The maximum number of individuals a certain area can sustain is known as the a. intrinsic rate o

The maximum number of individuals a certain area can sustain...

Key Concepts

Carrying Capacity

Carrying capacity is a fundamental concept in population ecology that refers to the maximum number of individuals or the largest population size an environment can sustainably support based on the available resources such as food, habitat, water, and other necessities. It is a key parameter in models of ecological dynamics, particularly in the logistic growth model, where it represents the upper limit that a growing population approaches over time.

Transcript

00:01 In this video, we are going to look at something called carrying capacity.

00:05 So our question is asking about the maximum number of individuals an area can sustain or can hold and support.

00:18 So that is our carrying capacity.

00:22 Now, what are some factors that impact our carrying capacity? let's write this up here.

00:32 Caring capacity.

00:33 Now, carrying capacity can be impacted by a few things.

00:39 For example, it could be impacted by population sizes.

00:48 It could be impacted by the resources available.

00:57 It could be impacted by the type of reproduction, reproductive strategy, whether it is r or k.

01:12 And there are other things that can impact this, but let's talk about what specifically carrying capacity is.

01:20 When we start off with growth in a population, it usually starts pretty slow, and it gradually increases over time, and then it starts to do what we call exponential growth.

01:40 So it grows very rapidly in a short amount of time.

01:46 And so if we say that time is along the bottom here, and let's go back a little bit on our graph here.

02:01 Oops, just take that off of there.

02:13 Let's draw that again.

02:15 So it goes over time, over time, starts to grow exponential.

02:20 And there's going to come a point where it starts to level off.

02:27 And it may go above and below that a little bit.

02:31 But the point where it starts to level off right here is called our carrying capacity.

02:42 I'm going to just abbreviate that cc there.

02:46 Now that carrying capacity is the point where there's no more are not enough food or habitat resources, various things that are, that a organism would need to survive.

03:01 There's not enough of that for that population to thrive.

03:06 So right here at the very bottom, there was plenty.

03:09 There was plenty for that organism to survive with...

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