Ecological Footprints- Unit 3

Question 1

Cans Seurat,

Answer 1

depcits aluminum cans to mimic sunday afternnon on the island of grande jatte

Question 2

Sustainability

Answer 2

The capability to practice an action over some period of time

Question 3

Ecology

Answer 3

scientific study of organism-organism and organism-environment interactions. Sheds some light on sustainability in terms of population and habitiat

Question 4

Carrying capacity (K)

Answer 4

Number of organisms of a particular species a particular habitat can support without being degraded

Question 5

Population size

Answer 5

N

Question 6

If N is less than K

Answer 6

Organisms are doing little to no damage to habitate and population is ok. Smaller size relative to K is better for both population and habitat

Can’t be too low, like 0!

Question 7

If n is greater than k

Answer 7

Organisms are damaging habitat and population with decline.
The more population size exceeds K, the worse it is for an organisms population and habitats ability to support organism

Question 8

Humans K

Answer 8

Our k is unknown. But depands on population size and per capita resource use. (footprint

Question 9

K selected species

Answer 9

S Shaped population growth curve. Species oscillate around K before settling on it. Christmas tree

Few offspring, long lived, extensive parental care

Question 10

r selected species

Answer 10

Rapid population growth followed by major crashes. Weeds or pests

J Shaped population growth curve

Short lvied, large number of offspring, no parental care

Question 11

Are humans K?

Answer 11

We have the pre crash of R selected growth curve.

How long can we maintain growth without crash?
If there is a crash what sort of crash will it be>

Question 12

New world

Answer 12

Abundance of natural resources, fish, game, trees, water. Old world had degraded this

Question 13

John Rowan

Answer 13

First comment to warn of sustainabiltiyt

Question 14

Old world

Answer 14

By 1000 AD Europeans had depleated freshwater fish through overharvesting and pollution. So switced to marine fish

Cods were ideal because could be preserved with drying. Cod brough fisherman to North American coast before colonization

Question 15

Gold rush

Answer 15

Major environmental disaster. Abundant resources never appear to require wise use.

Question 16

Salmon

Answer 16

Used to be plentiful and massive, could just pitchfork them.

Question 17

Crayfish

Answer 17

Mid 19th century California they supported sea markets.
By 20th century they were extirpated.

Question 18

Best sustainable freshwater

Answer 18

Crawfish and catfish if they are US prodcued

Question 19

Oysters

Answer 19

in 1890- 25% of population worked in 5 million industry.

Now 1% of what they used to be in population size.

Question 20

Huxley and cod

Answer 20

Believed cod fishery was inexhaustible.

He was wrong because of improvements to fishing tech. Before the were labor intensive

No market rewards individuals for leaving fish, so we built more boats and more people to get as much fish as we could.

Didn’t expect.
General tech advances (refrigeration, transport.)
Improved standards of living (1)
Greatly increased population (1 and 2)

Question 21

Pearl Rush

Answer 21

Mussels gone in 2 years since word spread.
By the time pearl craze peaked, mussels were so rapidly and overharvested. Entire beds were elminated in mississippi

Used to be 1 in 100 clams, now 1 in 10000

Native americans were not linked to extictions

Question 22

Habitat degradation

Answer 22

Organisms degrade habitat must find new habitat, decline in N, or both.

Question 23

Status quo

Answer 23

Decide not to do anything represents a decision

Question 24

change

Answer 24

A variety of top-down (centralized policy-making) and bottom-up (grass roots appraocehs