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Loss of functional diversity through anthropogenic extinctions of island birds is not offset by biotic invasions

Title data

Sayol, Ferran ; Cooke, Robert S. C. ; Pigot, Alex L. ; Blackburn, Tim M. ; Tobias, Joseph A. ; Steinbauer, Manuel ; Antonelli, Alexandre ; Faurby, Søren:
Loss of functional diversity through anthropogenic extinctions of island birds is not offset by biotic invasions.
In: Science Advances. Vol. 7 (2021) Issue 46 .
ISSN 2375-2548
DOI: https://doi.org/10.1126/sciadv.abj5790

Abstract in another language

Human impacts reshape ecological communities through the extinction and introduction of species. The combined impact of these factors depends on whether non-native species fill the functional roles of extinct species, thus buffering the loss of functional diversity. This question has been difficult to address, because comprehensive information about past extinctions and their traits is generally lacking. We combine detailed information about extinct, extant, and established alien birds to quantify historical changes in functional diversity across nine oceanic archipelagos. We found that alien species often equal or exceed the number of anthropogenic extinctions yet apparently perform a narrower set of functional roles as current island assemblages have undergone a substantial and ubiquitous net loss in functional diversity and increased functional similarity among assemblages. Our results reveal that the introduction of alien species has not prevented anthropogenic extinctions from reducing and homogenizing the functional diversity of native bird assemblages on oceanic archipelagos.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Cultural Studies > Department of Sport Science > Professor Sport Ecology
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 560 Fossils, prehistoric life
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Date Deposited: 15 Nov 2021 11:31
Last Modified: 15 Nov 2021 11:31
URI: https://eref.uni-bayreuth.de/id/eprint/67815