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5th hour AP Bio: Ecology 6- Human Impact: A Collaborative Student Project

6 of 6 of my Ecology Unit. Image Credits: Biology (Campbell) 9th edition, copyright Pearson 2011, & The InternetProvided under the terms of a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

ron silveira

on 15 October 2013

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Transcript of 5th hour AP Bio: Ecology 6- Human Impact: A Collaborative Student Project

Human Impact:
How It Works
A Survey
You are assigned one aspect of human impact to investigate and report on.

You will report on your investigations in the frame that has your aspect as a title.
What you can do:
Include all of the information/items required (really, you have to do that).
Change colors, font orientations, select from the three font options in the text window.
Insert any shapes, lines, arrows, etc., as necessary.
Move and resize any elements in your frame.
You must include:
A description of what the impact is, and its cause.
A description of multiple effects that come from the impact.
A description of at least two things that could be done to minimize the impact on the environment.
Pictures (you can use the ones that I have provided or not, but you must also include your own pictures--with hyperlink reference citations).
A link to a youtube clip about some aspect of the impact.
References to at least three sources where people can learn more about the impact (wikipedia is not acceptable--several of these are controversial topics).
Things That Can Be Done
What you can't do:
Resize your frame.
Change your frame type.
Alter the font colors, choices, etc., on a GLOBAL basis (stay out of the Colors & Fonts menu).
Provide/link to any low quality or inappropriate resource.
Climate Change
Things That Can Be Done
Biological Magnification
Overexploitation of
Things That Can Be Done
Habitat Destruction
Habitat Fragmentation
Things That Can Be Done
Ozone Depletion
Things That Can Be Done
Invasive Species
Things That Can Be Done
Things That Can Be Done
Things That Can Be Done
Acid Precipitation
Things That Can Be Done

Invasive Species are a species of any organism that humans move into an environment in which they are not native and do not belong.
Most of these species often become a nuisance to humans or they can feed on the the native species of the area in which they have been moved. They can only do this because in the area in which they are moved, they are far away from their natural predators and they out compete the native species for food.
The only thing that can possibly be done would be the rapid killing/hunting of all invasive species.
Jackson, Robert B. AP Edition Biology. Eighth ed. San Francisco: Pearson Education Inc., 2008. 1249-50. Print.
Poaching is the illegal taking of wildlife, in violation of local, state, national, or international laws. It's caused by economic and survival reasons (poached animals offer a high profit, and when desperate, people will poach so that they have some food to eat).
Effects of poaching include the reduction in animal populations, which can lead to extinction. In addition, the entire ecosystem can be impacted; if the poached animal is on the top trophic level, then lower levels can grow out of control, while if the poached animal is on a low trophic level, the animals that depend on it for food will decrease.
A rain or any form of precipitation
that possesses elevated levels of
hydrogen ions. It is caused by the burning of wood and fossil fuels, including coal and oil, releases oxides
of sulfur and nitrogen that react with water in the atmosphere, forming sulfuric and nitric acid. The acids eventually fall to Earth's surface as
acid precipitation.
Effects of acid precipitation include harmful effects on plants, aquatic animals, humans and infrastructure. Acid rain can cause paint to peel, corrosion of steel structures such as bridges, and erosion on stone statues.
AP* Edition Biology Eigth Edition
The ozone is a layer of O3 molecules that protect the earth from harmful UV radiation. Ozone depletion is the thinning of the ozone layer due to the building up of CFCs (chlorofluorocarbons) that are used in refrigeration and manufacturing. When the CFCs rise up to the ozone layer it reduces the O3 molecules to O2 molecules.
Currently the only thing we can do is lower the
use of CFCs. Although the CFC's will continue to
damage the ozone for at least 50 years.
Some plants are sensitive to the increase of UV rays hitting the Earth. This causes a reduction in growth, photosynthesis, and flowering. Ozone depletion also causes a decrease in the amount of phytoplankton. With more UV ray exposures, humans and animals can develop skin and eye cancers.
- AP Biology Text Book
One thing has been done to stop biomagnification. In the 1950's DDT was used on agricultural pests, but has now been banned due to the negative impact on the environment.

Avoid using toxic pollutants or pesticides and dispose of them properly if you do use them.
*AP Biology- Eighth Edition
Overexploitation of resources occurs
when resources are harvested at a rate that is greater than their rate to regenerate, and it is difficult for the resource to rebound.
causes negative mutations in mostly top predators.

Humans eat fish that contain mercury and mercury has many bad effects on the body, including some cancers, and damaged nervous system and cardiovascular system.
Biological magnification is the increasing concentration of a substance in the tissues of organisms at successively higher levels in a food chain.

A primary producer may have toxins on it but not enough to do it harm. A primary consumer may however eat the producers, increasing the amount of deadly toxins in its body. As the food chain goes on, the amount of toxins rises and the final consumer has eaten thousands times more toxins than what was in the primary producer.

Overexploitation may
lead to the extinction of
resources because they
are over used or hunted.
It also threatens biodiversity. It can negatively effect the ecosystem and food webs by overexploiting an organism.
AP biology text book
Things That Can Be Done
Climate Change is the lasting change in the distribution of weather patterns over a period ranging form decades to millions of years. One of the biggest causes of climate change would be greenhouse gases.
http://en.wikipedia.org/wiki/Climate_change http://climate.nasa.gov/effects
Some effects of Climate change that scientists have observed would be shrinking of glaciers, loss of sea ice, longer and more intense heat waves, and trees have started to flower sooner.

Main causes of deforestation are human population growth and human activity
Deforestation is the removal of a forest or
stand of trees where the land is thereafter
converted to a non-forest use
Habitat Loss
Less Biodiversity
Flood Landslide
Soil Damage
Climate Change (Canopy)
Maximize land potential
Cut Plant
How Stuff Works/Science
Support legislation that promotes species conservation

Overpopulation is the growth of a
population past its carrying capacity.

Possibly caused by an increased birth
rate and decreased death rate, or
increased immigration and decreased emigration
Effects of overpopulation or a decrease in the resources present in the environment. To many individuals present in the environment will use up the resources faster then they can be replenished. This would eventually cause a decrease in the population, and might even cause other populations to decline.
Possible add more natural predators to the environment in order to decrease predation. Allow and control hunting of the overpopulated species to ensure that the right amount is taken out of the environment.
Habitat Fragmentation is the alteration of a habitat resulting in spatial separation from habitat units from a previous state of greater continuity. Causes of habitat fragmentation include: Human Devolopment, Roadbuilding, deforestation, and conversion to grassland, agriculture or pasture.
The encyclopedia of Earth
Capital Regional District
Effects of habitat destruction/fragmentation include the destroying of habitats, that could in turn cause the species to become endangered. The biodiversity of the species also gets lowered because the amount of food and shelter is being taken away.
Things that can be done to help stop habitat destruction would be to stop polluting the air. Before building in your property learn about the natural habitat, there may be ways to build and still protect wildlife. Help prevent the spread of invasive species in natural habitats. And lastly, where possible, leave fallen trees in streams, it slows down the flow of water and
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