Predation II S10

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Unformatted text preview: Click to edit Master subtitle style 3/28/10 Pr edation I I BIOL/BOT 160 – Ecology 3/28/10 Famous Pr edator – Pr ey Gause 1934 Populatio n size Tim e Photos by Marcel Holyoak Didinium nasutum PREDATOR Paramecium caudatum PREY P. caudatu m D. nasutu m ALL DIED! 3/28/10 Famous Pr edator – Pr ey Gause 1934 Allowed immigration of prey Populatio n size Tim e Photos by Marcel Holyoak Didinium nasutum PREDATOR Paramecium caudatum PREY P. caudatu m D. nasutu m BOTH SURVIVED! 3/28/10 Famous Pr edator – Pr ey Gause 1934 Sediment in bottom Populatio n size Tim e Photos by Marcel Holyoak Didinium nasutum PREDATOR Paramecium caudatum PREY P. caudatu m D. nasutu m Prey survived Predator died! 3/28/10 What did the sediment Provided a refuge that would allow the population of Paramecium caudatum to increase without having the predator http://www.gov.im/lib/images/iomfinance/landscapes/refuge.jpg 3/28/10 Rosensweig and With refuge In essence, the predator becomes extremely inefficient NPr NPr ed KPr ey KPr ed Predat or always dies 3/28/10 Rosensweig and With a partial refuge A certain amount of the prey population will...
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This note was uploaded on 09/08/2010 for the course BIOL 160 at San Jose State.

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Predation II S10 - Click to edit Master subtitle style...

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