Sentences with phrase «scale insect populations»
«This work makes us think that increasing urbanization and rising temperatures associated with global climate change could lead to increases in scale insect populations, which could have correspondingly negative effects on trees like the red maple,» Dale says.
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«The urban and historical data are so well - aligned that we can view scale insect populations in cities as a preview of what to expect elsewhere,» Youngsteadt adds.
To test this prediction, Youngsteadt went to 20 sites where historical specimens were collected from 1970 to 1997 and sampled their modern scale insect populations.
«Recent studies found that scale insect populations increase on oak and maple trees in warmer urban areas, which raises the possibility that these pests may also increase with global warming,» says Dr. Elsa Youngsteadt, a research associate at NC State and lead author of a paper on the work.
Not exact matches
By evaluating the scale insect remains attached to each specimen, Youngsteadt estimated scale population density and compared it to the average August temperature for the year and place where the specimen was collected.
The mountain pine beetle (Dendroctonus ponderosae Hopkins, Coleoptera: Curculionidae, Scolytinae) is a native insect of the pine forests of western North America, and its populations periodically erupt into large - scale outbreaks.