Lichen Bright and neutral colors of crumbly material sit upon a boulder that beckons to be noticed. A small child places its hand upon the rock and notices upon withdrawal that small bits of an unknown substance come back, stuck upon the palm. Many people are unaware that this strange substance, called lichen, is actually a plant and thrives and lives upon that boulder. Lichen is a special kind of plant that has its own unique biology, has many different types and classifications, and heavily
process of aging. Bishop draws a contrast between the process of aging and the timeless relationship she has with her partner. The first stanza centers the poem in the specific observations Bishop makes in nature: The still explosions on the rocks, the lichens, grow by spreading, gray, concentric shocks. They have arranged
but lichens, described as “still explosions on the rocks.” The lichens’ growth records the passage of time, and yet “they have not changed”. Lichen is a type of fungal organism that grows very slowly and gradually. Over time, the lichen can spread and overtake the surface it grows on. A metaphor describes how the lichen “grow by” means “spreading, gray, concentric shocks” in a pattern that can be compared to an “explosion[s]”. The idea of “gray” is used here to describe the pattern of lichen growth;
Believe it or not, in the arctic region, where the average temperature of the year is about -12 celsius degree, there are more than 9,000,000 people, including 150,000 indigenous people living constantly. Even though many of them now have houses, automobile and electronics like rest of the world, the way they survive in such a rough environment is still an interesting topic to discover. A typical arctic indigenous ethnicity is Eskimo people, who is believed originated from eastern Asia and then migrated
Bioindicator Lichen (disambiguation) Bioindicator’s are different types of living organisms that responds to different types of effect in the human environment. Lichens are a special type of Bioindicator that are used for air pollution. One main type of pollution is the sulfur-oxide pollution, which they get their personal needs from the atmosphere rather than from the soil in the ground. The lichens also react to the air pollution all- year round rather than a few months at a time. Lichens are also
likely that these patches of different colors on the trees are some sort of lichen. Lichens vividly ornate the trees and can change in appearance. For example, on a more humid day subtle patches of green or bright yellow can appear on the trunk of the trees. When the air is drier, the lichens tend to appear cooler in color. (Sharnoff) Many species of lichens are unable to withstand in areas with poor air quality. When lichens grow on trees this indicates that the air is relatively clean.
we found in the upper and lower stream. The upper stream had fishes, more lichen, insects, snails and crabs. In the lower stream, we only saw snails under the rocks, comparatively less lichen and crab holes in the sand along the coast of the stream so we deduced that crabs can also be found in the lower stream. After doing some research, we have found out more about each kind of organism found in the stream. Lichen Lichen is found everywhere along the stream, especially concentrated in an end of
Migrating Birds, Mosquitoes, Black Flies, Lichen, Flowers, Arctic willow grass, bearberry, Arctic owl, Arctic fox, Arctic
The tundra artic plains completely covering most of the earth’s lands north of the coniferous forest belt. The tundra’s ecosystem is very sensitive. It doesn’t have a good ability to restore itself. Controlled by sedge, heath, willow, moss, and lichen. Plains that are pretty much alike, called alpine tundra, occur above the timberline in the high mountains of the world. Even the Antarctic area has a couple of its own arctic regions itself. The climate of the tundra is characterized by harsh winters
probably Protococcus, Ulothrix, Chaetophora, and Spirogyra. Another green dye that was used for bows and arrows came from lamb's quarter, Chenopodium album. Yellow dyes came from a variety of places including smooth sumac, Rhus glabra, roots, the lichens Parmelia borreri and Usnea barbata, and young cottonwood (Populus sargentii) leaf buds collected in early spring; this particular yellow dye was used for coloring arrow feathers and quills. An orange dye also used as a feather dye was boiled out of
Both of these plants eat away at the surface of your shingles over time. Moss and lichen also hold in moisture. This will cause premature wear to your shingles. In the winter, the moisture they hold onto can freeze and cause unnecessary frost to develop on your shingles. This can cause your shingles to become warped. There are a few
In the tundra, organisms experience all 3 of the types of symbiosis: mutualism, commensalism, and parasitism. An example of mutualism, for example, is the lichen. Lichen is made up of algae and fungus. The algae goes through photosynthesis to make food for the fungus, and the fungus retains water and minerals to protect the algae. The two organisms benefit, making it mutualistic. Another symbiotic relationship
Exploring Antarctica Map of AntarcticaAntarctica is the fifth largest of the seven continents. It is situated over the South Pole almost entirely south of latitude 66°30’ south (the Antarctic Circle). It is a very rough circular shape with the long arm of the Antarctic Peninsula stretching towards South America. There are two large indentations, the Ross and Weddell seas and their ice shelves. The nearest other land masses are South America 600 mls / 1000 km away across the roughest stretch
As elevation increases, wildlife productivity usually decreases due to lower temperatures, thinner air, and lack of moisture, but several primate species have successfully colonized high altitude habitats despite these environmental stressors (Grow et al 2013). Since mountainous regions are often inaccessible, scientists have only recently made strides to explore primate ecology in these areas and the potential applications to conservation and evolution. Many monkeys defy the dangers of hypothermia
with “Where the memory of her smile...could open locks the rain rained on?" Morrison may have been referring to the idea of slaves trying to revolt. The imagistic description of “a latch latched and lichen attached” could be referring to the overbearing hold that slavery had on its victims with “lichen attached” representing the slaves being blocked in with the slow growing epidemic of slavery that eventually took over everything they knew and had. The idea of fingernails opening a lock that’s been
since climate more or less corresponds to vegetation zones, the Tundra is located in Arctic climate areas. Temperature The Tundra suffers a very harsh climate. Because of this fact most of the area remains barren save for a few shrubs and lichens. It's winters last from 8-10 months and the summers are cool and short. Also due to the fact that much of it's territory is located within the northern pole a lot of the Tundra receives alternating 6 month periods of light and dark. This is also
functions that aid with oral health are: fighting infections, storing vitamins and minerals, and producing substances that are needed to stop bleeding. Possible exhibitions of the oral cavity from hepatitis B include lichen planus, Sjogrens syndrome, and sialadenitis. Lichen planus can form in white patches that can sometimes turn into painful sores. Sjogrens syndrome is an autoimmune disease in which the white blood cells destroy the salivary and lacrimal glands, which then leads to xerostomia
The dampened ground slowly sunk his feet through the thick, soggy mud as he scoured through the densely packed forest in hope for finding Trent. The tangling vines obstructed Arnold’s path as they clung of the lengthy branches like maggots on a desiccated piece of meat. The thick, misty air occupied his presence in a truly terrifying way that Arnold couldn’t make out anything apart from a glimpse of light that reflected of his jacket’s zip. The only obvious illumination he could make out was the
The Taiga Biome is also known as the boreal forest. The taiga biome is the largest terrestrial biome and extends across Europe, North America, and Asia. The taiga is located near the tundra biome. It has short wet summers and l0ng cold winters. The taiga get a large amount of snow during the winter and plenty rain during the summer. The taiga is found throughout the high northern areas. The taiga makes up 29% of the world’s forest’s the largest areas are located in Canada
Explaining Succession Introduction Succession is the progression of plant and animal species in an area from smaller simpler organisms to larger more complex organisms, eventually leading to a climax community. The climax community is reached when the species found in the area remain constant over time with few or no species being wiped out or starting to grow- there is an equal balance between births and deaths and gross primary productivity is the same as total respiration. The