What is a landscape's connectivity?
What does a habitat corridor do & why are they beneficial to populations?
- ex. what are flyways?
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degree it facilitates migration & natural processes' flow; connects multiple
habitats, allows gene flow btwn them; major bird migration corridors
What is the nutrient (biogeochemical) cycle?
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continuous cycling of nutrients through biosphere & living organisms
,In the image, fill in the blanks next to each letter.
Not shown in the image:
- fossil (non-replenishable) aquifer: get little/no natural ___________ on a
human ______________, making them non_______________
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A - air, water; B - unsaturated, saturated; C - completely, water; D -
groundwater, flow, stored; E - lower, impermeable; F - upper, lower; G -
percolates, ground; recharge, timescale, renewable
What does an indicator species' presence/absence indicate?
- why are amphibians considered an indicator species?
4 factors reducing amphibian populations:
1. habitat ______/________________
2. increased ______ r___________
3. over_____________
4. _____-___________ predators/competitors
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certain environmental conditions; their high sensitivity to environmental
degradation; loss, fragmentation, UV radiation, hunting, non-native
What revolution was this: using new technologies for rapidly gaining access to more
info globally
(e.g. telephone, radio, internet, automated databases)
a) industrial-medical
,a) agricultural
c) information & globalization
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information & globalization revolution
Example: UofA scientists (connected to non-profit environmental groups) published a
peer-reviewed article showing increased heavy metals downstream of tar sands
operations. Joint AB gov't/industry group (Aquatic Monitoring Program) argues the
pollution is from natural sources.
These may affect the science's credibility:
- the UofA scientists or the AB govt groups might be biased
- we don't know if their observations haven't been verified by others
- we don't know if its claims are consistent w/ existing knowledge
Is this: frontier science, consensus science, or junk science?
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junk
What does nuclear change involve?
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certain isotopes' nuclei changing into nuclei of different isotopes
, Grasslands & agriculture:
- what is rangeland?
- what are riparian zones & what does livestock's aggregation here
cause?
- answer the question shown in the image.
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grasslands supplying vegetation for grazing; strips of vegetation near water
bodies, overgrazing; overgrazing
3 types of extinction:
1. local extinction: only goes extinct in = ?
2. ecological extinction: not enough members exist for the species to = ?
3. biological extinction: no longer found = ?
4. commercial extinction: temporary depletion of = ?
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1 specific area; continue performing its ecological role; anywhere on Earth;
fish stocks
Evidence suggests life developed in 2 phases over the past 4.7B yrs:
1. chemical evolution: development of ___________ molecules, bi_____________, & chemical
_____________ needed to form the 1st _______
2. biological evolution (ie. evolution): change in population's ____________ through
successive _______________
Give this one a try later!
What does a habitat corridor do & why are they beneficial to populations?
- ex. what are flyways?
Give this one a try later!
degree it facilitates migration & natural processes' flow; connects multiple
habitats, allows gene flow btwn them; major bird migration corridors
What is the nutrient (biogeochemical) cycle?
Give this one a try later!
continuous cycling of nutrients through biosphere & living organisms
,In the image, fill in the blanks next to each letter.
Not shown in the image:
- fossil (non-replenishable) aquifer: get little/no natural ___________ on a
human ______________, making them non_______________
Give this one a try later!
A - air, water; B - unsaturated, saturated; C - completely, water; D -
groundwater, flow, stored; E - lower, impermeable; F - upper, lower; G -
percolates, ground; recharge, timescale, renewable
What does an indicator species' presence/absence indicate?
- why are amphibians considered an indicator species?
4 factors reducing amphibian populations:
1. habitat ______/________________
2. increased ______ r___________
3. over_____________
4. _____-___________ predators/competitors
Give this one a try later!
certain environmental conditions; their high sensitivity to environmental
degradation; loss, fragmentation, UV radiation, hunting, non-native
What revolution was this: using new technologies for rapidly gaining access to more
info globally
(e.g. telephone, radio, internet, automated databases)
a) industrial-medical
,a) agricultural
c) information & globalization
Give this one a try later!
information & globalization revolution
Example: UofA scientists (connected to non-profit environmental groups) published a
peer-reviewed article showing increased heavy metals downstream of tar sands
operations. Joint AB gov't/industry group (Aquatic Monitoring Program) argues the
pollution is from natural sources.
These may affect the science's credibility:
- the UofA scientists or the AB govt groups might be biased
- we don't know if their observations haven't been verified by others
- we don't know if its claims are consistent w/ existing knowledge
Is this: frontier science, consensus science, or junk science?
Give this one a try later!
junk
What does nuclear change involve?
Give this one a try later!
certain isotopes' nuclei changing into nuclei of different isotopes
, Grasslands & agriculture:
- what is rangeland?
- what are riparian zones & what does livestock's aggregation here
cause?
- answer the question shown in the image.
Give this one a try later!
grasslands supplying vegetation for grazing; strips of vegetation near water
bodies, overgrazing; overgrazing
3 types of extinction:
1. local extinction: only goes extinct in = ?
2. ecological extinction: not enough members exist for the species to = ?
3. biological extinction: no longer found = ?
4. commercial extinction: temporary depletion of = ?
Give this one a try later!
1 specific area; continue performing its ecological role; anywhere on Earth;
fish stocks
Evidence suggests life developed in 2 phases over the past 4.7B yrs:
1. chemical evolution: development of ___________ molecules, bi_____________, & chemical
_____________ needed to form the 1st _______
2. biological evolution (ie. evolution): change in population's ____________ through
successive _______________
Give this one a try later!
