Barber, Valerie A.

30 items:

Modeling spatial variability of white spruce (Picea glauca) growth responses to climate change at and below treeline in Alaska - a case study from two national parks Categories: Publication; Types: Citation; Tags: P2-Changes in Plant and Animal Species Due to Climate Change
Changes in forest productivity across Alaska consistent with biome shift Global vegetation models predict that boreal forests are particularly sensitive to a biome shift during the 21st century. This shift would manifest itself first at the biome?s margins, with evergreen forest expanding into current tundra while being replaced by grasslands or temperate forest at the biome?s southern edge. We evaluated changes in forest productivity since 1982 across boreal Alaska by linking satellite estimates of primary productivity and a large tree-ring data set. Trends in both records show consistent growth increases at the boreal?tundra ecotones that contrast with drought-induced productivity declines throughout interior Alaska. These patterns support the hypothesized effects of an initiating... Categories: Publication; Types: Citation; Tags: R1-Vulnerability Forest Species and Communities to Climate Change
Changes in forest productivity across Alaska consistent with biome shift Global vegetation models predict that boreal forests are particularly sensitive to a biome shift during the 21st century. This shift would manifest itself first at the biome?s margins, with evergreen forest expanding into current tundra while being replaced by grasslands or temperate forest at the biome?s southern edge. We evaluated changes in forest productivity since 1982 across boreal Alaska by linking satellite estimates of primary productivity and a large tree-ring data set. Trends in both records show consistent growth increases at the boreal?tundra ecotones that contrast with drought-induced productivity declines throughout interior Alaska. These patterns support the hypothesized effects of an initiating... Categories: Publication; Types: Citation; Tags: R1-Vulnerability Forest Species and Communities to Climate Change
Reconstruction of summer temperatures in interior Alaska from tree-ring proxies: Evidence for changing synoptic climate regimes Categories: Publication; Types: Citation; Tags: P3b-Vegatation Productivity Changes Due to Temperature change
Reduced growth of Alaskan white spruce in the twentieth century from temperature-induced drought stress Categories: Publication; Types: Citation; Tags: R1-Vulnerability Forest Species and Communities to Climate Change

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