16 research outputs found
Erratum to: Seismic waves in 3-D: from mantle asymmetries to reliable seismic hazard assessment
Acknowledgments This paper is strongly relying upon the work of many colleagues and collaborators to whom we are greatly thankful, in particular: Carlo Doglioni, Gillian Foulger, Vahid Gholami, Hossein Hamzehloo, Volodya Kossobokov, Cristina La Mura, Anatoly Levshin, Andrea Magrin, Antonella Peresan, Federica Riguzzi, Franco Vaccari, Peter Varga, Tatiana Yanovskaya. Financial support from PRIN 2010-2011 and RITMARE projects, funded by Italian Ministry of University and Research, is gratefully acknowledged. In addition, Fig. 3 should be updated by new one as below
Odour and colour similarity in two species of gregarious carabid beetles (Coleoptera) from the Crati Valley, southern Italy: A case of MĂĽllerian mimicry?
Bombardier beetles of the genus Brachinus (Carabidae) are disagreeable prey because they discharge irritating quinones. Brachinus beetles live in aggregations and display warning colours. Like Brachinus beetles, Anchomenus dorsalis beetles produce methylsalicylate, and present a similar colour pattern. Anchomenus dorsalis beetles are usually found within Brachinus aggregations. Our aim was to investigate the similarity of cuticular chemical profiles of these two species to test the hypothesis of interspecific chemical mimicry. We investigated the cuticular composition of A. dorsalis, B. sclopeta, and Poecilus cupreus. Poecilus cupreus, a non-aposematic carabid commonly found in Brachinus spp and Anchonemus dorsalis aggregations, was used as a control. The cuticular profiles of the three species include 48 different hydrocarbons. The cuticular hydrocarbon profiles of the three species of carabids were different, but individuals of Brachinus were chemically more similar to those of Anchomenus than to those of Poecilus; in turn, individuals of Poecilus were more similar to Anchomenus than to Brachinus. We suggest that A. dorsalis is possibly mimicking the cuticular profile of B. sclopeta as an effective antipredator strategy. Brachinus sclopeta may benefit from a reduction of individual predation risk due to an increased number of aggregated preys (dilution effect), while A. dorsalis may increase the benefit both from the dilution effect and from the greater chemical defense of B. sclopeta
Environmental features influencing Carabid beetle (Coleoptera) assemblages along a recently deglaciated area in the Alpine region
Agonistic behaviour of Scarites buparius (Forster, 1771) (Coleoptera: Carabidae) in relation to body size. Entomologica Fennica 17
Intra-male aggressive behaviour of Scarites buparius was analysed; agonistic interaction between males consisted of a repeated series of fighting events. We defined this behaviour as "agonistic" because a dominance/submission status was established. We measured the males and found that the attack behaviour persistence is correlated with the body length