Can the solar cycle and climate synchronize the snowshoe hare cycle in Canada? Evidence from tree rings and ice cores

Article Abstract:

There is a correlation between the dark marks in white spruce growth rings and the number of stems eaten by snowshoe hares. There is also possitive correlation between mark frequency and hare population. Ring marks and hare density were also positivelycorrelated with the number of sunspots and the correlograms constructed exhibited a cycle of 10 years. Snow accumulation was likewise demonstrated to be correlated with ring marks, hare population and sunspot numbers. These findings suggest a link between the solar cycle, climate, ring marks and hare population.

Snow, Tree-rings, Tree rings, Hares, Solar cycle

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Solar activity and mammal cycles in the northern hemisphere

Article Abstract:

The link between solar activity and mammal population cycles in the northern hemisphere is investigated. Time series and spatial analyses are performed. Cycle period is found to be related to body size, while cycle amplitude increases in higher latitudes. Both predator and plant trophic levels are commonly involved in triggering the cycle. The evidence suggests that weather factors could be influenced by sunspots so that solar activity indirectly synchronizes hare cycles via climate.

Equipment and supplies, Mammal populations, Solar activity

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Mast flowering and semelparity in bamboos: the bamboo fire cycle hypothesis

Article Abstract:

It is posited that predator satiation as a selective force is less of a factor in bamboo mast flowering, delayed reproduction and semelparity. Arguments include a life cycle punctuated by wildfires, which drive bamboo recruitment.

United States, South Africa, Statistical Data Included, Research, Genetic aspects, Plant genetics, Plants, Flowering of, Plant flowering, Bamboo, Wildfires

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