Search results for "Lag"
showing 10 items of 3124 documents
Alternative energy scenarios for small islands: A case study from Salina Island (Aeolian Islands, Southern Italy)
2012
Abstract The Aeolian archipelago is made up of seven main islands situated in the Tyrrhenian sea (Sicily Italy). They represent a suitable scenario for the development of a sustainable energy production system, that could easily be reproduced on other Mediterranean Islands. The fact that these islands depend on the mainland for energy supplies and the high cost of bringing fuel in tanker boats are factors that should strongly encourage the use of renewable energy source technologies. Taking into account the European Commission guidelines, this paper sets out to evaluate potential energy production using photovoltaic and small scale wind power, in order to verify their contribution to overal…
Distribution and spatial structure of pelagic fish schools in relation to the nature of the seabed in the Sicily Channel (Central Mediterranean).
2009
Hydroacoustic data collected during two echosurveys carried out in the Sicily Channel in 1998 and 2002 were analysed to investigate the distribution and spatial structure of small pelagic fish species in relation to the sedimentological nature of the sea bottom. The study was carried out on two contiguous areas (labelled ZONE 1 and ZONE 2) of the continental shelf off the southern coast of Sicily, characterised by different dominant texture, ‘sand’ for ZONE 1 and ‘clayey-silt’ for ZONE 2. Simultaneous information on small pelagic fish schools and the seabed was obtained using a quantitative echo-sounder (SIMRAD EK500) that measures echoes due to the scattering from both fish schools and the…
Anthicidae (Insecta: Coleoptera) of the Lesser Sunda Islands – A Preliminary Review
2021
An account of the Anthicidae (ant-like flower beetles) from the Lesser Sunda Archipelago (politically shared between Indonesia & Timor Leste) is presented for the first time. Thirteen species new to science are described and illustrated: Anthicomorphus badengsp. nov. (Bali), Anthicus (s. str.) miroshnikovisp. nov. (East Java, Lombok, Timor Leste), A. (s. str.) renschisp. nov. (Flores), Anthelephila anthophilasp. nov. (Timor Leste), A. barsevskisisp. nov. (Timor Island), A. nusatenggarasp. nov. (Lombok), A. tamborasp. nov. (Sumbawa), Macratria marusp. nov. (Pura Island, Alor Archipelago), Sapintus degiovanniisp. nov. (Timor Leste), Pseudotomoderus reidisp. nov. (Timor Leste), Tomoderus balia…
<i>Acacia cyclops</i> A. Cunn. ex G. Don (Leguminosae) in Italy: first cases of naturalization
2012
The first two cases of naturalization of <i>Acacia cyclops</i> are reported for Italy. Young trees were observed growing in the wild some 15 years ago on Linosa (Pelagie Islands, Strait of Sicily). A decade later, this alien plant should no longer be considered as a casual, since a very intensive process of self-sown regeneration has been observed in some plantations on Lampedusa, the major island of the same Archipelago. The available literature suggests the need for careful monitoring of the ongoing invasion process, as <i>A. cyclops</i> has already shown a very invasive behaviour elsewhere within Mediterranean-type biomes due to its ability to withstand high envir…
Taxonomic uncertainty and a continental conundrum:Polypodium macaronesicumreassessed
2014
Data from the chloroplast trnL-F region are used to test the delimitation of putative diploid species in the Polypodium cambricum aggregate. In particular, we investigate the distinctiveness of the Macaronesian Polypodium macaronesicum, P. azoricum and the continental P. cambricum, investigate molecular diversity patterns within Macaronesia and establish the identity of putative P. macaronesicum material collected from an area in southern Spain, where it co-occurs with other Macaronesian elements. The analysis supports the distinction of Macaronesian and continental plants, with accessions from Macaronesia resolved as monophyletic. Greater haplotype diversity was found in Macaronesia than o…
Typhlodromips jurmoensis ; (Acari: Mesostigmata: Amblyseiinae), a new species from the archipelago of SW Finland
2014
A new species belonging to the genus Typhloromips De Leon, 1965 is described. It was collected from Calluna moorland soil on Jurmo, a remote island in the SW archipelago of Finland. Typhlodromips herbarius (Wainstein, 1960) is considered a senior synonym of T.tenuis (Westerboer, 1963), syn.n. A key is given to related species with a similar spermathecal structure. peerReviewed
<strong>A new species of <em>Pactola</em> Pascoe, 1876 (Coleoptera: Curculionidae: Eugnomini) from New Caledonia</strong>
2015
Pactola corporosa sp. n. is described from New Caledonia. Illustrations of body parts, terminalia of both sexes and distributional data of the new species are provided. The genus Pactola Pascoe, 1876 now contains thirteen species distributed in New Zealand, New Caledonia and Taevuni Island (Fiji Archipelago).
A multi-gene approach reveals a complex evolutionary history in the Cyanistes species group
2011
Quaternary climatic oscillations have been considered decisive in shaping much of the phylogeographic structure around the Mediterranean Basin. Within this paradigm, peripheral islands are usually considered as the endpoints of the colonization processes. Here, we use nuclear and mitochondrial markers to investigate the phylogeography of the blue tit complex (blue tit Cyanistes caeruleus, Canary blue tit C. teneriffae and azure tit C. cyanus), and assess the role of the Canary Islands for the geographic structuring of genetic variation. The Canary blue tit exhibits strong genetic differentiation within the Canary Islands and, in combination with other related continental species, provides a…
A Sustainable Energy Mix for the Aeolian Islands
2018
The paper examines the current status of the electrical energy production in the Aeolian Islands, an Italian archipelago, composed by small island North of Sicily. Instead the availability of renewable energy sources, like wind, solar, geothermal and sea wave, these islands produce electrical energy using almost entirely fossil fuels. Starting from this initial condition, the paper proposes an energetic mix based on the available resources and focusing the attention on sea wave. An innovative device is presented in order to exploit this energy source.
Vertical profile of atmospheric dimethyl sulfide in the Arctic Spring and Summer
2017
Abstract. Vertical distributions of atmospheric dimethyl sulfide (DMS(g)) were sampled aboard the research aircraft Polar 6 near Lancaster Sound, Nunavut, Canada in July 2014 and on pan-Arctic flights in April 2015 that started from Longyearbyen, Spitzbergen, and passed through Alert and Eureka, Nunavut and Inuvik, Northwest Territories. Larger mean DMS(g) mixing ratios were present during April 2015 (campaign-mean of 116±8 pptv) compared to July 2014 (campaign-mean of 20±6 pptv). Observations in July 2014 indicated a decrease in DMS(g) mixing ratios with altitude up to about 3 km, and the largest mixing ratios were found near the surface above ice-edge and open water, coincident with incre…