• Publications
  • Influence
Climate and the northern distribution limits of Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae)
The physiologically based models provide a tool for guiding land management decisions in forests and illustrate a general approach for predicting the regional effects of climatic patterns on the distribution of organisms.
Nitrogen budgets of phloem-feeding bark beetles with and without symbiotic fungi
A general model for the N budgets of herbivorous insects that identifies the possible combinations of dietary and physiological parameters that can allow developmental success on low-nutrient diets and developed a general nutrient-budget model for D. frontalis larvae.
Cold Tolerance of Four Species of Bark Beetle (Coleoptera: Scolytidae) in North America
Investigation of the overwintering biology of four temperate-latitude bark beetles found that I. perroti, a northerly distributed species, had similar cold tolerance and overwinter behavior as northern populations of the other two Ips species.
Strong indirect interactions of Tarsonemus mites (Acarina: Tarsonemidae) and Dendroctonus frontalis (Coleoptera: Scolytidae)
Tarsonemus mites close a loop of species interactions that includes a commensalism (mites and beetles), a mutualism ( mites and O. minus), asymmetric competition (O. minus and mycangial fungi), and another mutualism(s) (mycangia fungi and beetles).
Mutualism and Antagonism: Ecological Interactions Among Bark Beetles, Mite and Fungi
This work focuses on bark beetles and their associated organisms, in particular, on the relationship between the southern pine beetle and its associates in coniferous trees of the southern USA.
Host Use Patterns by the European Woodwasp, Sirex noctilio, in Its Native and Invaded Range
The European woodwasp, Sirex noctilio, which is not a pest in its native forests, is a serious invasive pest in the southern hemisphere, and now has an uncertain future in North America after its introduction there.
Population biology of the European woodwasp, Sirex noctilio, in Galicia, Spain
The abundance, basic biology, host use patterns and natural enemies of native S. noctilio in Galicia, Spain, reported on, showed that body size and fecundity were highly variable and lower than previously reported from the Southern Hemisphere.