Emergency oral rabies vaccination of foxes in Italy in 2009–2010: identification of residual rabies foci at higher altitudes in the Alps

2011 ◽  
Vol 140 (4) ◽  
pp. 591-598 ◽  
Author(s):  
P. MULATTI ◽  
T. MÜLLER ◽  
L. BONFANTI ◽  
S. MARANGON

SUMMARYFollowing a resurgence of fox rabies in northeastern Italy in 2008–2009, two emergency oral rabies vaccination (ORV) campaigns were performed in the Alpine mountain ranges in 2009 and 2010 using aerial distribution to prevent the disease from spreading further inland. Vaccine baits were distributed only below the freezing point altitude, 1000 m above sea level (a.s.l.) in December 2009–January 2010 and 1500 m a.s.l. in April–May 2010, to avoid repeated freeze–thaw cycles. Spatial analysis unexpectedly identified fox rabies hotspots above the threshold altitudes, probably representing local residual rabies foci which may have contributed to maintaining the infectious cycle in areas not vaccinated at higher altitudes. Based on the results obtained, in May 2010, the second ORV campaign was extended to include threshold altitudes of up to 2300 m a.s.l. to eliminate residual foci. The observations made may help in the formulation of ORV strategies in countries sharing similar topographical features.

2021 ◽  
Vol 3 (1) ◽  
pp. 23-36
Author(s):  
Ian Wall

The purpose of this paper is to explore some of the underlying mountaineering risks, safety and security issues found in the traditional activity known as mountaineering. The paper also highlights some of the commonly known and distinguished terms of mountaineering. Mountaineering is the art of moving through the mountains using a set of technical ‘mountaineering’ skills. In Europe, it is often called alpinism when done in the Alps, apart from known as trekking, hiking or even fell walking. It includes traditional outdoor rock climbing in a mountain setting, multi-day rock climbing, skiing, snow-shoeing, a multi-day journey in the mountains, whether camping or in lodges. Mountaineering is not necessarily restricted to the greater mountain ranges as many countries with low altitude mountains have many citizens that go ‘mountaineering’ inside their borders. There are no predetermined heights at which a hill becomes a mountain; many geographers state that a mountain is greater than 300m (1,000 feet) above sea level, but the Oxford English Dictionary puts the hill limit at 600m asl. Another consideration is the latitude of the ‘hills’. For example, the hills of Scotland, although the highest being Ben Nevis at 1345m asl, are considerably further north than the Pyrenees with its highest mountain, Pic Aneto, at 3404m asl. The arctic winds, the northern European winds and the south-westerly gales are as harsh as any found in the higher ranges.


2020 ◽  
Vol 5 (12) ◽  
Author(s):  
Tingtao Zhou ◽  
Mohammad Mirzadeh ◽  
Roland J.-M. Pellenq ◽  
Martin Z. Bazant

The unaided eye can see roundish dark spots on the Moon set in a brighter back­ground. Telescopic observation of these dark spots, called maria (plural of mare , sea) reveals that they are nearly level terrain sparsely covered with craters. The brighter surroundings or terrae are from shadow measurements found to be higher, some 1 to 3 km above the maria. The terra elevations scatter widely, reaching several kilometres in the mountain ranges. The most prominent of these ranges occur as peripheral mountain chains around the near-circular maria. Examples are the Apennines, the Alps, the Carpathians, and the Altai Scarp. These arcuate chains surround the maria as the crater walls surround crater floors, an analogy that can be carried further and implies, apart from scale, a similar origin. This origin is almost certainly impact by massive objects. In the case of the impact maria and pre-mare craters, the source of the objects appear to have been a satellite ring around the Earth through which the Moon swept very early in its history, in its outward journey from its position of origin very near the Earth (Kuiper 1954, 1965). The post-mare craters are presumably mostly asteroidal (and partly comet­ary) in origin and related to the craters observed by Mariner IV on Mars. The estimated time dependencies of these two crater-forming processes are shown schematically in figure 1. A fuller discussion of this problem has been given else­where (Kuiper, Strom & Poole 1966; Kuiper 1966). The higher asteroidal impact rate on Mars, by a factor of about 15, as derived from the Mariner IV records, is interpreted as being due to the greater proximity to the asteroid ring. The num­erical factor approximately agrees with theory. Mars apparently lacks the equiva­lent of the initial excessively intense bombardment of the Moon (attributed to impacts by circumterrestrial bodies); unless, of course, the entire Martian surface has been molten and is directly comparable to the lunar maria. This does not seem probable but can at present not be ruled out; if true, the earliest surface history would have been erased. The nature of the mare surface has, during the past decade, been an object of much, perhaps too much, speculation. With the several recent successful lunar reconnaissance missions completed, the older interpretation of the maria as lava beds, based on telescopic observation, has been abundantly confirmed. Four options discussed in recent literature are analysed in Kuiper (1965, §§A, B, pp. 12–39). Among the most potent arguments for the lava cover of the maria are the prominent lava flows observed on Mare Imbrium and Mare Serenitatis, each having a characteristic colour. A map of some Mare Imbrium flows is found in figure 2.


