What is Biomes || Biomes And there Types || CSS/PCS/PMS/IAS

What is Biomes || Biomes And there Types || CSS/PCS/PMS/IAS

What is Biomes || Biomes And there Types || CSS/PCS/PMS/IAS

Definition:

Certain biological and biotic types of material spread across at least a large region of the globe, creating a common ecosystem in the region. This national large ecosystem is called biomes.

The ecologist recognizes many large ecological units called biomes, which are based on forms of growth of dominant vegetation. The the distribution of terrestrial biomes depends primarily on temperature and precipitation, but also affects soil fertility and fire. Every biom is more or less isolated from oceans, mountain ranges or desert barriers. This geographic isolation tends to limit the flow of genes between these biomes. How As a result, each biom maintains a characteristic species of living organisms.

Terrestrial Biomes:

The seven categories of Earth's major biomes ordered by distance from the equator are listed below.

1. Tropical rain / evergreen forest: 
The tropical rainforest / evergreen forest occurs near the equator of the earth, receives large amounts of rainfall during the year, the temperature is between 25oC - 29oC a year and is characterized by the growth of tall trees and green trees. General Chat Chat Lounge Animal diversity is highest in eco forests.

2. Savannas: 
Savannas (hot deserts) also lie near the equator, but experience less rain than tropical rainforests and sometimes have longer dry spells. Savannas are characterized by open meadows with scattered trees and bushes.

3. Deserts: 
Deserts (Cold Desert) are extremely dry biomes; hot deserts are hot all year round, while cold desserts are only hot in summer. Deserts are of great biological importance due to the extreme behavioral, morphological and physiological adaptations of plants and animals living there.

4. Moderate grassland:
Moderate grassland receives less rainfall than savannas, but more than deserts; the soil on moderate grassland is rich, so they are well suited for agriculture. Large pastures and digging mammals are native to moderate grasslands.

5. Moderate deciduous / deciduous forests:
Moderate deciduous / deciduous forests receive moderate rainfall that is well distributed throughout the year. The climate of temperate deciduous forests differs from tropical forests because they receive less rainfall, occur in higher and colder latitudes, and experience cold winters. Trees in the tropical forest lose their leaves and remain calm throughout the winter. It has vertical layers, including closed springs, one or two layers of tree cover, a layer of shrubs and a shrub layer. In northern Hemisphere, most of the mammals live in winter this winter, while bird fauna are exposed to warmer climates.

6. Taiga:
Taiga is the coniferous forest of the north. It is the largest terrestrial biom on earth. Taiga consists primarily of evergreen trees carrying cones that are able to survive long cold winters and low rainfall. These forests are living place to many living things(Birds and Animals). These forests are cut down very quickly, and old coniferous stands may soon disappear.

7. Tundra:
Tundra Even further north of the taiga is the tundra, which covers about 20% of the earth's surface and consists mainly of open grassland, often wet in summer, lying above the permafrost layer, whose water is permanently frozen. The Alpine tundra is located on a high mountain peak in all latitudes. The arctic tundra winter is long and cold, and summer short and mild. The growing season is very short. The tundra vegetation is mainly herbaceous plants consisting of a mixture of lichens, mosses, grasses, dwarf shrubs and trees. Migratory birds intensively use the Arctic tundra during the summer. The Arctic tundra has recently become the subject of significant minerals and oil production.

Aquatic Biomes: 

Water provinces cover over 72 percent of the earth's surface. These include standing fresh water (such as lakes), running fresh water (such as streams), as well as ocean and seas around the world. All aquatic ecosystems show gradients of light penetration, water temperature, salinity and dissolved gases. These factors differ daily and seasonally. Thus, primary productivity is different in aquatic ecosystems. Estuaries are areas where streams of fresh water or rivers merge with the ocean. Mixing water creates a unique ecosystem. You can find microflora like algae and macroflora, such as seaweeds, marsh grasses and mangrove trees (only in the tropics). Coral reefs are widespread in warm shallow waters. They can be found as barriers along the continents. In addition to corals, several species of microorganisms, invertebrates, fish, sea urchins, octopuses and sea stars also live in coral reefs. Photosynthetic activity is greatest in shallow waters and upwelling regions. Upwelling is a movement up the deep, cool ocean water that often transfers nutrients to the surface.

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