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Dryas Oxyodonta
{{disambiguation, genus ...
Dryas may refer to: Biology * ''Dryas'' (plant), a genus of plants * ''Dryas'', a monotypic genus of butterflies containing the single species '' Dryas iulia'' * Dryas monkey (''Cercopithecus dryas''), a little-known species of guenon found only in the Congo Basin Geology * Dryas, the name of several climatic periods, named for their abundant dryas flowers: ** Oldest Dryas ** Older Dryas ** Middle Dryas ** Younger Dryas Other uses * Dryas (mythology), several characters in Greek mythology * Drias, Kavala, or Dryas, a village in Greece See also * Dryad (other) A dryad is a form of mythological Greek nymph associated with trees. Dryad may also refer to: Military * , any one of several ships of the Royal Navy * ''Dryad''-class torpedo gunboat, in the Royal Navy * Operation Dryad, a British Second World ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryas (plant)
''Dryas'' is a genus of perennial cushion-forming evergreen dwarf shrubs in the family Rosaceae, native to the arctic and alpine regions of Europe, Asia and North America. The genus is named after the dryads, the tree nymphs of ancient Greek mythology. The classification of ''Dryas'' within the Rosaceae has been unclear. The genus was formerly placed in the subfamily Rosoideae, but is now placed in subfamily Dryadoideae. The species are superficially similar to ''Geum'' (with which they share the common name avens), ''Potentilla'', and ''Fragaria'' (strawberry). However, ''Dryas'' are distinct in having flowers with ''eight'' petals (rarely seven or up to ten), instead of the five petals found in most other genera in the Rosaceae. The flowers are erect and white with a yellow centre (''Dryas integrifolia'', ''Dryas octopetala'') or pendulous and all-yellow ('' Dryas drummondii''), and held conspicuously above the small plants. This makes them very popular in rockeries and alpine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryas Iulia
''Dryas iulia'' (often incorrectly spelled ''julia''),Lamas, G. (editor) (2004). Atlas of Neotropical Lepidoptera. Checklist: Part 4A. Hesperioidea – Papilionoidea. commonly called the Julia butterfly, Julia heliconian, the flame, or flambeau, is a species of brush-footed (or nymphalid) butterfly. The sole representative of its genus ''Dryas'', it is native from Brazil to southern Texas and Florida, and in summer can sometimes be found as far north as eastern Nebraska. Over 15 subspecies have been described. Its wingspan ranges from 82 to 92 mm, and it is colored orange (brighter in male specimens) with black markings; this species is somewhat unpalatable to birds and belongs to the "orange" Mullerian mimicry complex. This butterfly is a fast flier and frequents clearings, paths, and margins of forests and woodlands. It feeds on the nectar of flowers, such as lantanas (''Lantana'') and shepherd's-needle (''Scandix pecten-veneris''), and the tears of caiman, the eye of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryas Monkey
The Dryas monkey (''Chlorocebus dryas''), also known as Salonga monkey, ''ekele'', or ''inoko'', is a little-known species of Old World monkey found only in the Congo Basin, restricted to the left bank of the Congo River. It is now established that the animals that had been classified as ''Cercopithecus salongo'' (the common name being Zaire Diana monkey) were in fact Dryas monkeys. Some older sources treat the Dryas monkey as a subspecies of the Diana monkey and classify it as ''C. diana dryas'', but it is geographically isolated from any known Diana monkey population. While the Dryas monkey had been considered data deficient, evidence suggests it is very rare and its total population possibly numbers fewer than 200 individuals. Consequently, its status was changed to critically endangered in the 2008 IUCN Red List. Database entry includes justification for why this species was listed as critically endangered Along with being listed by the IUCN, this species is also listed o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oldest Dryas
The Oldest Dryas is a biostratigraphic subdivision layer corresponding to a relatively abrupt climatic cooling event, or stadial, which occurred during the last glacial retreat. The time period to which the layer corresponds is poorly defined and varies between regions, but it is generally dated as starting at 18.5–17 thousand years ( ka) before present (BP) and ending 15–14 ka BP. As with the Younger and Older ''Dryas'' events, the stratigraphic layer is marked by abundance of the pollen and other remains of ''Dryas octopetala'', an indicator species that colonizes arctic-alpine regions. In the Alps, the Oldest Dryas corresponds to the Gschnitz stadial of the Würm glaciation. The term was originally defined specifically for terrestrial records in the region of Scandinavia, but has come to be used both for ice core stratigraphy in areas across the world, and to refer to the time period itself and its associated temporary reversal of the glacial retreat. Flora Durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Older Dryas
