Shrub Seed Banks in Mixed Conifer Forests of Northern California and the Role of Fire in Regulating Abundance

Fire Ecology

Table 1 Sites in northern California at which the shrub seed bank was sampled, arranged from north to south, listing land ownership, date of most recent fire (wildfire or prescribed burn), date sampled, and topographic attributes. Most sites had no record of fire (dashes indicate no record, or were last burned >15 yr ago). Each sample consisted of three composited subsamples, except at the McCloud site where only one collection was made per sample. At the McCloud site, half of the samples were collected from adjacent unburned areas. At the Jennie Springs site, six of the samples were collected from unburned patches within the burn units. NF= National Forest; BLM = Bureau of Land Management.

Site No.	Site name	Land ownership	Last burned	Date sampled	Samples (n)	Aspect (degree)	Slope (%)	Elevation (m)
1	McCloud	Shasta-Trinity NF	Oct 88	1 Nov 88	56	270	2	1150
2	Horse	Shasta-Trinity NF	-	10 Aug 88	10	82	5	1410
3	Big Poison	Lassen NF	-	12 Jul 88	10	141	14	1210
4	Underground	Shasta-Trinity NF	-	21 Jul 87	10	268	21	1282
5	Flower	Shasta-Trinity NF	-	2 Aug 82	10	52	18	1380
6	Hatchet	Ukiah District BLM	-	4 Aug 88	10	313	3	1545
7	Jennie Springs	Lassen NF	Jul, Oct 83	Sep 87	19	135	<10	1890
8	Rush	Lassen NF	-	6 Sep 88	10	55	13	1160
9	Soda	Lassen NF	-	7 Sep 88	10	95	8	1120
10	Galen	Plumas NF	-	7 Jul 87	10	254	31	1020
11	Brush	Plumas NF	-	17 Aug 88	10	186	11	1025
12	Bald	Plumas NF	-	23 Aug 88	10	258	14	980
13	Mt. Hope	Plumas NF	-	24 Aug 88	5	294	27	960
14	Hamburger	Plumas NF	-	16 Aug 88	10	3	9	930
15	Bridger	Tahoe NF	-	21 Sep 88	10	223	6	995
16	Pendola	Tahoe NF	-	19 Sep 88	10	98	10	975
17	Cummings	Plumas NF	-	30 Jun 87	10	82	27	960
18	Sleighville1	Tahoe NF	Mar 88	29 Aug 88	10	241	20	1035
19	Sleighville2	Tahoe NF	-	30 Aug 88	10	313	8	1075
20	Washington	Tahoe NF	-	27 Sep 88	10	251	11	1190
21	White Cloud	Tahoe NF	-	12 Sep 88	10	335	12	1220
22	Five Mile	Tahoe NF	-	14 Sep 88	10	139	12	1150
23	Pilliken	Eldorado NF	Aug 73	28 Jul 87	10	270	28	1770
24	Dennis Spring	Eldorado NF	-	14 Jul 87	10	200	10	1770