ecology exam review Flashcards
ecosystems that are biotic and abiotic
biotic: forests, deserts, oceans
abiotic: parks, neighbourhoods, farmland
how are the biosphere, lithosphere, hydrosphere, and atmosphere connected?
they all interact with each other
factors affecting habitat fragmentation
farmland expansion, volcanic activity, human activity, urban expansion
what are reasons for habitat loss
climate change, urban expansion
what are ways invasive species have been introduced
overseas transportation, using that species to kill another invasive species, not washing your clothes properly, species getting moved to another because of urban expansion
how can we control invasive species after theyve been introduced
introduce another species (not the greatest idea), pesticides, hunting/fishing
how can we avoid the introduction of an invasive species
washing your clothes if you’re going from one environment to another, checking boats, not building too much in certain areas, be considerate of the land
what causes primary succession? secondary succession?
volcanic activity for primary succession, natural disasters for secondary succession
what are things humans have done that have impacted earths ecosystem
put too much fossil fuels in the air, garbage in the ocean, litter
methods of cleaning oil spills
controlled burns, dispersants, skimming
example of natural ecosystem
ocean
example of engineered ecosystem
farm
strategies farmers use to have a better crop yield
rotate crops annually, spray pesticides
is an farm or forest more sustainable
a forest would be more sustainable because they don’t use pesticides, food isn’t often picked. animals can roam wherever they want.
how can you reduce your carbon footprint
don’t litter, reduce pesticide use, be considerate of the environment, clean up beaches, unplug unused plugs
