More than 1.2 million distribution records were used to create species models for 402 Palaearctic of dragonflies and damselflies. On the basis these diversity maps total, lentic lotic whole (excluding China Himalayan region) are presented. These show a clear pattern decreasing longitudinally, with numbers dropping in eastern half Europe remaining low throughout large part Russia, then increasin...

The group “Ważki (Odonata) w Polsce” is an excellent example of citizen science, understood as a cooperation between society and professionals in scientific activity. goal the present paper to show data concerning very late appearances dragonflies damselflies years 2013 – 2020, enrich knowledge about phenology various species comparison published data, which no longer valid, taking into conside...

Hoyle (i960) has recently shown that carbon dioxide has a direct action on the closer muscle of spiracle 2 of the desert locust, Schistocerca gregaria Forskal, reducing the electrical responses and the tension developed. Nevertheless, except in flight, the valve movements are nearly always synchronized with ventilation, and it seems unlikely that this action of carbon dioxide plays much part in...

Members of the family Circoviridae, specifically the genus Circovirus, were thought to infect only vertebrates; however, members of a sister group under the same family, the proposed genus Cyclovirus, have been detected recently in insects. In an effort to explore the diversity of cycloviruses and better understand the evolution of these novel ssDNA viruses, here we present five cycloviruses is...

We present the concept of network traffic streams, and the ways they aggregate into flows through Internet links. We describe a method of measuring the size and lifetime of Internet streams, and use this method to characterise traffic distributions at two different sites. We find that although most streams (about 45% of them) are dragonflies, lasting less than 2 seconds, a significant number of...

Seventeen years after the publication of last checklist damselflies and dragonflies found in Italy, an updated list has been compiled. This reports 95 species belonging to 10 families 38 genera includes 2 national endemic 1 sub-endemic species. Compared previous checklist, three were removed, two subspecies granted status, added as new taxa for Italy. The summarizes current state knowledge on g...

Twenty-seven species of Odonata were collected in the present survey in the freshwaters of South-Eastern Iran, Kerman province, in contrast to 11 species that were recorded previously from this region. In this study, 528 specimens were collected from more than 30 sites in Kerman province during 2006-2008. It seems that in this region due to its special biogeographic conditions, species diversit...

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Fluorescence is emitted by diverse living organisms. The analysis and interpretation of these signals may give information about their physiological state, ways of communication among species and the presence of specific chemicals. In this manuscript we review the state of the art in the research on the fluorescence emitted by plant leaves, fruits, flowers, avians, butterflies, beetles, dragonf...