Predator prey cycle | Ecology | Khan Academy

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What effect do interactions between species have on the sizes of the populations involved? Learn about the dynamics of predator and prey populations, and how they can influence one another’s patterns of growth and decline.

Ecology on 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.

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[x.graceterry.x]

who's watching this for Science homework? ;D

[Staytruegoggins]

Another observation is - there seems to be a delay between prey population increase and preator population increase. This delay is due to brith rates and breeding season etc .

[raquelnavarro]

this teacher / narrator is best!! they have helped me so much in bio, chem, plant science and explian things so well!! Thank you!!!!

[Redcoat]

i m in love with his online handwriting. My normal writing is neat, but

[Cipi]

where is the math on this though :D? Show us how to model it

[dnne.dark]

Where do teachers find these videos like whats there search history bc I can never find 1 video with 1 search i have like 30 searches to find a video

[Ahmed.r.a]

Can anyone tell me what's the name of the device he is using for writing on screen? any tips will be appreciated.

[nmm]

what website do u use for your explanations?

[Bhatt_Hole]

Sometimes when I'm watching highly fascinating and informative videos like these I'll be multitasking. Like, I'll be listening to the lesson but also polishing my zippo lighter, or cleaning out my ears, practicing limbo, or cutting my toenails. Ever do that, and the piece of nail flies into another dimension? I mean, a room is only so big, right? But despite spending a disproportionate amount of time searching, the nail clipping can never be found. My theory is that it simply doesn't exist anymore. Not in our plane of existence at least. So I adopted that theory. The next step, as dictated by the scientific method, was to experiment and either prove or disprove my hypothesis. So I went to Asda and purchased the largest makeshift enclosure I could find (and those lovely Extra Special Cumberland Pork Sausages), which was an oversized vacuum bag for storing bed linens, pillows, comforters, or those Christmas sweaters made by the ladies of our congregation for the residents of an assisted living home for unwed fathers with learning disabilities. It was a tight fit, but being a very petite lady I was able to fit inside. I then sealed the bag, to rule out any variables and ensure that the nail clippings would most certainly be trapped within the containment area....IF they were even part of our universe anymore. So I began cutting my nails, filled with excitement at the thought of finally having verifiable data and bringing this experiment to a conclusion which I would then be able to publish. And a conclusion is exactly what I got! However, it was at this time I realized that I had foolishly left the water running in the kitchen. You see, our kitchen is quite far from the boiler, and it takes a good amount of time until it would become hot enough to wash the pans, plates, silverware, grapefruit knife, pastry-crimper, egg cups, vintage butter molds, our wonderfully innovative never-soggy cereal bowls, and some of the tools used by the Mohel from the ceremony on Friday, which were all dirty and waiting for a good scrub. I had turned it on and completely forgot I'd done that. What a silly cow I am. So while quickly trying to open the seal and race over to the kitchen I slipped on something gooey/slimy on the floor, and ended up injuring my anterior superior iliac spine, which took weeks to completely heal. But in the end, I'm just happy I was able to test my theory which, interestingly, spawned new theories due to the rather unexpected results of my initial experiment. I won't spoil the wonderful surprise of course, I know you are all absolutely rabid with curiosity but being the logical and disciplined people I know you to be you'll want to read my published and peer-reviewed results, which is in the Catholic Parish of Staines newsletter.

Bless you all. Each and every one.

[tylerlowe]

In this Predator-Prey model, we can see that the Canadian Linx is sorry.

[gery]

is it possible that there will be a constant density of predators but the density of prey will continue to increase? if it happens in nature then in what circumstances can it happen?

[zovemsehrvoje]

Why do we only see these extremes? Could it happen for those lines to be both in the middle ?

[Autumn]

what do u think this guys name is Chad or Jhon

[jeremyvenetz]

Do we have enough data to simulate the entire world, with all the different species on earth? It would be great to help mankind to build a sustainable world, what do you think?

[LemonToGo]

There could have been some more information about this model in this video

[ObjectsInMotion]

I don't think this is right. From the way he's explaining the predator population is the inverse of the prey, or the second derivative. But from what I've seen and the data, it's more like the first derivative.

[grantdehnke]

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[royj]

Good teacher, but I had to put video on 2x speed cause you talk slow af and have useless breaks and maybe cut out the time u are drawing a graph.

[zizkovhoodmoments]

the narrator sounds like 3blue1brown if he wasnt such a nerd

[_gramz]

yeeet im disliking this haahhahah SaVaGe life my dudes