Pacific Northwest

Pacific Northwest

Climates are characterized by moderate temperatures and high precipitation in winter and low growing season precipitation. There are strong moisture gradients with elevation.

Assimilated sites include a large number of long-term cone counts across the Cascades by Jerry Franklin.  Julie Jones and Dave Bell at the University of Oregon and USFS have been analyzing these data most recently. Seed-trap studies include the following:

Mount Ranier (MORA)

Wind River Experimental Forest (NEON WREF)

Franklin Network (many sites) 

 
Sites in the Pacific Northwest are ASRN, BAMT, BEPA, BERK, BJPA, BLLK, BMCR, CAMT, DECU, GLCR1, GLCR2, HEME, HUMT, IRMT, LLCR, LOPR1, MAPK, MEOV, MOLK, MORA, NOWI, PEPR, SAMT, SAPA, SIRK, SLBE, SMBR, STMT, STPA, TIRD, TUCR, WICR, WIMT1, WIMT2, WISP, WREF. “fruit” includes any reproductive structure bearing multiple seeds, including cones.
  Tree-years Seeds
Abies amabilis 22432 3592
abieAmab_fruit 0 9
Abies concolor 1424 0
Abies grandis 3009 73
Abies lasiocarpa 3440 1041
abieLasi_fruit 0 2
Abies magnifica 2966 0
Abies procera 9194 333
abieProc_fruit 0 3
Acer circinatum 10393 5
Acer glabrum 0 1
Alnus rubra 11 237
Callitropsis nootkatensis 575 3119
callNoot_fruit 0 551
Cornus nuttallii 8 0
Corylus cornuta 658 0
Gaultheria shallon 13 0
Holodiscus discolor 26 0
Menziesia ferruginea 18 0
Oemleria cerasiformis 2 0
Picea engelmannii 597 44
piceEnge_fruit 0 1
Picea sitchensis 1 40
Pinus contorta 148 92
pinuCont_fruit 0 9
Pinus lambertiana 813 0
Pinus monophylla 2593 6
Populus tremuloides 8 0
Pseudotsuga menziesii 1301 3261
pseuMenz_fruit 0 170
Rosa gymnocarpa 1 0
Rubus spectabilis 2 0
Taxus brevifolia 1953 50
Thuja plicata 542 14220
thujPlic_fruit 0 2404
Tsuga heterophylla 12366 88420
tsugHete_fruit 0 14779
Tsuga mertensiana 9275 5264
tsugMert_fruit 0 178
Vaccinium ovalifolium 75 0
Vaccinium parvifolium 1317 0