Lauritz Sømme
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Lauritz Sømme
Lauritz Sverdrup Sømme (born March 7, 1931) is a Norwegian entomologist. His work has focused on insects in houses and stored foods, and especially the wintering and cold tolerance of certain arthropods. Sømme has been on several expeditions to the Antarctic, participated in field trips to Svalbard, and visited various other extreme places on Earth in his research on arthropods and cold tolerance. Sømme was the editor of the ''Norwegian Journal of Entomology'' from 1966 to 1978 and he has published several books. He is an honorary member of the Norwegian Entomological Society. Since 2011, Sømme has been responsible for invertebrates in the ''Great Norwegian Encyclopedia''. Sømme taught entomology at University of Oslo, from introductory courses upwards. Part of his teaching took place at the field station at Finse and in Ny-Ålesund. Sømme retired in 1998. He is a member of the Norwegian Academy of Science and Letters. He was formerly married to the biochemist Randi Sø ...
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Randi Sømme
Randi is both a given name, and a nickname in the English language, popular in North America and Norway. It is primarily a feminine name, although there is recorded usage of the name by men. It may have originated as a pet form of '' Miranda'' or as a feminine form of ''Randy''. In turn, Randy was originally derived from the names '' Randall'', '' Randolf'', ''Randolph'', ''Bertrand'' and ''Andrew''. In Norway, Randi is a feminine name that emerged in the 1400s as a short form of Ragnfrid (). The original meaning in Old Norse is "God-lovable". Ragnfríðr was famously used about three different people in runic inscriptions from the Viking era. Later the variant Rangdid was common in the Middle Ages. Over 20 people with the name were mentioned in the Regesta Norvegica. By the 1600s the variant Randi was a common feminine name in Norway. Women known as Randi * Randi Altschul (born 1960), American toy inventor * Randi Anda (1898–1999), Norwegian politician * Randi Bakke (1904–1 ...
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Stable Fly
''Stomoxys calcitrans'' is known by the common names stable fly, barn fly, biting house fly, dog fly, and power mower fly. Unlike most members of the family Muscidae, ''Stomoxys calcitrans'' ('sharp mouth' + 'kicking') and others of its genus suck blood from mammals. Now found worldwide, the species is considered to be of Eurasian or African origin. Physical features The stable fly resembles the common housefly ('' Musca domestica''), though smaller, and on closer examination has a slightly wider and spotted abdomen. Adults are generally about in length and a lighter color than the housefly. Unlike the housefly, where the mouth part is adapted for sponging, the stable fly mouth parts have biting structures. An additional distinction from ''M. domestica'' is in the aristae, which bear a single, superior row of hairs in ''S. calcitrans'' instead of two opposing rows. Habitat As its name suggests, the stable fly is abundant in and around where cattle are kept. Its maggots are ...
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Bouvet Island
Bouvet Island ( ; ) is an uninhabited subantarctic volcanic island and dependency of Norway. It is a protected nature reserve, and situated in the South Atlantic Ocean at the southern end of the Mid-Atlantic Ridge, it is the world's most extreme points of Earth#Remoteness, remote island. Located north of the Antarctic Circle, Bouvet Island is not part of the southern region covered by the Antarctic Treaty System. The island lies north of the Princess Astrid Coast of Queen Maud Land, Antarctica, east of the South Sandwich Islands, south of Gough Island, and south-southwest of the coast of South Africa. It has an area of , 93 percent of which is covered by a glacier. The centre of the island is the ice-filled crater of an inactive volcano. Some Skerry, skerries and one smaller island, Larsøya, lie along its coast. Nyrøysa, created by a rock slide in the late 1950s, is the only easy place to land and is the location of a weather station. The island was first spotted on ...
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Pelophila Borealis
''Pelophila borealis'', the boreal mud-loving beetle, is a species of ground beetle in Nebriinae subfamily which was described by Gustaf von Paykull Gustav von Paykull (21 August 1757 – 28 January 1826) was a Sweden, Swedish'' friherre'' (circa baron) and Marshal of the Court (Sweden), Marshal of the Court, ornithologist, and entomologist. He was a member of the Royal Swedish Academy from ... in 1790. The species can be found in Belarus, Canada, Estonia, Finland, Latvia, Norway, Russia, and Sweden. It is black in colour and is shiny. The species ranges from in length. References External links * * Beetles described in 1790 Beetles of Europe Nebriinae {{Nebriinae-stub ...
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Ground Beetle
Ground beetles are a large, cosmopolitan distribution, cosmopolitan family (biology), family of beetles, the Carabidae, with more than 40,000 species worldwide, around 2,000 of which are found in North America and 2,700 in Europe. As of 2015, it is one of the 10 most species-rich animal families. They belong to the Adephaga. Members of the family are primarily Carnivore, carnivorous, but some members are Herbivore, herbivorous or Omnivore, omnivorous. Description and ecology Although their body shapes and coloring vary somewhat, most are shiny black or metallic and have ridged wing covers (elytra). The elytra are fused in some species, particularly the large Carabinae, rendering the beetles unable to fly. The species ''Mormolyce phyllodes'' is known as violin beetle due to their peculiarly shaped elytra. All carabids except the quite primitive flanged bombardier beetles (Paussinae) have a groove on their arthropod leg, fore leg tibiae bearing a comb of hairs used for cleaning the ...
