How would the ecosystem’s carrying capacity for a species change, if the species cannot adapt to changes of habitat?
i really need to know about the carrying capacity, because i know what would happen if they can not adapt, they would die.

Carrying Capacity is the maximum population size of the species that the environment can sustain indefinitely. [ Given habitat is same ]

So, now if you change the habitat, you would have a different ecosystem, and as species cannot adopt to changes of habitat, then they would get eliminated. Their number will be reached to zero, it will get permanently destroyed from that ecosystem.

Hope this helps!

Yes he thought they should be left to chance why, because he thought that was the best thing to do