Global patterns in marine dispersal estimates: the influence of geography, taxonomic category and life history
Open accessAbstract
We examine estimates of dispersal in a broad range of marine species through an analysis of published values, and evaluate how well these values represent global patterns through a comparison with correlates of dispersal. Our analysis indicates a historical focus in dispersal studies on low-dispersal/low-latitude species, and we hypothesize that these studies are not generally applicable and representative of global patterns. Large-scale patterns in dispersal were examined using a database of correlates of dispersal such as planktonic larval duration (PLD, 318 species) and genetic differentiation ( F ST , 246 species). We observed significant differences in F ST ( p <0.001) and PLD ( p <0.001) between taxonomic groups (e.g. fishes, cnidarians, etc.). Within marine fishes (more than 50% of datasets), the prevalence of demersal eggs was negatively associated with PLD ( R 2 =0.80, p <0.001) and positively associated with genetic structure ( R 2 =0.74, p <0.001). Furthermore, dispersal within marine fishes (i.e. PLD and F ST ) increased with latitude, adult body size and water depth. Of these variables, multiple regression identified latitude and body size as persistent predictors across taxonomic levels. These global patterns of dispersal represent a first step towards understanding and predicting species-level and regional differences in dispersal, and will be improved as more comprehensive data become available.
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Temperate and Subarctic fish species are sometimes characterized by long pelagic larval duration and extensive larval drift.
“Temperate and Subarctic fish species, for example, are sometimes characterized by long pelagic larval duration and extensive larval drift (Bradbury et al., 2008).”
From Evolutionary and ecological constraints of fish spawning habitats (2015) · cites this paper as Bradbury et al., 2008
The Results and Discussion (sections 3–4; page unavailable) associate longer pelagic larval duration in marine fishes with higher latitude, and the Discussion supports increased dispersal in temperate species. The paper does not establish extensive larval drift in Temperate or Subarctic fish; it cautions that longer larval duration may not translate into dispersal. (LLM, conf=0.84)
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- Authors
- Bradbury, I. R., Laurel, B., Snelgrove, P. V. R., Bentzen, P., & Campana, S. E.
- Affiliations
- Dalhousie University (CA)
- NOAA National Marine Fisheries Service (US)
- Memorial University of Newfoundland (CA)
- Bedford Institute of Oceanography (CA)
- Corresponding author
- Bradbury, Ian R
- Venue
- Proceedings of the Royal Society B: Biological Sciences
- Publisher
- The Royal Society
- Published
- 2008-04-29
- Volume
- 275
- Issue
- 1644
- Pages
- 1803-1809
- ISSN
- 0080-4649 (ISSN-L)
- 0962-8452
- 1471-2954
- PMC
- PMC2587791
- OpenAlex
- W2169033099
- Cited by
- 316
- References
- 46
- Citations by year
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- FWCI
- 10.09
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the Royal Society B Biological Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Killam Trusts
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
- Physical Sciences › Environmental Science › Ecology › Coral and Marine Ecosystems Studies
- Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
- Keywords
- planktonic larval duration, genetic differentiation, FST, demersal eggs, marine fish, Cnidaria, life history, body size, latitude, water depth, taxonomic differences
- MeSH terms
- Animals, Fishes, Ecosystem, Animal Migration
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