What Are Ecosystems? Crash Course Geography #15

Today we're going to take a closer look at ecosystems -- which are communities of living organisms in an area interacting with their environment -- and how this relationship between the amount of energy a place receives and the movement of nutrients is what makes the incredible diversity of life possible. We'll also take a look at the patterns we see in the main global biomes, show you why some biomes (like tropical rainforests) are so productive, and discuss an agricultural practice some farmers have employed to help preserve their local ecosystems.

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#CrashCourse #Geography #Ecosystems

[crashcourse]

Hey everybody! It has come to our attention that there are a few discrepancies within this episode worth acknowledging:

First, yes, you are correct. Jaguars don’t hunt gorillas and their natural habitats are on different continents. We decided to generalize our discussion to all rainforest biomes in the Thought Bubble, but that breaks reality. So sorry for the confusion!

Also, in this episode we’d like to emphasize that we’re only discussing terrestrial global biomes and their productivity - some of the patterns we draw here are not the same for aquatic biomes.

And lastly, yes, that fish tank we illustrated is too small. Please check back regularly for our goldfish’s grand escape! -brandon

[mtvtutoring]

Im getting real Ms. Frizzle, magic school bus vibes and I love it lol

[lhfirex]

I really enjoy how this course makes the information fun, accessible, and still feels like it's teaching me something new and important each time.

[joshuabenton]

As a 28 year old adult, I find these videos both endlessly fascinating and incredibly resourceful....and to think I knew all this stuff when I was a kid...

[dorish]

Great explanation! I just wanted to add that this size fish tank is only appropriate as a thought experiment, but not for keeping fish in real life! Please if you want fish as pets keep them in a big enough aquarium with other fish, plants and enough space to swim around :) thank you

[lankyalpaca]

crash course is so amazing tbh. the footages are always so diverse and show a lot of representation, and they also never fail to mention indigenous people's rights in according topics like in this one and the linguistics series. so grateful for crash course's works! ❤

[vasavswaminathan]

A) awesome shirt
B) awesome video
C) jaguars hunt gorillas? I thought jaguars were exclusive to the Americas and gorillas to Africa

[tutreeGO]

I always knew about how critical a balanced ecosystem is but what your comparison of shifting cultivation with mass cultivations was so interesting. We are essentially sucking the nutrients dry from our most precious resources

[thomasscaife]

Man, I was taught that Slash-and-Burn agriculture was a lot less sustainable and thought out. Though, that might be because land rotation was left out in my instruction on the matter.

[matthewcorum]

Thanks for uploading! I love our planets ecosystem

[aaliyahabdurrahman]

1:57 hahha i loved the joke.keep up the amazing interesting work

[mikeysfl]

These are so good. If only Crash Course makes courses on biochemistry and microbiology.

[fancynonsense]

It was truly delightful to learn about nutrient cycles, biomes, and the geobiosphere—especially that the quantity of nutrients is capped but can be sustained by clever farming and land use.

[celestecastillo]

I'm amazed at well explained 😊 I really enjoy your course ❤ thank you!

[helmertrujillotorres]

I love you and crashcourse your are the best teachers in the world. I love geography too. Thanks for sharing your knowledge.

[Guydude]

Ah yes, another excellently informative video.

[hannamakela]

How did the jaguar get to Africa so quickly - or was the gorilla already waiting for it in South America? ;) Seriously, great video, as always! :)

[bemlem]

I understand this is a crash course, but she is speed talking through the entire video! I tried using it for my homeschool kids since it is very informative, but they couldn't keep up. 😕

[skybluskyblueify]

7:13 How do jaguars encounter gorillas? Do you mean leopards? Jaguars live in the Americas.

[krystalight]

Thank you!!!! Agroforestry for the win 🙌🏼