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Raw cone counts of 20 spruce trees near Twin Lakes, Yukon (61.702424º, -135.935528º) on 1 September 2019

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DataONE2022-06-09 更新2024-06-08 收录
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https://search.dataone.org/view/doi:10.5063/F17P8WVH
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This dataset comprises raw counts of new unopened cones ("newcones") visible in the top 3 m of n = 20 spruce trees located near Twin Lakes, Yukon Territory (61.702424º, -135.935528º). The spruce trees were a mix of black spruce (Picea mariana) and white spruce (Picea glauca). Counts were obtained by counting cones visible in high-resolution photos of the tree crowns following protocols described in LaMontagne et al. (2005) Can. J. For. Res. 35(12): 3020–3026. All trees included were greater than 5 cm diameter at breast height (dbh; dbh values included here). The purpose of this dataset was to estimate the resource environment in which red squirrels were foraging as described in Jackson and Wishart (in prep). Contains comments regarding squirrel and squirrel midden activity in the area at the time of counts.
创建时间:
2022-06-09
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