microfauna

Microscopic animal life

Microfauna refers to tiny animals, typically those invisible or barely visible to the naked eye.

The term usually designates microscopic organisms like protozoa, nematodes, and rotifers that live in soil, water, or sediment, playing crucial roles in ecosystems by breaking down organic matter and cycling nutrients.

In scientific contexts, microfauna may also refer to small fossils used to date geological formations.

Soil microfauna help maintain healthy growing conditions for plants.

organisms

protozoa

Single-celled eukaryotic organisms

  • nematodesCylindrical unsegmented worms
  • tardigradesMicroscopic invertebrates, extremely resilient
  • mitesMinuscule parasitic arachnids

springtails · amoebae · flagellates · copepods · paramecium · euglena · volvox · microarthropods · zooplankton · water bears

soil

nematodes

Cylindrical unsegmented worms

tardigrades · earthworms · decomposers · detritivores · humus · bioindicators · soil health · mineralization · burrowing · organic matter

aquatic

zooplankton

Drifting aquatic microorganisms

benthic · plankton · freshwater · marine · sediment · detritus · filter feeders · larval stages · nauplii

ecology

food web

Interconnected predator-prey relationships

predation · detritivores · energy flow · ecological niche · bioindicators · keystone species · soil ecosystem · habitat · biodiversity

study

microscopy

Technique using powerful lenses

taxonomy · morphology · enumeration · soil analysis · classification · specimen · magnification · petri dish · culture · observation

Opposites
size scale

microfaunamegafauna

Species over 44 kilograms

macrofauna · megamammals · large mammals · whales · elephants

biological domain

microfaunamicroflora

Microscopic organisms inhabiting environments

microalgae

Family

fauna, micro, microscopic, microbes, microorganism, megafauna, microclimate, microbiology, microhabitat

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