Sac 1 Unit 2 Flashcards
Hypothermia
A dangerous condition in which the core body temperature drops below 35°c.
Biodiversity
The variety of all life forms, the different plants, animals and microorganisms. The genes they contain, and the ecosystems in which they form a part.
Community
A group of interdependent plants and animals inhabiting the same region interacting with each other.
Geology
Geology is the scientific study of the origin, history and structure of the earth.
Climate
Climate is the prevailing weather conditions of a region.
Position and aspect
Geographical location is an important determinant in the development of environment types.
Southerly aspect
Will typically have more shade greater levels of soil moisture and lower temperatures. Also tend to grow ferns
Northerly aspect
Usually had dryer soils, warmer temperatures and potentially quite different vegetation
Alpine environment:
Biodiversity and common flora and fauna -
Human influence and threats -
Plants and animals have evolved deal with short growing season and harsh conditions.
Snow gums, Baw baw frog, mountain Pygmy possum, bogong moths.
Global warming
Ski resorts
Coastal:
Environment-
Distribution-
Elevation & climate-
Biodiversity & flora and fauna-
Human influence & threats-
Consists on linking areas linking the land and sea.
Constantly changing due to sculpting effects of wind, rain and waves.
2000km for coastline.
Ranging from sheltered bay inlets to rugged eroded cliffs.
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Low altitudes from 0-200 above sea level.
Rainfall averages from 700-1200mm per year
Birds are most common, orange bellied parrot.
Grasses, herbs such as moonah and tea trees.
Urban development.
Rising sea levels.
Grasslands:
Environment-
Distribution-
Elevation & climate-
Biodiversity & flora and fauna-
Human influence & threats-
Grass species dominate area.
Less than 10% natural tree or shrub cover.
Used to cover plains between the murry valley & great dividing range.
Today grasslands are found in small patches across northern and western parts of the state.
Low altitudes below 700m.
Low to medium rainfall areas for 400-100mm per year
Bush stone curlew is endangered
Contains many grass species like wallaby grasses.
Most endangered environment.
Introduction of sheep and cattle increased degradation
Wet forest/ rainforest
Environment-
Distribution-
Elevation & climate-
Biodiversity & flora and fauna-
Human influence & threats-
Thick, dense vegetation in areas of high rainfall.
Tall trees grow close together forming a canopy.
Found in the southern, central & northeast regions of the state.
Places such as east gippsland, wilsons promontory.
Altitudes ranging from 200-1200m above sea level.
Rainfall between 800-1500mm per year
More species live here than any other ecosystem.
Dominated by canopy
FIND ENDANGERED SPECIE
timber harvesting
Damage due to burning of coupes
Why should/do outdoor adventurers have detailed understandings for the environments they visit?
Adventurers should have a deep understanding about the environment they are visiting as they can cause destruction or problems the environment or themselves. For example if a swimmer who ventures into a surfer area without having an understanding of rips may find themselves caught in a swell and endanger themselves. Whereas if a hiker did not know the damage of cinnamon fungus can do to native trees then they may not take proper precautions and wash down hiking gear or tents and so on
Conduction
Heat passes directly through the body into a cooler object such as the ground the person is lying on.
Convection
Heat rises away from the body into air, for example if I were to stands in my bathers on a cool day heat wouldn’t be retained in my body as I would be exposed.