FAUNA is all of the animal life of any particular region or time. The
corresponding term for plants is flora . Flora, fauna and other forms
of life such as fungi are collectively referred to as biota .
Zoologists and paleontologists use fauna to refer to a typical
collection of animals found in a specific time or place, e.g. the
Sonoran Desert fauna" or the "
* 1 Etymology
* 2 Subdivisions
* 3 Treatises
* 3.1 Classic faunas
* 4 See also * 5 References * 6 External links
Australian and New Zealand fauna . This image was likely first published in the first edition (1876–1899) of the Nordisk familjebok .
Cryofauna are animals that live in, or very close to, ice .
Cryptofauna are the fauna that exist in protected or concealed microhabitats .
Infauna are benthic organisms that live within the bottom substratum
of a body of water, especially within the bottom-most oceanic
sediments, rather than on its surface.
Epifauna, also called epibenthos, are aquatic animals that live on the bottom substratum as opposed to within it, that is, the benthic fauna that live on top of the sediment surface at the seafloor...
Macrofauna are benthic or soil organisms which are retained on a 0.5 mm sieve. Studies in the deep sea define macrofauna as animals retained on a 0.3 mm sieve to account for the small size of many of the taxa.
Main article: Megafauna
Main article: Meiobenthos
Meiofauna are small benthic invertebrates that live in both marine and fresh water environments . The term Meiofauna loosely defines a group of organisms by their size, larger than microfauna but smaller than macrofauna, rather than a taxonomic grouping. One environment for meiofauna is between grains of damp sand (see Mystacocarida ).
In practice these are metazoan animals that can pass unharmed through a 0.5 – 1 mm mesh but will be retained by a 30–45 μm mesh, but the exact dimensions will vary from researcher to researcher. Whether an organism passes through a 1 mm mesh also depends upon whether it is alive or dead at the time of sorting.
Main article: Soil mesofauna
Mesofauna are macroscopic soil animals such as arthropods or
nematodes . Mesofauna are extremely diverse; considering just the
Main article: Microfauna
Microfauna are microscopic or very small animals (usually including protozoans and very small animals such as rotifers ).
Other terms include avifauna , which means "bird fauna" and piscifauna (or ichthyofauna ), which means "fish fauna".
* Linnaeus, Carolus .