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The Last Glacial Maximum ( LGM ), also referred to as the Last Glacial Coldest Period , was the most recent time during the Last Glacial Period where ice sheets were at their greatest extent 26,000 and 20,000 years ago. Ice sheets covered much of Northern North America , Northern Europe , and Asia and profoundly affected Earth 's climate by causing a major expansion of deserts, along with a large drop in sea levels.

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91-437: Stillaguamish can refer to: Stillaguamish people , a Coast Salish people of Washington Stillaguamish Tribe of Indians of Washington , a federally recognized tribe Places [ edit ] Stillaguamish River Stillaguamish Reservation , Washington Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with

182-582: A Southern Coast Salish people Indigenous to the Stillaguamish River valley in northwestern Washington State in the United States, near the city of Arlington, Washington . The Stillaguamish speak Northern Lushootseed , a Coast Salish language. Although usage of the language has declined, there are ongoing revitalization efforts by the Stillaguamish Tribe. The Stillaguamish emerged after

273-508: A cold reversal caused a replacement of much of the arboreal vegetation with Magellanic moorland and Alpine species. On Isla Grande de Chiloé , Magellanic moorland and closed-canopy Nothofagus forests were both present during the LGM, but the former disappeared by the late LGM. Little is known about the extent of glaciers during Last Glacial Maximum north of the Chilean Lake District . To

364-471: A democratically elected, six-member tribal council. In 1974, the Stillaguamish Tribe petitioned for recognition from the United States' government. The Stillaguamish Tribe achieved federal recognition and treaty on October 27, 1976. In 2003, the enrolled population of the Stillaguamish Tribe was 237. The Stillaguamish Tribe manages the salmon populations in the Stillaguamish River watershed with

455-516: A fishing station, such as a weir or large fish trap, where salmon and other fish were caught for eating fresh, smoking, or drying. There were two large weirs on the Stillaguamish at the villages at what are now Florence and Trafton . Early settlers and visitors to the territory of the Stillaguamish thought their talent for fishing in even the most turbulent waters was remarkable. Even today, many Stillaguamish people largely rely on fishing salmon as

546-720: A formal measurement of uncalibrated radiocarbon years , counted from 1950). In New Zealand and neighbouring regions of the Pacific, temperatures may have been further depressed during part of the LGM by the world's most recent supervolcanic eruption , the Oruanui eruption , approximately 25,500 years BP. However, it is estimated that during the LGM, low-to-mid latitude land surfaces at low elevation cooled on average by 5.8 °C relative to their present-day temperatures, based on an analysis of noble gases dissolved in groundwater rather than examinations of species abundances that have been used in

637-401: A formality, and were rarely denied. The understanding of territory was constantly in flux, as kinship rights between individuals would repeatedly be redefined. Despite this, boundaries were well understood, especially around villages and certain important harvesting sites. Fishing stations and certain important gathering areas close to a village were closely controlled by their owners. However,

728-481: A local glacial maximum in the region. In northeastern Italy , in the region around Lake Fimon , Artemisia -dominated semideserts, steppes, and meadow-steppes replaced open boreal forests at the start of the LGM, specifically during Heinrich Stadial 3. The overall climate of the region became both drier and colder. In the Sar Mountains , the glacial equilibrium-line altitude was about 450 metres lower than in

819-440: A longhouse in about 3–4 months. The Stillaguamish also built large fortified longhouses called stronghouses, where trade goods and other valuables were kept. The village at Cubial had a 150-foot-long stronghouse that was fortified with spikes and traps along the entire perimeter. The traditional primary vessel of the Stillaguamish is the river canoe. As they live on the swift-flowing Stillaguamish, they were experts at navigating

910-480: A means of gathering food and for economic gain. The Stillaguamish traditionally both hunted and domesticated animals. Animals were traditionally hunted primarily for food and clothing, as well as trading with other groups. The primary animals hunted were deer, elk, bear, and mountain goat. The area north of sq̓ʷuʔalqʷuʔ up to Pilchuck Creek and Lake Cavanaugh were prime places for getting deer. Stillaguamish people also traveled to areas used by other tribes, like

1001-410: A mixture of grassland and tundra prevailed, and even here, the northern limit of tree growth was at least 20° farther south than today. In the period before the LGM, many areas that became completely barren desert were wetter than they are today, notably in southern Australia, where Aboriginal occupation is believed to coincide with a wet period between 40,000 and 60,000 years Before Present (BP,

