if you lived in the Arctic Tundra region what would be difficult and what would be easy for you what would you like the most about living there?
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Life in the Tundra
Deserts, grasslands, rainforests, coral reefs, and tundra may seem quite different, but they are all examples of biomes. A definition for biome is “a living community characterized by distinctive plant and animal species and maintained under the climatic conditions of the region.” Biomes are made of many similar ecosystems (communities of organisms and the environments in which they live).
A biome is characterized by abiotic (nonliving) factors such as geography and climate and by biotic (living) factors such as plant and animal species.
Life in any biome includes producers (plants and other photosynthetic organisms) and consumers (organisms that obtain their energy from producers). These consumers may be further classified as herbivores (plant eaters), carnivores (meat eaters), or omnivores (feed on a combination of animals and plants).
In addition, all ecosystems are dependent on detritivores (decomposers) — bacteria and other microorganisms that obtain energy from breaking down organic matter.
The flow of energy from the sun through an ecosystem can be illustrated in a food chain, such as this generalized one:
Generalized food chain.
Energy is lost in the form of heat at each level of a food chain, which means that the number of individuals at each successive level decreases. For example, within a food chain there are always more producers than primary consumers, and more primary consumers than secondary consumers or tertiary consumers. Decreasing available energy and population sizes in a food chain are illustrated by an energy (or ecological) pyramid:
Image courtesy of Wikimedia.
While food chains are a useful teaching tool, their simplicity doesn’t usually capture the complex relationships within a biome or the fact that any one organism may be part of several food chains. A food web, which illustrates the overlap between multiple food chains, more accurately captures the flow of energy in an ecosystem.
A food web shows overlap between multiple food chains in an ecosystem.
Living organisms in any biome interact through a variety of relationships. Organisms compete for food, water, and other resources. Predators hunt their prey. Some organisms coexist in mutually beneficial relationships (symbiosis), while others harm organisms for their own benefit (parasitism). Still others benefit from a relationship that neither helps nor harms the other organism (commensalism).
Biomes (and their food webs) can change as a result of natural hazards or human activities. Changes in environmental conditions may limit the availability of resources (food, water, space or shelter), reducing the number of organisms that can survive in a given environment. A change at any level of a food web will impact all other organisms in that web in some way. Some species are considered keystone species because of the critical role they play in an ecosystem’s food web. Examples of keystone species include grizzly bears, sea stars, and sea otters.
TUNDRA
The tundra is a biome characterized by an extremely cold climate, little precipitation, poor nutrients, and a short growing season. Other characteristics include low biodiversity, simple plants, limited drainage, and large variations in populations.
There are two types of tundra: arctic and alpine. Arctic tundra is located in the Northern Hemisphere; alpine tundra is located at high elevations on mountains throughout the world. Tundra is also found to a limited extent in Antarctica – specifically, the Antarctic Peninsula.
ARCTIC TUNDRA
Arctic tundra is found along the northern coasts of North America, Asia, and Europe, and in parts of Greenland. It extends south to the edge of the taiga (a biome characterized by coniferous forests). The division between the forested taiga and the treeless tundra is known as the timberline or tree line.
Location of arctic tundra across the Northern Hemisphere. Image courtesy of Wikimedia.
The tundra is known for cold conditions, with an average winter temperature of -30 degrees F (-34 degrees C), and an average summer temperature ranging from 37 degrees to 54 degrees F (3 degrees to 12 degrees C). The growing season lasts from 50 to 60 days. The biome is also characterized by desertlike conditions, with an average of six to ten inches (15 to 25 cm) of yearly precipitation, including snow melt. Winds often reach speeds of 30 to 60 miles (48 to 97 km) an hour.
Another hallmark of the tundra is permafrost, a layer of permanently frozen subsoil and partially decayed organic matter. Only the top nine or ten inches of soil thaw, leading to the formation of bogs and ponds each spring.
Answer:
Life in the Tundra
- Deserts, meadows, rainforests, coral reefs, and tundra may appear to be very changed, yet they are for the most part instances of biomes. A definition for biome is "a living network described by particular plant and creature species and kept up under the climatic states of the district." Biomes are made of numerous comparative biological systems (networks of life forms and the conditions in which they live).
- A biome is portrayed by abiotic (nonliving) factors, for example, geology and atmosphere and by biotic (living) factors, for example, plant and creature species.
- Life in any biome incorporates makers (plants and other photosynthetic creatures) and purchasers (living beings that get their vitality from makers). These purchasers might be additionally delegated herbivores (plant eaters), carnivores (meat eaters), or omnivores (feed on a mix of creatures and plants).
- Furthermore, all biological systems are reliant on detritivores (decomposers) microscopic organisms and different microorganisms that acquire vitality from separating natural issue.
- The progression of vitality from the sun through an environment can be shown in an evolved way of life, for example, this summed one up: