In ecology, a niche refers to the specific role or position of an organism within its environment, including its habitat, its interactions with other species, and its unique adaptations. It encompasses the resources the organism uses, how it interacts with other organisms, and its effect on the surrounding environment.
Fundamental Niche: The full range of conditions and resources an organism can potentially use and the roles it can potentially play in the environment.
Realized Niche: The actual conditions and resources an organism uses and the roles it plays in the environment, taking into account competition and other environmental factors.
Study Guide: Understanding Niche
Here are some key points to understand about the concept of niche:
Describe what a niche is and its importance in ecology.
Explain the components of a niche and how they contribute to an organism's role in its environment.
Discuss the differences between fundamental and realized niches.
Give examples of different types of niches in various ecosystems.
Analyze how changes in a niche can impact an organism and its interactions with other species.
By understanding the concept of niche, one can gain insights into how organisms are uniquely adapted to their environments and how their interactions shape the ecosystems they inhabit.
The Living Environment: Students understand that cells are the basic unit of life, that all life as we know it has evolved through genetic transfer and natural selection to create a great diversity of organisms, and that these organisms create interdependent webs through which matter and energy flow. Students understand similarities and differences between humans and other organisms and the interconnections of these interdependent webs.
Cells: Students describe how living things are made up of one or more cells and the ways cells help organisms meet their basic needs.
Give examples of organisms that consist of a single cell and organisms that are made of a collection of cells.