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26 Cards in this Set
- Front
- Back
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Mary Power
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Trophic cascade study. What is causing algae growth in some trout streams? Exclosure and enclosure to determine a top down effect.
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Elton
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Elton: Trophic classification, numbers biomass or energy at each level. Suggests transfer of energy, because this is never efficient 100% there can only be so many levels.
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Connel and Slayter
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Connel and Slayter: Mechanisms that drive succession
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Jane Lubchenco
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Jane Lubchenco: Studied keystone speicse Enteromorpha and Chondrus
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Sousa
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Sousa: Algal communities on intertidal boulders. Those with intermediate disturbances show the greatest diversity.
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Simberloff
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Simberloff: Surveyed several mangrove islands to support pure area affect on increasing diversity.
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Diamond
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Diamond: observations of turnover by surveying birds.
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Robert Paine
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Removed top predator to examine role in community
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Weihar and Keddy
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20 species in 120 microcosms to see if distinct communities created
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Whittikar
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Gradient analysis: measure abundance of species along environmental gradient
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Gleason
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Each species responds to environment independendlty of speices
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Clements
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Community unit concept (holistic)
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Holling
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Pioneering studies on functional responses to an increase in prey density
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Errington
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Predators often remove surplus that would die anyways
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Huffaker
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Studied predation by addition of spatial heterogeneity and temporal refuge to gaussian system
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Connel
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Spatial distribution of 2 species of barnacles. C kept out of mid intertidal by B via CE.
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Gause
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Principle on competitive exclusion. Studied predation and created a simple system of it
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Tansley
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Ex of competition using 2 types of bedstaw in their home soils to show that one species will interfere with other
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Frank
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Population regulation of daphnia
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Pearl and Reed
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Logistic equation
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Emlen and Oring
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how does polygyny develop
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Grime
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Stress and Disturbance - R, K and S species
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Macarthur and Wilson
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Populations of species on islands - R and K selected
Macarthurs warblers - resource partitioning Number of species is a balance between immigration and extinction |
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Hutchinson
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Copepodology for the Ornothologist - to show LH strategies
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Southwood
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How to habitats vary in time and space?
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Reznick and Endler
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Guppies in trinidad to show LH strategies.
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