6-2 Biomes PowerPoint
... • Found at very high latitudes in the Northern Hemisphere • Harsh winds, nutrient-poor soil, and freezing temperatures limit plant growth; no tall trees; mosses & lichens common • Characterized by permafrost (underground soil that is frozen year-round) • Birds and caribou migrate to the tundra durin ...
... • Found at very high latitudes in the Northern Hemisphere • Harsh winds, nutrient-poor soil, and freezing temperatures limit plant growth; no tall trees; mosses & lichens common • Characterized by permafrost (underground soil that is frozen year-round) • Birds and caribou migrate to the tundra durin ...
Trophic biology of antarctic shallow
... strategies in antarctic echinoderms. Perhaps the most commonly considered physical factor of the antarctic marine environment is sea water temperature, which varies seasonally only from -1.5 to -2.0 "C in shallow antarctic waters, while attaining slightly higher temperatures along the Antarctic Peni ...
... strategies in antarctic echinoderms. Perhaps the most commonly considered physical factor of the antarctic marine environment is sea water temperature, which varies seasonally only from -1.5 to -2.0 "C in shallow antarctic waters, while attaining slightly higher temperatures along the Antarctic Peni ...
Top predators in the Barents Sea, dependent on capelin?
... Capelin biomass, age 1+, acoustic survey ...
... Capelin biomass, age 1+, acoustic survey ...
Biomes Section 1
... large trees support communities dominated by small trees, shrubs, and grasses. • In biomes where rainfall is not frequent, the vegetation is mostly cactuses and desert shrubs. In extreme cases, lack of rainfall results in no plants, no matter what the temperature is. • The higher the temperature and ...
... large trees support communities dominated by small trees, shrubs, and grasses. • In biomes where rainfall is not frequent, the vegetation is mostly cactuses and desert shrubs. In extreme cases, lack of rainfall results in no plants, no matter what the temperature is. • The higher the temperature and ...
3D geodynamics of Arctic region and model of Amerasia Basin
... flows and elastic-plastic lithosphere deformations. During Tithonian-Aptian time in the Arctic region there existed a subduction zone characterized by a particular bend and consisting of two branches South Anyui and Pacific. Stable subduction formed an upper-mantle convective cell with a downwelling ...
... flows and elastic-plastic lithosphere deformations. During Tithonian-Aptian time in the Arctic region there existed a subduction zone characterized by a particular bend and consisting of two branches South Anyui and Pacific. Stable subduction formed an upper-mantle convective cell with a downwelling ...
Taiga - s3.amazonaws.com
... • The caribou is the only deer in which both sexes have antlers, although those of the female are smaller.The antlers are unique in that the lowest, forward-pointing tine is itself branched. • Females are gregarious and gather in herds with their young, but adult males are often solitary. In autumn, ...
... • The caribou is the only deer in which both sexes have antlers, although those of the female are smaller.The antlers are unique in that the lowest, forward-pointing tine is itself branched. • Females are gregarious and gather in herds with their young, but adult males are often solitary. In autumn, ...
Changes in composition and abundance of functional groups of
... Soil N processes in the High Arctic: responses to a long-term multi-level warming and added summer ...
... Soil N processes in the High Arctic: responses to a long-term multi-level warming and added summer ...
Vegetation in the Australian Alps
... Communities are described by the most common life form of the plants in that community; either trees (woody, one main stem, tall), shrubs (woody, multiple stems, short) or herbs (non-woody, small and short-lived). The structure of the various vegetation communities is generally the same throughout t ...
... Communities are described by the most common life form of the plants in that community; either trees (woody, one main stem, tall), shrubs (woody, multiple stems, short) or herbs (non-woody, small and short-lived). The structure of the various vegetation communities is generally the same throughout t ...
Winter Ecology Hike
... water vapor creates a bottom or in-between layer that is granular and resembles sugar. This type of snow allows small animals like mice, voles and shrews to readily tunnel through it. Because it contains a lot of air it also is good insulating snow for grouse to hunker down in on a cold night. Anima ...
... water vapor creates a bottom or in-between layer that is granular and resembles sugar. This type of snow allows small animals like mice, voles and shrews to readily tunnel through it. Because it contains a lot of air it also is good insulating snow for grouse to hunker down in on a cold night. Anima ...
Chp 2 - StraightUpNorth.ca
... wind-sculptured, and less than one metre in height (Stonehouse, 1989). Lichens and mosses are prominent growth forms, but tundra communities also include shrubs, sedges, grasses, and forbs (flowering herbs other than grasses). Community composition varies in relation to soil, aspect in relation to s ...
