European variations in the temporal trend of bird and butterfly community temperature index

Figure Created 11 Oct 2012 Published 20 Nov 2012 Last modified 17 Nov 2017
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The map shows the temporal trend of bird and butterfly CTI for each country. A temporal increase in CTI directly reflects that the species assemblage of the site is increasingly composed of individuals belonging to species dependent on higher temperature. The height of a given arrow is proportional to the temporal trend and its direction corresponds to the sign of the slope (from south to north for positive slopes). The arrow is opaque if the trend is significant.

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information.png Temporal coverage:
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information.png Geographic coverage:
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information.png Methodology:

Devictor, V. van Swaay, C. Brereton, T. Brotons, L. Chamberlain, D. Heliölä, J. Herrando, S. Julliard, R. Kuussaari, M. Lindström, Å. Reif, J. Roy, D.B. Schweiger, O. Settele, J. Stefanescu, C. Van Strien, A. Van Turnhout, C. Vermouzek, Z. WallisDeVries, M. Wynhoff, I. & Jiguet, F. (2012) Differences in the climatic debts of birds and butterflies at a continental scale. Nature Climate Change. 2, 121–124.

information.png Units:

For the spatial shift of birds and butterflies (arrows): 1 cm~1.75 km per year

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EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
information.png Owners:
European Environment Agency (EEA)
information.png Processors:
Centre national de la recherche scientifique (CNRS)
information.png Figure type:
Map

Additional information

Arrows are proportional to the annual change in community composition as a response to climate change.

Related content

Based on data

Differences in the climatic debts of birds and butterflies at a continental scale Climate changes have profound effects on the distribution of numerous  plant and animal species. However, whether and how different  taxonomic groups are able to track climate changes at large spatial scales is still unclear. Here, we measure and compare the climatic debt accumulated by bird and butterfly communities at a European scale over two decades (1990–2008). We quantified the yearly change in community composition in response to climate change for 9,490 bird and 2,130 butterfly communities distributed across Europe 4 . We show that changes in community composition are rapid but different between birds and butterflies and equivalent to a 37 and 114   km northward shift in bird and butterfly communities, respectively. We further found that, during the same period, the northward shift in temperature in Europe was even faster, so that the climatic debts of birds and butterflies correspond to a 212 and 135   km lag behind climate. Our results indicate both that birds and butterflies do not keep up with temperature increase and the accumulation of different climatic debts for these groups at national and continental scales.

Used in indicators

Used in publications

Climate change, impacts and vulnerability in Europe 2016 This report is an indicator-based assessment of past and projected climate change and its impacts on ecosystems and society. It also looks at society’s vulnerability to these impacts and at the development of adaptation policies and the underlying knowledge base. This is the fourth ‘Climate change, impacts and vulnerability in Europe’ report, which is published every four years. This edition aims to support the implementation and review process of the 2013 EU Adaptation Strategy, which is foreseen for 2018, and the development of national and transnational adaptation strategies and plans.
Climate change, impacts and vulnerability in Europe 2012 This European Environment Agency (EEA) report presents information on past and projected climate change and related impacts in Europe, based on a range of indicators. The report also assesses the vulnerability of society, human health and ecosystems in Europe and identifies those regions in Europe most at risk from climate change. Furthermore, the report discusses the principle sources of uncertainty for the indicators and notes how monitoring and scenario development can improve our understanding of climate change, its impacts and related vulnerabilities.

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