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1092-508: A retaliation for murder, broken promises, territory violations, or raiding. Because of the Stillaguamish River's remoteness, the Stillaguamish did not have much contact from Europeans prior to the signing of the Treaty. On January 22, 1855, the Stillaguamish were party to the Treaty of Point Elliot , listed as the "Stoluck-wa-mish." Although the Stillaguamish attended the signing and were listed on

1183-461: A slow change in vegetation towards a sparsely distributed vegetation dominated by Nothofagus species. Within this parkland vegetation Magellanic moorland alternated with Nothofagus forest, and as warming progressed even warm-climate trees began to grow in the area. It is estimated that the tree line was depressed about 1,000 m relative to present day elevations during the coldest period, but it rose gradually until 19,300 years ago. At that time

1274-414: A small minority of commoners, made up of freed slaves, refugees, orphans, and others who were otherwise ostracized from society. The slave class was by far the smallest. Slaves were former prisoners of war, and war was relatively infrequent. Only the wealthiest and most prestigious owned slaves. Society was traditionally dominated by the village and the family. There was no formal social organization higher

1365-416: Is an anglicization of their Lushootseed endonym , stuləgʷabš . The Lushootseed name means "people of the river," from the root word stuləkʷ meaning "river" and the suffix =abš meaning "people." The name stuləgʷabš is a drainage term, referring not to a central village but to all the people living along the Stillaguamish River. The Stillaguamish people and their ancestors have lived in

1456-412: Is now Marysville ( Lushootseed : sɬəp̓qs ). Potatoes began being planted after their introduction. They were first planted at the village between Florence and Silvana, and soon after they had spread to many of the Stillaguamish villages where they were maintained around the village, and planted at prairies like at xʷbaqʷab . The Stillaguamish traditionally had several types of housing. During

1547-451: Is the name which was given to those living along the lowest reaches of the Stillaguamish River. The name means "yellow people," from √qʷac meaning "yellow" and the suffixes =aʔkʷ=bixʷ meaning "people." The name refers to their unique practice of painting themselves yellow, rather than the traditional red. Originally, the Quadsack were a separate group from (but very closely-tied with)

1638-413: Is used for crafting house posts, canoes, houses, storage, and more. The bark is used for making rope, and weaving baskets, hats, clothing, and mats. The bark is also used in medicine, food, and some weaving of textiles. The primary food resource for the Stillaguamish is salmon. Salmon were once plentiful in the rivers, and were caught at fishing stations, with traps, or with spears. Each village would have

1729-650: The Baltic Shield , and in Russia in particular, the LGM ice margin of the Fennoscandian Ice Sheet was highly lobate. The main LGM lobes of Russia followed the Dvina , Vologda and Rybinsk basins respectively. Lobes originated as result of ice following shallow topographic depressions filled with a soft sediment substrate. The northern Ural region was covered in periglacial steppes. Permafrost covered Europe south of

1820-749: The Barents Sea , the Kara Sea , and Novaya Zemlya , ending at the Taymyr Peninsula in what is now northwestern Siberia. Warming commenced in northern latitudes around 20,000 years ago, but it was limited and considerable warming did not take place until around 14,600 year ago. In northwestern Russia , the Fennoscandian ice sheet reached its LGM extent approximately 17,000 years ago, about five thousand years later than in Denmark, Germany and Western Poland. Outside

1911-597: The Cantabrian Mountains of the northwestern corner of the Iberian Peninsula , which in the present day have no permanent glaciers, the LGM led to a local glacial recession as a result of increased aridity caused by the growth of other ice sheets farther to the east and north, which drastically limited annual snowfall over the mountains of northwestern Spain. The Cantabrian alpine glaciers had previously expanded between approximately 60,000 and 40,000 years ago during

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2002-747: The Gulf of Oman . Bathymetric data suggests there were two palaeo-basins in the Persian Gulf. The central basin may have approached an area of 20,000 km , comparable at its fullest extent to lakes such as Lake Malawi in Africa. Between 12,000 and 9,000 years ago much of the Gulf's floor was not covered by water, only being flooded by the sea after 8,000 years ago. It is estimated that annual average temperatures in Southern Africa were 6 °C lower than at present during

2093-595: The Hex River Mountains , in the Western Cape , block streams and terraces found near the summit of Matroosberg evidences past periglacial activity which likely occurred during the LGM. Palaeoclimatological proxies indicate the region around Boomplaas Cave was wetter, with increased winter precipitation. The region of the Zambezi River catchment was colder relative to present and the local drop in mean temperature

