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Bombus Hyperboreus
''Bombus hyperboreus'' is a species of Arctic bumblebee with a circumpolar distribution. The species is primarily found in the arctic areas of Greenland, northern Scandinavia, and Russia. In 2015 the nearctic species, '' Bombus natvigi'', was separated from this species, based on genetic analysis. Accordingly, ''Bombus hyperboreus'' is limited to the Palaearctic, despite older literature listing this species as occurring in the Nearctic. It is a brood parasite, and attacks and enslaves other bumblebee colonies in order to reproduce as they do not even have the ability to produce workers themselves. Most of its targets are colonies of species of the same subgenus, '' Alpinobombus''. Taxonomy and phylogeny ''Bombus hyperboreus'' was originally named ''B. arcticus'' in 1802. Zoologist Carl Schönherr independently named the species as ''B. hyperboreus'' in 1809. It was not until 1950 that ''B. hyperboreus'' was used commonly to identify the species, when it was recognized that the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Johan Schönherr
Carl Johan Schönherr (10 June 1772 – 28 March 1848) was a Swedish entomologist who revised the taxonomy of beetles, including weevils. Born in Stockholm, Schönherr was son of a German immigrant who had established himself as a silk manufacturer. At the age of nineteen, he took over the business together with his mother and developed it into a considerable size, with about 200 workers. In 1805, he entered partnership with Erik Lundgren, and in 1811 he sold the business to him, while retiring to his manor Sparresäter in Lerdala outside Skara in Västergötland, where he died in 1848. Schönherr had taken an interest in entomology since the age of twelve and was later further stimulated through his friendship with Gustaf Johan Billberg, his brother-in-law from his second marriage.Bengt Ehnström, "Schönherr, Carl Johan", ''Svenskt biografiskt lexikon'', vol. 31, p. 755. He was an eminent coleopterist co-operating with Carl Henrik Boheman and Leonard Gyllenhaal. Schönherr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdomen
The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. The abdomen is the front part of the abdominal segment of the torso. The area occupied by the abdomen is called the abdominal cavity. In arthropods it is the posterior tagma of the body; it follows the thorax or cephalothorax. In humans, the abdomen stretches from the thorax at the thoracic diaphragm to the pelvis at the pelvic brim. The pelvic brim stretches from the lumbosacral joint (the intervertebral disc between L5 and S1) to the pubic symphysis and is the edge of the pelvic inlet. The space above this inlet and under the thoracic diaphragm is termed the abdominal cavity. The boundary of the abdominal cavity is the abdominal wall in the front and the peritoneal surface at the rear. In vertebrates, the abdomen is a large body cavity enclosed by the abdominal muscles, at front and to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golden-belted Bumblebee
''Bombus balteatus'', the golden-belted bumble bee, is a species of bumblebee with a boreal and high altitude distribution in northern Eurasia and North America. Range and distribution This species is found in Finland, northern Sweden, Russia, and North America from arctic Alaska, Canada, and mountain ranges in the United States such as the Sierra Nevada and the White Mountains down south to New Mexico. Their preferred habitat includes high altitude and boreal regions, and they are often found at higher elevations than the tree line. ''Bombus balteatus'' is often most abundant where ''Castilleja'', '' Chrysothammnus'', and '' Mertensia'' plant species are common. Some populations of bees, including in the Rocky Mountains, specifically Mount Evans, Niwot Ridge and Pennsylvania Mountain have declined in the 21st century. Morphology ''Bombus balteatus'' is a long-tongued bumblebee. Often the tongue length reaches two-thirds or more the length of the body. This morpholog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitism
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the hos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrola Grandiflora
''Pyrola grandiflora'' (, commonly known as Arctic wintergreen or largeflowered wintergreen, is a hardy perennial evergreen subshrub in the family Ericaceae. It is widely distributed in the Northern Hemisphere from temperate to tundra-like climates. Taxonomy According to A. E. Porsild in 1939, there are three recognized varieties of ''Pyrola grandiflora'' that includes var. ''canadensis'', var. ''gormanii'', and var. ''grandiflora'' which slightly differ in terms of leaf and floral morphology, fragrance, and habitat. For example, P. canadensis Andres are found in the southern lowlands and are taller and often have smaller flowers than normal. Distribution ''Pyrola grandiflora'' is found throughout the Northern Hemisphere and is circumpolar including places: Greenland, Canada, United States, Alaska, Yukon, Northwest Territories Islands, Continental Northwest Territories, Nunavut Islands, Continental Nunavut, Northern Quebec, Eurasia, and the Arctic. Habitat and ecology According ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Glauca
''Salix glauca'' is a species of flowering plant in the willow family known by the common names gray willow, grayleaf willow, white willow, and glaucous willow. It is native to North America, where it occurs throughout much of Alaska, northern and western Canada, and the contiguous United States south through the Rocky Mountains to northern New Mexico.Uchytil, Ronald J. 1992''Salix glauca''.In: Fire Effects Information System, nline U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. It can also be found in Greenland, northwestern Europe, and Siberia. Description This willow is usually a shrub growing up to tall, but in appropriate habitat it becomes a tree up to tall. The smooth gray bark becomes furrowed with age. The species is dioecious, with male and female reproductive parts occurring on separate individuals. This species has secondary sexual dimorphism, with male and female individuals different in function or mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solidago Virgaurea
