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Parasites and marine invasions
M E Tourchin1, K D Lafferty, A M Kuris
1Marine Science Institute and Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara 93106, USA. torchin@lifesci.ucsb.edu
Parasitology
|October 25, 2002
Summary
Marine invasions are a growing threat. This review explores how parasites, often reduced in introduced species, may influence invasion success and impact native ecosystems.
Area of Science:
- Marine Biology
- Ecology
- Invasive Species Research
Background:
- Introduced marine species pose significant environmental and economic threats globally.
- Increased globalization has accelerated the rate of marine biological invasions.
- Invasive species often exhibit higher densities and larger sizes in introduced ranges.
Purpose of the Study:
- To explore the role of parasites in mediating marine invasions.
- To investigate the hypothesis that reduced natural enemy effects, particularly parasites, contribute to invasion success.
- To examine the potential impact of introduced parasites on native marine ecosystems.
Main Methods:
- Review of existing data on marine parasites and their hosts.
- Comparison of parasite prevalence and species richness between native and introduced populations.
- Development of a theoretical framework to model invasion success based on parasite interactions.
Main Results:
- The role of parasites in marine invasions is relatively unexplored.
- Data suggest introduced species may experience reduced parasite loads compared to native ranges.
- Further research is needed to quantify the impact of parasites on invasion dynamics.
Conclusions:
- Parasites may play a crucial role in the success of introduced marine species.
- Understanding parasite-host dynamics is essential for managing marine invasions.
- Introduced parasites could pose a threat to native marine biodiversity.