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Population ecology of insect invasions and their management.
During the establishment phase of a biological invasion, population dynamics are strongly influenced by Allee effects and stochastic dynamics, both of which may lead to extinction of low-densityExpand
Exploiting Allee effects for managing biological invasions.
It is described how tactics that strengthen an existing Allee effect or create new ones could be used to manage biological invasions more effectively, and the concept of Allee effects can be integral in risk assessments and in the prioritization of resources allocated to manage non-native species. Expand
Invasion speed is affected by geographical variation in the strength of Allee effects.
This work develops an approach to use empirical data on the gypsy moth, a non-indigenous invader in North America, to quantify the Allee threshold across geographical regions, and presents the first empirical evidence that geographical regions with higher Allee thresholds are associated with slower speeds of invasion. Expand
Spread of beech bark disease in the eastern United States and its relationship to regional forest composition
Beech bark disease (BBD) is an insect-fungus complex involving the beech scale insect (Cryptococcus fagisuga Lind.) and one of two canker fungi and has spread through a large portion of the range of beech, though generally at lower rates than that observed for associated tree species. Expand
Dispersal and Spatiotemporal Dynamics of Asian Longhorned Beetle (Coleoptera: Cerambycidae) in China
It is observed that tree size and number of existing emergence holes on a tree were significant positive predictors of new emergence holes, but it was not measured whether or not this had a significant effect on adult beetle abundance. Expand
Allee effects and pulsed invasion by the gypsy moth
Evidence for periodic pulsed invasions is described, defined as regularly punctuated range expansions interspersed among periods of range stasis, and it is indicated that suppressing population peaks along range borders might greatly slow invasion. Expand
Modeling Development in Grape Berry Moth (Lepidoptera: Tortricidae)
The Logan nonlinear model provided the best estimates of grape berry moth field development, and an improved degree-day model should use 8.41°C as a minimum base temperature threshold and 423.9 as the egg-to-adult degree- day requirement. Expand
Determinants of successful arthropod eradication programs
A global database developed to facilitate an analysis of arthropod eradication programs and determine the factors that influence eradication success and failure believes GERDA, as an online database, provides an objective repository of information that will play an invaluable role when future eradication efforts are considered. Expand
Comparison of methods for estimating the spread of a non-indigenous species
Aim To compare different quantitative approaches for estimating rates of spread in the exotic species gypsy moth, Lymantria dispar L., using county-level presence/absence data and spatially extensiveExpand
Estimating Spread Rates of Non-native Species: The Gypsy Moth as a Case Study
This chapter demonstrates the use of three methods, (i) square-root area regression, (ii) distance regression and (iii) boundary displacement, to estimate the rate of spread in the gypsy moth, Lymantria dispar, in the USA. Expand