655

-2.368

MNN

0.216

1.267

-0.029

-0.172

0.030

0.175

NNCV

0.087

0.744

0.067

0.573

0.070

0.593

COHESION

-0.207

0.042

-0.607

0.123

-0.909

0.184

PROX

-0.064

0.014

-0.478

0.107

-0.639

0.143

SIMI

-0.187

0.283

0.029

-0.044

-0.008

0.012

IJI

-0.278

0.276

-0.216

0.214

-0.207

0.205

AI

-0.258

0.108

-0.259

0.108

-0.391

0.164

PC score

3.525

34.628

-0.496

18.970

-1.988

21.702

             

Young

PLAND

1.240

-0.289

0.919

-0.214

0.540

-0.126

TCA

0.572

0.065

-0.006

-0.001

-0.202

-0.023

MPA

0.886

0.087

0.178

0.017

-0.239

-0.024

PACV

0.706

0.083

-0.416

-0.049

-0.478

-0.057

LPI

0.896

0.054

-0.112

-0.007

-0.198

-0.012

PD

-0.187

-0.316

-1.289

-2.182

-1.665

-2.819

ED

1.757

-1.664

1.703

-1.613

1.179

-1.116

TECI

-0.092

-0.643

-0.071

-0.492

-0.062

-0.433

PAFRAC

0.073

1.524

0.082

1.710

0.190

3.969

MNN

0.671

-3.656

0.634

-3.453

0.301

-1.642

NNCV

0.364

-2.673

0.340

-2.496

0.120

-0.881

COHESION

0.770

0.067

-0.084

-0.007

-0.478

-0.042

PROX

1.635

0.092

0.394

0.022

-0.068

-0.004

SIMI

-0.016

-0.145

0.033

0.296

-0.014

-0.128

IJI

-0.026

0.180

-0.031

0.213

-0.075

0.523

AI

0.210

-0.065

-0.323

0.100

-0.408

0.127

PC score

9.457

7.528

1.950

8.783

-1.560

3.987

             

Mature

PLAND

-1.005

-0.237

0.067

0.016

0.415

0.098

TCA

-1.320

0.309

-0.269

0.063

0.168

-0.039

MPA

-0.990

-0.163

-0.234

-0.039

0.032

0.005

PACV

-0.514

0.434

-0.115

0.097

0.281

-0.237

LPI

-1.070

0.424

-0.125

0.049

0.203

-0.081

PD

-0.941

0.185

-0.688

0.135

-0.551

0.108

ED

-0.588

-0.764

0.402

0.522

0.624

0.811

TECI

0.338

-2.161

0.419

-2.683

0.534

-3.418

PAFRAC

0.647

-3.326

1.069

-5.493

1.303

-6.692

MNN

-1.059

-3.600

-0.412

-1.399

-0.114

-0.388

NNCV

-0.359

-1.068

0.058

0.172

0.140

0.417

COHESION

-2.540

0.841

-0.111

0.037

0.298

-0.099

PROX

-0.973

0.067

-0.044

0.003

0.445

-0.031

SIMI

-0.294

-0.332

0.204

0.230

0.214

0.241

IJI

-0.310

0.582

-0.217

0.408

-0.029

0.054

AI

-1.074

0.432

-0.258

0.104

0.127

-0.051

PC score

-12.052

-8.376

-0.253

-7.776

4.092

-9.301

             

Early old-growth

PLAND

-1.437

-0.246

-1.386

-0.237

-1.221

-0.209

TCA

-1.239

0.348

-1.230

0.345

-1.096

0.308

MPA

-1.255

0.079

-1.178

0.074

-0.943

0.059

PACV

-0.800

0.795

-0.800

0.796

-0.723

0.720

LPI

-0.901

0.540

-0.905

0.542

-0.796

0.477

PD

1.278

-0.897

1.074

-0.754

0.734

-0.516

ED

-1.966

-2.367

-1.842

-2.217

-1.512

-1.820

TECI

0.258

-1.539

0.179

-1.070

0.132

-0.789

PAFRAC

0.879

-6.281

0.633

-4.524

0.546

-3.905

MNN

-2.150

-4.924

-2.349

-5.379

-1.305

-2.988

NNCV

-2.190

-4.271

-2.272

-4.430

-1.674

-3.264

COHESION

-2.649

0.204

-2.429

0.187

-1.508

0.116

PROX

-0.662

0.298

-0.656

0.295

-0.619

0.279

SIMI

-0.420

-0.911

0.227

0.493

-0.124

-0.269

IJI

-0.267

-0.186

-0.423

-0.295

-0.603

-0.421

AI

-1.671

0.679

-1.554

0.632

-1.128

0.458

PC score

-15.192

-18.679

-14.909

-15.543

-11.839

-11.764

             

Mid old-growth

PLAND

1.018

-0.056

1.019

-0.056

1.004

-0.055

TCA

0.870

0.458

0.875

0.461

0.849

0.447

MPA

1.171

0.346

1.170

0.345

0.966

0.285

PACV

0.591

0.785

0.599

0.795

0.576

0.764

LPI

0.703

0.701

0.712

0.711

0.689

0.688

PD

1.259

-4.607

1.261

-4.615

1.220

-4.463

ED

1.389

-0.889

1.390

-0.890

1.362

-0.873

TECI

0.757

-0.343

0.390

-0.177

0.163

-0.074

PAFRAC

0.799

-3.181

1.303

-5.187

0.858

-3.417

MNN

4.404

-5.286

3.966

-4.760

3.079

-3.695

NNCV

10.045

-15.007

4.116

-6.149

2.405

-3.593

COHESION

1.718

0.645

1.796

0.674

1.427

0.536

PROX

1.364

0.814

1.382

0.825

1.157

0.691

SIMI

0.374

-0.411

-0.134

0.147

0.076

-0.083

IJI

0.218

-0.201

0.351

-0.323

0.499

-0.460

AI

1.095

0.665

1.075

0.652

0.874

0.530

PC score

27.775

-25.568

21.272

-17.548

17.205

-12.772

             

Late old-growth

PLAND

NA

NA

NA

NA

-0.936

-0.419

TCA

NA

NA

NA

NA

-0.842

0.283

MPA

NA

NA

NA

NA

-1.284

0.422

PACV

NA

NA

NA

NA

-0.583

0.693

LPI

NA

NA

NA

NA

-0.738

0.612

PD

NA

NA

NA

NA

-1.388

-2.470

ED

NA

NA

NA

NA

-1.114

-0.981

TECI

NA

NA

NA

NA

-0.004

-0.279

PAFRAC

NA

NA

NA

NA

-4.412

-14.350

MNN

NA

NA

NA

NA

-4.077

-4.602

NNCV

NA

NA

NA

NA

-1.642

-2.693

COHESION

NA

NA

NA

NA

-1.552

1.008

PROX

NA

NA

NA

NA

-1.492

0.874

SIMI

NA

NA

NA

NA

-0.205

0.095

IJI

NA

NA

NA

NA

-0.551

1.219

AI

NA

NA

NA

NA

-1.164

0.798

PC score

NA

NA

NA

NA

-21.984

-19.790

   Notes: The values are eigenvector × standardized value* of the metrics. Eigenvectors are the component loadings of metrics for the first two principle components. The sum of those values makes the PC score.

* standardized value = (raw value – mean of HRV)/(standard deviation of HRV) (McCune and Grace 2002)

LITERATURE CITED

McCune, B., and J. B. Grace. 2002. Analysis of ecological communities. MjM software design, Gleneden Beach, Oregon, USA.



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