Sep 30, 2005

Host-parasitoid spatial ecology: a plea for a landscape-level synthesis

Proceedings. Biological Sciences
James T Cronin, John D Reeve

Abstract

A growing body of literature points to a large-scale research approach as essential for understanding population and community ecology. Many of our advances regarding the spatial ecology of predators and prey can be attributed to research with insect parasitoids and their hosts. In this review, we focus on the progress that has been made in the study of the movement and population dynamics of hosts and their parasitoids in heterogeneous landscapes, and how this research approach may be beneficial to pest management programs. To date, few studies have quantified prey and predator rates and ranges of dispersal and population dynamics at the patch level--the minimum of information needed to characterize population structure. From host-parasitoid studies with sufficient data, it is clear that the spatial scale of dispersal can differ significantly between a prey and its predators, local prey extinctions can be attributed to predators and predator extinction risk at the patch level often exceeds that of the prey. It is also evident that populations can be organized as a single, highly connected (patchy) population or as semi-independent extinction-prone local populations that collectively form a persistent metapopulation. A prey and...Continue Reading

  • References27
  • Citations34

References

Mentioned in this Paper

Fertility
Study
Host-Parasite Interactions
Research
Crops, Agricultural
Spatial Distribution
Extracellular Matrix
Avian Crop
Predator
LUC7L3 gene

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