Can animals survive without human beings in an urban setting?

Question

It is obvious that in the wild, animals can care for themselves, thank you very much. I'm talking about if humans were to disappear in, say, New York City or San Francisco, what would the ecosystem there be like?

To add, what will city creatures eat without our leftovers?

Answer 1

Have you ever seen an abandoned house?
Within a year it is hard to see the place because of the vegetation that takes over. And animals quickly move in. You see to nature it isn't a Colonial style home or a Brownstone. It's a misshapen rock. And as nature does it will eventually consume it. The vines will crack the walls, the roots will make the foundation rubble and the rains and wind will take care of the rest. Animals will glean whatever there is to be gleaned throughout the process.

Answer 2

An ecosystem needs energy, water and nutrients. In cities, those basics are for a large part brought in by human in the form of food and water import. If humans were to disappear, the biological activity in the cities would decrease. The plants in parks would probably still grow. Unless they depend on human-supplied water and fertilizer, but in that case they would just be replaced by more robust plants. Some animals would be able to survive on those plants. My guess is that pigeons would have a very hard time, but rats would be able to survive, although in smaller numbers.

If the city has a seaport, some birds and possibly a few rats would be able to survive on the primary production from the sea.

In the long run: see the answer above.

Answer 3

in the long-term nature will tear down any city and revert it back to wilderness then animals would do fine. short term (lets use nyc as an example) there wouldnt be much of an evident ecosystem. nature depends on the food chain. in a city like new york the vast majority of it is paved over....it will take a long time for the plants to absorb it. no plants, no herbivores.....no herbivores then no carnivores. things that dont need much soil or nutrients to grow (like some molds) would do ok, and the cirtters that feed on them too. but animals like cats, dogs, birds, etc. would quickly die off or migrate out. no food, no survival. along the seaboard u would have animals that depend on the ocean for food...and along the outskirts of the city you would have animals sheltering in buildings...but they would rely on food sources outside of the city.

for example put a coyote in the city...what would he eat? he would need something like chipmunks, etc. but what would the chipmunks eat if there werent any plants to harvest from? all animals depend on other animals/plants.

of course nyc has some parks where wildlife would do ok, but as for the cityscape itself...it would be pretty vacant, animals dont live where there isnt food and there isnt much food to be found on huge hunks of cement.

in smaller cities where there is more soil for plant life to thrive in, then the food chain would quickly form.

Answer 4

life will always find a niche. some of the most abundant ecosystems on the planet surround those evil old oil rigs. even without people, the structure survives, and that is what life needs to get a foothold is structure.

Answer 5

Of course they can survive without us in a human setting. We wipe out animal populations...we don't help them survive. They would probably thrive if we were gone.

Answer 6

My answer is in basic terms that it relies upon on the human, and your definition of residing. all and sundry can biologically stay without a god or gods of their existence, yet to easily stay in a state the place one is chuffed with the international around them, one will possibly no longer choose a God or gods, of their existence. it easily relies upon on what your god or gods extremely is/are. some compliment nature, others kin, some the two. there are maximum of a thank you to grant compliment. some criminals are arrested interior the call of what they have self assurance in and via their God/gods. My answer to you, if i replaced into to declare their replaced into one God may be that why could God supply any further to a human than existence. God opens all doors, and it rather is as much as us to locate our room. Drug addicts are no longer pleased with their lives, and that they want some thing everlasting to have self assurance in, whether it rather is a faith or otherwise for this reason maximum of drug addicts seek for a faith. Religions grant a stay nicely feeling, while a individual would have a protracted era of happiness. drugs are a style of sense sturdy happiness, while the happiness is in basic terms momentary, for this reason a drug addict continually desires further and extra, with a view to cause them to selves happier for longer. Drug addicts do no longer see a god of their existence, via fact they are feeling the happiness from the drug of selection. My answer to you is that without some thing to have self assurance in, the human is broken, and broken issues won't be able to stay long if in any respect.

Answer 7

Animals can survive better without human interfering in any setting.

Answer 8

yes