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Supercooling
Supercooling, also known as undercooling, is the process of lowering the temperature of a liquid below its freezing point without it becoming a solid. Per the established international definition, supercooling means ''‘cooling a substance below the normal freezing point without solidification’.'' IIR International Dictionary of Refrigeration, http://dictionary.iifiir.org/search.php ASHRAE Terminology, https://www.ashrae.org/technical-resources/free-resources/ashrae-terminology While it can be achieved by different physical means, the postponed solidification is most often due to the absence of nucleation, seed crystals or nuclei around which a crystal structure can form. The supercooling of water can be achieved without any special techniques other than chemical demineralization, down to . Supercooled water can occur naturally, for example in the atmosphere, animals or plants. This phenomenon was first identified in 1724 by Daniel Gabriel Fahrenheit, while developing Fahren ...
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Leaf Beetle
The beetle family Chrysomelidae, commonly known as leaf beetles, includes over 37,000 (and probably at least 50,000) species in more than 2,500 genera, making it one of the largest and most commonly encountered of all beetle families. Numerous subfamilies are recognized, but the precise taxonomy and systematics are likely to change with ongoing research. Leaf beetles are partially recognizable by their tarsal formula, which appears to be 4-4-4, but is actually 5-5-5 as the fourth tarsal segment is very small and hidden by the third. As with many taxa, no single character defines Chrysomelidae; instead, the family is delineated by a set of characters. Some lineages are only distinguished with difficulty from longhorn beetles (family Cerambycidae), namely by the antennae not arising from frontal tubercles. Members of former chrysomelid subfamilies ( Orsodacnidae and Megalopodidae) are also difficult to differentiate from true chrysomelids. Adult and larval leaf beetles feed o ...
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Acari
Mites are small arachnids (eight-legged arthropods) of two large orders, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari. However, most recent genetic analyses do not recover the two as each other's closest relative within Arachnida, rendering the group invalid as a clade. Most mites are tiny, less than in length, and have a simple, unsegmented body plan. The small size of most species makes them easily overlooked; some species live in water, many live in soil as decomposers, others live on plants, sometimes creating galls, while others are predators or parasites. This last type includes the commercially destructive '' Varroa'' parasite of honey bees, as well as scabies mites of humans. Most species are harmless to humans, but a few are associated with allergies or may transmit diseases. The scientific discipline devoted to the study of mites is called acarology. Evolution and taxonomy Mites are not a defined taxon, b ...
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Springtail
Springtails (class Collembola) form the largest of the three lineages of modern Hexapoda, hexapods that are no longer considered insects. Although the three lineages are sometimes grouped together in a class called Entognatha because they have internal Arthropod mouthparts, mouthparts, they do not appear to be any more closely related to one another than they are to insects, which have external mouthparts. Springtails are omnivorous, free-living organisms that prefer moist conditions. They do not directly engage in the decomposition of organic matter, but contribute to it indirectly through the fragmentation of organic matter and the control of soil microbial communities. The word ''Collembola'' is from Ancient Greek 'glue' and 'peg'; this name was given due to the existence of the collophore, which was previously thought to stick to surfaces to stabilize the creature. Early DNA sequence studies suggested that Collembola represent a separate Lineage (evolution), evolutionary ...
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Beetle
Beetles are insects that form the Taxonomic rank, order Coleoptera (), in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described arthropods and 25% of all known animal species; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. However, the number of beetle species is challenged by the number of species in Fly, dipterans (flies) and hymenopterans (wasps). Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ...
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Alberta
Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, the Northwest Territories to its north, and the U.S. state of Montana to its south. Alberta and Saskatchewan are the only two landlocked Canadian provinces. The eastern part of the province is occupied by the Great Plains, while the western part borders the Rocky Mountains. The province has a predominantly humid continental climate, continental climate, but seasonal temperatures tend to swing rapidly because it is so arid. Those swings are less pronounced in western Alberta because of its occasional Chinook winds. Alberta is the fourth largest province by area, at , and the fourth most populous, with 4,262,635 residents. Alberta's capital is Edmonton; its largest city is Calgary. The two cities are Alberta's largest Census geographic units ...
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Lethbridge
Lethbridge ( ) is a city in the province of Alberta, Canada. With a population of 106,550 in the 2023 Alberta municipal censuses, 2023 municipal census, Lethbridge became the fourth Alberta city to surpass 100,000 people. The nearby Canadian Rockies, Canadian Rocky Mountains contribute to the city's warm summers, mild winters, and Chinook wind, windy climate. Lethbridge lies approximately southeast of Calgary on the Oldman River and northwest of the Canada–United States border at the Sweetgrass–Coutts Border Crossing. Lethbridge is the commercial, educational, financial, industrial and transportation centre of southern Alberta. The city's economy developed from drift mining for coal in the late 19th century and agriculture in the early 20th century. Half of the workforce is employed in the health, education, retail and hospitality sectors, and the top five employers are government-based. The University of Lethbridge, the only university in Alberta south of Calgary, is l ...
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