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Plant succession is the gradual predictable change in species composition of an area. It starts with pioneer community which leads to stable climax community which results in a ........... condition.

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Important Questions on Ecosystems and Energy Flow

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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services

During ecological succession

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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services

Assertion (A): A primary succession is more common than secondary succession.

Reason (R): Biogeochemical cycling is absent in secondary succession.

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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Choose the right sequence of hydrarch succession from the following:
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Define ecological succession.
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services

Match the following lists:

  List-I   List-II
(A) Rooted hydrophyte with floating leaves (I) Limnophila
(B) Submerged suspended hydrophyte (II) Vallisneria
(C) Free floating hydrophyte (III) Utricularia
(D) Amphibious plant (IV) Victoria regia
    (V) Salvinia

The correct match is:

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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
What is ecological succession? Describe primary and secondary succession.
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services

Match the following?

Column I Column II
(a) Predictable change in species composition (i) Equilibrium
(b) Climax community (ii) Seral stages
(c)  Entire sequence community (iii) Ecological succession
(d) Transitional community (iv) Sere
    (v)  Succession

 

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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Lichens and Mosses are the stages of which type of succession?
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
A violent volcanic eruption wiped out most of the life forms in an island. Over different forms of simple organisms colonised this region, followed by the emergence of other organisms such as shrubs, woody plants, invertebrates and mammals. This ecological process is referred to as
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Ecological succession is
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Secondary succession takes place on/in:
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
The organisms which invade a bare area to initiate an ecological succession are known as
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
What is Ecological succession? How Hydrarch succession is different from Xerarch succession?
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
What is the difference between hydrarch succession and xerarch succession.
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Explain the different stages of biotic succession on bare rock.
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Vertical distribution of different species occupying different levels in a biotic community is known as:
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Define ecological succession. Describe the general process of plant succession with example.
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
In hydroseric succession, which stage comes just before sedge meadow stage?
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
Choose the incorrect statements.
A) Pollinators play significant role in the production of food crops.
B) One of the threats to pollinators is habitat destruction by land use.
C) The climax community remain stable as long as environment is changing with adoptions.
D) Secondary succession will be a slow process compared to the primary succession.
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Biology>Ecology and Environment>Ecosystems and Energy Flow>Ecological Succession and Services
During ecological succession: