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Human Impact on nature

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by

Elizabeth Vértiz

on 9 May 2014

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Transcript of Human Impact on nature

Forestry
Art, science and craft of creating, repairing , conserving, using and managing forests and associated resources in a sustainable manner for human benefit.
Human Impact on nature
Human activities that affect the environment:
State of ecosystems, habitats and species
Energy
Modern agriculture is responsible for the loss of much wildlife and their habitats
The drainage of wetlands, the destruction of hedgerows and the intensive use of fertilizers and pesticides may represent a threat to wildlife.
Highly specialized monoculture are causing significant loss in species abundance and diversity.
Increased production per hectare in intensive areas, raising of livestock volume, and lower prices for agricultural products result in intensive agriculture and abandoned land.
Our world is...
• a resource for food supply
• an energy source
• a source for recreation
• a major source of medicines
• natural resources for industrial products
overuse of pesticides and herbicides
intensive farming methods
hunting
general human disturbance
Loss of Species of Fauna
and Flora
Result:
Agriculture
All energy types have potential impacts on the natural environment to varying degrees
What for?
They are used as fuels to create motion or heat.
Types
Renewable
wind
water
solar
geothermal
Non-renewable
fossil fuels
nuclear power
urbanization
recreation
industrialization
agriculture
consumerism
“Human influence on Earth can be positive or negative, benign or catastrophic. Recognizing this responsibility is the first step each of us can take to transform the human footprint and save he last of the wild.”

Dr. Eric W. Sanderson
Fishery
The activity of harvesting fish:
Aquaculture
Wild fish capture

Types
Commercial
Recreational
Subsistence
Illegal
Illegal Fishing
Types
Illegal fishing
Unreported fishing
Unregulated fishing.
They lead to...
Environmental crime.
Over-exploited species.
Threats
Agriculture (pesticides and fertilizers)
Deforestation (logging)
Windfires
Inadequate aforestation
Pollution
Industry
Extraction
Production
Distribution
Consumption
Disposal
Almost all forms of industry have an impact on the natural environment and its sustainability.
Tourism and Recreation
Some forms of tourism can be extremely detrimental to ecologically sensitive areas, resulting in habitat degeneration or destruction, in the disturbance or hunting even rare or threatened species.
Full transcript