Outdoor Ed Flashcards

1
Q

Hypothermia

A

A dangerous condition in which the core body temperature drops below 35C

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2
Q

Biodiversity

A

The variety of all life forms, the different plants, animals, and microorganism, the genes they contain; and the ecosystems of which they form part

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3
Q

Community

A

A group of interdependent plants and animals inhabiting the same region and interacting with each other

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4
Q

What are the four types of heat loss

A

Conduction
Convection
Evaporation
Radiation

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5
Q

Conduction

A

Heat passes out of the body directly onto a cooler object, such as the ground an injured person is lying on

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6
Q

Convection

A

Heat rises away from the body into the air. Clothing helps prevent this eg windchill

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7
Q

Evaporation

A

Heat is removed from the body as water of perspiration, evaporate and the skin dries.

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8
Q

Radiation

A

Heat is given off to a cooler environment directly

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9
Q

The base layer

A

Is in direct contact with the skin, for moisture management. Base layer materials do not retain moisture but transport it away from the skin
Eg thermals made from Marino wool and polypropylene

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10
Q

The middle layer

A

The insulation layer. The purpose of the middle layer is to retain body heat. The best way to do this is by creating an area of dead dry air.
Eg down jackets and fleeces

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11
Q

The outer layer

A

Has three main purposes, to protect from the wind, protection from moisture (rain/snow) and getting rid of body moisture
Eg Goretex and eVent

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12
Q

Position as aspect

A

Climate and flora and fauna within environments can differ depending on whether they are found in a northerly or southerly direction. It is important however that they interact with each other
North- sun, warmer, soil is dryer, flora has taller trees, more growth
South- cooler, wetter, flora- lots of ferns, more moss, darker

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13
Q

Geology

A

The scientific study of the origins, history and structure of the earth. The makeup of the earths appearance

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14
Q

Climate

A

The prevailing weather conditions of a region. Temperature variations affect evaporation and the level of moisture in the soil. The widest range of temperatures occur in the dry regions

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15
Q

First aid for hyperthermia

A

Remove wet clothing and replace with dry
If possible try and get them in a dry area as the aim is to make them as warm as possible
Give them heat packs
The first aid method is to place them in a burrito wrap/ hyperthermia wrap.
A tarp is placed on the floor and then the person is wrapped in two sleeping bags on top of the tarp. Then another tarp is place onto of the person

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16
Q

Biodiversity alpine

A
  • Typically vegetated by Heath, herb and grass species and sphagnum bogs
  • snow gums, Baw Baw frog, Pygmy possum, bogong moths
17
Q

Human influence and threat - alpine

A

Ski resorts

Global warming

18
Q

Coastal

A

Areas linking the land and the sea

Constantly changing due to sculpting effects of the wind, rain and waves

19
Q

Distribution -coastal

A

Vic has 2000km of coastland ranging from sheltered bays to rugged eroded cliffs
Approx 123 bays inlets and estuaries which vary in size from 1 square km to 2000 square km

20
Q

Elevation and climate coastal

A

Rainfall from 700 to 1200 millimetres per year

Located in flat landscapes at low altitudes from 0-200 meters above sea level

21
Q

Biodiversity coastal

A

Orange bellied parrot

Wind, salt and natural land instability influences coastal vegetation

22
Q

Coastal human influences

A

More than 85% of Australians live less than 50kms from the coast
Threats comes from urban development and the introduction of weeds and animals which readily adapt to the environment

23
Q

Grasslands

A

Less than 10% of natural tree or shrubs cover

Ecological communities where grass species dominate the area

24
Q

Distribution grasslands

A

Prior to European settlement grasslands covers the plains between the Murray Valley and the Great Dividing range
Today grasslands are found in patches in the north and western parts of the state

25
Q

Elevation and climate grasslands

A

Grasslands are located in flat to gentle undulating lanscapaes
Found at low altitudes with low to medium rainfall 400-1000mm per year

26
Q

Biodiversity grasslands

A

Grasslands are among the most species rich plant communities in Australia
The bust stone curlew is an endangered species

27
Q

Human influence greasslands

A

The land was readily available to settlers and from this an introduction of sheep and cattle increased the degradation
Today less than 1% of Victoria’s native grassland remains intact and these areas are at risk of weed invasion and urbane development

28
Q

Wet Forrest

A

Landscapes with thick dense vegetation in areas of high rainfall
Minimal light and vegetation are at ground level

29
Q

Elevation and climate wet forest

A

Rainfall between 800-1500 mm per year

Environments are found in sheltered gullies at altitudes from 200-1200 meters above sea level

30
Q

Distribution wet forest

A

Found in the souther, central and north east regions of the state
Wilsons prom, Otway ranges, the alps

31
Q

Biodiversity wet forest

A

More species live in wet forests than any other type of ecosystem
Wet forests have high biodiversity due to the large range of habitats created in the many layers of the forest and the warm humid climate
Lee beaded possum

32
Q

Human influence and threat wet forest

A

Wet forest plant distribution can be significantly reduced following burning
Wet forests are the focus of intensive timber harvesting

33
Q

Safety

A

Good preparation and planning
Access to medical help
Complete risk assessment
Access to evacuation points and emergency contingency plans

34
Q

Sustainable interactions

A

Facilities available
Minimal impact strategies
Sensitivity to flora and fauna
Sights of cultural significance