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Ecosystem Ecology: Definition & Explanation

Instructor
Sarah Friedl

Sarah has two Master's, one in Zoology and one in GIS, a Bachelor's in Biology, and has taught college level Physical Science and Biology.

Expert Contributor
Christianlly Cena

Christianlly has taught college physics and facilitated laboratory courses. He has a master's degree in Physics and is pursuing his doctorate study.

What powers life? How much energy do animals get from eating plants? What short- and long-term effects will climate change have on our environment? Asking questions such as these help ecologists better understand ecosystems and the processes within them.

Definition

Ecosystems are the natural systems that are made up of living and non-living things working together. Ecosystems come in a variety of shapes and sizes, and while they share many features, each is unique. Ecosystems do have boundaries, but determining where one ecosystem starts and another begins can often be a challenge.

Because ecosystems have so many components and contain so much important information about our natural world, a very specific field of study was developed called ecosystem ecology. While the actual study of ecosystems has been going on for much longer, the term for the study of whole, living systems was developed in 1942. A person studying ecosystems is an ecosystem ecologist.

Studying Systems

Ecosystem ecologists do study overall systems, but in order to understand the system as a whole they need to look at the individual parts and what those parts contribute. This means that ecosystem ecologists are generally interdisciplinary - being involved in many different fields of study.

Ecosystem ecologists look at relationships between organisms and their environment. For example, in an aquatic ecosystem, an ecosystem ecologist might examine the relationships between the aquatic environment and the plants and animals that call it home.

Ecosystem ecologists may ask themselves questions to help them better understand ecosystems. For example, they may ask how sunlight and nutrients affect plants, and how those plants affect the animals that eat them.

Ecosystem ecologists are also interested in the biological processes that occur in ecosystems such as nutrient cycling, production, and trophic interactions (how energy gets transferred from one level of the food chain to another).

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Additional Activities

Modified True or False Exercise on Ecosystem Ecology


Exercise

Check your knowledge of the lesson about the definition and explanation of ecosystem ecology by determining whether the following statements are true or false. For this activity, print or copy this page on a piece of paper. Write TRUE, if the statement is valid, and FALSE, if otherwise, on the blank space provided. If the statement is FALSE, write down the word or phrase that makes it wrong.

_____1. Ecosystem ecologists also study the process of energy and nutrient transfer between organisms.

_____2. Cities and jungles are both examples of an ecosystem.

_____3. Ecosystem ecology is inherently an intradisciplinary field that incorporates different fields of study.

_____4. Biodiversity and interactions within the ecosystem provide less information about the natural world.

_____5. In general, ecosystem ecology examines how physical and biological components of an ecosystem interact with each other.

_____6. Global warming has recently become a hot topic in ecosystem ecology.

_____7. Ecosystems occur naturally and could never be created artificially.

_____8. A zoo that contains a diverse range of animals is an example of a naturally-occurring ecosystem.

_____9. Trophic interactions describe energy transfer from one food chain to another.

_____10. Ecosystems are a complex network of living and non-living things that interact in a physical environment.


Answer Key

For False answers, the correct word or phrase is written in italics right next to the incorrect word for comparison.

1. TRUE,

2. TRUE

3. FALSE, intradisciplinary, interdisciplinary

4. FALSE, less, so much

5. TRUE

6. TRUE

7. FALSE, and could never be created, and be created

8. FALSE, naturally-occurring, man-made

9. TRUE

10. TRUE

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