3- Investigating outdoor environments Flashcards
biodiversity definition
the number and variety of organisms found within a specified area
factors affecting outdoor environments list and explain (3)
Geology- the type of rocks and soil, topography. the study of the history, origin and structure of the land.
Climate- weather, rain, daylight hours, wind, evaporation etc. affects the flora and fauna in the environment.
Position and aspect- shade, moisture, the temperature on different sides of slopes.
types of ecosystems in Victoria (9)
pick one and explain distribution, elevation/climate, biodiversity and human influence/threats
alpine, coastal, marine, wetlands, grassland, dry forest, wet forest/rain forest, aird and heathland.
recreational users understanding of specific outdoor environments define and example
recreational users must have knowledge and understanding of unique features of the environment and how their recreational activity my be influenced, to safely and sustainable participate.
cross country skiing- snow conditions
kayaker- flat lake vs river current
essential knowledge for recreation list a few
- planning and prep
- acess and evacuation
- facilities available
- sites of significance
- sensitivities of flora and fauna
- appropriate equipment
- drinking water
- weather
- fire restrictions
- mobile coverage
- medical help
- local knowledge
- codes of conduct
- ## minimal impact strategies
what is the biosphere
a shell all around the earth that includes all forms of life and their interactions, includes the atmosphere (gasses), hydrosphere (water) and lithosphere (land).
components of an ecosystem
organism- individual living things
species- a group of organisms of the same type
population- same species living together
community- populations of different species living togeather
outdoor environment definition
environments that have had minimal human influences but may also include those that have had human infuence
biotic definition
a living thing
abiotic definition
non living feature
biogeochemical definition and 3 examples
the cycle in with simple substances and chemicals are transferred between living things and the environment. carbon-oxygen, nitrogen and water cycles
carbon-oxygen cycle explain
photosynthesis- plants absorb CO2 from the atmosphere, and release oxygen. CO2 is passed through the food chain.
respiration- animals breathing in O and releasing CO2
combustion- burning fossil fuels and volcanic eruptions.
decomposition- elements are released back into the environment from dead stuff.
Nitrogen cycle explain
nitrogen passes successively from air to soil to organisms and back to air or soil. plants get nitrogen from the soil, animals eat plants, animal waste and die bacteria put nitrogen back in the soil.
water cycle explain
transpiration- moisture from plant leaves condensation- gas to liquid in clouds precipitation- rain, snow, hail etc. infiltration- absorbed into the soil runoff- lakes, rivers, puddles evaporation- liquid to gas in the air powered by the sun
food chains and webs explain
transfer of food and energy from the sun- producers - herbivores - carnivores. each component obtains energy from the previous link. trophic levels- decomposer, producer, primary, secondary and tertiary consumers.