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Climate Change and Forest Disturbances
tudies of the effects of climate change on forestshave focused on the ability of species to tolerate tem-perature and moisture changes and to disperse,but they haveignored the effects of disturbancesExpand
Assessing the consequences of global change for forest disturbance from herbivores and pathogens.
This work identifies 32 syndromes of biotic disturbance in North American forests that should be carefully evaluated for their responses to climate change and suggests a list of research priorities that will allow us to refine these risk assessments and adopt forest management strategies that anticipate changes inBiotic disturbance regimes and mitigate the ecological, social, and economic risks. Expand
Causes of cyclicity of Epirrita autumnata (Lepidoptera, Geometridae): grandiose theory and tedious practice
This work reviews possible causes of cycles of E. autumnata under both local and regional scenarios, including large-scale synchrony, and identifies the factors that tend to produce outbreaks with a periodicity of about 10 years. Expand
Results challenge the view that tannins provide an evolutionarily stable plant defense because of their uniform chemical properties, and suggest that the same tannin can have different effects on different herbivores. Expand
Linking Breeding and Wintering Ranges of a Migratory Songbird Using Stable Isotopes
It is shown that most birds wintering on western Caribbean islands come from the northern portion of the species' North American breeding range, whereas those on more easterly islands are primarily from southern breeding areas, indicating considerable population mixing with respect to breeding longitude. Expand
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. Expand
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. Expand
Symbiosis and competition: complex interactions among beetles, fungi, and mites
These relationships may be best understood by considering the manner in which symbioses vary with time and resources, and the degree to which other species may affect interactions among symbionts. Expand
Consequences of climate change for biotic disturbances in North American forests
About one-third of North America is forested. These forests are of incalculable value to human society in terms of harvested resources and ecosystem services and are sensitive to disturbance regimes.Expand
Impact of minimum winter temperatures on the population dynamics of Dendroctonus frontalis.
Testing whether minimum winter temperatures are a meaningful driver of pestilence from Dendroctonus frontalis (the southern pine beetle) across the southeastern United States found that they are but a weak driver, but average population growth rate matched theoretical predictions of a process-based model of winter mortality from low temperatures. Expand