Ecological investigations of the tundra Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska . ecologicalinvest00brow Year: 1975 108 FESTUCA RUBRA-LEAf LENGTHS FRANKLIN ORIGIN: BLUFFS SAGWON McKINLEY PARK 50 45 40 35 30 25 20 15 10 - < 5 - • • Palmer Transplant Garden 0 -o Prudhoe Transplant Garden -1 1 1972 73 74 72 73 74 72 73 74 YEARS Fig. 16. Leaf lengths of Festuca rubra over 3- year period. FESTUCA RUBRA-MO. OF FLOWERING CULMS FRANKLIN ORIGIN: BLUFFS SAGWON —• Palmer Transplant Garden —o Prudhoe Transplant Garden clearly evident in the height development
Ecological investigations of the tundra Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska . ecologicalinvest00brow Year: 1975 108 FESTUCA RUBRA-LEAf LENGTHS FRANKLIN ORIGIN: BLUFFS SAGWON McKINLEY PARK 50 45 40 35 30 25 20 15 10 - < 5 - • • Palmer Transplant Garden 0 -o Prudhoe Transplant Garden -1 1 1972 73 74 72 73 74 72 73 74 YEARS Fig. 16. Leaf lengths of Festuca rubra over 3- year period. FESTUCA RUBRA-MO. OF FLOWERING CULMS FRANKLIN ORIGIN: BLUFFS SAGWON —• Palmer Transplant Garden —o Prudhoe Transplant Garden clearly evident in the height development of Alopecurus alpinus. The shortest forms in both gardens originated in the coastal tundra region followed by the Brooks Range entry, northern interior biotype, and Kenai Peninsula entry, in order of increasing heights. The Kenai Peninsula entry of this species resembled the Colorado entries more than the other Alaskan entries. The Colorado and southcentral Alaska entries grew tall, spread rather loosely from a dense central tuft at Palmer, and adapted poorly to the arctic site. The other Alaskan entries produced a more dense and shorter growing mat of material at Palmer and grew well at Prudhoe. The south- central coastal material of Alaska may be more closely related to the alpine forms of the Rocky Mountains than to the northern Alaskan material. No apparent conclusions can be drawn from the study regarding the possible significance of different ploidy levels within a species. In Deschampsia the diploid (2n = 26) appeared somewhat superior in both gardens to the tetraploid (2n = 52) collected from an alpine site on Caribou Mountain. However, the tetraploid race from Copper Center outperformed the diploid race from there in the arctic garden, whereas at Palmer the reverse was true. The FESTUCA RUBRA -SHOOT WEIGHTS ORIGIN: 50 - 45 40 35 30 25 20 15 10 5 FRANKLIN BLUFFS SAGWON McKINLEY PARK , Palmer Transplant Garden o Prudhoe Transplant Garden 1972 —1— 73 —1 7
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