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Harmonia axyridis implicated in native European ladybird declines

Roy, Helen E.; Adriaens, Tim; Isaac, Nick J.B.; Kenis, Marc; Onkelinx, Thierry; San Martin, Gilles; Brown, Peter M.J.; Hautier, Louis; Poland, Remy; Roy, David B.; Comont, Richard; Eschen, René; Frost, Robert; Zindel, Renate; Van Vlaenderen, Johan; Nedvěd, Oldřich; Ravn, Hans Peter; Grégoire, Jean-Claude; de Biseau, Jean-Christophe; Maes, Dirk. 2013 Harmonia axyridis implicated in native European ladybird declines. In: Sloggett, John J.; Brown, Peter M.J.; Roy, Helen E., (eds.) IOBC-WPRS Working Group “Benefits and Risks of Exotic Biological Control Agents”: proceedings of the second meeting at Hluboká, Czech Republic, 30th October - 3rd November 2011. Darmstadt, International Organization for Biological and Integrated Control of Noxious Animals and Plants, West Palearctic Regional Section (IOBC-WPRS), 23-25. (IOBC-WPRS Bulletin, v. 94).

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Abstract/Summary

Rates of global extinction are accelerating and show no sign of slowing (Millenium Ecosystem Assessment, 2005). Invasive alien species (IAS) are recognised as major drivers of biodiversity loss (Winter et al., 2009). IAS afford a unique opportunity to accurately assess threats to biodiversity because the time at which an IAS arrives within an ecosystem is often known, unlike other drivers of change. However, few causal relationships between IAS and species declines have been documented. We used data collated through extensive citizen-driven field surveys in Belgium and Britain spanning decades, as well as intensive monitoring by scientists in Belgium, Britain and Switzerland. The fine-scale data collection, replicated in time (over decades and including detailed observations before and after the arrival of an IAS) and with extensive coverage in three European countries, combined with powerful modern mixed-modelling (statistical) techniques, provided a uniquely rigorous test of the impacts of an IAS on biodiversity. We report rapid, dramatic and ongoing declines in the distribution of formerly common and widespread native ladybirds in Belgium and Britain following the arrival of Harmonia axyridis (Coleoptera: Coccinellidae), a globally rapidly expanding IAS (Roy et al., 2012). For example, the two-spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae), declined in both Belgium and Britain over five years after the arrival of H. axyridis.

Item Type: Publication - Book Section
Programmes: CEH Topics & Objectives 2009 - 2012 > Biodiversity > BD Topic 1 - Observations, Patterns, and Predictions for Biodiversity > BD - 1.3 - Long-term/large-scale monitoring and experiments ...
CEH Topics & Objectives 2009 - 2012 > Biodiversity > BD Topic 1 - Observations, Patterns, and Predictions for Biodiversity > BD - 1.4 - Quantify and model interactions to determine impacts ...
CEH Topics & Objectives 2009 - 2012 > Biodiversity > BD Topic 2 - Ecological Processes in the Environment > BD - 2.2 - Quantify the impact of invasive species, pathogens ...
CEH Sections: Pywell
ISBN: 9789290672739
NORA Subject Terms: Ecology and Environment
Related URLs:
Date made live: 08 Oct 2013 14:46 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/503435

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