Vegetation and Climate Change in Northwest America During the Past 125 kyr.-and-nbsp;
Cathy Whitlock and Patrick J. Bartlein (1997),
Nature 388: 59-61.
Abstract
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Figure 1.-and-nbsp; Pollen percentage diagram of selected taxa from Carp Lake cores 90 and 93.-and-nbsp; Pinus includes diploxylon-type (open curve) from P. contorta or P. ponderosa, haploxylon-type pollen (black curve) from P. monticola or P. albicaulis, an indeterminate Pinus pollen (shaded curve).-and-nbsp; A minimum of 350 terrestrial pollen grains was counted for each level and used as the pollen sum in calculating percentages.-and-nbsp; (Fig1.gif, 58KB / Fig1.pdf, 33KB) |
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Figure 2.-and-nbsp; Large-scale controls (July insolation anomalies at latitude 45 degrees North and global ice volume) and Carp Lake vegetation indices.-and-nbsp; The ratios of the sum of Pseudotsuga/Larix, Quercus and Cupressaceae pollen percentages to Picea pollen percentages (Pse + Que + Cup/Pic) and of total arboreal to total non-arboreal pollen (AP/NAP) provide an indicator of vegetation type and openness.-and-nbsp; The smoothed curves were drawn using a 'lowess' procedure.-and-nbsp; (Fig2.gif 57KB / Fig2.pdf 362KB) |
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Table 2.-and-nbsp; This is the figure caption for table 2. (Table2.gif 146KB / Table2.pdf 12KB) -and-nbsp; |