Community Ecology: Feel the Love - Crash Course Ecology #4

Interactions between species are what define ecological communities, and community ecology studies these interactions anywhere they take place. Although interspecies interactions are mostly competitive, competition is pretty dangerous, so a lot of interactions are actually about side-stepping direct competition and instead finding ways to divvy up resources to let species get along. Feel the love?

Table of Contents
1) Competitive Exclusion Principle 2:02
2) Fundamental vs. Realized Niche 3:48
3) Eco-lography / Resource Partitioning 5:25
4) Character Displacement 7:29
5) Mutualism 9:15
6) Commensalism 9:55

References

Want to find Crash Course elsewhere on the internet?

[DoctorWitten]

"biology is all about sex and not dying."

I love Crash Course.

[CombinedYT]

I can't understand him when he talks too fast. Thanks dude for the subtitles, really appreciate it.

[peterfinch]

I wouldn't be able to bear school without Hank ;-;

Best person on the planet atm

[diphowell]

The story about the warblers coexisting and finding ways to live around each other's needs to avoid competition is really beautiful and made me a little teary.

[NorthernKayakAngler]

Thank you for your videos.Since discovering crash course, my grade went from a B to an A. Your examples are easy to remember and your charisma helps me to remember details.

[piyadathanasumpun]

Who got assigned to this while in quarantine?

[inademv]

I watch these as background noise. I've taken the courses and remember the content well but it's pleasurable to hear it all again in a more casual atmosphere and in a much much more enjoyable manner.

[maximiliencosme]

Wow, tough to understand as I'm french (yeah, french people and english you know...) BUT KEEP THE SUBTITLES AVAILABLE ! By the way, wonderful illustrations (images and jokes !) and the content is crystal clear so keep it up, we need more courses like that on the internet and particularly in ecology and evolution !

Now let's push the complexity further and you will be my first-channel-to-check everyday for the rest of my Master (in ecology, of course ^^) ;)

[savannahpehrs]

I can't believe you guys! Haters, Back off! Hank DOES know what he is talking about, look it up, and he makes it so you don't have to spend an hour learning it. So if you don't like it, don't watch it, but you don't have to be rude.

[derrynator]

"Rub each-others' backs for nutritious favors." 

[TarunKumar-ensi]

Awesome explanation, for the first time in my life I am finding ecology interesting. Keep up the good work and ignore the morons crying about pronunciations.

[vandini]

While you were teaching by the sunflowers Hank sir, I suddenly thought of the hunter gatherers who started farming 1, 2000 years ago and how they learnt and struggled. And now here we are - teaching millions across the world about nutrient competition by transferring millions of images into the atmosphere as internet signal. MY GOD. I had a proud tear in my eye, even though my 14 years on Earth make a practically non-existent time in our history. :)
Don't you agree that we indeed should change our Gregorian calender to 12017, as Kurgesagt suggests?
Thank you once again, for this video.
You crack me right up.

[salemkirkland]

Millenials in a nutshell: "It's not what they studied for in college, but it makes a decent living"

[Onychoprion]

Hank Green: Campaigning to get "meh" a valid scientific measurement since 2012.

[Flapinski]

You can tell the birds in the background of the intro are layover sounds because every scene they switch, all the audio but the birds are cut. Not sure why i recognized this but i feel kinda proud.

[shortypenguin]

Hank, kneeling outdoors was such a cliche science show host thing to do.

We nerds are so proud of you.

[JustAnotherMudblood]

I got to watch this is Bio class today and I nearly crapped myself when Hank poped up. My teacher thought i was crazy

[ondreibazant-fabre]

Great work! Didn't know that much about the Niche concept. You forgot to emphasize that commensalism and mutualism are forms of Symbiosis and that there's also parasitism.

[AlexanderGailson]

Thank you, Hank, for not going into the controversy of weird scientist who do not believe in competition. I hear about it non-stop in my ecology class -.-

[anggeodacrem]

Ending up in different job. Realized niche. That's some harsh reality