write feature of tropical rainforest deciduous forest montane and thorny bushes distinguish between flora and fauna
Answers
Answer:
Heredity: It means the transmission of features/characters/traits from one generation to the next generation. Variation: The differences among the individuals of a species/population are called variations. Mendel and his work on Inheritance.
Explanation:
Natural Vegetation and Wildlife: Part 2 | Tropical Evergreen, Tropical Deciduous and Tropical Thorny Vegetation
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3 years ago
In the previous article, we understood the broad relationship between the amount of rainfall received and the vegetation type found in an area (Click here for part 1).
Moving on, let’s discuss the various natural vegetation types of India in detail:
Natural Vegetation Types of India
1. Tropical Evergreen Forests
‘Evergreen’ because there is no definite time for trees to shed their leaves, flowering and fruition. As such these forests appear green all the year round.
The common animals found in these forests are elephants, monkey, lemur and deer. The one-horned rhinoceros are found in the jungles of Assam and West Bengal. Besides these animals, plenty of birds, bats, sloth, scorpions and snails are also found in these jungles.
A. Tropical Wet Evergreen Vegetation:
Distribution: These forests are found on the western slope of the Western Ghats, upper Assam through Cachar and the Andaman and Nicobar Islands.
Climatic Conditions: They are found in warm and humid areas with an annual precipitation of over 250 cm and a short dry season. The mean annual temperature here is above 22°C.
Characteristic Features:
Tropical evergreen forests are well stratified, with layers closer to the ground covered with shrubs and creepers, followed by short structured trees, further followed by tall variety of trees.
In these forests, trees reach great heights up to 60 m or above.
Bounded by semi-evergreen forests on drier margins.
Very rich biodiversity.
Timber produced in these forests is fine-grained and durable.
Important Species found in these forests: Rosewood, Mahogony, Aini, Ebony, etc. Important species in Kerala are Mesa, White cedar, Jamun, Canes etc. Common species found in Assam forests are Gurjan, Jamun, Agar, Bamboo etc.
B. Tropical Semi-Evergreen Vegetation:
Distribution: These forests occur in areas adjoining tropical wet evergreen, and form a transition between evergreen and moist deciduous forests. These forests occur on the western coast, in Assam, on the lower slopes of the eastern Himalayas and in the Andamans in the areas where precipitation and atmospheric humidity is slightly less than that in tropical evergreen vegetation area.
Characteristic Features:
Such forests have a mixture of evergreen and moist deciduous trees. The undergrowing climbers provide an evergreen character to these forests.
The climbers are heavy, bamboos are less prevalent and epiphytes are abundant. [Epiphytes – The plants which depend on other plants for mechanical support (and not for nutrients). e.g. lichens, mosses, orchids etc.]
The forest is dominated by a variety of large trees with a tendency to gregariousness (i.e. growing in groups that are close together)