Articles | Volume 23, issue 2
Standard article
14 Jul 2023
Standard article |  | 14 Jul 2023

Invasive shallow-water foraminifera impacts local biodiversity mostly at densities above 20 %: the case of Corfu Island

Anna E. Weinmann, Olga Koukousioura, Maria V. Triantaphyllou, and Martin R. Langer

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Cited articles

Abu Tair, N. K. and Langer, M. R.: Foraminiferal invasions: the effect of Lessepsian migration on the diversity and composition of benthic foraminiferal assemblage around Cyprus (Mediterranean Sea): Forams 2010 – International Symposium on Foraminifera, Bonn, Germany, 5–10 September 2010, Abstracts, Rheinische Friedrich-Wilhelms-Universität Bonn, p. 42, 2010. 
Aiello, G., Barra, D., Coppa, M. G., Valente, A., and Zeni, F.: Recent infralittoral Foraminiferida and Ostracoda from Porto Cesareo Lagoon (Ionian Sea, Mediterranean), B. Soc. Paleontol. Ital., 45, 1–14,​​​​​​​ (last access: 31 August 2021), 2006. 
Albano, P. G., Steger, J., Bošnjak, M., Dunne, B., Guifarro, Z., Turapova, E., Hua, Q., Kaufman, D. S., Rilov, G., and Zuschin, M.: Native biodiversity collapse in the eastern Mediterranean, P. Roy. Soc. B. Biol. Sci., 288, 20202469,, 2021. 
Barras, C., Jorissen, F. J., Labrune, C., Andral, B., and Boissery, P.: Live benthic foraminiferal faunas from the French Mediterranean Coast: Towards a new biotic index of environmental quality, Ecol. Indic., 36, 719–743,, 2014. 
Berger, W. H. and Parker, F. L.: Diversity of planktonic foraminifera in deep-sea sediments, Science, 168, 1345–1347,, 1970. 
Short summary
This study analyzes the diversity of benthic foraminifera at the range expansion front of the invasive species Amphistegina lobifera in Corfu (central Mediterranean). The species has been suggested to impact local diversity and community structures, and our results confirm these effects as soon as A. lobifera exceeds a specific abundance threshold (> 20 %). Nevertheless, we found that the study area reveals an overall high biodiversity that can be attributed to its unique location.