Physical Description

Diagnostic Description

Description

Size: medium. Plumage: ear tufts placed close together above eyes, either short or long; wings long, narrow; tail long, rounded. Other characters: huge asymmetrical ear openings with opercular skin developed into folds and flaps.
  • Fry, C.H., S. Keith & E.K. Urban (1988). The Birds of Africa, Volume III. Academic Press, London.
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© WoRMS for SMEBD

Source: World Register of Marine Species

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Ecology

Habitat

Depth range based on 6 specimens in 2 taxa.
Water temperature and chemistry ranges based on 5 samples.

Environmental ranges
  Depth range (m): 0 - 0
  Temperature range (°C): 9.458 - 13.104
  Nitrate (umol/L): 2.286 - 8.894
  Salinity (PPS): 31.635 - 35.399
  Oxygen (ml/l): 6.089 - 6.746
  Phosphate (umol/l): 0.273 - 0.577
  Silicate (umol/l): 1.963 - 5.972

Graphical representation

Temperature range (°C): 9.458 - 13.104

Nitrate (umol/L): 2.286 - 8.894

Salinity (PPS): 31.635 - 35.399

Oxygen (ml/l): 6.089 - 6.746

Phosphate (umol/l): 0.273 - 0.577

Silicate (umol/l): 1.963 - 5.972
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Associations

Known prey organisms

Asio Asio) preys on:
Sorex
Rallus
Anseriformes
Charadriiformes
Passeriformes
Microtus
Reithrodontomys
Rattus

Based on studies in:
USA: California (Marine)

This list may not be complete but is based on published studies.
  • R. F. Johnston, Predation by short-eared owls on a Salicornia salt marsh, Wilson Bull. 68(2):91-102, from p. 99 (1956).
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© SPIRE project

Source: SPIRE

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:75
Specimens with Sequences:60
Specimens with Barcodes:59
Species:4
Species With Barcodes:3
Public Records:43
Public Species:3
Public BINs:6
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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Asio

For other uses, see Asio (disambiguation).

Asio is a genus of typical owls, or true owls, in the Strigidae family. The genus Asio contains the eared owls, which are characterised by feather tufts on the head which give the appearance of "ears". This group has representatives over most of the planet, and the short-eared owl is one of the most widespread of all bird species, breeding in Europe, Asia, North and South America, the Caribbean, Hawaii and the Galápagos Islands. Its geographic range extends to all continents except Antarctica and Australia.

These are medium-sized owls, 30–46 centimetres (12–18 in) in length with 80–103 centimetres (31–41 in) wingspans. They are long winged and have the characteristic facial disc.

The two northern species are partially migratory, moving south in winter from the northern parts of their range, or wandering nomadically in poor vole years in search of better food supplies. Tropical Asio owls are largely sedentary.

Asio owls are mainly nocturnal, but short-eared owls are also crepuscular. Most species nest on the ground, but the long-eared owl, Asio otus, nests in the old stick nests of crows, ravens and magpies (family Corvidae) and various hawks.

These owls hunt over open fields or grasslands, taking mainly rodents, other small mammals and some birds.

Species[edit]

Two fossil species are recognized nowadays:

  • Asio brevipes (Glenns Ferry Late Pliocene of Hagerman, USA)
  • Asio priscus (Late Pliocene of Santa Rosa Island, USA)

The supposed Late Eocene/Early Oligocene eared owl "Asio" henrici has been recognized as a member of the fossil barn-owl genus Selenornis. "Asio" pygmaeus (often misspelt pigmaeus) cannot be assigned to a genus without restudy of the material. "Asio" collongensis (Middle Miocene of Vieux-Collonges, France) is now placed in the genus Alasio.(Mlíkovský 2002)

References[edit]

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Source: Wikipedia

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