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grl25722-sup-0001-readme.txtplain text document3Kreadme.txt
grl25722-sup-0002-txts01.txtplain text document25KText S1. Supporting information.
grl25722-sup-0003-fs01.jpgimage/pjpeg916KFigure S1. Images of light rings in Pinus banksiana trees.
grl25722-sup-0004-fs02.jpgimage/pjpeg141KFigure S2. Relationship between proportions of light rings and seasonal means of daily maximum temperatures.
grl25722-sup-0005-fs03.jpgimage/pjpeg1275KFigure S3. Composite maps of maximum temperature, precipitation, cloud cover, and Palmer Drought Severity Index relative to the climatological means for years during which light rings were observed in more than 1% of the samples.
grl25722-sup-0006-fs04.jpgimage/pjpeg202KFigure S4. Annual proportion of trees in the sampled population that has recorded a light ring with 95% confidence intervals.
grl25722-sup-0007-fs05.jpgimage/pjpeg310KFigure S5. Occurrence rate of light rings recorded in more than 5.0%, 2.5%, and 1.0% of the samples.
grl25722-sup-0008-fs06.jpgimage/pjpeg177KFigure S6. Proportion of trees that recorded a light ring expressed as a function of tree age.
grl25722-sup-0009-fs07.jpgimage/pjpeg797KFigure S7. April to September seasonal means of daily minimum and maximum temperatures extracted from BioSIM.
grl25722-sup-0010-fs08.jpgimage/pjpeg68KFigure S8. Temperature estimates versus observations, 1900–2006.
grl25722-sup-0011-ts01.txtplain text document1KTable S1. Analysis of variance for years with no light rings, years with few light rings, and years with abundant light rings, with maximum monthly temperatures for the reference period of 1900–2006.
grl25722-sup-0012-ts02.txtplain text document1KTable S2. Analysis of variance for years with no light rings, years with few light rings, and years with abundant light rings, with total precipitation for the reference period of 1900–2006.

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