2184-589: The Andes occupying lacustrine and marine basins where they spread out forming large piedmont glacier lobes . Glaciers extended about 7 km west of the modern Llanquihue Lake , but not more than 2 to 3 km south of it. Nahuel Huapi Lake in Argentina was also glaciated by the same time. Over most of the Chiloé Archipelago , glacier advance peaked 26,000 years ago, forming a long north–south moraine system along

2275-611: The Great Barrier Reef was enhanced due to low atmospheric CO 2 levels. The deep waters of the Indian Ocean were significantly less oxygenated during the LGM compared to the Middle Holocene. The deep South Indian Ocean in particular was an enormous carbon sink, partially explaining the very low p CO 2 of the LGM. The intermediate waters of the southeastern Arabian Sea were poorly ventilated relative to today because of

2366-594: The Holocene. In Greece , steppe vegetation predominated. Megafaunal abundance in Europe peaked around 27,000 and 21,000 BP; this bountifulness was attributable to the cold stadial climate. In Greenland, the difference between LGM temperatures and present temperatures was twice as great during winter as during summer. Greenhouse gas and insolation forcings dominated temperature changes in northern Greenland, whereas Atlantic meridional overturning circulation (AMOC) variability

2457-508: The Indigenous peoples. The Stillaguamish were overlooked in the process, and a reservation was not set up for the Stillaguamish. In May 1856, the Stillaguamish were forced to move to the temporary reservation at Holmes Harbor on Whidbey Island , which was established for the Snohomish , Snoqualmie , and Skykomish peoples. Only one family remained, because they were too sick to leave. However, with

2548-674: The LGM except in transient intervals around 23,200 and 22,300 BP. In the western South Atlantic , where Antarctic Intermediate Water forms, sinking particle flux was heightened as a result of increased dust flux during the LGM and sustained export productivity. The increased sinking particle flux removed neodymium from shallow waters, producing an isotopic ratio change. On the Island of Hawaii , geologists have long recognized deposits formed by glaciers on Mauna Kea during recent ice ages. The latest work indicates that deposits of three glacial episodes since 150,000 to 200,000 years ago are preserved on

2639-534: The LGM, 21,000 years ago, the sea level was about 125 meters (about 410 feet) lower than it is today. Across most of the globe, the hydrological cycle slowed down, explaining increased aridity in many regions of the world. In Africa and the Middle East, many smaller mountain glaciers formed, and the Sahara and other sandy deserts were greatly expanded in extent. The Atlantic deep sea sediment core V22-196, extracted off

2730-668: The Last Glacial Maximum. This temperature drop alone would however not have been enough to generate widespread glaciation or permafrost in the Drakensberg Mountains or the Lesotho Highlands . Seasonal freezing of the ground in the Lesotho Highlands might have reached depths of 2 meters or more below the surface. A few small glaciers did however develop during the LGM, in particular in south-facing slopes. In

2821-663: The Laurentide Ice Sheet reached 3.2 km in height around Keewatin Dome and about 1.7-2.1 km along the Plains divide. In addition to the large Cordilleran Ice Sheet in Canada and Montana , alpine glaciers advanced and (in some locations) ice caps covered much of the Rocky and Sierra Nevada Mountains further south. Latitudinal gradients were so sharp that permafrost did not reach far south of

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2912-687: The North Atlantic was reduced, as measured by the increased proportion of radiogenic isotopes in neodymium isotope ratios. There is controversy whether upwelling off the Moroccan coast was stronger during the LGM compared to today. Though coccolith size increases in Calcidiscus leptoporus suggest stronger trade winds during the LGM caused there to be increased coastal upwelling of the northwestern coast of Africa, planktonic foraminiferal δ C records show upwelling and primary productivity were not enhanced during

3003-465: The North Atlantic were better ventilated during the LGM by Glacial North Atlantic Intermediate Water (GNAIW) relative to its present-day ventilation by upper North Atlantic Deep Water (NADW). GNAIW was nutrient poor compared to present day upper NADW. Below GNAIW, southern source bottom water that was very rich in nutrients filled the deep North Atlantic. Due to the presence of immense ice sheets in Europe and North America, continental weathering flux into

3094-526: The Quadsack villages were mixed-use by the Stillaguamish and Quadsack after the epidemic. The village at dxʷtux̌ʷub was a mixed village of the Stillaguamish, Quadsack, and Snohomish. According to anthropologist Colin Tweddell, the Quadsack as a whole were a subgroup of the Snohomish. The Stillaguamish traditionally speak a subdialect of Northern Lushootseed, called stuləgʷabšucid . In modern times, usage of

