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17 Cards in this Set
- Front
- Back
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Gross Primary Productivity
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The overall rate of accumulating biomass through photosynthesis
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Net Primary Productivity
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The accumulation of biomess in ecess of "maintenance costs" (ie. respiration)
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Productivity
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rate of accumulation of biomass
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Pilot Study/ Reconnaissance
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simple study to make observations and decide methods, hypothesis, species, events, questions to be answered
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Exclusion Experiment
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Manipulate experiment so as to exclude a main factor
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4 Steps for Experimentation
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1st: Pilot Study
2nd: Exlusion Experiment (Validate Exp. 1/establish underlying cause of observed effect) 3rd: Validate exp. 1 and 2 at larger scales 4th: Go back and test to see if same result in a different way |
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Plant Productivity
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Producing O2 through photosynthesis and consuming O2 through respiration
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Cage Effect
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animal does behavior that is totally different from nature because stressed from being in cage- uncontrolled variable= not natural
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Supplementation Experiment
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Provide each limiting factor in excess to see what is causing a change/competition
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Benthos
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The collection or organisms living or in sea or lake bottoms; the bottom of a sea or lake
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Periphyton
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Sessile organisms, such as algae and small crustaceans, that live attached to surfaces projecting from the bottom of a freshwater aquatic environment
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Abiotic
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Nonliving factors of an environment
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Biotic
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Living factors of an environment
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Mesocosms
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These are contained pot experiments in a glasshouse that represent an intermediate stage of study, between the single-species tests and the field trials
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Helicopsyche
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Larvae caddislfy that is a grazer taht feeds on alae on rocks
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Uncontrolled Variables
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Variables that are unable to be controlled during an experiment, thus must be taken into account when conclusions are drawn
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Cage Experiments
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Put species into cage so nothing else can get in
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