... wind-sculptured, and less than one metre in height (Stonehouse, 1989). Lichens and mosses are prominent growth forms, but tundra communities also include shrubs, sedges, grasses, and forbs (flowering herbs other than grasses). Community composition varies in relation to soil, aspect in relation to s ...
fram forum 2017
... animals. Environmental managers and others can’t say much about effects without understanding the biology.” “I would actually like to work more with climate issues, preferably with a circumpolar perspective. And ocean acidification. But there’s still a lot to be done regarding my friend the polar co ...
... animals. Environmental managers and others can’t say much about effects without understanding the biology.” “I would actually like to work more with climate issues, preferably with a circumpolar perspective. And ocean acidification. But there’s still a lot to be done regarding my friend the polar co ...
Ecological Influences of Canis lupus arctos and Canis lupus of
... Arctic wolves live in the regions above 67* latitude. This environment/land is covered in ice and snow all year round except for a couple months in mid summer (MarquardPetersen, 1998). This “summer” period is very influential on ungulate prey densities, which in turn may affect wolf populations. Arc ...
... Arctic wolves live in the regions above 67* latitude. This environment/land is covered in ice and snow all year round except for a couple months in mid summer (MarquardPetersen, 1998). This “summer” period is very influential on ungulate prey densities, which in turn may affect wolf populations. Arc ...
Biblio RTF Export
... Hobbie, JE, AE Hershey, PW Lienesch, ME McDonald, GW Kling, and WJ O'Brien. 2001. ?Studies Of Fresh Waters On The North Slope?. In , 123-128. Fairbanks, AK: University of Alaska Press. Vincent, WF, and JE Hobbie. 2000. ?Ecology Of Arctic Lakes And Rivers?. In The Arctic: Environment, People, Policie ...
... Hobbie, JE, AE Hershey, PW Lienesch, ME McDonald, GW Kling, and WJ O'Brien. 2001. ?Studies Of Fresh Waters On The North Slope?. In , 123-128. Fairbanks, AK: University of Alaska Press. Vincent, WF, and JE Hobbie. 2000. ?Ecology Of Arctic Lakes And Rivers?. In The Arctic: Environment, People, Policie ...
Lemmings EN
... know that nesting success of Snowy Owls and survival of arctic fox pups are both related to lemming abundance. Both owls and foxes produce very few, if any, surviving young except in "lemming years." The generation of foxes born in a "lemming year" sustains the fox population, even though its number ...
... know that nesting success of Snowy Owls and survival of arctic fox pups are both related to lemming abundance. Both owls and foxes produce very few, if any, surviving young except in "lemming years." The generation of foxes born in a "lemming year" sustains the fox population, even though its number ...
Frozen desert alive Flores, Hauke
... 2002). The almost exclusive dependence of a major prey species of birds and mammals on Antarctic krill can be considered as an example of a krill‐dominated food chain, although the trophic relevance of E. superba for the warm‐blooded top predators is indirect in this case. ...
... 2002). The almost exclusive dependence of a major prey species of birds and mammals on Antarctic krill can be considered as an example of a krill‐dominated food chain, although the trophic relevance of E. superba for the warm‐blooded top predators is indirect in this case. ...
new geophysical data about the inner structure of drake passage crust
... Within the continental slope and the shelf of Antarctica an anomaly with two maximums of 400 nT intensity was distinguished on the side of Drake Passage. The source of this anomaly is a magnetoactive body with magnetization of +2,7 A·m־¹, which corresponds with the mean value of the positively mag ...
... Within the continental slope and the shelf of Antarctica an anomaly with two maximums of 400 nT intensity was distinguished on the side of Drake Passage. The source of this anomaly is a magnetoactive body with magnetization of +2,7 A·m־¹, which corresponds with the mean value of the positively mag ...
Rapid, landscape scale responses in riparian tundra
... and mosses (all combined). While the two river catchments have similar species pools in terms of occurrence of plants, they differ in abundance composition. A more detailed description of the species composition in the herbaceous vegetation can be found in Ravolainen (2009). On Varanger Peninsula, l ...
... and mosses (all combined). While the two river catchments have similar species pools in terms of occurrence of plants, they differ in abundance composition. A more detailed description of the species composition in the herbaceous vegetation can be found in Ravolainen (2009). On Varanger Peninsula, l ...
