Carry Capacity by Christopher Widmaier

Are there any populations on earth that aren't limited in size by people in some way?

1490731 — 2017-11-16 14:34:39 UTC

Whats the effect of the deer population on the number of car accidents?

2017-11-16 14:46:21 UTC

Answer: link attached
To reduce car accidents due to deer they are trying to increase hunting rights so that the population of deer will decrease. A decrease in deer population causes a decrease car crashes.

2017-11-16 14:55:20 UTC

What is the best thing that we can do to reduce the issues in population and keep a sustainable environment?

2017-11-16 14:55:28 UTC

Answer- We can do things like recycle, consume less meat and monitor reproduction.
https://www.scientificamerican.com/article/population-and-sustainability/

What is the carrying capacity of the Earth?

2017-11-16 14:57:18 UTC

Some scientist think the Earth can sustain 10 billion people. However, the possibility of reaching this is unlikely unless the entire population becomes vegetarian. There is not enough meat to sustain an omnivore population. Also, families are getting smaller so less humans are being produced. (https://www.livescience.com/16493-people-planet-earth-support.html)
-Aymari Cummings

Are there any countries who have decreased or stopped their population growth?

2017-11-16 14:58:03 UTC

Answer:
There are some countries that have negative natural increase of the population. This happens when the death rate is higher than the birth rate or they are equal. This is unprecedented in history and is caused naturally by the population and not influenced by the countries laws or regulations.
Ukraine: 0.8% natural decrease annually; 28% total population decrease by 2050
Russia: -0.6%; -22%
Belarus -0.6%; -12%
Bulgaria -0.5%; -34%
Latvia -0.5%; -23%
Lithuania -0.4%; -15%
Hungary -0.3%; -11%
Romania -0.2%; -29%
Estonia -0.2%; -23%
Moldova -0.2%; -21%
Croatia -0.2%; -14%
Germany -0.2%; -9%
Czech Republic -0.1%; -8%
Japan 0%; -21%
Poland 0%; -17%
Slovakia 0%; -12%
Austria 0%; 8% increase
Italy 0%; -5%
Slovenia 0%; -5%
Greece 0%; -4%

Nyelah O'Meally

What is the difference between an S-shaped growth curve and a J-shaped growth curve?

2017-11-16 14:58:35 UTC

J-shaped growth curves represent something closer to overshoot and collapse and are Density Independent models, while S-shaped growth curves are Density Dependent models which increase slowly at first then rapidly and when hitting carrying capacity decrease until population stabilizes.
- Raia Weathers
http://www.encyclopedia.com/earth-and-environment/ecology-and-environmentalism/environmental-studies/s-shaped-growth-curve
http://www.encyclopedia.com/earth-and-environment/ecology-and-environmentalism/environmental-studies/j-shaped-growth-curve#1O8Jshapedgrowthcurve

How would the decrease in hunting and killing of deer impact the world population?

2017-11-16 14:58:47 UTC

The decrease in hunting and killing of deer would create an overpopulation of deer which may lead to starvation and create an imbalance in the environment they surround themselves in.

How low does the population of a species need to reach to be considered endangered?

2017-11-16 14:59:35 UTC

The amount that the population needs to reach to be considered endangered is 2,500 mature adults at a time. Growing animals of the species don't count until they're in there final form of life which would be mature. (Anthony Lynch)

How many humans can the earth sustain?

2017-11-16 14:59:40 UTC

Researchers have found that earth can hold between 9-11 billion people. This is based on the amount of freshwater available and the amount of food earth can physically produce. It is estimated that a population of 11 billion will be reached by 2100. So, it is necessary for there to be a general decrease in birth rates to ensure that it will not get to this point. Another factor that effects this is the certain lifestyles of people because of consumption and wealth.
http://www.bbc.com/earth/story/20160311-how-many-people-can-our-planet-really-support
https://www.livescience.com/16493-people-planet-earth-support.html

What will happen when earth has reached its carrying capacity

890152801 — 2017-11-16 14:59:54 UTC

http://steadystaterevolution.org/carrying-capacity-reached-the-need-for-population-stability/
When the cap for population has been reached for earth then the human race will begin to drop heavily in numbers because of so many people consuming so many resources we will eventually run out and wont be able to provide for ourselves any longer.

