Dryas iulia

* Julia Butterfly ( Dryas iulia ) on Yellow Passion Flower and P. affinis

* Flambeau butterfly, Dryas iulia

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File: Dryas julia caterpillar. JPG | Caterpillar

File: Dryas julia ( A. Machado ). jpg | Two adults

It is believed that North Atlantic Deep Water formation has been dramatically reduced at times during the past ( such as during the Younger Dryas or during Heinrich events ), and that this might correlate with a decrease in the strength of the Gulf Stream and the North Atlantic drift, in turn cooling the climate of northwestern Europe.

In Eden in the East ( 1998 ), Stephen Oppenheimer suggests that a tree-worshipping culture arose in Indonesia and was diffused by the so-called " Younger Dryas " event of c. 8000 BCE, when the sea level rose.

: For other uses of Dryas or Drias see Dryas ( disambiguation ), Drias ( disambiguation ), Dryad ( disambiguation ), and Hamadryad ( disambiguation ).

: The generic name Dryas L. ( 1753 ) represents a genus of magnoliophytan plants ( family Rosaceae ), and at the same time Dryas Hübner, 1807 is also a lepidopteran insect genus ( family Nymphalidae ).

* Rose family ( Rosaceae )-Cinquefoil ( Potentilla ) or Silverweed ( Potentilla anserina or Argentina anserina ), Cloudberry ( Rubus chamaemorus ), Mountain avens ( Dryas octopetala ) ( flower of the Northwest Territories ), Snow Cinquefoil ( Potentilla nivea )

The extinction does not coincide with the end of the last ice age but does coincide however, with a minor yet severe climatic reversal that lasted for about 1, 000 – 1, 250 years, the Younger Dryas ( GS1-Greenland Stadial 1 ), characterized by glacial readvances and severe cooling globally, a brief interlude in the continuing warming subsequent to the termination of the last major ice age ( GS2 ), thought to have been due to a shutdown of the thermohaline circulation in the ocean due to huge influxes of cold fresh water from the preceding sustained glacial melting during the warmer Interstadial ( GI1-Greenland Interstadial 1-ca.

The Dryas monkey ( Cercopithecus dryas ), also known as Salonga monkey or ntolu, is a little-known species of guenon found only in the Congo Basin, restricted to the left bank of the Congo River.

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.

Although at first it appeared that they inhabit sets of unrelated plants ( alders, Australian pines, California lilac, bog myrtle, bitterbrush, Dryas ), revisions to the phylogeny of angiosperms show a close relatedness of these species and the legumes .< ref name = Vessey > These footnotes suggest the ontogeny of these replicates rather than the phylogeny.

The Allerød oscillation raised temperatures ( in the northern Atlantic region to almost present-day levels ), before they declined again in the succeeding Younger Dryas period, which was followed by the present interglacial period.

As a result, islands harbour arctic and alpine plant species such as Alpine Chickweed ( at its most southerly occurrence ), Dryas drummondii ( not found again for 1600 km ( 1000 mi ) north ), and Alpine Bistort, an Inuit delicacy eaten with seal oil.

Vegetation in the upland ( on hill slopes and terraces ) which constitute 90 % of southern drier areas of the park consist of forbs, such as Arctic Heather ( Cassiope tetragona ), Mountain Avens ( Dryas integrifolia ), Arctic Poppy ( Papaver radicatum ) and Mountain Sorrel ( Oxyria digyna ), grasses, such as Polar Grass ( Arctagrostis latifolia ), Northern Foxtail ( Alopecurus alpinus ), Bluegrass ( Poa arctica ) and Northern Wood Rush ( Luzula confusa ) and shrubs, such as Arctic Willow ( Salix arctica ) and Northern Bilberry ( Vaccinium uliginosum ).

This is believed to have disrupted currents in the Arctic Ocean and led to an abrupt 1, 300-year-long cold temperature shift called the Younger Dryas.

A goatherd named Lamon discovers Daphnis, and a shepherd called Dryas finds Chloe.

The Younger Dryas impact event is a discredited hypothesis that an air burst from a purported comet above or even into the Laurentide Ice Sheet north of the Great Lakes set all of the North American continent ablaze around 12, 900 years ago.

Dryas octopetala ( common names include mountain avens, white dryas, and white dryad ) is an arctic-alpine flowering plant in the family Rosaceae.

Dryas octopetala has a widespread occurrence throughout mountainous areas where it is generally restricted to limestone outcrops.

During these cold spells, Dryas octopetala was much more widely distributed than it is today, as large parts of the northern hemisphere that are now covered by forests were replaced in the cold periods by tundra.

Dryas (" oak ") is the name of nine characters in Greek mythology

Homer ( Iliad 4 ) says that Zeus struck him blind ; Dryas, the oak, is sacred to Zeus.

Two taxa formerly considered subspecies of the Diana monkey have recently been elevated to full species status: the Roloway monkey ( C. roloway ) is found in Côte d ' Ivoire and Ghana, and the Dryas monkey ( C. dryas ) found in the DR Congo.

It is now established that the animals previously classified as Cercopithecus salongo ( common name 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 Cercopithecus diana dryas, but it is geographically isolated from any known Diana monkey population.

While the Dryas monkey formerly was considered data deficient, recent evidence suggests it is very rare and its total population possibly number less than 200 individuals.

The diet of the Dryas is said to be made up of mostly vegetarian foods.

Visual and oral communication is very important, whether communicating to other Dryas monkeys, or communicating to other individuals.

The expected lifespan in the wild is between 10-15 years, and because there are currently no Dryas monkeys in captivity, that lifespan is unknown.

Dryas is a genus of perennial cushion-forming evergreen dwarf shrubs in the rose family Rosaceae, native to the arctic and alpine regions of Europe, Asia and North America.

The genus is named after the Greek nymph Dryas.

Dryas is the clan badge of Clan MacNeil of Scotland.

The Younger Dryas and Older Dryas stadials are geological periods of cold temperature that are named after Dryas octopetala, which flourished during that time and is used as a fossil indicator of those periods.