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Ecology

This course is a part of AP®︎ Biology, a 38-course Topic series from Khan Academy.

Why are polar bears found only in the Arctic? Why does mildew grow in your shower and not (hopefully) in your sock drawer? Learn how ecologists study the interactions between organisms and their environment, and how these interactions affect where, and in what numbers, different types of organisms are found.

This course contains 8 segments:

Intro to ecology

Looking for an overview of core concepts in ecology? Just wondering what the heck ecology is? You're in the right place! Learn how organisms interact with each other and with their environment to make amazingly complex and beautiful networks.

Intro to population ecology

What population are you a part of? Humans, and other organisms, can be organized into populations - groups of organisms of the same species that are found in the same place. Learn about the tools ecologists use to study populations and predict how their numbers may change in the future.

Population growth & regulation

Any species could take over the Earth just by reproducing if it had unlimited resources. That includes bacteria, worms and snakes, which might not be things you want covering the Earth's surface in a four-foot layer! Learn how populations grow and why real populations in nature always have limits on their growth.

Intro to community ecology

Populations alone are cool. But what happens when you get populations of a bunch of different species together in the same place? Something way cooler – you get an ecological community! Learn more about how species interact with each in communities.

Community structure & diversity

What makes ecological communities more or less stable to disturbances? What happens when an invasive species is introduced into a new environment? Learn how we can describe the structure of an ecological community and why a more diverse ecological community is usually more stable.

Intro to ecosystems

What is an ecosystem? Well...it can be something as small as a tide pool,or as huge as the Amazon rainforest. But whatever size it may be, an ecosystem is made up of a community (populations of species interacting) plus their physical environment. Learn about different types of ecosystems and how energy flows through ecological communities.

Biogeochemical cycles

"Atoms get recycled." That may not sound too exciting. But think of it this way: some of the atoms in your body right now were once almost certainly part of trees, rocks, various animals, other human beings, and even dinosaurs! Learn more about how matter is recycled in Earth's ecosystems and why the water, carbon, nitrogen, and phosphorous cycles are so important to living things.

Biogeography

Have you ever noticed that different types of animals and plants are found in different places? Learn about some of the factors behind patterns of species distribution and abundance.

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Length 8 segments
Starts On Demand (Start anytime)
Cost Free
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Language English
Subjects Science
Tags Science

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Careers

An overview of related careers and their average salaries in the US. Bars indicate income percentile.

Special Populations Program Specialist $47k

Carl D. Perkins Special Populations Coordinator $49k

Terrestrial Invasive Species Project Coordinator $56k

Coordinator of Special Populations $56k

Special Populations Coordinator-Teacher $64k

Career Development/Special Populations Coordinator $66k

Many different sales & marketing positions $80k

Many different sales & marketing positions $80k

Senior Research Scientist: Non-Crop & Invasive Species Vegetation Management $83k

CalWORKs Special Populations Coordinator $85k

Project Manager/ Different Appointment $101k

Project Manager/ Different Appointment $101k

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Khan Academy

Rating Not enough ratings
Length 8 segments
Starts On Demand (Start anytime)
Cost Free
From Khan Academy
Download Videos On all desktop and mobile devices
Language English
Subjects Science
Tags Science

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