dcsimg

Glossary of ALL Terms for Data on EOL

u

ultramafic hydrothermal vent biome
http://purl.obolibrary.org/obo/ENVO_01000053
A marine ultramafic hydrothermal vent biome comprises regions of themarine hydrothermal vent biome hosted on ultramafic (also referred to as ultrabasic) rocks. Ultramafic rocks are igneous and meta-igneous rocks with very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content). The Earth's mantle is composed of ultramafic rocks.
ultramafic lava
http://purl.obolibrary.org/obo/ENVO_01000235
ultraoligotrophic alpine freshwater lake
http://eol.org/schema/terms/ultraoligotrophicAlpineFreshwaterLake
ultraoligotrophic freshwater lake
http://eol.org/schema/terms/ultraoligotrophicFreshwaterLake
umbrella
http://purl.obolibrary.org/obo/ENVO_02000052
A canopy designed to protect against precipitation or sunlight.
umbrisol
http://purl.obolibrary.org/obo/ENVO_00002253
Umbrisols are soils in which organic matter has accumulated within the mineral surface soil (in most cases with low base saturation) to the extent that it significantly affects the behaviour and utilization of the soil.
uncertainty (+/-)
http://semanticscience.org/resource/SIO_000769
The uncertainty value (margin of error) of a measurement is a range of values likely to enclose the true value.
uncommon
http://eol.org/schema/terms/uncommon
Common species and uncommon species are designations used in ecology to describe the population status of a species. Commonness is closely related to abundance. Abundance refers to the frequency with which a species is found in controlled samples; in contrast, species are defined as common or uncommon based on their overall presence in the environment. A species may be locally abundant without being common.
https://en.wikipedia.org/wiki/Common_species
unconfirmed holotype
http://eol.org/schema/terms/unconfirmedHolotype
A specimen that may be a holotype, but its type status has not yet been confirmed.
unconfirmed lectotype
http://eol.org/schema/terms/unconfirmedLectotype
A specimen that may be a lectotype, but its type status has not yet been confirmed.
unconfirmed paratype
http://eol.org/schema/terms/unconfirmedParatype
A specimen that may be a paratype, but its type status has not yet been confirmed.
unconfirmed syntype
http://eol.org/schema/terms/unconfirmedSyntype
A specimen that may be a syntype, but its type status has not yet been confirmed.
unconfirmed type
http://eol.org/schema/terms/unconfirmedType
A specimen that may be a type, but its type status has not yet been confirmed.
undecanoic acid
http://purl.obolibrary.org/obo/CHEBI_32368
underground
http://eol.org/schema/terms/underground
underground irrigation canal
http://purl.obolibrary.org/obo/ENVO_00000505
A gently inclined underground tunnel bringing water for irrigation from an aquifer.
underground lake
http://purl.obolibrary.org/obo/ENVO_00000058
A lake which is formed under the surface of the Earth. Such a lake may be associated with caves and aquifers and springs.
underground physiographic feature
http://purl.obolibrary.org/obo/ENVO_00002184
underground river
http://purl.obolibrary.org/obo/ENVO_00000059
A river that is under the surface of the Earth.
underground stream
http://purl.obolibrary.org/obo/ENVO_00000060
A stream that is under the surface of the Earth.
underground water
http://purl.obolibrary.org/obo/ENVO_00005792
underground water body
http://purl.obolibrary.org/obo/ENVO_00000061
A geographical feature associated with water that is under the surface of the earth.
undersea feature
http://purl.obolibrary.org/obo/ENVO_00000104
undescribed marine species present in museum collections
http://eol.org/schema/terms/UndescribedSpeciesInMuseumCollections
"marine species in this clade which are currently represented in specimen collections (estimate) (Appeltans et al. 2012. The Magnitude of Global Marine Species Diversity. Current Biology 22, 2189–2202. http://dx.doi.org/10.1016/j.cub.2012.09.036)"
undiscovered marine morphospecies
http://eol.org/schema/terms/UndiscoveredMorphospecies
unsampled and undiscovered marine morphospecies in this clade (estimate) (Appeltans et al. 2012. The Magnitude of Global Marine Species Diversity. Current Biology 22, 2189–2202. http://dx.doi.org/10.1016/j.cub.2012.09.036)
unknown
http://eol.org/schema/terms/unknown
This statement may be true or false; the answer to this question is unknown.
up
https://www.wikidata.org/entity/Q15332375
upland soil
http://purl.obolibrary.org/obo/ENVO_00005786
upper confidence limit
http://purl.obolibrary.org/obo/STATO_0000314
upper confidence limit is a data item which is a largest value bounding a confidence interval
http://bioportal.bioontology.org/ontologies/STATO/
Upper Cretaceous Epoch
http://resource.geosciml.org/classifier/ics/ischart/UpperCretaceous
Upper Devonian Epoch
http://resource.geosciml.org/classifier/ics/ischart/UpperDevonian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Upper Jurassic Epoch
http://resource.geosciml.org/classifier/ics/ischart/UpperJurassic
Upper Ordovician Epoch
http://resource.geosciml.org/classifier/ics/ischart/UpperOrdovician
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Upper Pleistocene Age
http://resource.geosciml.org/classifier/ics/ischart/UpperPleistocene
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Upper Triassic Epoch
http://resource.geosciml.org/classifier/ics/ischart/UpperTriassic
upper-level epifaunal
http://eol.org/schema/terms/upperEpifaunal
Organism living on the surface of the substratum on rocks or biogenic substrates a considerable distance above the seafloor.
upwelling
http://purl.obolibrary.org/obo/ENVO_01000005
An oceanographic feature that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually nutrient-deplete surface water.
urban biome
http://purl.obolibrary.org/obo/ENVO_01000249
An urban biome is a dense settlement biome which has been urbanised.
urea enriched soil
http://purl.obolibrary.org/obo/ENVO_00005753
uric acid
http://purl.obolibrary.org/obo/CHEBI_27226
An oxopurine that is the final oxidation product of purine metabolism.
urine
http://purl.obolibrary.org/obo/ENVO_00002047
Urine is a liquid excreta containing water and waste products made by the kidneys, stored in the bladder, and leaves the body through the urethra.