1932

Abstract

Biological invasions of marine habitats have been common, and many patterns emerge from the existing literature. In North America, we identify 298 nonindigenous species (NIS) of invertebrates and algae that are established in marine and estuarine waters, generating many “apparent patterns” of invasion: () The rate of reported invasions has increased exponentially over the past 200 years; () Most NIS are crustaceans and molluscs, while NIS in taxonomic groups dominated by small organisms are rare; () Most invasions have resulted from shipping; () More NIS are present along the Pacific coast than the Atlantic and Gulf coasts; () Native and source regions of NIS differ among coasts, corresponding to trade patterns. The validity of these apparent patterns remains to be tested, because strong bias exists in the data. Overall, the emergent patterns reflect interactive effects of propagule supply, invasion resistance, and sampling bias. Understanding the relative contribution of each component remains a major challenge for invasion ecology and requires standardized, quantitative measures in space and time that we now lack.

Loading

Article metrics loading...

/content/journals/10.1146/annurev.ecolsys.31.1.481
2000-11-01
2024-04-16
Loading full text...

Full text loading...

/content/journals/10.1146/annurev.ecolsys.31.1.481
Loading
/content/journals/10.1146/annurev.ecolsys.31.1.481
Loading

Data & Media loading...

Supplemental Material

Supplementary Data

  • Article Type: Review Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error