If we eliminate at random some parts of a machine, the machine could work for a while but wouldn't be a surprise if a cascade of malfunctions appear. Is the same with ecosystems. When they run smoothly people often do not notice the advantages and that this is the work of thousands of years.
> What do we expect...?
Short answer: Nothing good. Maybe a few golden years and then less water, less food, worst climate and war.
Long answer: Some people do not see any problem because the ecosystem is quickly replaced for another ecosystem. This new scenery can have even more diversity if the disturbance is mild, like if we change a young forest by a meadow, so yes, we can breed cows in the rain forest or turn a coastal eucaliptus forest in a weat field... but only for a few years. There is a prize attached. Such ecosystems can be also easily disturbed and turn into a oligoculture of the most tougher species, than are often poisonous or unedible.
Therefore humans suffer also with the change. Sometimes entire civilizations dissapear, like in the case of the Mayan empire; in other cases all humans can ever be entirely eradicated, like in the Easter Island case. We have historical registers of deserted cities all aroung the world by a greedy management of natural resources. Desertification, deforestation or a bad harvest by new plagues, lead typically in our species to war for the resources. We are not much unlike lemmings in this sense. The concept of war today is totally different to "a few people trowing spears and arrows".
> What do we expect...?
Short answer: Nothing good. Maybe a few golden years and then less water, less food, worst climate and war.
Long answer: Some people do not see any problem because the ecosystem is quickly replaced for another ecosystem. This new scenery can have even more diversity if the disturbance is mild, like if we change a young forest by a meadow, so yes, we can breed cows in the rain forest or turn a coastal eucaliptus forest in a weat field... but only for a few years. There is a prize attached. Such ecosystems can be also easily disturbed and turn into a oligoculture of the most tougher species, than are often poisonous or unedible.
Therefore humans suffer also with the change. Sometimes entire civilizations dissapear, like in the case of the Mayan empire; in other cases all humans can ever be entirely eradicated, like in the Easter Island case. We have historical registers of deserted cities all aroung the world by a greedy management of natural resources. Desertification, deforestation or a bad harvest by new plagues, lead typically in our species to war for the resources. We are not much unlike lemmings in this sense. The concept of war today is totally different to "a few people trowing spears and arrows".