Short Winged Grebe

Rollandia microptera (Gould 1868)

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Rollandia microptera (Short Winged Grebe) is a species of birds in the family grebes. They are listed as endangered by IUCN. They are found in The Neotropics. They rely on drag powered swimming to move around.

URI: http://eol.org/schema/terms/endangered
Definition: A taxon is Endangered when the best available evidence indicates that it meets any of the \r\ncriteria A to E for Endangered, and it is therefore considered to be facing a very high risk of extinction in the wild.
Source: http://apiv3.iucnredlist.org/api/v3/taxonredirect/22696533

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URI: https://www.wikidata.org/entity/Q217151
Definition: one of the eight terrestrial ecozones constituting the Earth's land surface
Attribution: https://commons.wikimedia.org/wiki/File:Ecozone_Neotropic.svg

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URI: https://eol.org/schema/terms/drag_based_swimming
Definition: Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.

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EOL has data for 21 attributes, including:

Body symmetry
- URI: http://eol.org/schema/terms/body_symmetry
- Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
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bilaterally symmetric
- URI: http://purl.obolibrary.org/obo/PATO_0001324
- Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves
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auditory system
- URI: http://purl.obolibrary.org/obo/UBERON_0016490
- Definition: the sensory system for the sense of hearing
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otoliths
- URI: https://www.wikidata.org/entity/Q591800
- Definition: Inner-ear structure in vertebrates which detects acceleration and may detect acoustic signals
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biogeographic realm
- URI: http://purl.obolibrary.org/obo/GAZ_00000071
- Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
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The Neotropics
- URI: https://www.wikidata.org/entity/Q217151
- Definition: one of the eight terrestrial ecozones constituting the Earth's land surface
- Attribution: https://commons.wikimedia.org/wiki/File:Ecozone_Neotropic.svg
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body mass
- URI: http://purl.obolibrary.org/obo/VT_0001259
- Definition: The amount of matter in the body of an organism.
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706 g
cellularity
- URI: http://purl.obolibrary.org/obo/PATO_0001992
- Definition: An organismal quality inhering in a bearer by virtue of the bearers consisting cells. [ PATOC:GVG ]
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multicellular
- URI: http://purl.obolibrary.org/obo/PATO_0001993
- Definition: A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]
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geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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Bolivia
- URI: http://www.geonames.org/3923057
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habitat
- URI: http://purl.obolibrary.org/obo/RO_0002303
- Definition: x has habitat y if: x is an organism, y is a habitat, and y can sustain and allow the growth of a population of x
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bay
- URI: http://purl.obolibrary.org/obo/ENVO_00000032
- Definition: An area of water bordered by land on three sides.
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habitat
- URI: http://rs.tdwg.org/dwc/terms/habitat
- Definition: A category or description of the habitat in which the Event occurred.
- Comment: Example: "oak savanna", "pre-cordilleran steppe"
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freshwater habitat
- URI: http://purl.obolibrary.org/obo/ENVO_00002037
- Definition: A habitat that is in or on a body of water containing low concentrations of dissolved salts and other total dissolved solids (<0.5 grams dissolved salts per litre).
- Comment: Ontology Description: http://environmentontology.org/ Ontology Source: http://envo.googlecode.com/svn/trunk/src/envo/envo.owl
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locomotion
- URI: http://purl.obolibrary.org/obo/GO_0040011
- Definition: Self-propelled movement of a cell or organism from one location to another.
- Attribution: [database_cross_reference: GOC:dgh]
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drag powered swimming
- URI: https://eol.org/schema/terms/drag_based_swimming
- Definition: Drag swimmers use a cyclic motion where they push water back in a power stroke, and return their limb forward in the return or recovery stroke. When they push water directly backwards, this moves their body forward, but as they return their limbs to the starting position, they push water forward, which will thus pull them back to some degree, and so opposes the direction that the body is heading. This opposing force is called drag. The return-stroke drag causes drag swimmers to employ different strategies than lift swimmers. Reducing drag on the return stroke is essential for optimizing efficiency.
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population trend
- URI: http://eol.org/schema/terms/population_trend
- Definition: i.e., increasing, decreasing, stable, or unknown
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Decreasing
type specimen repository
- URI: http://eol.org/schema/terms/TypeSpecimenRepository
- Definition: The institution that holds a type specimen for a given species. The recommended best practice is to use the identifier in a collections registry such as the Biodiversity Collections Index (http://www.biodiversitycollectionsindex.org/).
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NHMUK
visual system
- URI: http://purl.obolibrary.org/obo/UBERON_0002104
- Definition: The sensory system subserving the sense of vision.
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corneal eyes
- URI: https://eol.org/schema/terms/corneal_eyes
- Definition: Because of the difference in refractive index between air and water (or corneal tissue), a curved cornea is an image-forming lens in its own right. Its focal length is determined by the radius of curvature of the cornea. Many corneal eyes (eg: in land vertebrates) also have lenses, but the lens is flattened and weakened compared with an aquatic lens; most of the refractive power is provided by the cornea. Corneal eyes cannot focus in aquatic habitat.
- Attribution: https://www.britannica.com/science/photoreception/Single-chambered-eyes#ref278820
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Known occurrences, collected specimens and observations of Short-winged Grebe. View this species on GBIF

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