3185-582: The Sauk and White Rivers was used for travel across the Cascades . Last Glacial Maximum Based on changes in position of ice sheet margins dated via terrestrial cosmogenic nuclides and radiocarbon dating , growth of ice sheets in the southern hemisphere commenced 33,000 years ago and maximum coverage has been estimated to have occurred sometime between 26,500 years ago and 20,000 years ago. After this, deglaciation caused an abrupt rise in sea level. Decline of

3276-619: The Snohomish, Skykomish, and Sauk, to hunt. The Stillaguamish were famed for their skills in hunting mountain goat up on Three Fingers Mountain ( Lushootseed : gʷistalb ) and Whitehorse Mountain ( Lushootseed : čubaliali ), and commonly invited other tribes to hunt with them in return for hunting privileges elsewhere. The Stillaguamish domesticated the Salish Wool Dog , shaving them for their wool. They were kept separate from other animals in special areas, and highly cared for so as to maintain their coat. Both mountain goat wool and dog wool

3367-501: The Stillaguamish River. Some of those who moved to Tulalip were prevented from settling there, in part due to rampant disease at Tulalip, as well as a lack of land for all the people there, and eventually returned to their homelands. In 1881, only 3 Stillaguamish had remained at Tulalip, whose descendants make up the Stillaguamish community of Tulalip. During the Puget Sound War , temporary reservations were created to further pacify

3458-478: The Stillaguamish extends along the drainage of the Stillaguamish River, including the North and South forks, and the main course. The Stillaguamish also utilized the coastline of Skagit Bay and Camano Island, along with members from other non-Stillaguamish villages. Traditionally, there was limited private property ownership, and territorial rights were dominated by the idea of land use, extending to individuals based on

3549-486: The Stillaguamish have lived along the Stillaguamish River, fishing in it and its tributaries and hunting the surrounding country. The Stillaguamish were historically closely tied with neighboring peoples, such as the Snohomish , Sauk , and Skagit . Some Stillaguamish people were allied with peoples as far south as the Duwamish or even over the mountains from the plateau peoples. Warfare was uncommon, and generally defensive, as

3640-468: The Stillaguamish proper. After the first Smallpox epidemic in the 18th century, the Quadsack population was decimated while the upriver Stillaguamish were slightly less affected, and thus, over the coming century, effectively became part of the Stillaguamish proper. Anthropologist Sally Snyder, expert witness for the Stillaguamish in their case before the Indian Claims Commission, testified that

3731-420: The Stillaguamish were not migratory; they had permanent villages and structures which sometimes hundreds of people would live in. A village was made up of several winter longhouses, seasonal cattail mat houses, and various structures such as drying racks or fire pits. Longhouses were communally occupied by large groups of extended families. Each village along the Stillaguamish River had fish traps of some sort in

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3822-667: The Territorial Governor at the time. It was Stevens' policy to lump together as many tribes as possible, so as to sign as few treaties as possible. Despite being promised a reservation by then- Indian Agent Michael Simmons , no reservation was originally established in their homeland. Instead, the Stillaguamish were instructed to move to the Tulalip Reservation. While some moved to the Tulalip Reservation , many others resisted moving and stayed in their homelands along

3913-555: The West Antarctica ice sheet occurred between 14,000 and 15,000 years ago, consistent with evidence for another abrupt rise in the sea level about 14,500 years ago. Glacier fluctuations around the Strait of Magellan suggest the peak in glacial surface area was constrained to between 25,200 and 23,100 years ago. There are no agreed dates for the beginning and end of the LGM, and researchers select dates depending on their criteria and

4004-416: The atmosphere . The massive sheets of ice locked away water, lowering the sea level, exposing continental shelves , joining land masses together, and creating extensive coastal plains . The ice sheets also changed the atmospheric circulation, causing the northern Pacific and Atlantic oceans to cool and produce more clouds, which amplified the global cooling as the clouds reflected even more sunlight. During

4095-884: The best known being Lake Bonneville in Utah . This also occurred in Afghanistan and Iran , where a major lake formed in the Dasht-e Kavir . In Australia , shifting sand dunes covered half the continent, while the Chaco and Pampas in South America became similarly dry. Present-day subtropical regions also lost most of their forest cover, notably in eastern Australia, the Atlantic Forest of Brazil , and southern China , where open woodland became dominant due to much drier conditions. In northern China – unglaciated despite its cold climate –

