Photograph-derived counts of seed cones on white spruce (Picea glauca) trees at elevational (alpine) & lower (arctic) treelines at 19 research sites along a west-east gradient in Alaska's Brooks Range. Photographs are from a single angle and thus represent a "cone production index" rather than a complete count of all the cones on a tree. The general purpose of the sampling was to examine west-east variation in white spruce growth responses to changes in climate.
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Photograph-based seed cone counts of white spruce (Picea glauca) trees from treeline field sites across the Brooks Range, Alaska 2019-2022
Photograph-derived counts of seed cones on white spruce (Picea glauca) trees at elevational (alpine) & lower (arctic) treelines at 19 research sites along a west-east gradient in Alaska's Brooks Range. Photographs are from a single angle and thus represent a "cone production index" rather than a complete count of all the cones on a tree. The general purpose of the sampling was to examine west-east variation in white spruce growth and reproduction responses to changes in climatic gradients and ongoing climate change.
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« less
- Award ID(s):
- 1748773
- NSF-PAR ID:
- 10475448
- Publisher / Repository:
- NSF Arctic Data Center
- Date Published:
- Subject(s) / Keyword(s):
- ["Picea glauca","white spruce","Brooks Range","treeline","cone production","reproduction","seed cones","Arctic treeline"]
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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