LIBELLULE DI LIGURIA

Homepage | Tool

LIBELLULE DI LIGURIA

Gemiddeld 0/5 - 0 vote
2013 Dario OTTONELLO, Fabrizio ONETO

Samenvatting
ABSTRACT Dragonflies from Liguria (Odonata). This paper updates the knowledge about dragonflies observed within the administrative boundaries of Liguria (North-west of Italy) to nearly seventy years since the last paper at regional scale (Capra 1945). The study was carried out through the collection of new data and through a revision of bibliography and museological collections. A geographic database was compiled with approximately 3,000 records, representing a relevant sampling effort with about one record every two square kilometers. Of these, 500 are published and 2,500 are unpublished data, the latter mainly collected in the last seven years (88%). A total of 57 species, 23 Zygoptera and 34 Anisoptera, are recorded for the study area, representing the 61% of the Italian odonatofauna. Four species are recorded as new for Liguria: Coenagrion pulchellum, Ophiogomphus cecilia, Libellula fulva and Trithemis annulata. Conversely, five historically-recorded species were not found during the last years: Coenagrion mercuriale, Erythromma najas, Sympetrum vulgatum, Somatochlora flavomaculata e Somatochlora meridionalis. The Ligurian odonatofauna is mainly composed by palearctic species (84%), followed by holoartic (7%), afro-european (5%) and afrotropical (4%) species. Specimens were observed in flight from the sea level up to 1700 m a.s.l., with a higher number of species present at elevation of up to 1000 m, and only six species reaching the highest altitude. The flight season is mainly concentrated in the summer with the following number of species observed for each month: January (0), February (1), March (0), April (7), May (25), June (43), July (47), August (45), September (27), October (10), November (4), December (0).

Een bijdrage van Jean-François Olivier
Italiaans
Ligurië (regio Italië)
Odonata (Libellen)
wetenschappelijk artikel, PDF gratis op internet

Inhoud en foto's.

131 pagina's
57 soorten
Geografische verspreidingskaarten, geografische verspreiding in de text
Uitgave: estratto dagli annali del Museo CiviCo di storia naturale “G. Doria” Vol. 105 - 30 DiCeMbre 2013
Referentie Nadaba : 28360

aangesloten leden

In de lijst van (0):
Geen gebruiker
In de bibliotheek van (0) :
Geen gebruiker