ESS - Unit 1

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Ecologist

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55 Terms

1

Ecologist

believe that the planet has limited resources and that people should not use them for personal gain. Believes humans have to adapt and find a way to live in harmony with the Earth.

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Cornucopians

believe the complete opposite of an Ecologist. They think the planet has endless resources that should be manipulated to benefit humankind.

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3

inputs

Everything around us affects our opinions, the decisions we make and how we live our lives.

  • culture, education, science, media, etc.


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4

Processes

Once we have the inputs we can start processing them. assimilation of knowledge, thinking and evaluating.

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5

output

Once the inputs are there and the information has been processed the answers are available, the choices and decisions can be made, and perspectives and viewpoints can be formed

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6

Preservationists

An individual who advocates for the preservation of land, and its resources in pristine untouched conditions.

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7

John Muir

founded the Sierra Club. A major preservation organization that focused on reducing pollution and protecting natural beautiful spaces, by creating National Parks.

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Henry David Thoreau

published the book Walden, which was based on his experience of a simplistic lifestyle. He was living “intimately with nature”

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9

Conservationists

They weren’t conserving the environment for its intrinsic value, rather they worked on the value of the goods and services it could provide.

  • Emphasized the sustainable use of the environment and the management of its resources to allow further development

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10

Intrinsic value

the idea that something can be of value in and of itself and not because it is of any use to humanity.

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Instrumental value:

Something is valued because it is a means to an end, it gives you something tangible.

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12

Ecocentric

Propose self-reliance, self-restraint and minimal disturbance of the natural processes to achieve sustainability for the whole earth. (Nature-Centered)

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Deep ecologist

someone who is a deep ecologist is Ecocentric and believes that nature has intrinsic values in and of itself. (No development)

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14

Self-reliance soft ecologist

Small-scale development Community identity that keeps development in check. (mostly ecocentric but has some anthropocentric aspects)

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15

Anthropocentric

approach in which people manage their environment and themselves with the help of independent regulatory authorities.

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Environmental managers

Natural resources and human population need to be managed. (mostly anthropocentric but has some technocentric aspects)

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18

Technocentric

Science will find alternative resources and the market economy can continue unheeded. Therefore, they believe that they can use, and destroy the environment.

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19

Cornucopians

believe that they can carry on with development because technology will solve any problems that arise.

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20

Holistic worldview

there should be minimal disturbances of natural processes, and that bio-rights (of animals or the environment) should be respected

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21

Ecocentric society

is where humans are part of nature rather than in control of it. Form global citizenship where there is sustainability for the whole earth

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22

Systems

Set of interrelated parts and the connection between them that unites them to form a complex whole and produces emergent properties

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23

Ecological systems

Biological community consisting of all living organisms, with non-living components interacting with each other

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Social systems:

Man-maid systems

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25

what are the 2 types of systems

open, closed and isolated

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26

Open System

exchanges matter and energy with its surroundings

<p>exchanges matter and energy with its surroundings</p>
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Closed systems

Exchanges energy but doesn’t exchange matter with its surroundings

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Isolated Systems

exchanges neither energy nor matter with its surroundings (imaginary construct since nothing in nature is completely isolated)

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Store of matter

Plants, and animals—> store energy and matter

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Store of Energy

Carbon bonds = energy storage

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Transfer

moves energy or matter from one place to another with 0 change 

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Transformations

moves energy and matter causing change in the process

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Model

a simplified version of reality that tells a story about what happens in the natural world

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Simulations

shows a model in action and provides information about how something will respond over time

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Advatages of model

  • Can study things that are either too small or too large for researchers to deal with

  • A simplified version of the real-world example

  • Helps illustrate complex concepts and formulates hypotheses

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Disadvantages of a model

  • Maybe misleading and affect our understanding

  • Lack of detail → predicts may not be accurate

  • maybe oversimplified

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37

Thermodynamics

Branch of physics that studies heat and temperature and how that relates to energy and work

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first law of thermodynamics

States that energy can’t be created or destroyed

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second law of thermodynamics

the total entropy of a system either increases or remains constant in any spontaneous process; it never decreases.

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40

Bioaccumulation

process of collecting chemicals in an organism that happens if the rate of intake exceeds the rate of excretion

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Trophic levels

 levels that a species occupies in the food web 

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Entropy

a measure of the disorder of a system which describes how much energy is not available to do work.

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negative feedback

promotes stability in a system. It reverses the change and returns the system to its original state

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positive feedback

amplifies change in system + keeps it going in the same direction

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Equilibria

if everything is in balance (equilibrium)

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Static state

 system remains constant over a long period of time

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48

Steady state

has many small changes over a shorter period of time

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Stability

the ability of an ecosystem to remain balanced

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Resistance

An ecosystem continues to function during disturbance

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51

Resilience

the ability to recover after a disturbance

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52

Renewable

replaced as fast as it's used

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53

Natural capital

natural resources that produce natural income of goods and services

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Goods

marketable commodities that can be exploited by humans

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Services

natural processes that provide benefits for humans

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