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- 1Northwestern Minnesota
- 1Plant secondary compounds
- 1Population biology
Can the solar cycle and climate synchronize the snowshoe hare cycle in Canada? Evidence from tree rings and ice coresDownload
Dark marks in the rings of white spruce less than 50 yr old in Yukon, Canada, are correlated with the number of stems browsed by snowshoe hares. The frequency of these marks is positively correlated with the density of hares in the same region. The frequency of marks in trees germinating between...