Biomes, Ecosystems, and Communities Worksheets
... • The mesopelagic zone is between 200 and 1,000 meters below sea level. Some sunlight penetrates to this depth but not enough for photosynthesis. Organisms in this zone consume food drifting down from the epipelagic zone, or they prey upon other organisms in their own zone. Some organisms are detriv ...
... • The mesopelagic zone is between 200 and 1,000 meters below sea level. Some sunlight penetrates to this depth but not enough for photosynthesis. Organisms in this zone consume food drifting down from the epipelagic zone, or they prey upon other organisms in their own zone. Some organisms are detriv ...
Téléchargement
... Ocean's pelagic/meso-pelagic community. In this context BAS is collaborating with the Zoology Department at the University of Aberdeen, through a Natural Environment Research Council (NERC) CASE postgraduate award, to explore the use of serological methods to analyse the gut contents of Antarctic ce ...
... Ocean's pelagic/meso-pelagic community. In this context BAS is collaborating with the Zoology Department at the University of Aberdeen, through a Natural Environment Research Council (NERC) CASE postgraduate award, to explore the use of serological methods to analyse the gut contents of Antarctic ce ...
Age and Sex Composition of Seals Killed by Polar Bears in the
... comprised 9.8% of the kills, but 33% of the biomass. Adults comprised 43.6% (150/344) of the ringed seals killed, while their pups comprised 38.4% (132/344). Juvenile ringed seals were killed at the lowest proportion, comprising 18.0% (62/344) of the ringed seal kills. The proportion of ringed seal ...
... comprised 9.8% of the kills, but 33% of the biomass. Adults comprised 43.6% (150/344) of the ringed seals killed, while their pups comprised 38.4% (132/344). Juvenile ringed seals were killed at the lowest proportion, comprising 18.0% (62/344) of the ringed seal kills. The proportion of ringed seal ...
Major Ecosystems of the World
... • Growing season is short but the days are long • Little precipitation, most of it during the summer months (10-25 cm per year) • Tundra soils are usually nutrient-poor and have little organic litter (dead leaves, animal droppings, remains of organisms) • Although the soil melts at the surface durin ...
... • Growing season is short but the days are long • Little precipitation, most of it during the summer months (10-25 cm per year) • Tundra soils are usually nutrient-poor and have little organic litter (dead leaves, animal droppings, remains of organisms) • Although the soil melts at the surface durin ...
AGE 301: PHYSICAL GEOGRAPHY
... In this lesson, the characteristics and global distribution of three fundamental climatic elements, namely temperature, evaporation and precipitation will be discussed. In Physical Geography II, climate was defined as the average conditions of the atmosphere near the earth’s surface over a period of ...
... In this lesson, the characteristics and global distribution of three fundamental climatic elements, namely temperature, evaporation and precipitation will be discussed. In Physical Geography II, climate was defined as the average conditions of the atmosphere near the earth’s surface over a period of ...
Antarctica Plate Motion - Indian National Science Academy
... The Antarctica, which is the fifth largest of the seven continents on Earth, was the part of the supercontinent Gondwana more than 170 million years ago. Over time Gondwana broke apart and Antarctica was formed around 35 million years ago. The area of Antarctic plate is 61 million km2, which is almo ...
... The Antarctica, which is the fifth largest of the seven continents on Earth, was the part of the supercontinent Gondwana more than 170 million years ago. Over time Gondwana broke apart and Antarctica was formed around 35 million years ago. The area of Antarctic plate is 61 million km2, which is almo ...
Arctic fox conservation ecology - Norsk institutt for naturforskning
... project in the area to document reproduction. During this period we have maintained radio-collars on two females that have been responsible for most of the known reproduction. Beyond these two individuals we have little data on the size of the population, although we do receive observations of arcti ...
... project in the area to document reproduction. During this period we have maintained radio-collars on two females that have been responsible for most of the known reproduction. Beyond these two individuals we have little data on the size of the population, although we do receive observations of arcti ...
Investigating Krill Behaviors FINAL 3/4/14
... Seasonal changes in Antarctica contribute to changing light conditions. Due to the Earth's tilt and orbit around the sun, the poles receive less light and heat from the sun. In summer at the poles, the sun does not set, and in winter the sun does not rise. Organisms like krill living in Antarctica m ...
... Seasonal changes in Antarctica contribute to changing light conditions. Due to the Earth's tilt and orbit around the sun, the poles receive less light and heat from the sun. In summer at the poles, the sun does not set, and in winter the sun does not rise. Organisms like krill living in Antarctica m ...