4186-416: The center, and there were sleeping and storage platforms were built into the walls. Multiple families, generally part of the same extended family, would live together in different sections of the house. Each family in a house owned the roof planks which covered their section. Winter longhouses were built by professional carpenters, who masterfully crafted the planks with specialized tools. 40-50 men could build

4277-549: The coast of Senegal, shows a major southward expansion of the Sahara. The Persian Gulf averages about 35 metres in depth and the seabed between Abu Dhabi and Qatar is even shallower, being mostly less than 15 metres deep. For thousands of years the Ur-Shatt (a confluence of the Tigris - Euphrates Rivers ) provided fresh water to the Gulf, as it flowed through the Strait of Hormuz into

4368-693: The continents: the Indonesian islands as far east as Borneo and Bali were connected to the Asian continent in a landmass called Sundaland . Palawan was also part of Sundaland, while the rest of the Philippine Islands formed one large island separated from the continent only by the Sibutu Passage and the Mindoro Strait . The environment along the coast of South China was not very different from that of

4459-524: The currents. Canoes were poled upriver and would ride the current downriver. The North Fork, having many settlements up and down the whole river and always being full of canoes, was called a sort of highway between Skagit Bay and the Sauk River by early mountaineer Nels Bruseth . When traveling overland , canoes would be picked up and carried. There were several commonly used portages at Barlow Pass , Granite Falls , and near Darrington . Indian Pass between

4550-605: The data set consulted. Jennifer French, an archeologist specialising in the European Palaeolithic, dates its onset at 27,500 years ago, with ice sheets at their maximum by around 26,000 years ago and deglaciation commencing between 20,000 and 19,000 years ago. The LGM is referred to in Britain as the Dimlington Stadial , dated to between 31,000 and 16,000 years ago. The average global temperature about 21,000 years ago

4641-620: The east and west extremities of the Sundaland shelf. Only in Central America and the Chocó region of Colombia did tropical rainforests remain substantially intact – probably due to the extraordinarily heavy rainfall of these regions. Most of the world's deserts expanded. Exceptions were in what is the present-day Western United States , where changes in the jet stream brought heavy rain to areas that are now desert and large pluvial lakes formed,

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4732-539: The eastern coast of Chiloé Island (41.5–43° S). By that time the glaciation at the latitude of Chiloé was of ice sheet type contrasting to the valley glaciation found further north in Chile. Despite glacier advances much of the area west of Llanquihue Lake was still ice-free during the Last Glacial Maximum. During the coldest period of the Last Glacial Maximum vegetation at this location was dominated by Alpine herbs in wide open surfaces. The global warming that followed caused

4823-478: The end of the last glacial maximum , settling what is now the Stillaguamish River valley after the ice melted. For thousands of years, the Stillaguamish have lived along the Stillaguamish River. The modern Stillaguamish nation descends from the aboriginal Stillaguamish peoples who signed the Treaty of Point Elliot in 1855 as the Stoluck-wa-mish River Tribe. Although they were promised a reservation in

4914-445: The farther one traveled from a village, the less defined the boundaries became. Rural hunting and gathering areas were not tightly controlled and open to most, and many different groups would socialize and intermingle in those areas. Territory sharing between tribes was common and reciprocal, and Stillaguamish people who shared their land with their neighbors would be sure to use their neighbors' land. Like other Coast Salish cultures,

5005-466: The help of Washington Department of Fish & Wildlife. As part of this effort, the Stillaguamish Tribe has a hatchery which releases Chinook and coho salmon , running educational activities about salmon. In 2014, the Stillaguamish Tribe was granted a reservation specifically for the Stillaguamish. The 64-acre reservation was established near the Stillaguamish River, downriver from the former village at sq̓ʷuʔalqʷuʔ . The traditional territory of

5096-695: The ice sheet down to as far south as present-day Szeged in Southern Hungary. Ice covered the whole of Iceland . In addition, ice covered Ireland along with roughly the northern half of the British Isles with the southern boundary of the ice sheet running approximately from the south of Wales to the north east of England, and then across the now submerged land of Doggerland to Denmark . Central Europe had isolated pockets of relative warmth corresponding to hydrothermally active areas, which served as refugia for taxa not adapted to extremely cold climates. In

5187-421: The ice sheets except at high elevations. Glaciers forced the early human populations who had originally migrated from northeast Siberia into refugia , reshaping their genetic variation by mutation and drift . This phenomenon established the older haplogroups found among Native Americans , and later migrations are responsible for northern North American haplogroups. In southeastern North America, between