2001 ◽  
Vol 32 ◽  
pp. 311-313
Author(s):  
E. Troshkina ◽  
T. Glazovskaya ◽  
N. Kondakova ◽  
V. Sokolov

AbstractIn the mountains of the moist-subtropical zone of Western Transcaucasia seven zones of snowiness are distinguished, depending on the heights from sea level to the tops of mountain ranges. Data are taken from 17 years of snow-avalanche observations. In a legend of a map the quantitative characteristic of the avalanching conditions for each zone is given. Interannual variability of snow depth is up to 100 cm in low mountains and about 600 cm in the middle belt of mountains The inversion of snow accumulation is registered. The frequency cycles of heavy-snow (3–4 years) and of especially heavy-snow (10–12 years) winters are determined. The avalanche danger is provoked not by the total depth of the snow, but by the stormy snowfalls. The particular conditions of creation and development of nival processes are distinguished here: dry avalanches on the crests of mountains, wet avalanches in the middle mountains and slushflows in the low mountains. Despite low avalanche activity, avalanche risk is high due to the factor of unexpectedness.


1988 ◽  
Vol 11 ◽  
pp. 206 ◽  
Author(s):  
J. G. Paren ◽  
S. Cooper

New data on the thermal regime of George VI Ice Shelf have been obtained by thermistor chains installed through the use of a hot-water drill. Twenty thermistors are used at each site, spaced close together at sea-level and at the base of the ice shelf, and farther apart elsewhere in the ice shelf and in the sea beneath. Based on earlier observations (Bishop and Walton 1981, fig. 7) that the 10 m temperature warms from around −10°C in the central melt-lake area of the ice shelf (from 70°45′ to 71°45′S) to around −2°C near the northern ice front (70°00′S), the thermistor chains were deployed at three sites (70°00′, 70°15′ and 70°30′S) along a presumed flow line. The observations show that as ice flows towards the northern ice front of George VI Ice Shelf, it becomes more temperate in character. Heat from the sea and from the percolation of melt water at the upper surface progressively warms the ice shelf. At mid-depth (the coldest level in the ice shelf) the recorded temperatures were −6°C off Moore Point (70°30′S), −4°C off Carse Point (70°15′S) and, near the northern ice front (70°00′S), between −1.6° and −1.8°C depending on the time of year. The ice-shelf temperatures near the ice front, warmer in mid-summer than the freezing point of fully saline sea-water, are most unusual. The only explanation of the high, fluctuating temperatures found 1 year after drilling is that the hole through the ice shelf was open, allowing unimpeded water movement. This implies that the ice shelf is also warmed by the percolation of sea-water, whose presence was confirmed by ice-core drilling to below sea-level. Confirmation of the presence of brine below sea-level in the ice shelf comes from geo-electrical investigations. A Schlumberger georesistivity array modelled the ice shelf as a simple two-layer structure, with ordinary glacier overlying highly conductive ice. This is consistent with the fact that no radio echoes have been received from the bottom of George VI Ice Shelf to the north of 70°09′S. A detailed analysis of the ice-shelf / ocean-temperature profiles was undertaken. This included an analysis of the fluctuation observed in mid-summer at the warmest site and the subsequent transition to a stable isothermal profile through the submerged part of the ice shelf.


Genome ◽  
2002 ◽  
Vol 45 (2) ◽  
pp. 222-228 ◽  
Author(s):  
Ivan Scotti ◽  
Anna Mariani ◽  
Valentino Verona ◽  
Alberto Candolini ◽  
Carlo A Cenci ◽  
...  

Molecular, cytological, and morphological data support the existence of a hybrid population between Schoenus nigricans and Schoenus ferrugineus. This population was found in northeastern Italy, where S. nigricans is central with respect to its natural range and S. ferrugineus is marginal, being most common in the Alps and in central and northern Europe. Molecular marker data show that the putative hybrid population is genetically intermediate between nearby populations of the parent species. Cytological evidence confirmed the hybrid nature of this population, as does the almost complete sterility of plants within the population. Although no seeds were produced by the hybrid population, some possibly fertile pollen grains were produced; this suggests that the possibility of introgression between the two species through the hybrids cannot completely be excluded.Key words: Schoenus, AFLP markers, chromosome behaviour, introgression.


