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Sustainability

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45 Terms

1

Sustainability

Using global resources at a rate that allows regeneration without depleting the natural capital

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2

Natural Capital

Planet’s natural resources including renewable or non-renewable resources, e.g., trees, minerals, animal species

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3

Natural Income

Value or goods/services derived from natural capital, growth per year, extraction of natural resources, e.g., timber, carbon sequestration

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4

Replenishment

Restoration of a stock or supply to a former level or condition

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5

Three Pillars of Sustainability

Integrated approach focusing on economic sufficiency, environmental protection, and social well-being

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6

Biodiversity

Different kinds of life within an ecosystem, including organisms, plants, animals, fungi, and microorganisms

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7

Pollution

Addition of a substance or agent to an environment to an extent that normal environmental processes are adversely affected

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8

Point Source Pollution

Discrete sources of contamination that can be represented by a single point on a map and tracked back to the source

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9

Non-Point Source Pollution

More dispersed sources from which pollutants originate and enter the environment

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10

Primary Pollutant

Air pollutant emitted directly from a source

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11

Secondary Pollutant

Arises from primary pollutants undergoing physical and chemical changes in the atmosphere

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12

Acute Pollution Effects

Occur after short, intense exposure, with symptoms experienced within a few hours

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13

Chronic Pollution Effects

Occur after low-level, long-term exposure, with disease symptoms developing over time

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14

Persistent Pollutants

Cannot be broken down by living organisms and accumulate in the food chain

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15

Biodegradable Pollutants

Capable of being broken down by natural biological processes

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16

Availability of Mates

Refers to the presence of potential partners for reproduction within a population.

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17

S Population Curves (Sigmoid Growth Curves)

Graphical representation showing initial rapid growth followed by a slowdown as the carrying capacity is reached.

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18

Lag Phase

Initial stage of population growth with low birth rates due to low population numbers.

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19

Exponential Growth Phase

Phase where the population grows rapidly without limiting factors, favorably abiotic components, and lack of predators or disease.

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20

Transitional Phase

Population growth slows down considerably but continues to grow.

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Stationary Phase

Population growth stabilizes around the carrying capacity, leading to fluctuations.

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22

Producers

Organisms that convert abiotic components into living matter, also known as autotrophs.

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23

Consumers

Organisms that obtain energy and matter by consuming other organisms, known as heterotrophs.

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24

Decomposers

Organisms that obtain nutrients from breaking down dead organic matter, improving soil nutrient capacity.

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25

Trophic Level

Position occupied by an organism in a food chain.

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26

Pyramids of Numbers

Representation of the number of individuals at each trophic level in an ecosystem.

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27

Pyramids of Biomass

Representation of biological mass at each trophic level in an ecosystem at a specific time.

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28

Pyramids of Productivity

Representation of energy flow through trophic levels in a food chain over time.

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29

Primary Productivity

Gain in energy or biomass by producers per unit area per unit time.

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30

Secondary Productivity

Biomass gained by heterotrophic organisms through feeding and absorption.

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31

Maximum Sustainable Yield

Maximum flow of a resource that allows the stock to remain stable over time.

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32

Nutrient Cycles

Processes that involve the movement and transformation of nutrients within ecosystems.

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33

Biomes

Collections of ecosystems sharing similar climatic conditions, categorized into aquatic, forest, grassland, desert, and tundra biomes.

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34

Convectional Rain

Precipitation resulting from the upward movement of warm, moist air in the atmosphere.

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35

Zonation

Arrangement of communities in bands in response to environmental changes over a distance.

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36

Succession

Long-term change in the composition of a community from pioneer to climax community.

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37

R-strategist

Species with fast reproduction, producing many small offspring with little parental care.

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38

K-strategist

Species with slow growth, producing few large offspring with extensive parental care.

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39

R and K selection theory

Natural selection favoring species based on reproductive strategies and survival rates.

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40

Dichotomous key

Stepwise tool for identification with binary choices based on characteristics.

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41

Abiotic factors

Non-living components of ecosystems like temperature, pH, and salinity.

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42

Simpson’s diversity index

Measure of species diversity in an area based on total organisms and individuals of a species.

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43

Lincoln index

Method to estimate population size of motile animals using marking and recapture.

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44

Quadrat sampling

Method to measure population size of non-motile organisms in specific areas.

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45

Soil profile

Vertical section through soil with distinct layers (horizons) showing soil formation processes.

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