5278-559: The lack of food and water, and growing sickness on the Holmes Harbor reservation, the Stillaguamish had returned to their homelands by July, refusing to return to a reservation until the government negotiated a better deal. The Stillaguamish continued their traditional lifestyle for at least 15 years after they refused to leave to a reservation, until the 1870s, when settlers began encroaching. The Stillaguamish Tribe of Washington ratified its constitution on January 31, 1953, establishing

5369-536: The language has decreased to the point where there are no longer native speakers, and it is generally used in ceremonies. Despite this, there are still many second-language speakers and the Stillaguamish Tribe is engaging in revitalizing the language. The Stillaguamish Tribe has a YouTube channel where they post language-learning material. The Stillaguamish traditionally had a class society with three classes: upper class ( siʔiʔab ), commoners, and slaves ( stətudəq ). The vast majority of people were upper class, with

5460-554: The location of their village and usual and accustomed hunting and gathering areas. Territorial rights also differed between the seasons. During the winter months, the exclusive rights to fishing stations along a river would be held by the local village. During the summer, the rights would be extended to those who were not from the village, but were tied in kinship to members of the village. Land rights were also granted to those who were not tied in kinship but had express permission to use hunting and gathering sites. These requests were often

5551-605: The most prolific prairies used by the Stillaguamish was at what is now Kent Prairie ( Lushootseed : xʷbaqʷab ), in Arlington . It was a plentiful source of many crops, such as camas , as well as various berries, grasses, and weeds and the only prairie within the core territory of the Stillaguamish. The Stillaguamish who were allied with the Sauk would also travel to Sauk Prairie to gather roots there. The Stillaguamish also gathered berries with their Snohomish allies at Kellogg Marsh, in what

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5642-483: The nearby river, which were owned privately by a family. Traditionally, Stillaguamish villages were autonomous, loosely bound together in culture, language, kinship, and geography. During times of crisis, war, or simply for large social activities, closely allied villages might band together, sometimes under the leadership of one or several powerful figures. However, this was only temporary and villages remained independent. According to anthropologist Colin Tweddell, this

5733-412: The north, in the dry Andes of Central and the Last Glacial Maximum is associated with increased humidity and the verified advance of at least some mountain glaciers. Montane glaciers in the northern Andes reached their peak extent approximately 27,000 years ago. In northwestern Argentina, pollen deposits record the altitudinal descent of the treeline during the LGM. Amazonia was much drier than in

5824-428: The past. During the Last Glacial Maximum, much of the world was cold, dry, and inhospitable, with frequent storms and a dust-laden atmosphere. The dustiness of the atmosphere is a prominent feature in ice cores; dust levels were as much as 20 to 25 times greater than they are in the present. This was probably due to a number of factors: reduced vegetation, stronger global winds, and less precipitation to clear dust from

5915-654: The persistence of rainforests in eastern Australia at this time. Rivers maintained their sinuous form in southeastern Australia and there was increased aeolian deposition of sediment in compared to today. The Flinders Ranges likewise experienced humid conditions. In southwestern Western Australia, forests disappeared during the LGM. Between Sahul and Sundaland – a peninsula of South East Asia that comprised present-day Malaysia and western and northern Indonesia – there remained an archipelago of islands known as Wallacea . The water gaps between these islands, Sahul and Sundaland were considerably narrower and fewer in number than in

6006-907: The present day, featuring moist subtropical evergreen forests, despite sea levels in the South China Sea being about 100 metres lower than the present day. The Australian mainland, New Guinea , Tasmania and many smaller islands comprised a single land mass. This continent is now referred to sometimes as Sahul . In the Bonaparte Gulf of northwestern Australia, sea levels were about 125 metres lower than present. Interior Australia saw widespread aridity, evidenced by extensive dune activity and falling lake levels. Eastern Australia experienced two nadirs in temperature. Lacustrine sediments from North Stradbroke Island in coastal Queensland indicated humid conditions. Data from Little Llangothlin Lagoon likewise indicate

6097-507: The present day. The two main islands of New Zealand, along with associated smaller islands, were joined as one landmass. Virtually all of the Southern Alps were under permanent ice cover, with alpine glaciers extending from them into much of the surrounding high country . Northern Europe was largely covered by ice, with the southern boundary of the ice sheets passing through Germany and Poland. This ice extended northward to cover Svalbard and Franz Josef Land and northeastward to occupy

6188-498: The present, with flora diminished to almost the same degree as in glaciated areas of Europe and North America. Even in less affected regions, rainforest cover was greatly diminished, especially in West Africa where a few refugia were surrounded by tropical grasslands . The Amazon rainforest was split into two large blocks by extensive savanna , and the tropical rainforests of Southeast Asia probably were similarly affected, with deciduous forests expanding in their place except on