''Solidago virgaurea'', the European goldenrod or woundwort, is an herbaceous perennial plant of the family Asteraceae. It is widespread across most of Europe as well as North Africa and northern, central, and southwestern Asia (China, Russia, India, Turkey, Kazakhstan, etc.). It is grown as a garden flower with many different cultivars. It flowers profusely in late summer. ''Solidago virgaurea'' is a perennial herb up to 100 cm (40 inches) tall, with a branching underground caudex and a woody rhizome. It produces arrays of numerous small yellow flower heads at the top of the stem. ;Subspecies and varieties *''Solidago virgaurea'' subsp. ''alpestris'' (Waldst. & Kit.) Gremli *''Solidago virgaurea'' subsp. ''armena'' (Grossh.) Greuter *''Solidago virgaurea'' subsp. ''asiatica'' Kitam. ex Hara *''Solidago virgaurea'' var. ''calcicola'' Fernald *''Solidago virgaurea'' subsp. ''caucasica'' (Kem.-Nath.) Greuter *''Solidago virgaurea'' subsp. ''dahurica'' (Kitag.) Kitag. *''Sol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaccinium
''Vaccinium'' is a common and widespread genus of shrubs or dwarf shrubs in the heath family (Ericaceae). The fruits of many species are eaten by humans and some are of commercial importance, including the cranberry, blueberry, bilberry (whortleberry), lingonberry (cowberry), and huckleberry. Like many other ericaceous plants, they are generally restricted to acidic soils. Description The plant structure varies between species: some trail along the ground, some are dwarf shrubs, and some are larger shrubs perhaps tall. Some tropical species are epiphytic. Stems are usually woody. Flowers are epigynous with fused petals, and have long styles that protrude from their bell-shaped corollas. Stamens have anthers with extended tube-like structures called "awns" through which pollen falls when mature. Inflorescences can be axillary or terminal. The fruit develops from an inferior ovary, and is a four- or five-parted berry; it is usually brightly coloured, often being red or bluis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willow
Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known as willow, but some narrow-leaved shrub species are called osier, and some broader-leaved species are referred to as sallow (from Old English ''sealh'', related to the Latin word ''salix'', willow). Some willows (particularly arctic and alpine species) are low-growing or creeping shrubs; for example, the dwarf willow (''Salix herbacea'') rarely exceeds in height, though it spreads widely across the ground. Description Willows all have abundant watery bark sap, which is heavily charged with salicylic acid, soft, usually pliant, tough wood, slender branches, and large, fibrous, often stoloniferous roots. The roots are remarkable for their toughness, size, and tenacity to live, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Lapponicum
''Rhododendron lapponicum'' (高山杜鹃), the Lapland rosebay, is a dwarf rhododendron species found in subarctic regions of North America, Europe and Asia, where it grows at altitudes ranging from sea level to . It is an evergreen prostrate shrub growing to in height, with leaves that are oblong-elliptic or ovate-elliptic to oblong-obovate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular ..., 0.4–1.5 by 0.2–0.5 cm in size. The flowers are reddish or purple. Despite numerous attempts, this dwarf species has proved difficult to cultivate, possibly because it requires very cool, moist conditions and snow cover for part of the year. References * "''Rhododendron lapponicum''", (Linnaeus) Wahlenberg, ''Fl. Lapp.'' 104. 1812. The Plant ListFlora of ChinaHirsutum.com la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bartsia Alpina
''Bartsia alpina'' is a species of perennial flowering plant, known by the common name alpine bartsia or velvetbells. It is found in the mountainous regions of Europe and also occurs in Iceland, Greenland and north‐eastern Canada. Description ''Bartsia alpina'' is a hemiparasitic perennial plant with a woody rhizome, growing to a height of between . The stem is erect and sometimes branched, hairy and purple in colour. The leaves are in opposite pairs, with oval leaf blades up to long and toothed margins. At the base of the plant, the leaves are green, but higher up they are tinged with purple. The corolla is dark purple and is about long. It is narrow at the base and has two lips, an obtuse upper lip and a smaller lower one, with three blunt, equal-sized lobes. It has four stamens fused to the corolla and two ovaries fused to the style. The fruit is an oval brown capsule. File:Bartsia alpina Sturm57.jpg, Botanical illustration by Jacob Sturm, 1796 File:Bartsia alpina T69.jpg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astragalus Alpinus
''Astragalus alpinus'' is a species of flowering plant in the legume family known by the common name alpine milkvetch. It has a circumpolar distribution, occurring throughout the upper latitudes of the Northern Hemisphere. Distribution It is widespread in Eurasia. In North America it occurs from Alaska to Newfoundland and as far south as Nevada and New Mexico. Description This plant is variable in appearance. In general, it is a perennial herb growing from a taproot and rhizome network topped with an underground caudex. The roots have nitrogen-fixing nodules. The aboveground stems are up to long and are mostly decumbent, forming a mat. The leaves are up to long and are made up of several pairs of leaflets each up to long. The inflorescence is a raceme of up to 30 flowers each about long. The flowers are purple or blue.J.M. Gillett, L.L. Consaul, S.G. Aiken and M.J. Dallwitz (1999 onwards)Fabaceae of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identifica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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