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Natural and Human Impact - Coggle Diagram
Natural and Human Impact
human impact
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habitat destruction
When a natural habitat, such as a forest or wetland, is altered so dramatically that it no longer supports the species it originally sustained. Plant and animal populations are destroyed or displaced, leading to a loss of biodiversity.
biodiversity definition-
the variety of plant and animal life in the world or in a particular habitat, a high level of which is usually considered to be important and desirable.
chemical pesticity
insecticide
Insecticides are chemicals used to control insects by killing them or preventing them from engaging in undesirable or destructive behaviors. They are classified based on their structure and mode of action.
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Pesticides are chemical compounds that are used to kill pests, including insects, rodents, fungi and unwanted plants (weeds). Over 1000 different pesticides are used around the world.
Pesticides are used in public health to kill vectors of disease, such as mosquitoes, and in agriculture to kill pests that damage crops.
who is at risk?
The general population is exposed to low levels of pesticides through food and water, and these are not typically cause for concern. People at higher risk of adverse health effects are those who work directly with pesticides, such as agricultural workers, and those who are in the immediate area when pesticides are applied. People not involved with applying the pesticide should avoid the area during and immediately after its use.
chemical pollution
When chemicals are released into our environment and disrupts the balance of our ecosystems, threatening our health, polluting the air we breathe and contaminating our food.
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over cropping
Overcropping of animal populations means killing more animals than being replaced by the normal breeding cycle. This results in the decrease of the population. One of the important roles for ecologists is to find out how many animals can be removed from a population without making them close to extinction. Regulations control how many animals may be taken. These regulations vary for different species.
natural impact
bushfires
an uncontrolled fire in the trees and bushes of scrubland. Bushfires in Australia are a widespread and regular occurrence that have contributed significantly to shaping the nature of the continent over millions of years.
drought
A drought is a prolonged period with less-than-average amounts of rain or snow in a particular region. The severity of the drought depends on the amount of time that a region receives below-average precipitation.
flooding
A flood is an overflow of water that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline