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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