Natural Resources Conservation Service

Soils

United States Department of Agriculture

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Soil Biology Primer Photo Gallery

Browse and download images used in the Soil Biology Primer. Please contact the Soil and Water Conservation Society at pubs@swcs.org for permission to use copyrighted (credited) images used throughout the Soil Biology Primer.

Photo Gallery

Click a photo below to see an enlarged version:

Title:	Soil Biology Primer cover
Caption:	Soil Biology Primer cover
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Soil organisms living within a soil aggregate

Title:	Soil organisms living within a soil aggregate
Caption:	Soil organisms living within a soil aggregate
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Title:	The Soil Food Web
Caption:	The Soil Food Web
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Title:	Soil Food Web Glossary
Caption:	Soil Food Web Glossary
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Title:	Functions of Soil Organisms
Caption:	Functions of Soil Organisms
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Title:	Immature Oribatid Mites
Caption:	Immature Oribatid Mites
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Title:	Components of Soil Organic Matter
Caption:	Components of Soil Organic Matter
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Title:	Microbial Biomass Decreases with Depth
Caption:	Microbial Biomass Decreases with Depth
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Title:	Bacteria at Root Tip
Caption:	Bacteria at Root Tip
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Title:	Seasonal Microbial Activity
Caption:	Seasonal Microbial Activity
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Biomass of Soil Organisms in Four Ecosystems

Title:	Biomass of Soil Organisms in Four Ecosystems
Caption:	Biomass of Soil Organisms in Four Ecosystems
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Title:	Typical Numbers of Soil Organisms
Caption:	Typical Numbers of Soil Organisms
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Title:	A Complex Food Web
Caption:	A Complex Food Web
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Title:	Microscopic bacteria
Caption:	Microscopic bacteria
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Title:	Bacteria Dot Fungal Hyphae
Caption:	Bacteria Dot Fungal Hyphae
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Title:	Rhizobium bacteria nodules
Caption:	Rhizobium bacteria nodules
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Title:	Actinomycetes
Caption:	Actinomycetes
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Title:	Mycorrhizal Structure and Fungal Hyphae
Caption:	Mycorrhizal Structure and Fungal Hyphae
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Title:	Fungus Decomposing Leaf Veins
Caption:	Fungus Decomposing Leaf Veins
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Title:	Ectomycorrhizae Fungi
Caption:	Ectomycorrhizae Fungi
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Title:	Vesicular-arbuscular Mycorrhizal Fungus
Caption:	Vesicular-arbuscular Mycorrhizal Fungus
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Title:	Arid Rangeland System
Caption:	Arid Rangeland System
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Title:	Basidiomycete Fungi Mushroom
Caption:	Basidiomycete Fungi Mushroom
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Mycorrhizal Fungi Link Root to Soil Particles

Title:	Mycorrhizal Fungi Link Root to Soil Particles
Caption:	Mycorrhizal Fungi Link Root to Soil Particles
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Title:	Protozoa Feed on Bacteria
Caption:	Protozoa Feed on Bacteria
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Title:	Bacteria Ingested by an Amoeba
Caption:	Bacteria Ingested by an Amoeba
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Title:	Flagellate Protozoa
Caption:	Flagellate Protozoa
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Ciliates are the largest of the protozoa and the least numerous.

Title:	Ciliates
Caption:	Ciliates
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Title:	Mineralization and Immobilization
Caption:	Mineralization and Immobilization
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Title:	Fungi-eating Protozoa
Caption:	Fungi-eating Protozoa
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Title:	Beneficial Nematodes
Caption:	Beneficial Nematodes
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Title:	Predatory Nematode
Caption:	Predatory Nematode
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Title:	Fungal-feeding Nematode
Caption:	Fungal-feeding Nematode
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Title:	Bacterial-feeding Nematode
Caption:	Bacterial-feeding Nematode
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Title:	Lesion Nematode
Caption:	Lesion Nematode
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Title:	Root-feeding Nematode
Caption:	Root-feeding Nematode
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Title:	Microscopic View of Mites
Caption:	Microscopic View of Mites
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Title:	Millipedes are Shredders
Caption:	Millipedes are Shredders
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Title:	Sowbug
Caption:	Sowbug
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Title:	Spider - Walckenaera acuminata
Caption:	Spider - Walckenaera acuminata
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Title:	Wolf-spider
Caption:	Wolf-spider
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Title:	Pseudoscorpion
Caption:	Pseudoscorpion
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Title:	Centipede
Caption:	Centipede
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Title:	Predatory Mite
Caption:	Predatory Mite
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Title:	Tiger Beetle
Caption:	Tiger Beetle
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Title:	Rugose Harvester Ants
Caption:	Rugose Harvester Ants
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Title:	Symphylan Feeds on Plant Roots
Caption:	Symphylan Feeds on Plant Roots
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Title:	Fungal-feeding Springtail
Caption:	Fungal-feeding Springtail
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Title:	Oribatid turtle-mite
Caption:	Oribatid turtle-mite
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Title:	Springtail
Caption:	Springtail
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Title:	Earthworms
Caption:	Earthworms
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Corn Leaf Pulled into Night Crawler Burrow

Title:	Corn Leaf Pulled into Night Crawler Burrow
Caption:	Corn Leaf Pulled into Night Crawler Burrow
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Title:	Earthworm Burrow with Organic Matter
Caption:	Earthworm Burrow with Organic Matter
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Title:	Vertical Earthworm Burrow
Caption:	Vertical Earthworm Burrow
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Title:	Earthworm Burrow graphic
Caption:	Earthworm Burrow graphic
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Title:	Earthworm Casts
Caption:	Earthworm Casts
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Title:	Earthworm Burrow Crusted Soil Surface
Caption:	Earthworm Burrow Crusted Soil Surface
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Title:	Earthworm Burrow Entrance
Caption:	Earthworm Burrow Entrance
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Title:	Earthworms Mating
Caption:	Earthworms Mating
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Title:	Earthworm Cocoons
Caption:	Earthworm Cocoons
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