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Trophic level

Living in the Environment 16th Ed. : Ch.3 Key Terms

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Environmental Science
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Biology
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Autotroph
Trophic level
Environment

Chapter 3 abiotic Two types of components make up the biosphere and its ecosystems: One type, called abiotic, consists of nonliving components such as water, air, nutrients, rocks, heat, and solar energy. aerobic respiration Producers, consumers, and decomposers use the chemical energy stored in glucose and other organic compounds to fuel their life processes. In most cells this energy is released by aerobic respiration, which uses oxygen to convert glucose (or other organic nutrient molecules) back into carbon dioxide and water. anaerobic respiration, or fermentation Some decomposers get the energy they need by breaking down glucose (or other organic compounds) in the?absence?of oxygen. This form of cellular respiration is called anaerobic respiration, or fermentation.

Chapter 3 Notes

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Environmental Science
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Biology
Ecology
Systems ecology
Primary production
Ecological efficiency
Food web
Ecological pyramid
Trophic level
ecosystem
Terrestrial ecosystem
Photosynthesis
Nutrient cycle
Environment

Chapter 3 Notes Ecosystem Boundaries Biotic and abiotic components of an ecosystem provide the boundaries that separates them from one another Some have a well-defined boundaries: Like a cave Scientist might define a terrestrial ecosystem as the range of a particular species of interest Ecosystems occur in a wide range of sizes Ecosystem Process Each ecosystem interacts with surrounding ecosystems Change in ONE ecosystem can affect the global environment Photosynthesis and Respiration Nearly all of the energy that powers ecosystems comes from the sun Plants, algae and other organisms have the ability to convert the suns solar energy to usable from of energy, these are called producers/autotrophs

Bio112 April 29th

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Biology
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Biogeochemical cycle
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Fisheries
Food web
Energy flow
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Trophic level
Carbon Cycle
Nitrogen cycle
Environment
Bio 112

Bio 112 April 29th, 2013 More on Ecosystems Food webs -Is a branching food chain with complex trophic interactions -Including decomposes (detritevors) Energy Flow through Ecosystems -from one trophic level to the next. Primary production - are photoautotrophs, capturing energy from the sun. Energy flows from these guys through all other levels. Of course some energy will be lost at each level. -light energy converted to chemical energy by autorophs during a given time period. -Gross primary production is the total primary production. -Net primary production is GPP minus energy used by producers (respiration)-only this is available to consumers. NPP is more important then GPP. Secondary production

Chapter 3 section 3 Powerpoint

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Biology
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Ecological pyramid
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Trophic level
Energy flow
Nutrient cycle
Food chain
Detritivore
Environment

Lesson Overview 3.3 Energy Flow in Ecosystems Lesson Overview Energy Flow in Ecosystems THINK ABOUT IT What happens to energy stored in body tissues when one organism eats another? Energy moves from the ?eaten? to the ?eater.? Where it goes from there depends on who eats whom! Lesson Overview Energy Flow in Ecosystems Food Chains and Food Webs How does energy flow through ecosystems? Energy flows through an ecosystem in a one-way stream, from primary producers to various consumers. Lesson Overview Energy Flow in Ecosystems Food Chains A food chain is a series of steps in which organisms transfer energy by eating and being eaten. Food chains can vary in length. An example from the Everglades is shown. Lesson Overview Energy Flow in Ecosystems Food Chains

Ecology Chapter 3 Worksheet Key

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Biology
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Ecological pyramid
Consumer
Autotroph
Energy flow
Food chain
Predation
ecosystem
Plankton
Environment

Bio I Unit 7: Ecology Name KEY 3.1 What Is Ecology? Studying Our Living Planet 1. What is ecology? It is the scientific study of interactions among organisms and between organism and their environment. 2. What does the biosphere contain? It contains all the organisms and physical environments of the Earth. 3. How are human economics and ecology linked? Economics has to do with human ?houses? and interactions based on money and trade. Ecological interactions have to do with nature?s ?houses? and are based on energy and nutrients. Humans depend on ecological processes to provide nutrients that can be bought or traded. 4. Label each level of organization on the diagram.

CH 54 Bio Notes

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Biology
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Primary production
Biomass
Ecological efficiency
Trophic level
Solar Energy
Productivity
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Ecosystem ecology
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Primary productivity aka BIOMASS B/c some ecosystems are better at converting solar energy then others, we calc PP to indicate how efficient a partic ecosys is @ convert solar energy *Expressed as a Biomass/Rate-- The dry mass of vegetation produced per unit time (g/m2/yr) Aka BIOMASS The amt of light energy converted to chemical energy in a given amt of time Gross (Total) Primary Productivity (GPP) Not all of all the chemical energy produced is available to be passed on to primary consumers Autotrophs (primary producers) use some of energy themselves for cellular respiration Total primary productivity of an autroph Total amt of energy fixed by plants Net primary productivity (NPP) [GPP] ? [Energy Used by Autotrophs] = [NPP] Expressed as biomass per square meter/yr

AP Biology Notes on Ecology

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Biological systems
Superorganisms
Systems ecology
Ecosystem
Symbiosis
Abiotic component
Biotic component
Biosphere
Abiotic stress
Outline of ecology
Environment
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Biological oceanography
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Trophic level
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Predation
R/K selection theory
Biological interaction
Ecological succession
Environment
AP Biology; Ecology

UNIT 15 - ECOLOGY List of Terms Ecology: study of interactions of organisms with their environment and with each other Population: group of individuals of one species in one area that can breed and interact with one another Community: all the organisms in one area Ecosystem: All the organisms in an area and abiotic factors in that area Abiotic factors: nonliving, include temperature, water, sunlight, wind, rocks, etc. Biosphere: global ecosystem Biotic potential: max rate at which a population can increase under ideal conditions Influenced by factors like age at which reproduction begins, lifespan during which you can reproduce, # of reproductive periods in lifetime, and the max # of offspring the organism can produce
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