. Dispersal of white spruce seed on Willow Island in interior Alaska. White spruce Propagation; White spruce Alaska. E M L Season of dispersal Total (852) Riled (369). E M L Season of dispersal Total (648) Filed (121) Figure 2 (continued) Table 4—Mean number of filled white spruce seed (and percentage of all seed) per square meter dispersed along transects in cleared openings, by seed source area, on Willow Island for 1987 Number of filled seed (and percentage of all seed) dispersed into openings by distance from source in meters Source area 10 20 30 40 50 60 76 91 122 1-N 30(41) 42(62) 12(50)
. Dispersal of white spruce seed on Willow Island in interior Alaska. White spruce Propagation; White spruce Alaska. E M L Season of dispersal Total (852) Riled (369). E M L Season of dispersal Total (648) Filed (121) Figure 2 (continued) Table 4—Mean number of filled white spruce seed (and percentage of all seed) per square meter dispersed along transects in cleared openings, by seed source area, on Willow Island for 1987 Number of filled seed (and percentage of all seed) dispersed into openings by distance from source in meters Source area 10 20 30 40 50 60 76 91 122 1-N 30(41) 42(62) 12(50) 38(58) 16(57) 24(48) 46(49) 20(63) 30(50) 1-S 36(47) 22(79) 10(55) 8(80) 44(59) 20(38) 36(55) 34(41) 20(50) 1-E 86(66) 14(33) 24(27) 38(56) 50(49) 68(41) 38(31) 24(22) 34(61) 1-W 270(50) 36(53) 86(62) 38(43) 58(51) 14(64) 48(39) 78(63) 48(77) 9-N 444(34) 318(33) 258(38) 244(52) 234(44) 178(48) 152(42) 148(33) 9-S 186(35) 496(43) 136(38) 132(49) 82(42) 64(42) 52(36) 4( 9) 9-W 334(42) 128(31) 210(32) 138(38) 110(28) 108(37) 48(23) 86(44) 15-N 56(27) 46(38) 34(35) 56(39) 52(43) 26(46) 34(44) 12(21) 15-S 144(33) 80(34) 78(41) 18(25) 18(28) 28(21) 12(16) 8(14) 15-E 228(45) 200(52) 96(44) 34(24) 30(23) 8(11) 18(26) 8(19) 15-W 42(30) 60(48) 26(39) 44(46) 46(37) 22(26) 20(31) 12(19) — = traps not placed at this distance. Dispersal of Seed in Total seed and filled seed dispersed into opening differed greatly with source area Clearcut Units (table 4). Mean number of filled seed per square meter was 385 in unit 1, 1,430 in unit 9, and 399 in unit 15. There was little apparent relation between the number of seeds collected and the size of the seed source area: 9-S and 9-W produced similar numbers of both total and filled seed, yet 9-W was a narrow strip and 9-S was a large block of white spruce. Conversely, source area 9-N also was a narrow strip, yet it produced more seed. 9. Please note that these images are extracted from scanned page images that may have been digitally enhanced fo
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