Introduced species and their missing parasites

@article{Torchin2003IntroducedSA,
  title={Introduced species and their missing parasites},
  author={Mark E Torchin and Kevin D. Lafferty and Andrew P. Dobson and Valerie J. McKenzie and Armand M. Kuris},
  journal={Nature},
  year={2003},
  volume={421},
  pages={628-630}
}
Damage caused by introduced species results from the high population densities and large body sizes that they attain in their new location. Escape from the effects of natural enemies is a frequent explanation given for the success of introduced species. Because some parasites can reduce host density and decrease body size, an invader that leaves parasites behind and encounters few new parasites can experience a demographic release and become a pest. To test whether introduced species are less… Expand
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References

SHOWING 1-10 OF 27 REFERENCES
Release from Parasites as Natural Enemies: Increased Performance of a Globally Introduced Marine Crab
TLDR
A global assessment of the effect of parasitism and predation on the ecological performance of European green crab populations found that introduced species suffer less from parasites compared to populations where they are native. Expand
Parasites and marine invasions
TLDR
This review compares the prevalence and species richness of parasites in several introduced populations of marine species with populations where they are native and examines the evidence for a relationship between parasite presence and the success of introduced marine species. Expand
Release of invasive plants from fungal and viral pathogens
TLDR
Broad, quantitative support is reported for two long-standing hypotheses that explain why only some naturalized species have large impacts against native species, and indicates that invasive plants' impacts may be a function of both release from and accumulation of natural enemies, including pathogens. Expand
Regulation of mouse colony abundance by Heligmosomoides polygyrus.
  • M. Scott
  • Biology, Medicine
  • Parasitology
  • 1987
TLDR
A detailed long-term study on the impact of the direct life-cycle nematode Heligmosomoides polygyrus on a breeding population of laboratory mice provides a clear example of the ability of helminths to regulate host abundance. Expand
Exotic plant invasions and the enemy release hypothesis
TLDR
Competitive release through greater generalist enemy impact on natives seems to be an important but understudied mechanism of enemy release, but there is a serious need for experiments involving exclusion of natural enemies in invaded plant communities. Expand
Modelling Crustacean Fisheries: Effects of Parasites on Management Strategies
TLDR
This work developed mathematical models to investigate the impact of protection of females on a hypothetical fishery for different combinations of host and parasite recruitment dynamics. Expand
Non-indigenous species as stressors in estuarine and marine communities: Assessing invasion impacts and interactions
Invasions by non-indigenous species (NIS) are recognized as important stressors of many communities throughout the world. Here, we evaluated available data on the role of NIS in marine and estuarineExpand
The role of nematode parasites in Soay sheep (Ovis aries L.) mortality during a population crash.
TLDR
In early 1989, two-thirds of the Soay sheep population on St Kilda died over 12 weeks, with emaciated carcasses and considerable nematode burdens, with protein-energy malnutrition as the probable cause of death. Expand
QUANTIFYING THREATS TO IMPERILED SPECIES IN THE UNITED STATES
Biologists are nearly unanimous in their belief that humanity is in the process of extirpating a significant portion of the earth's spe­ cies. The ways in which we are doing so reflect the magnitudeExpand
REGULATION AND STABILITY OF HOST-PARASITE POPULATION INTERACTIONS
SUMMARY (1) Three categories of biological processes are shown to have a destabilizing influence on the dynamical behaviour of model host-parasite associations: parasite induced reduction in hostExpand
...
1
2
3
...