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&...

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Bibliographic Details
Main Authors: Colin Maher, Patrick Sullivan, Roman Dial, Rebecca Hewitt
Format: Dataset
Language:unknown
Published: Arctic Data Center 2023
Subjects:
Picea glauca
white spruce
Brooks Range
treeline
cone production
reproduction
seed cones
Arctic treeline
Arctic
Wind River
The Cones
Timber Lake
Firth River
Timber Creek
Climate change
Alaska
Online Access:https://doi.org/10.18739/A2NS0M02D
Description
Summary: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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