The ghost of invasives past: rat eradication and the community composition and energy flow of island bird communities

摘要: In the Falkland Islands, islands with invasive rats have fewer passerine species compared to without rats. On on which been eradicated, richness is indistinguishable from that found historically free of rats, but community composition differs between these two island types. particular, most dominant rat-free islands, Cinclodes antarcticus, less abundant and prevalent eradicated islands. We energy flow were absent. Passerine communities used nine times more than present. Despite equivalent richness, was approximately half had Because determined by not within this appear be functionally complementary redundant. At least one species, C. antarcticus, plays an irreplaceable role. Our results also document dramatic lingering effects following their eradication, importance complementarity for resilience properties.