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Chapter 20: Problem 3

Describe a transition zone between two ecosystems. How wide is an ecotone? Explain.

Short Answer

Expert verified
An ecotone is a transition area between two ecosystems and is characterized by high species diversity and density. The width of an ecotone can vary greatly, as it depends on the specific characteristics of the ecosystems, their interaction, and factors like human impact and natural occurrences. An example is the change from a forest ecosystem to a grassland ecosystem.

Step by step solution

01

Understanding Ecosystems

To begin with, it's important to understand what an ecosystem is. An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
02

Defining the Concept of an Ecotone

Next, an ecotone is defined. An ecotone is a transition area between two biomes or different patches of the landscape. It is where two communities meet and integrate.
03

Characteristics of an Ecotone

Then, outline basic characteristics of ecotones. Ecotones are typically characterized by high species diversity and density compared to the adjacent ecosystems, because species from each of the adjacent communities may exist here, as well as species unique to the ecotone.
04

Width of an Ecotone

Lastly, the width of an ecotone is not fixed and can greatly vary. It depends on the specific characteristics of the ecosystems, the interaction between them, any human impact, and natural occurrences. In some instances, it might be quite sharp and quick, other times it might be gradual and span a wide area.
05

Example of an Ecotone

An example of an ecotone would help clarify. An example of a very clear ecotone is the transition from a forest to grassland ecosystem. In this case, the ecotone might appear as a gradual thinning of trees until the landscape becomes predominantly grassland.

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