The Older Dryas was a stadial (cold) period between the Bølling and Allerød interstadials (warmer phases), about 14,000 years Before Present, towards the end of the Pleistocene. Its date is not well defined, with estimates varying by 400 years, but its duration is agreed to have been around 200 years. The gradual warming since the Last Glacial Maximum (27,000 to 24,000 years BP) has been interrupted by two cold spells: the Older Dryas and the Younger Dryas (c. 12,900–11,650 BP). In northern Scotland, the glaciers were thicker and deeper during the Older Dryas than the succeeding Younger Dryas, and there is no evidence of human occupation of Britain. In Northwestern Europe there was also an earlier Oldest Dryas (18.5–17 ka BP 15–14 ka BP). The Dryas are named after an indicator genus, the Arctic and Alpine plant Dryas, the remains of which are found in higher concentrations in deposits from colder periods. The Older Dryas was a variable cold, dry Blytt–Sernander perio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Dryas
The Older Dryas was a stadial (cold) period between the Bølling and Allerød interstadials (warmer phases), about 14,000 years Before Present, towards the end of the Pleistocene. Its date is not well defined, with estimates varying by 400 years, but its duration is agreed to have been around 200 years. The gradual warming since the Last Glacial Maximum (27,000 to 24,000 years BP) has been interrupted by two cold spells: the Older Dryas and the Younger Dryas (c. 12,900–11,650 BP). In northern Scotland, the glaciers were thicker and deeper during the Older Dryas than the succeeding Younger Dryas, and there is no evidence of human occupation of Britain. In Northwestern Europe there was also an earlier Oldest Dryas (18.5–17 ka BP 15–14 ka BP). The Dryas are named after an indicator genus, the Arctic and Alpine plant Dryas, the remains of which are found in higher concentrations in deposits from colder periods. The Older Dryas was a variable cold, dry Blytt–Sernander per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Younger Dryas
The Younger Dryas (c. 12,900 to 11,700 years BP) was a return to glacial conditions which temporarily reversed the gradual climatic warming after the Last Glacial Maximum (LGM, c. 27,000 to 20,000 years BP). The Younger Dryas was the last stage of the Pleistocene epoch (c. 2,580,000 to 11,700 years BP) and it preceded the current, warmer Holocene epoch. The Younger Dryas was the most severe and long lasting of several interruptions to the warming of the Earth's climate, and it was preceded by the Late Glacial Interstadial (c. 14,670 to 12,900 BP). The change was relatively sudden, taking place in decades, and it resulted in a decline of temperatures in Greenland by 4~10 °C (7.2~18 °F), and advances of glaciers and drier conditions over much of the temperate Northern Hemisphere. A number of theories have been put forward about the cause, and the most widely supported by scientists is that the Atlantic meridional overturning circulation, which transports warm water fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryas (mythology)
Dryas (Ancient Greek: , gen. , from "oak") is the name of several figures in Greek mythology, including: * Dryas, an Egyptian prince as one of the sons of King Aegyptus.Apollodorus, 2.1.5 His mother was the naiad Caliadne and thus full brother of Eurylochus, Phantes, Peristhenes, Hermus, Potamon, Cisseus, Lixus, Imbrus, Bromius, Polyctor and Chthonius. In some accounts, he could be a son of Aegyptus either by Eurryroe, daughter of the river-god Nilus, or Isaie, daughter of King Agenor of Tyre. Dryas suffered the same fate as his other brothers, save Lynceus, when they were slain on their wedding night by their wives who obeyed the command of their father King Danaus of Libya. He married the Danaid Hecabe or Eurydice, daughter of Danaus and the naiad Polyxo. * Dryas, a Thracian prince as son of King Lycurgus, king of the Edoni in Thrace. He was killed when Lycurgus went insane and mistook him for a mature trunk of ivy, a plant holy to the god Dionysus, whose cult Lycurgus w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drias, Kavala
Drias, also referred to as Dryas ( el, Δρυάς), is a village in Kavala, Greece. The village takes its name after the mythological Greek nymphs Dryads A dryad (; el, Δρυάδες, ''sing''.: ) is a tree nymph or tree spirit in Greek mythology. ''Drys'' (δρῦς) signifies "oak" in Greek, and dryads were originally considered the nymphs of oak trees specifically, but the term has evolved to ... ( el, Δρυάδες). Locations near Drias include the small villages of Paleochori (Kavala), and Antifilippi. Kavala (regional unit) Buildings and structures in Eastern Macedonia and Thrace {{EMacedoniaThrace-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
