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Answered 2012-03-20 19:36:37

pioneer plant stage

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What is the first step in primary succession?

Pioneer species, such as lichens and mosses grow on the surface of rocks.


Explain how lichens contribute to the process of soil formation?

it breaks up rocks into soil during primary succession


Which kind of succession occurs following a volcanic eruption?

Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient-rich soils


Which parts of the ecosystem had to be establishes before the primary succession could occur?

The parts of the ecosystem that had to be established before the primary succession shown in the transparency could occur is the lichens, rocks and soil...also that the mosses, ferns, shrubs, and grasses are parts of the primary succession.


How do lichens affect the environment?

lichens affect the enviroment by breaking down rocks in primary succsesion


Why does primary succession take longer than secondary succession?

Primary Succession begins from scratch and it forms from desolate land. Primary Succession needs time to pass starting from rocks to lichens and mosses to grasses, etc. Secondary Succession, on the other hand, is formed from a disaster or human interaction on an ecosystem that was most likely in bad shape. Secondary Succession will definetely help an ecosystem because it adds more nutrients to the soil afterwards. I hope this helps! This is just from my own knowledge.


WHY do lichens mostly grow on the top of rocks?

Because it is the part of the rock that is exposed top sunlight.


Are lichens important in the process of primary succession?

yes, The lichens and mosses help to form soil by secreating acids on the rocks they cling to, also when lichens die they create soil so that one day the soil can support grasses that can support brushes and shrubs which can support, red alders then doug firs then cedars and hemloch


Primary succession differs from secondary succession in term of what factors?

Primary and secondary succession differ in terms of previous colonization of a habitat.


What role does lichen play in primary succession?

The lichens and mosses help to form soil by secreating acids on the rocks they cling to, also when lichens die they create soil so that one day the soil can support grasses that can support brushes and shrubs which can support, red alders then doug firs then cedars and hemloch


Is an abandoned paved parking lot primary succession or secondary succession?

Parking lot is considered primary succession, because no organisms previously lived on it. Parking lots can be considered like rocks, which also undergo primary succession. Overtime soil will be blown onto the parking lot and if not maintained plants will begin to grow thus starting new life= primary succession.


Lichens and mosses erode rocks by producing?

Lichens and mosses erode rocks by producing acids. These acids lead to the deterioration of rocks, such as limestone and marble.


What plants live on rocks?

lichens


Are lichens growing on rocks competition?

no


What do lichens do?

Lichens provide food, break up rocks and provide a warning of air pollution.


How can lichens cause chemical weathering?

Nanovolumes of acids released from lichens react with rocks and minerals.


What are the first and last stage of primary succession?

The first stage is when rocks start to form and the last stage is the last stage.


What are plants that grow in the cracks of rocks?

plants which grow on rocks are called lichens.


Why is lichen important?

Lichens are an important food source. Lichens are also important in the weathering process of rocks.


Why are lichens important?

Lichens are an important part of the environment. Lichens are a main part of the food source for many animals, and also important for the weathering of rocks.


Lichens erode rocks by producing what?

Organic acids


What kinds of plants grow on rocks?

Lichens...Ivy.


What are 2 ecosystems that would go through primary succession?

New oceanic islands and new rocks formed by solidifying lava .


How do mosses and lichens help to from soil?

Lichens and mosses help to form soil by breaking down the rocks that they are attached to.


What are the charateristics of ecological succession?

The basic thing to know, is the primary succcesion occurs w/o any dirt presnt. The pioneer species, lichens and mossess, break down any rocks present to create soil. Secondary succesion occurs when there is already soil present, but the land has been cleared, like after a fire.