How does carrying capacity affect the size of a population?

890208577 — 2017-11-16 15:00:46 UTC

The size of a population can only grow to equal the amount of resources the environment can provide. So if there arent many resources in an area and too large of a population, then there will be starvation and fight for resources

Does hunting and trapping impact the ecosystem of the wildlife?

890161020 — 2017-11-16 15:00:56 UTC

When people hunt and trap wildlife, the population decreases. When the population decreases it disrupts the ecosystems by changing the predator-prey interactions.
http://www.ramp-alberta.org/resources/hunting/hunting.aspx

Is there a way to stop the human population from exponentially growing?

2017-11-16 15:01:59 UTC

If the world was to adopt child birth laws to limit families to having 2 children then the growth of the population would decrease. If the world does not adopt these policies then we will reach the Earth's carrying capacity faster than we would like.
http://www.sciencemag.org/news/2014/10/no-way-stop-human-population-growth

What do populations that has reached carrying capacity have?

890156711 — 2017-11-16 15:03:05 UTC

A S shaped growth curve!
https://quizlet.com/127781749/populations-flash-cards

How much carbon dioxide is put into the air every day?

890160290 — 2017-11-16 15:03:40 UTC

The world's nations combined almost 38.2 billion tons of carbon dioxide that was emitted into the air from the burning of fossil fuels such as coal and oil. The total amounts show that approximately 2.4 million pounds of Co2 is being released every second.

How many animals a year die from human consumption?

2017-11-16 15:04:11 UTC

Over 56 billion farmed animals are killed every year by humans

By adopting a vegan diet we can personally save up to 95 animals a year, and thousands during our lifetimes.

Fishes, Hens, Cows, Pigs, Chickens, Turkeys, Ducks are the most common animals

Is safe, legal hunting a good or bad thing for the overall eco-system?

2017-11-16 15:04:13 UTC

When controlled, hunting can help reduce the amount of troublesome animals which overstep their natural carrying capacity because of their lack of natural predation (their predators were over hunted by humans), so keeping their numbers down will keep them from consuming too many resources and losing over all bio-diversity.

Are carrying capacity for humans and animals the same

2017-11-16 15:05:14 UTC

http://science.jrank.org/pages/1244/Carrying-Capacity.htm

Humans can sustain themselves by the resources the environment provides and other species in the ecosystem. We also increased the carrying capacity of animals such as domestic animals. We also limit the carrying capacity for animals such as force reproduction and hunting them.

Can the extinction of a certain organism bring down a whole ecosystem?

890156346 — 2017-11-16 15:06:19 UTC

Yes, keystone species or a species on which other species in an ecosystem largely depend, rely on these organisms to their jobs in order to live their lives.

Is there a population that has a wild growth in an area and still continue to be sustainable?

890158119 — 2017-11-16 15:09:29 UTC

The population of snakes on Snake Island is sustainable. The exact population and species on this island are not going to be 100% accurate due to the fact that these snakes are very venomous and practically impossible to survive on the land without getting attacked. The snakes on this land are making due with food that are coming to their land not knowing what the land obtains. While some of them eat the food that are coming to their land some of them are able to eat what s on the land including frogs, lizards, and insects that are plentiful. So they are constantly being fed and sustained on the land.

How do I know these answers are right?

1490731 — 2017-11-17 11:30:55 UTC

That is a good question. Reading through them most have accurate information and I can double check because a link or reference was included that can help me confirm it is an accurate source. For example I trust livscience. I am skeptical if they don't have sources shared and you should be too. It is always a good idea to share your source. Actually not just a good idea, essential.