59 terms

Human Impacts Bio

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monoculture
the practice of clearing large areas of land to plant a single highly productive crop year after year.
monoculture enables
efficient sowing, tending, and harvesting of crops using machines
agriculture impacts
natural resources mainly with fertilizers
sustainable development
using natural resources in a way that does not long-term environmental harm
goods
things that can be bought and sold, have value in terms of money
services
processes or actions that produce goods
ecosystem goods/services
goods/services produces by ecosystems that benefit human economy
renewable resource
can be produces or replaced by a healthy ecosystem
nonrenewable resource
natural processes cannot replenish them within a reasonable amount of time
deforestation
completely clearing and destruction of a forest
desertification
making a land lose its nutrients and becoming a desert-like area
fragmentation
breaking up a large habitat into smaller isolated patches
pollution
air, water, and solid waste
wetlands destruction
drained for development
natural habitat destruction
can happen through processes such as volcanism, fire, or climate changes.
man made habitat destruction causes
urbanization
agriculture
mining
logging
mass fishing
etc
in air pollution
smog
nitrous oxide
greenhouse gases
suspended particles
other
clean air act 1970
reduced emissions from vehicles
smog
haze formed by chemical reactions among pollutants released into the air by industrial processes and automobile exhuast
smog effects
ozone
ozone
form of oxygen that is found naturally in the upper atmosphere, absorbs harmful UV radiation from sunlight before it reaches Earth, but at ground level it threatens health of humans esp those with respiratory problems
acid rain caused by
burning of fossil fuels that release nitrogen and sulfur compounds, when they combine with water vapor and precipitate they result in acid rain
acid rain can dissolve and release
mercury and other toxic elements from soil
greenhouse gases caused by
burning of fossil fuels and forests
main greenhouse gases
carbon dioxide, methane, and water vapor sometimes
greenhouses gases contribute to
global warming and climate change
particulates
microscopic particles of ash and dust released by certain industrial processes and certain diesel engines
particulates can cause
serious health problems for humans
causes of air pollution
factories/coal burning plants
motor vehicles
industry
aerosol
refuse disposal
greenhouse effect
process where gases trap heat in the atmosphere
global warming
increase in earth's average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect
causes of greenhouse effect
burning of fossil fuels increases carbon dioxide in atmosphere
factories produce gases
methane gas released from tundras and wetlands
deforestation ruins the balance that trees give to the atmosphere through photosynthesis
Effects of the Greenhouse effect
rising sea levels
droughts or floods
faster evaporation
climate shifts
melting ice
increase in precipitation
5 cleaner energies
hydroelectric
solar
wind
geothermal
nuclear
causes of greenhouse effect
burning of fossil fuels
pollutant
harmful material that can enter the biosphere
point-source pollutant
pollutants that enter water supplies from a single source
non-point pollutant
pollutants that enter water supplies from many smaller sources
point pollutants caused from
sewage
power plant
industrial/radioactive waste
steel mill
non-point pollutants caused from
runoff
acid mine drainage
air pollutants (acid rain)
oil & gas development
biological magnification occurs if
a pollutant is picked up by an organism and is not broken down or eliminated from its body. Instead, the pollutant collects in body tissue.
pollutants in biological magnification are transferred through
food chains/webs
biodiversity benefits
contributions to medicine and agriculture
provision of ecosystem goods and services
3 types of overuse
poaching
overfishing
overhunting
poaching
The illegal practice of trespassing on another's property to hunt or steal "game" without the landowner's permission
overfishing
The exhaustion of a supply of usable fish in a certain area
overhunting
The excessive search of wild animals for the purpose of catching or killing
why is overfishing a problem
oceans fisheries are being depleted faster than they can be renewed
poaching can cause
species to become endangered and even extinct
extinct
any species that no longer exists on earth
endangered
any species in danger of becoming extinct throughout all or in any significant part of its range
threatened
any species that is likely to become endangered in the forseeable future
causes of ext, thrt, endgd
intentional killing (delicacies/danger to livestock
habitat destruction
changing communities (invasive species)
natural causes
causes of ext, thrt, endgd
intentional killing (delicacies/danger to livestock
habitat destruction
changing communities (invasive species)
natural causes
causes of ext, thrt, endgd
intentional killing (delicacies/danger to livestock
habitat destruction
causes of ext, thrt, endgd
intentional killing (delicacies/
extinct
any species that no longer exists on earth
endangered
any species in danger of becoming extinct
threatened
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