6279-485: The present. δ D values from plant waxes from the LGM are significantly more enriched than those in the present and those dating back to MIS 3, evidencing this increased aridity. Eastern Brazil was also affected; the site of Guanambi in Bahia was much drier than today. AMOC was weaker and more shallow during the LGM. Sea surface temperatures in the western subtropical gyre of the North Atlantic were around 5 °C colder compared to today. Intermediate depth waters of

6370-502: The region for thousands of years. Although the first humans could have arrived in the Pacific Northwest as early as 30,000 years ago, the first permanent human habitation of western Washington began 12,000 to 13,000 years ago after the last glacial maximum ended and the Vashon Glacier retreated. Archaeological sites dating back to the Olcott Phase (~9000 YBP ) attributed to Stillaguamish Paleo-Indian ancestors have been discovered in Arlington and Granite Falls. For thousands of years,

6461-564: The river, as well as for people visiting from other tribes. The village at dxʷtux̌ʷub had many small cabins which would be utilized by families visiting the lower Stillaguamish River. Other locations, such as near what is now Oso , were general areas which anyone could use. The campgrounds at Oso were used as a launching spot for expeditions into the mountains and forests for hunting and berry picking. There were many of these such places between Pilchuck Creek and sq̓ʷuʔalqʷuʔ . On sx̌ədəlwaʔs , known in English as Mount Higgins , there

6552-557: The shutting down of the Oyashio Current and the presence of large east–west mountain ranges were secondary factors that prevented the development of continental glaciation in Asia . All over the world, climates at the Last Glacial Maximum were cooler and almost everywhere drier. In extreme cases, such as South Australia and the Sahel , rainfall could have been diminished by up to 90% compared to

6643-581: The southern Appalachian Mountains and the Atlantic Ocean, there was an enclave of unusually warm climate. In the Southern Hemisphere, the Patagonian Ice Sheet covered the whole southern third of Chile and adjacent areas of Argentina. On the western side of the Andes the ice sheet reached sea level as far north as in the 41 degrees south at Chacao Channel . The western coast of Patagonia

6734-448: The summer, temporary houses made of cattail mats or small, temporary longhouses were erected, while during the winter, the Stillaguamish lived in great cedar longhouses. The winter lodgings of the Stillaguamish were large cedar plank longhouses, furnished from long cedar boards and rope made from cedar bark, with the interior walls covered with large woven cattail mats. On the inside, longhouses had large fire pits for heating and cooking in

6825-555: The title Stillaguamish . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Stillaguamish&oldid=574664869 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Stillaguamish people The Stillaguamish people ( still-uh-GWAH-mish ; Lushootseed : stuləgʷabš ) are

6916-546: The treaty, they were not given one, so while some Stillaguamish moved to Tulalip , the majority of Stillaguamish remained in their traditional territory. In 1976, the Stillaguamish Tribe of Indians was granted federal recognition, with a reservation being created in 2014. Today, most Stillaguamish people are enrolled in the Stillaguamish Tribe, while others are enrolled in the Tulalip Tribes . The name "Stillaguamish"

7007-472: The treaty, they, along with one-third of the other tribes, were not included as signatories. The Stillaguamish were not included as signatories on the treaty because they were purposely placed as subjects of the Snoqualmie and their leader Patkanim . Anthropologist Barbara Lane concluded that, during the hastily conducted treaty negotiations, the Stillaguamish were likely completely overlooked by Issaac Stevens ,

7098-403: The village until the colonial period, when extended villages and modern tribes arose as powerful leaders consolidated power. One would identify primarily with the village they were from, and beyond that, their family was most important. Both in ancient and modern times, cedar is one of the most important resources of the Stillaguamish. The bark, wood, and roots of cedar can all be used. Cedar wood

7189-554: The volcano. Glacial moraines on the volcano formed about 70,000 years ago and from about 40,000 to 13,000 years ago. If glacial deposits were formed on Mauna Loa , they have long since been buried by younger lava flows. Low sea surface temperature (SST) and sea surface salinity (SSS) in the East China Sea during the LGM suggests the Kuroshio Current was reduced in strength relative to the present. Abyssal Pacific overturning

7280-607: Was 15 °C (59 °F) for the 2013–2017 period. As of 2012 about 3.1% of Earth's surface and 10.7% of the land area is covered in year-round ice. Carbon sequestration in the highly stratified and productive Southern Ocean was essential in producing the LGM. The formation of an ice sheet or ice cap requires both prolonged cold and precipitation ( snow ). Hence, despite having temperatures similar to those of glaciated areas in North America and Europe , East Asia remained unglaciated except at higher elevations. This difference

