Bionomics and distribution of the stag beetle, Lucanus cervus (L.) across Europe

Authors


  • List of authors who contributed to this study: Michele Abdehalden, Nida Al Fulaij, Therese Asp, Alberto Ballerio, Luca Bartolozzi, Hervé Brustel, Roger Cammaerts, Giuseppe Maria Carpaneto, Bjorn Cederberg, Karel Chobot, Fabio Cianferoni, Alain Drumont, Götz Ellwanger, Sónia Ferreira, José Manuel Grosso-Silva, Borislav Gueorguiev, William Harvey, Paul Hendriks, Petru Istrate, Nicklas Jansson, Lucija Šerić Jelaska, Eduard Jendek, Miloš Jović, Thierry Kervyn, Harald W.Krenn, Klaus Kretschmer, Anastasios Legakis, Suvad Lelo, Marco Moretti, Otto Merkl, Rodrigo Megia Palma, Zaharia Neculiseanu, Wolfgang Rabitsch, Santiago Merino Rodríguez, John T. Smit, Matthew Smith, Eva Sprecher-Uebersax, Dmitry Telnov, Arno Thomaes, Philip F. Thomsen, Piotr Tykarski, Al Vrezec, Sebastian Werner and Peter Zach

Alan C. Gange, School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK. E-mail: a.gange@rhul.ac.uk

Abstract

Abstract.  1. The European stag beetle, Lucanus cervus, is thought to be widely distributed across its range, but a detailed description of its occurrence is lacking.

2. Researchers in 41 countries were contacted and information sought on various life history characteristics of the insect. Data on adult body size were collected from seven countries.

3. Habitat associations differ between the United Kingdom and mainland Europe. Larvae are most commonly associated with oak, but the duration of the larval stage and the number of instars varies by up to 100% across Europe.

4. Adult size also varies; beetles from Spain, Germany, and the Netherlands are larger than those from Belgium or the UK. In the former countries, populations are composed mainly of large individuals, while in the UK, the majority of individuals are relatively small. Allometric relations between mandible size and total body length differ in Germany compared with the rest of Europe.

5. Distribution maps of the insect, split into records pre- and post-1970, from 24 countries are presented. While these inevitably suffer from recorder bias, they indicate that in only two countries, Croatia and Slovakia, does the insect seem to be increasing in range.

6. Our data suggest that the insect may be in decline across Europe, most likely due to habitat loss, and that conservation plans need to be produced that focus on the biology of the insect in the local area.

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