Introduced species and their missing parasites

  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},
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… 
Introduced cryptic species of parasites exhibit different invasion pathways
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Parasites of Aquatic Exotic Invertebrates: Identification of Potential Risks Posed to the Great Lakes
This study presents a comprehensive inventory of parasites known to infect 38 species of exotic invertebrates established in the Great Lakes, as well as 16 invertebrate species predicted to arrive in the near future, all of them crustaceans.
Parasites of invasive freshwater fishes and the factors affecting their richness
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Tri-trophic ecology of native parasitic nest flies of birds in Tobago
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The results show that haemosporidian parasites in the house sparrows' native range are replaced by species from local host-generalist parasite fauna in the alien environments of North and South America, which rejects the Novel Weapon Hypothesis and is concordant with the Enemy Releasehypothesis.
Parasites and invasions: changes in gastrointestinal helminth assemblages in invasive and native rodents in senegal
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Host and parasite traits predict cross-species parasite acquisition by introduced mammals
It is found that higher parasite prevalence among established hosts increases the likelihood of acquisition, particularly for generalist parasites, and general rules to help anticipate novel host–parasite associations created by climate change and other anthropogenic influences are provided.
Prevalence and evolutionary relationships of haematozoan parasites in native versus introduced populations of common myna Acridotheres tristis
The enemy release hypothesis is tested with respect to two well studied blood parasite genera in native and six introduced populations of the common myna Acridotheres tristis to find a similar number of parasite lineages in native populations compared to all introduced populations.
Flames and Frogs – The Impact of Environmental Disturbances on Host-Parasite Dynamics
The results suggest that an introduced host along with one of its introduced parasites could have effects on native treefrog populations.
Parasites and invasions: changes in gastrointestinal helminth assemblages in invasive and native rodents in Senegal.


Release from Parasites as Natural Enemies: Increased Performance of a Globally Introduced Marine Crab
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.
Regulation of mouse colony abundance by Heligmosomoides polygyrus
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.
Exotic plant invasions and the enemy release hypothesis
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It is suggested that parasites contribute to mortality in malnourished hosts, exacerbating the effects of food shortage, and antimicrobial treatment of a group of animals increased daily survival rates in ewes and male lambs, although treated animals became re-infected as the ‘crash’ progressed.
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 estuarine
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 magnitude
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Community ecology theory as a framework for biological invasions
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A list of helminth parasites of starlings (Sturnus vulgaris L.) with reference to their geographic location was compiled, finding only 11 out of the list of 81 species were common to birds from both hemispheres.
Patterns of Invasions by Pathogens and Parasites
For thirty years I have read publications about this spate of invasions; and many of them preserve the atmosphere of first-hand reporting by people who have actually seen them happening, and give a