7371-408: Was a Snohomish village During the summer, Stillaguamish people from villages along the whole river would traditionally use certain areas as base camps for summer activities like hunting and fishing. Some of these locations were built around villages, while others were purely seasonal campgrounds. The villages at dxʷtux̌ʷub and what is now Hazel had campgrounds for people visiting from all along

7462-608: Was a pocket of relative warmth. Following a preceding period of relative retreat from 52,000 to 40,000 years ago, the Laurentide Ice Sheet grew rapidly at the onset of the LGM until it covered essentially all of Canada east of the Rocky Mountains and extended roughly to the Missouri and Ohio Rivers , and eastward to Manhattan , reaching a total maximum volume of around 26.5 to 37 million cubic kilometres. At its peak,

7553-476: Was about 6 °C (11 °F) colder than today. According to the United States Geological Survey (USGS), permanent summer ice covered about 8% of Earth's surface and 25% of the land area during the last glacial maximum. The USGS also states that sea level was about 125 meters (410 ft) lower than in present times (2012). When comparing to the present, the average global temperature

7644-550: Was because the ice sheets in Europe produced extensive anticyclones above them. These anticyclones generated air masses that were so dry on reaching Siberia and Manchuria that precipitation sufficient for the formation of glaciers could never occur (except in Kamchatka where these westerly winds lifted moisture from the Sea of Japan ). The relative warmth of the Pacific Ocean due to

7735-481: Was largely glaciated, but some authors have pointed out the possible existence of ice-free refugia for some plant species. On the eastern side of the Andes, glacier lobes occupied the depressions of Seno Skyring , Seno Otway , Inútil Bay , and Beagle Channel . On the Straits of Magellan, ice reached as far as Segunda Angostura . During the LGM, valley glaciers in the southern Andes (38–43° S) merged and descended from

7826-407: Was possibly the most important of these sites. In the alpine meadows there was a large longhouse used seasonally, as well as many drying racks and a large fireplace. People from all over the Stillaguamish River valley would come to this camp in great numbers to hunt bear, deer, elk, and mountain goat, as well as gather many types of berries. qʷacaʔkʷbixʷ , often anglicized as Quadsak or Quadsack,

7917-771: Was seasonally uniform. On the island of Mauritius in the Mascarenhas Archipelago , open wet forest vegetation dominated, contrasting with the dominantly closed-stratified-tall-forest state of Holocene Mauritian forests. There were ice sheets in modern Tibet (although scientists continue to debate the extent to which the Tibetan Plateau was covered with ice) as well as in Baltistan and Ladakh . In Southeast Asia , many smaller mountain glaciers formed, and permafrost covered Asia as far south as Beijing . Because of lowered sea levels, many of today's islands were joined to

8008-556: Was similar in spatial extent. The outflow of North Pacific Intermediate Water through the Tasman Sea was stronger during the LGM. In the Great Barrier Reef along the coast of Queensland , reef development shifted seaward due to the precipitous drop in sea levels, reaching a maximum distance from the present coastline as sea levels approached their lowest levels around 20,700-20,500 years ago. Microbial carbonate deposition in

8099-501: Was the dominant influence on southern Greenland's climate. Illorsuit Island was exclusively covered by cold-based glaciers. Eastern Beringia was extremely cold and dry. July air temperatures in northern Alaska and Yukon were about 2-3 °C lower compared to today. Equilibrium line altitudes in Alaska suggest summer temperatures were 2-5 °C compared to preindustrial. Sediment core analysis from Lone Spruce Pond in southwestern Alaska show it

8190-416: Was used for weaving blankets and clothing, both of which were highly valuable in trading. The Stillaguamish maintain a tradition of gathering plants in the forests, prairies, and alpine meadows in their territory. Traditionally, prairies were maintained and plants growing there were semi-domesticated. Slash-and-burn techniques were used to encourage new growth of plants and facilitate animal species. One of

8281-514: Was weaker during the LGM than in the present day, although it was temporarily stronger during some intervals of ice sheet retreat. The El Niño–Southern Oscillation (ENSO) was strong during the LGM. Evidence suggests that the Peruvian Oxygen Minimum Zone in the eastern Pacific was weaker than it is in the present day, likely as a result of increased oxygen concentrations in seawater permitted by cooler ocean water temperatures, though it

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