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Can classic biological invasion hypotheses be applied to reported cases of non-native terrestrial species in the Maritime Antarctic?

Published online by Cambridge University Press:  04 April 2022

Luis R. Pertierra*
Affiliation:
BIOMA Lab, Universidad Rey Juan Carlos, C/Tulipan, S/N, 28933 Móstoles, Spain
Peter Convey
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge, CB3 0ET, UK Department of Zoology, University of Johannesburg, Auckland Park 2006, South Africa
Pablo Ariel Martinez
Affiliation:
Federal University of Sergipe, Av. Marechal Rondon, s/n - Jardim Rosa Elze, São Cristóvão - SE, 49100-000 São Cristóvão, Brazil
Pablo Tejedo
Affiliation:
Universidad Autónoma de Madrid, C/Darwin, 2, 28049 Madrid, Spain
Javier Benayas
Affiliation:
Universidad Autónoma de Madrid, C/Darwin, 2, 28049 Madrid, Spain
Miguel Ángel Olalla-Tárraga
Affiliation:
BIOMA Lab, Universidad Rey Juan Carlos, C/Tulipan, S/N, 28933 Móstoles, Spain

Abstract

Understanding the success factors underlying each step in the process of biological invasion provides a robust foundation upon which to develop appropriate biosecurity measures. Insights into the processes occurring can be gained through clarifying the circumstances applying to non-native species that have arrived, established and, in some cases, successfully spread in terrestrial Antarctica. To date, examples include a small number of vascular plants and a greater diversity of invertebrates (including Diptera, Collembola, Acari and Oligochaeta), which share features of pre-adaptation to the environmental stresses experienced in Antarctica. In this synthesis, we examine multiple classic invasion science hypotheses that are widely considered to have relevance in invasion ecology and assess their utility in understanding the different invasion histories so far documented in the continent. All of these existing hypotheses appear relevant to some degree in explaining invasion processes in Antarctica. They are also relevant in understanding failed invasions and identifying barriers to invasion. However, the limited number of cases currently available constrains the possibility of establishing patterns and processes. To conclude, we discuss several new and emerging confirmatory methods as relevant tools to test and compare these hypotheses given the availability of appropriate sample sizes in the future.

Type
Biological Sciences
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of Antarctic Science Ltd

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