00:01
Which of these is most likely to be stable? one where the keystone species is removed.
00:07
One with relatively high species richness.
00:10
One with very high species diversity.
00:13
One that lacks decomposes.
00:17
One with uniformly spaced vegetation.
00:19
One with low species richness.
00:23
Okay, so we have some here that will be likely unstable, and we have some that will be likely stable.
00:31
So start with the unstable once.
00:33
A.
00:34
If you remove a keystone species, then you're going to severely damage the stability of the community because the keystone species is very tightly linked to the stability of this ecosystem.
00:45
For example, beavers and dams.
00:48
If you remove the beavers, you may lose the entire ecosystem.
00:53
Okay, if we go down to d, decomposers.
00:58
So you need decomposers for the recycling of the recycling of the nutrients.
01:03
If it lacks them, then you're not getting recycling of nutrients.
01:10
Recycling nutrients...