Centro Nazionale per lo Studio
Centro Nazionale per lo Studio
Audisio P.,University of Rome La Sapienza |
Zarazaga M.A.,CSIC - National Museum of Natural Sciences |
Slipinski A.,CSIRO |
Nilsson A.,Umeå University |
And 41 more authors.
Biodiversity Data Journal | Year: 2015
Fauna Europaea provides a public web-service with an index of scientific names (including synonyms) of all living European land and freshwater animals, their geographical distribution at country level (up to the Urals, excluding the Caucasus region), and some additional information. The Fauna Europaea project covers about 230,000 taxonomic names, including 130,000 accepted species and 14,000 accepted subspecies, which is much more than the originally projected number of 100,000 species. This represents a huge effort by more than 400 contributing specialists throughout Europe and is a unique (standard) reference suitable for many users in science, government, industry, nature conservation and education. Coleoptera represent a huge assemblage of holometabolous insects, including as a whole more than 200 recognized families and some 400,000 described species worldwide. Basic information is summarized on their biology, ecology, economic relevance, and estimated number of undescribed species worldwide. Little less than 30,000 species are listed from Europe. The Coleoptera 2 section of the Fauna Europaea database (Archostemata, Myxophaga, Adephaga and Polyphaga excl. the series Elateriformia, Scarabaeiformia, Staphyliniformia and the superfamily Curculionoidea) encompasses 80 families (according to the previously accepted family-level systematic framework) and approximately 13,000 species. Tabulations included a complete list of the families dealt with, the number of species in each, the names of all involved specialists, and, when possible, an estimate of the gaps in terms of total number of species at an European level. A list of some recent useful references is appended. Most families included in the Coleoptera 2 Section have been updated in the most recent release of the Fauna Europaea index, or are ready to be updated as soon as the FaEu data management environment completes its migration from Zoological Museum Amsterdam to Berlin Museum fü r Naturkunde. © Audisio P et al.
Della Rocca F.,University of Pavia |
Stefanelli S.,University of Pavia |
Pasquaretta C.,University of Strasbourg |
Pasquaretta C.,French National Center for Scientific Research |
And 3 more authors.
Journal of Insect Conservation | Year: 2014
Saproxylic beetles may act as bio-indicators of high-quality mature woodlands, and their conservation is strongly linked to the quality and quantity of deadwood in a biotope. We tested the effect of deadwood accumulation and habitat variables on saproxylic species richness by investigating six sampling sites under different deadwood management practices that belong to both alluvial and riparian mixed forests of the Po plain, Italy. We sampled 43 obligate saproxylic species. The main factor predicting saproxylic species richness was the amount of deadwood measured by both log diameter and volume. We found a threshold of 0.22 m diameter (confidence interval CI 0.18-0.37 m) and 32.04 m3/ha volume (CI 16.09-64.09 m3/ha) below which saproxylic beetle richness would be significantly reduced and a threshold of 35 m3/ha dead wood volume (CI 33-40 m3/ha) over which species richness increases by <5 %. The other deadwood and environmental components influenced saproxylic beetle richness to a lesser extent; some of them, however, should still be considered for proper management. Forest structure variables describing forest density such as large trees and basal areas have a negative effect on species richness. According to the results of our study, stumps and advanced decaying class are positively correlated, while small logs are negatively correlated to species richness. Thus, in extensively managed forests, the regular cutting of trees should be implemented to create artificial stumps, in order to assure a continuity of deadwood and, in the meantime, increase the number and width of openings in the forest. Moreover, prolonging rotation times can assure the presence of deadwood at intermediate/later stages of decay. © 2014 Springer International Publishing Switzerland.
Nardi G.,Centro Nazionale per lo Studio
Zootaxa | Year: 2010
Hybosorus hopei A. Costa, 1844 from Naples environs (Italy), described in the Lamellicornia, was later moved by Costa himself to the genus Trachyscelis Latreille, 1809 (Tenebrionidae) but was overlooked by almost all subsequent authors. Its history is summarized and the following new synonymy is established: Trachyscelis aphodioides Latreille, 1809 = Hybosorus hopei A. Costa, 1844 syn. nov. Up-to-date global and Italian distributions of T. aphodioides are provided. Copyright © 2010 Magnolia Press.
Hardersen S.,Centro Nazionale per lo Studio |
Macagno A.L.M.,Centro Nazionale per lo Studio |
Macagno A.L.M.,University of Rome La Sapienza |
Sacchi R.,University of Pavia |
Toni I.,Centro Nazionale per lo Studio
European Journal of Entomology | Year: 2011
In insects, allometries of exaggerated traits such as horns or mandibles are often considered species specific and constant during a season. However, given that constraints imposed by the advancing season affect the developmental processes of organisms, these allometries may not be fixed, and the switch point between morphs may vary between populations and within populations during a season. The hypothesis of such a seasonal variation in exaggerated traits was tested using the dimorphic males of the beetle Lucanus cervus. The remains of specimens killed by predators were collected along forest tracks from mid May to late August 2008 in a protected lowland forest in northern Italy. The largest beetles were collected in mid May and average size thereafter decreased. Males collected early in the season mostly had large mandibles (i.e. they belonged to the major morph). In contrast, late in the season the probability of finding males with large mandibles was very low. The threshold body size determining morph expression also shifted during the season. Early in the season, the threshold pronotum width for a 50% chance of developing into the major morph was 1.74 cm, whereas later in the season it was 1.90 cm. This shift in the threshold body size was interpreted as the effect of phenotypic plasticity in a population exposed to constraints imposed by the advancing season.