Soil Organisms and Soil Ecology - Cornell University
Transcript of Soil Organisms and Soil Ecology - Cornell University
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Soil Organisms and Soil Ecology
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Macrofauna/flora (>2mm) Eukaryotes
Mesofauna (0.1 – 2 mm) Eubacteria
Microfauna/flora (< 0.1 mm) Archaebacteria
Based on RNA Sequencing (Phylogeny)
Based on Size
Autotrophs
Heterotrophs
Lithotrophs
Methylotrophs
Chemolithotrophs
Based on Energy Source
Primary Producers
Primary Consumers Herbivores
Secondary Consumers Carnivores
Tertiary Consumers Detritivore
Based on Trophic Level
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Classification Based on Trophic Level
Macrofauna/flora (>2mm) Eukaryotes
Mesofauna (0.1 – 2 mm) Eubacteria
Microfauna/flora (< 0.1 mm) Archaebacteria
Based on RNA Sequencing
Based on Size
Autotrophs
Heterotrophs
Lithotrophs
Methylotrophs
Chemolithotrophs
Based on Energy
Primary Producers
Primary Consumers Herbivores
Secondary Consumers Carnivores
Tertiary Consumers Detritivore
Based on Trophic Level
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Organizes are understanding of the system using a very simple ecosystem
structure
and
raises questions into form/function,
ecosystem dynamics and
process oriented relationships in the
soil.
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Classification Based on Size
Macrofauna/flora (>2mm) Eukaryotes
Mesofauna (0.1 – 2 mm) Eubacteria
Microfauna/flora (< 0.1 mm) Archaebacteria
Based on RNA Sequencing
Based on Size
Autotrophs
Heterotrophs
Lithotrophs
Methylotrophs
Chemolithotrophs
Based on Energy
Primary Producers
Primary Consumers Herbivores
Secondary Consumers Carnivores
Tertiary Consumers Detritivore
Based on Trophic Level
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Size Matters!
Bags started with 558 mg
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Classification Based on RNA Sequencing
Eukaryotes
Eubacteria
Archaebacteria
Macrofauna/flora (>2mm) Eukaryotes
Mesofauna (0.1 – 2 mm) Eubacteria
Microfauna/flora (< 0.1 mm) Archaebacteria
Based on RNA Sequencing
Based on Size
Autotrophs
Heterotrophs
Lithotrophs
Methylotrophs
Chemolithotrophs
Based on Energy
Primary Producers
Primary Consumers Herbivores
Secondary Consumers Carnivores
Tertiary Consumers Detritivore
Based on Trophic Level
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Eukaryotes
• Plants
• Fungi
• Animals
• Ciliates
• Flagellates
• Slime molds
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Archaebacteria
Extreme Halophiles – salt
Methanogens
Extreme Thermophiles
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Eubacteria (Bacteria)
Some important and interesting kinds of bacteria:
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Classification Based on Energy Source
Macrofauna/flora (>2mm) Eukaryotes
Mesofauna (0.1 – 2 mm) Eubacteria
Microfauna/flora (< 0.1 mm) Archaebacteria
Based on RNA Sequencing
Based on Size
Autotrophs
Heterotrophs
Lithotrophs
Methylotrophs
Chemolithotrophs
Based on Energy
Primary Producers
Primary Consumers Herbivores
Secondary Consumers Carnivores
Tertiary Consumers Detritivore
Based on Trophic Level
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