Výsledky vyhledávání - "Johnson, Evan C."

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Negative density-dependent dispersal of the mountain pine beetle in Alberta

Understanding the mountain pine beetle's dispersal patterns is critical for evaluating its threat to Canada's boreal forests. It is generally believed that higher beetle densities lead to increased long-distance dispersal due to aggregation pheromone

Externí odkaz: http://arxiv.org/abs/2410.09725

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Stratified dispersal explains mountain pine beetle's range expansion in Alberta

Autor: Johnson, Evan C., Brush, Micah, Lewis, Mark A.

The mountain pine beetle (MPB), a destructive pest native to Western North America, has recently extended its range into Alberta, Canada. Predicting the dispersal of MPB is challenging due to their small size and complex dispersal behavior. Because o

Externí odkaz: http://arxiv.org/abs/2409.05320

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Determinism vs. stochasticity in competitive flour beetle communities

Autor: Johnson, Evan C., Dallas, Tad, Hastings, Alan

As ecologists increasingly adopt stochastic models over deterministic ones, the question arises: when is this a positive development and when is this an unnecessary complication? While deterministic models -- like the Lotka-Volterra model -- provide

Externí odkaz: http://arxiv.org/abs/2409.05317

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The storage effect is not about bet-hedging or population stage-structure

Autor: Johnson, Evan C., Godoy, Oscar, Hastings, Alan

The storage effect is a well-known explanation for coexistence in temporally varying environments. Like many complex ecological theories, the storage effect is often used as an explanation for observed coexistence on the basis of heuristic understand

Externí odkaz: http://arxiv.org/abs/2201.06687

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