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Networks of global bird invasion altered by regional trade ban

AutorInnen: 
Reino, L., Figueira, R., Beja, P., Araújo, M. B., Capinha, C., Strubbe, D.
Erscheinungsjahr: 
2017
Vollständiger Titel: 
Networks of global bird invasion altered by regional trade ban
Autor/-innen des ZFMK: 
Org. Einordnung: 
Publiziert in: 
Science Advances
Publikationstyp: 
Zeitschriftenaufsatz
DOI Name: 
10.1126/sciadv.1700783
Keywords: 
invasive species, global bird invasion, trade ban
Bibliographische Angaben: 
Reino, L., Figueira, R., Beja, P., Araújo, M. B., Capinha, C., Strubbe, D. (2017): Networks of global bird invasion altered by regional trade ban. - Science Advances 3(11): e1700783; doi: 10.1126/sciadv.1700783
Abstract: 

Wildlife trade is a major pathway for introduction of invasive species worldwide. However, how exactly wildlife trade influences invasion risk, beyond the transportation of individuals to novel areas, remains unknown. We analyze the global trade network of wild-caught birds from 1995 to 2011 as reported by CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). We found that before the European Union ban on imports of wild-caught birds, declared in 2005, invasion risk was closely associated with numbers of imported birds, diversity of import sources, and degree of network centrality of importer countries. After the ban, fluxes of global bird trade declined sharply. However, new trade routes emerged, primarily toward the Nearctic, Afrotropical, and Indo-Malay regions. Although regional bans can curtail invasion risk globally, to be fully effective and prevent rerouting of trade flows, bans should be global.
 

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