2006 ◽  
Vol 9 (1) ◽  
pp. 7-30 ◽  
Author(s):  
Pierre Pétrequin ◽  
Michel Errera ◽  
Anne-Marie Pétrequin ◽  
Pierre Allard

Two groups of quarries (Mont Viso and Mont Beigua, Italy) were the source of the Alpine axeheads that circulated throughout western Europe during the Neolithic. The quarries on Mont Viso (Oncino: Porco, Bulè and Milanese), discovered in 2003, have been radiocarbon-dated, and this has revealed that the exploitation of jadeites, omphacitites and eclogites at high altitude (2000–2400 m above sea level) seems to have reached its apogee in the centuries around 5000 BC. The products, in the form of small axe- and adze-heads, were distributed beyond the Alps from the beginning of the fifth millennium, a few being found as far away as the Paris Basin, 550 km from their source as the crow flies. However, it was not until the mid-fifth millennium BC that long axeheads from Mont Viso appeared in the hoards and monumental tombs of the Morbihan, 800 km from the quarries. Production continued until the beginning of the third millennium BC, but at this time the distribution of the products was less extensive, and the process of distribution operated in a different way: tools made from jadeite and eclogite are still found in the French Jura, but the extraction sites at the south-east foot of Mont Viso no longer seem to have been used. The variability in the geographical extent of the distribution at different times seems to be related to the social context of exploitation of the high-altitude quarries, which were only ever accessible for a few months each year.


2017 ◽  
Vol 10 ◽  
pp. 15-38
Author(s):  
Jacek Kolbuszewski

Mountaineering, tourism and literature at the turn of the 20th century — links and relations.A preliminary outlineThe second half of the 19th and the early 20th century were marked by extremely significant changes in mountaineering, tourism and literature, changes which can be described metaphorically as the vanguard of 20th-century modernity. Of great importance to the development of both mountaineering and mountain tourism was the creation of associations bringing together tourists and mountaineers, mountain lovers. The associations focused mainly on promoting mountain tourism, making the mountains more accessible building paths, trails, hostels and trying to protect the mountains against the effects of human impact and other civilisational processes — economic, social and technological. The increasingly evident division into mountaineering exploring the mountains by climbing them and tourism, and the spread of this tourism in all mountain ranges in Europe made mountaineering aspecialised form of communing with the mountains, requiring special qualifications and equipment. At the same mountain tourism became amulti-layered phe­nomenon, as it encompassed, in addition to the “classic” tourism “with backpacks”, resort tourism involving walks, atype of tourism playing an important role in socialising and styles of behaviour, completely different from the models characteristic of tourism in the first half of the 19th century. This led to the emergence of characteristic styles of this tourism, which was becoming an important element of bourgeois popular culture, aprocess that immediately resonated in literature. In the second half of the 19th and the first decade of the 20th century the substantial growth in the number of tourists arriving in mountain villages led to their rapid civilisational and economic development. However, the concept of building mountain railways that were to bring people closer to the most precious asset of the mountains — their intact primeval nature — was asimple extension of the sedentary lifestyle. The development of mountaineering consisted in traversing increasingly difficult routes. This involved not just the ordinary climbing of peaks, but traversing mountain walls. In 1880 and 1881, Albert Frederick Mummery, climbing Grands Charmoz 3,455 m and Grépon 3,482 m, became the first man to traverse extremely difficult routes Grade 5 in the Welzenbach scale. In 1884 Walter Parry Haskett Smith decided to traverse agrade 3 difficult route on his own and two years later he climbed the twenty-metre Lapes Needle in the Lake District, England, which gave rise to competitive climbing, adiscipline distinct from mountaineering. Mountaineers also produced literary works Eugčne Rambert. The so-called “Alpine literature” “la littérature alpestre” encompassed, as its unique variety, par excellence Alpine literature providing an image of the mountains from the point of view of mountaineering and way of approaching mountaineering. Its leading exponents were Edward Whymper and Leslie Stephen; Albert Frederic Mummery 1855–1895 won considerable renown as the author of My climbs in the Alps and Caucasus 1895 as did Henry Russel-Killough 1834–1909 regarded as excellent writer and aman who made a great contribution to the exploration of the Pyrenees Souvenirs d’un Montagnard, 1908. On the other hand, the ideological motivation of Polish mountaineering echoed with the philosophy of Friedrich Nietzsche, Arthur Schopenhauer and Henri Bergson, introducing the subject of mountain climbing into highbrow literature.


INSIST ◽  
2016 ◽  
Vol 1 (1) ◽  
pp. 65 ◽  
Author(s):  
A. Perwira Mulia Tarigan ◽  
Wiwin Nurzanah

Abstract – An examination of shoreline retreat is conducted over the muddy coast in the vicinities of the port of Belawan. The related sea level rise is estimated using the well-known Bruun Rule based on the characteristics of mud profile prevalent along the eastern coast of North Sumatera Province. The spatial analysis involved is done utilizing the concept and procedure of GIS. The averaged shoreline retreat over the hot spot area of erosion, i.e. 18 m per year, implies that the relative rate of sea level rise is in the range of 14 to 18 mm per year, indicating an extremely severe rate. In addition, three other cases of simple GIS applications related to coastal water of the port are spatially demonstrated.  Keywords –  coastal water, coastal erosion, sea level rise, and GIS


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