Ecological Archives E091-172-A1

Peter N. Epanchin, Roland A. Knapp, and Sharon P. Lawler. 2010. Nonnative trout impact an alpine-nesting bird by altering aquatic insect subsidies. Ecology 91:2406–2415.

Appendix A. Map and physical characteristics of study lakes.

 

FigA1

   FIG. A1. Map of study area and basin-specific inset maps, California, USA. Within each basin, paired study lakes are circled with the same line type (e.g., solid or dashed); dark gray lakes are fishless and light gray lakes are fish-containing.



TABLE A1. Physical characteristics of study lakes, based on data collected from 1995–1997 (Knapp and Matthews 2000, Knapp et al. 2001, J. Erdman, personal communication 2008). Lakes are arranged by lake pair.

Basin

Lake ID

Lake name

Latitude*

Longitude*

Surface area (ha)

Perimeter (m)

Maximum depth (m)

Elevation (m)

Fish status

Humphreys

52103

Frog

37.2560

118.6800

0.8921

384

5

3630

absent

Humphreys

50167

Middle Humphreys

37.2660

118.6825

2.6619

797

2.75

3605

present

Humphreys

50219

Square

37.2660

118.7270

1.3765

488

3.5

3450

absent (removed)

Humphreys

50185

Mesa

37.2675

118.7205

11.8915

1484

5.75

3445

present

Humphreys

50170

Knob

37.2670

118.7485

3.4055

853

4.5

3362

absent (removed)

Humphreys

50708

Tomahawk

37.2575

118.7270

9.6488

1756

8.25

3399

present

French Canyon

50173

La Tete

37.3080

118.7060

1.0721

454

4.5

3512

absent

French Canyon

50216

Rust

37.2935

118.7075

1.6845

555

6.6

3548

present

Pinnacles

41001

Lower Pemmican

37.2565

118.8170

0.7538

429

5.5

3217

absent

Pinnacles

41005

Lower Big Chief

37.2645

118.8210

0.4866

304

6

3277

present

Pinnacles

40205

Pemmican

37.2605

118.8150

0.8082

356

4

3280

absent

Pinnacles

40199

Old Squaw

37.2735

118.8280

2.4325

677

8.7

3349

present

Pinnacles

40183

Big Moccasin

37.2760

118.8000

3.7375

1178

7

3386

absent

Pinnacles

40192

Negit

37.2815

118.8035

1.2819

580

4.2

3399

present

Big Pine

20823

Sixth Lake

37.1365

118.5125

3.1750

981

13

3381

absent (removed)

Big Pine

20852

Fifth Lake

37.1305

118.5090

8.5060

1469

15

3290

present

Big Pine

20812

Seventh Lake

37.1380

118.5170

1.3940

470

5

3411

absent (removed)

Big Pine

20841

Summit

37.1335

118.4995

1.3510

455

10

3338

present

Sixty Lake

10423

unnamed

36.8050

118.4190

9.0015

1247

21

3355

absent

Sixty Lake

10419

Fjord

36.8115

118.4300

5.7057

1490

24

3306

present

Sixty Lake

10422

unnamed

36.8080

118.4170

0.8365

461

3

3353

absent (removed)

Sixty Lake

10414

unnamed

36.8175

118.4245

0.8344

388

6

3279

present

Sixty Lake

10510

Fin

36.8085

118.4125

1.2511

424

6

3416

absent (removed)

Sixty Lake

10413

Tulip

36.8170

118.4220

4.5509

1244

14

3254

present

Sixty Lake

10418

Four Island

36.8125

118.4265

6.6835

1427

16

3295

absent

Sixty Lake

10415

Cotter Lake

36.8165

118.4270

1.6642

713

9

3295

present

* NAD 83/WGS 84.

Present at time of study.

LITERATURE CITED

Knapp, R. A., and K. R. Matthews. 2000. Non-native fish introductions and the decline of the mountain yellow-legged frog from within protected areas. Conservation Biology 14:428–438.

Knapp, R. A., K. R. Matthews, and O. Sarnelle. 2001. Resistance and resilience of alpine lake fauna to fish introductions. Ecological Monographs 71:401–421.


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