When prey is overhunted, some of the predator population dies out (negative feedback, if you will) ... please don't make it sound unnatural.
I think it's OK to characterize human interaction with the ecosystem as unnatural.
Feedback loops like the one you mention work OK for cheetahs and gazelles. Too many cheetahs leads to too few gazelles leads to skinny cheetahs and eventually to fewer cheetahs, etc. But that happens because one is the food for the other; the amount of predation is directly related to the current populations of both, and the amount of predation also has an impact on the future of predation.
Consider an alternate history scenario: No replacement for sperm whale oil was ever found. Sperm whales were hunted entirely to extinction to keep those big American cars rolling. When the whale oil ran out for good and all, Americans all learned to drive stick. Impact on human population of the planet: none. Impact on the rapaciousness of future generations: questionable. Feedback loops (as opposed to straight-line cause and effect) closed or otherwise in evidence at all: zero.
Human interaction with the ecosystem is fundamentally different from the interactions that arise between the other actors within it. Demand for sperm whale oil had virtually nothing to do with the number of humans alive on the planet, and the amount of whale oil left in the world had no impact on the demand for cars, either. With no reciprocal connection, there are no levers for a feedback loop to even take hold of.
One might even say that what separates humans from animals, in the grand scheme of things, is our ability to escape from the feedback loops the rest of the ecosystem is in the thrall of, or even to escape from the feedback loops the rest of the ecosystem is.
> Americans all learned to drive stick. Impact on human population of the planet: none. Impact on the rapaciousness of future generations: questionable. Feedback loops (as opposed to straight-line cause and effect) closed or otherwise in evidence at all: zero.
Either less drivers on the road or more accidents ( i did drive stick back in the Russia and it is very different driving, esp. when all around you is also driving stick). It would also result in smaller cars with less powerful engines. It looks like a very powerful feedback loop for me.
>Demand for sperm whale oil had virtually nothing to do with the number of humans alive on the planet
Huh? who was driving automatic transmission cars?
>One might even say that what separates humans from animals, in the grand scheme of things, is our ability to escape from the feedback loops the rest of the ecosystem is in the thrall of, or even to escape from the feedback loops the rest of the ecosystem is.
a very Grand Statement of Dilusion. We'll see how we escape global warming.
Either less drivers on the road or more accidents ... looks like a very powerful feedback loop for me.
I think you wildly overstate the impact of a whale-oil shortage on traffic. Regardless, unless the horrible maiming of a few thousand distracted drivers would somehow save the whales, we're not talking about a loop.
Huh? who was driving automatic transmission cars?
Humans were, of course, but demand for whale oil was a function of the number of automatic transmission cars on the road, not a function of the human population count. And the places with the strongest population growth at the time (China and India, I would guess) weren't the places buying up all the fancy new auto-transmission cars.
If there were a strong relationship between the population and the demand for this commodity, then demand would have risen relatively smoothly with the population, rather than exploding with the rise of the American suburb.
We'll see how we escape global warming.
I don't know what will happen, but I'm confident quite a few animal species are going to be a lot more screwed than humanity as a whole will be. As long as there's a way to keep humans comfortable by strangling the ecosystem, some of us will do so.
I think it's OK to characterize human interaction with the ecosystem as unnatural.
Feedback loops like the one you mention work OK for cheetahs and gazelles. Too many cheetahs leads to too few gazelles leads to skinny cheetahs and eventually to fewer cheetahs, etc. But that happens because one is the food for the other; the amount of predation is directly related to the current populations of both, and the amount of predation also has an impact on the future of predation.
Consider an alternate history scenario: No replacement for sperm whale oil was ever found. Sperm whales were hunted entirely to extinction to keep those big American cars rolling. When the whale oil ran out for good and all, Americans all learned to drive stick. Impact on human population of the planet: none. Impact on the rapaciousness of future generations: questionable. Feedback loops (as opposed to straight-line cause and effect) closed or otherwise in evidence at all: zero.
Human interaction with the ecosystem is fundamentally different from the interactions that arise between the other actors within it. Demand for sperm whale oil had virtually nothing to do with the number of humans alive on the planet, and the amount of whale oil left in the world had no impact on the demand for cars, either. With no reciprocal connection, there are no levers for a feedback loop to even take hold of.
One might even say that what separates humans from animals, in the grand scheme of things, is our ability to escape from the feedback loops the rest of the ecosystem is in the thrall of, or even to escape from the feedback loops the rest of the ecosystem is.