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- Title
Investigating beetle communities in and around entry points can improve surveillance at national and international scale.
- Authors
Mas, Hugo; Santoiemma, Giacomo; Lencina, José Luis; Gallego, Diego; Pérez-Laorga, Eduardo; Ruzzier, Enrico; Rassati, Davide
- Abstract
Beetles are commonly moved among continents with international trade. Baited traps set up in and around entry points are commonly used to increase chances of early-detection of incoming species and complement visual inspections. A still underestimated benefit of this surveillance approach is the high number and diversity of collected bycatch species. In this study, we exploited a multiyear surveillance program carried out with baited traps at five Spanish ports and their surrounding natural areas to investigate i) the importance of identifying bycatch to more promptly detect nonnative species belonging to nontarget groups; ii) patterns of native and nonnative species richness and abundance inside the port areas vs. surrounding natural areas; iii) the occurrence of spillover events between natural areas surrounding ports and the port areas, and iv) whether the native species most commonly introduced into other countries are more abundant in port areas than in surrounding natural areas. A total of 23,538 individuals from 206 species representing 33 families were collected. The number and taxonomic diversity of the 26 bycatch nonnative beetle species testified that the identification of these unintentionally trapped species can provide additional information on ongoing invasions. Patterns of spillover and native species richness and abundance in port areas vs. surrounding natural areas highlighted a differential ability of different beetle families to colonize port areas. Finally, native species most commonly introduced into other countries were more abundant in port areas than in their surroundings, while the opposite trend occurred for native species that have not been introduced elsewhere. Our study highlighted that the use of traps baited with generic attractants can aid in early-detection of nonnative beetle species, and that the identification of native species can provide useful information on the risk of introduction in other countries.
- Subjects
INTRODUCED species; NATURE reserves; BEETLES; BYCATCHES; SPECIES diversity; INSPECTION &; review; PLANT invasions; HARBORS
- Publication
NeoBiota, 2023, Issue 85, p145
- ISSN
1619-0033
- Publication type
Article
- DOI
10.3897/neobiota.85.103904