Intervening in pest outbreaks: Simulation studies with the western tent caterpillar

@article{Thompson2006InterveningIP,
  title={Intervening in pest outbreaks: Simulation studies with the western tent caterpillar},
  author={W. A. Thompson and Ilan Vertinsky and WILLIAM G. Wellington},
  journal={Researches on Population Ecology},
  year={2006},
  volume={23},
  pages={27-38}
}
A stochastic model mimicking the behavior of the western tent-caterpillar populations on Vancouver Island was used to study methods of suppressing an outbreak. Since many forest defoliators often receive only one treatment during their outbreak period, we applied a hypothetical single treatment at different times during a simulated outbreak, to assess the influence of timing. Intervening early in the cycle was the best method of suppressing numbers below a tolerable threshold during a… 

References

SHOWING 1-10 OF 21 REFERENCES
The dynamics of outbreaks: Further simulation experiments with the western tent caterpillar
TLDR
It is demonstrated that climatic release is inextricably linked with a population's qualitative profile and spatial distribution and even vigorous populations could not achieve outbreak status unless they were initially concentrated in a sufficiently large refuge close enough to potentially suitable habitats to permit rapid immigration into such places as soon as their local climates improved.
Degrees of heterogeneity and the survival of an insect population
TLDR
The results of simulation experiments with a stochastic model incorporating internal and external sources of heterogeneity suggest that the western tent caterpillar is a risk spreader of a type discussed by Den Boer (1968) that can survive periods of bad weather and then expand rapidly in an improved climate.
A stochastic model for assessing the effects of external and internal heterogeneity on an insect population
TLDR
The field work spanned the period when ecologists were beginning to consider the array of strategies and tactics organisms have developed in transitory habitats and heterogeneous environments, and provided unique data on the spatial, temporal, numerical and qualitative changes in an insect population as it increased and decreased in its natural setting.
Qualitative Changes in Populations in Unstable Environments
Inactive moths of Malacosoma pluviale (Dyar) oviposit near their birthplaces, and most of their offspring also are inactive. More active moths can travel farther before they oviposit, and always have
Returning the Insect to Insect Ecology: Some Consequences for Pest Management
TLDR
Populations will respond most consistently and predictably to management policies that exploit the effects which some of their members have on the numbers and structure of subsequent generations, and pest management would be better served by methods that would selectively discriminate against reproductively superior members of a generation.
INDIVIDUAL DIFFERENCES AS A FACTOR IN POPULATION DYNAMICS: THE DEVELOPMENT OF A PROBLEM
TLDR
In this study, an outbreak of the western tent caterpillar, Malacosoma pluviale (Dyar), was studied in detail during 1956, and the importance of individual variation in the population dynamics of an insect was assessed.
Harvesting strategies, control styles and information levels: A study of planned disturbances to a population
The first paper in this series (WELLINGTON e~ al., 1975) descr ibed a s tochas t ic model for assessing the effects of physiological and environmental va r i ab i l i ty on the population dynamics of
Some Maternal Influences on Progeny Quality in the Western Tent Caterpillar, Malacosoma pluviale (Dyar)
TLDR
There is evidence that the differences in feeding rate and food capacity displayed by the different types of females during their own larval stage affect the proportions of the various types of progeny per egg mass as well as the viability of consecutive groups of eggs within the mass.
QUALITATIVE CHANGES IN NATURAL POPULATIONS DURING CHANGES IN ABUNDANCE
This is an extension of earlier studies of the effects of individual differences on population dynamics. The test species is the western tent caterpillar, Malacosoma pluviale (Dyar), which exhibite...
Low Volume Applications to Citrus Trees: Method for Evaluation of Spray Droplet Distributions
TLDR
The method is designed to indicate tree areas which receive no or only limited droplet depositions rather than to characterize or emphasize the quantitative aspects of the coverage accomplishment.
...
...