The geographic range of the southern pine beetle Dendroctonus frontalis extends

Question

The geographic range of the southern pine beetle Dendroctonus frontalis extends from the southeastern U.S. gulf coast to the mid-Atlantic states. The number of generations produced per year diminishes steadily along the south-north axis of the southern pine beetle’s range. In the southernmost portion of its range, D. frontalis sometimes produces five generations per year, but in the northernmost portion it is limited to a single generation, with intermediate numbers of generations occurring at intermediate latitudes. How might you determine whether this is because there are different generation length ecotypes within the beetle’s range? What other factors might explain this phenomenon?

Explanation / Answer

southern pine beetle (SPB) is a beetle which attacks pine tree. It's scientific name is Dendroctonus frontalis.

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