dcsimg

Glossary of ALL Terms for Data on EOL

m

m
http://purl.obolibrary.org/obo/UO_0000008
Meters. A length unit which is equal to the length of the path traveled by light in vacuum during a time interval of 1/299 792 458 of a second.
m^2
http://purl.obolibrary.org/obo/UO_0000080
An area unit which is equal to an area enclosed by a square with sides each 1 meter long
maar
http://purl.obolibrary.org/obo/ENVO_00000245
A broad, low relief crater that results from a phreatic eruption or explosion caused by groundwater contact with hot lava or magma. The maar typically fills with water to form a relatively shallow crater lake.
Maastrichtian Age
http://resource.geosciml.org/classifier/ics/ischart/Maastrichtian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
machair
http://purl.obolibrary.org/obo/ENVO_00000417
A fertile low-lying raised beach found on the some of the coastlines of Ireland and Scotland, in particular in the Outer Hebrides.
macroalga
http://purl.obolibrary.org/obo/OMIT_0013523
macroscopic, multicellular, marine algae
https://en.wikipedia.org/wiki/Seaweed
maelstrom
http://purl.obolibrary.org/obo/ENVO_00000442
A very powerful whirlpool.
mafic lava
http://purl.obolibrary.org/obo/ENVO_01000234
magnesium (Mg)
http://purl.obolibrary.org/obo/CHEBI_25107
male
http://purl.obolibrary.org/obo/PATO_0000384
A biological sex quality inhering in an individual or a population whose sex organs contain only male gametes.
male or unsexed
http://eol.org/schema/terms/maleOrUnsexed
male or unsexed individuals are represented in a sample or an occurrence.
Male Tenure
http://eol.org/schema/terms/MaleTenure
mammalivore
http://eol.org/schema/terms/mammalivore
carnivorous animal which eats primarily mammals
man-made tunnel
http://purl.obolibrary.org/obo/ENVO_00000066
A tunnel constructed by human means.
manganese-reducing sediment
http://purl.obolibrary.org/obo/ENVO_01000151
Sediment hosting and characterised by active manganese reducing microbial communities.
mangrove biome
http://purl.obolibrary.org/obo/ENVO_01000181
A mangrove biome is a terrestrial biome which includes, across its spatial extent, mangrove plants (Rhizophoraceae). Mangrove plants are able to withstand high levels of salinity as well as regions of anoxia and frequent tidal inundation. Mangrove biomes often occur near tropical and sub-tropical estuaries and depositional marine coastal environments where fine sediments (often with high organic content) collect in areas protected from high energy wave action.
mangrove island
http://purl.obolibrary.org/obo/ENVO_00000103
An island formed of trees and shrubs that grow in saline coastal habitats in the tropics and subtropics.
mangrove swamp
http://purl.obolibrary.org/obo/ENVO_00000057
An swamp formed of trees and shrubs that grow in saline coastal habitats in the tropics and subtropics.
Mantle length
http://eol.org/schema/terms/MantleLength
manufactured product
http://purl.obolibrary.org/obo/ENVO_00003074
manured soil
http://purl.obolibrary.org/obo/ENVO_00005767
Maranhão Babaçu forests
http://eol.org/schema/terms/Maranhao_Baba_u_forests
marginal ice zone front
http://purl.obolibrary.org/obo/ENVO_01000095
marginal sea biome
http://purl.obolibrary.org/obo/ENVO_01000046
The marginal sea biome comprises parts of an ocean partially enclosed by land such as islands, archipelagos, or peninsulas. Unlike mediterranean seas, marginal seas have ocean currents caused by ocean winds. Many marginal seas are enclosed by island arcs that were formed from the subduction of one oceanic plate beneath another.
marine
http://purl.obolibrary.org/obo/ENVO_00000447
An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
marine
http://purl.obolibrary.org/obo/ENVO_00000569
A habitat that is in or on a sea or ocean containing high concentrations of dissolved salts and other total dissolved solids (typically >35 grams dissolved salts per litre).
marine algal bloom
http://purl.obolibrary.org/obo/ENVO_01000057
A marine algal bloom is a rapid increase or accumulation in the population of algae in a marine system. Typically, only one or a small number of phytoplankton species are involved. Although there is no officially recognized threshold level, algae can be considered to be blooming at concentrations of hundreds to thousands of cells per milliliter, depending on the severity.
marine animals
https://eol.org/schema/terms/marine animals
marine animals
https://eol.org/schema/terms/marine_animals
marine anoxic zone
http://purl.obolibrary.org/obo/ENVO_01000066
Marine anoxic zones are areas of marine water that are depleted of dissolved oxygen. This condition is generally found in areas that have restricted water exchange. In most cases, oxygen is prevented from reaching the deeper levels by a physical barrier (sill) as well as by a pronounced density stratification. Anoxic conditions will occur if the rate of oxidation of organic matter by bacteria is greater than the supply of dissolved oxygen.
marine basaltic hydrothermal vent biome
http://purl.obolibrary.org/obo/ENVO_01000054
A marine basaltic hydrothermal vent biome comprises regions of the marine hydrothermal vent biome hosted on basaltic rocks. Basalt generally has a composition of 45 to 55 wt % SiO2, 2 to 6 wt % total alkalis, 0.5 to 2.0 wt % TiO2, 5 to 14 wt % FeO and 14 wt % or more Al2O3. Contents of CaO are commonly near 10 wt %, those of MgO commonly in the range 5 to 12 wt %.
marine benthic biome
http://purl.obolibrary.org/obo/ENVO_01000024
The marine benthic biome (benthic meaning 'bottom') encompasses the seafloor and includes such areas as shores, littoral or intertidal areas, marine coral reefs, and the deep seabed.
marine benthic feature
http://purl.obolibrary.org/obo/ENVO_01000105
A prominent or distinctive aspect, quality, or characteristic of environments occurring on or along marine benthic environments.
marine benthic storm
http://purl.obolibrary.org/obo/ENVO_01000062
Benthic storms are strong benthic (near bottom) currents transporting sediment, created by the input of energy (largely kinetic) to the seabed. In regions with high mesoscale eddy activity, benthic storms are frequent and can create isohaline and isothermal conditions extending as much as 1000m above the seafloor.
marine carnivore
https://eol.org/schema/terms/marine_carnivore
A consumer that feeds primarily on marine animals
marine channel
http://purl.obolibrary.org/obo/ENVO_00000396
marine chemocline
http://purl.obolibrary.org/obo/ENVO_01000076
A marine chemocline is a marine cline caused by a strong, vertical chemistry gradient within a body of marine water. Chemoclines most commonly occur where local conditions favor the formations of anoxic bottom water.
marine cold-water sphere
http://purl.obolibrary.org/obo/ENVO_01000108
The marine cold-water sphere describes a water mass extending from the polar seas and across low latitudes at depths of ca. 800 to 1000 m, which is separated from the marine warm-water sphere by the permanent marine thermocline
marine coral reef back reef
http://purl.obolibrary.org/obo/ENVO_01000145
marine coral reef buttress zone
http://purl.obolibrary.org/obo/ENVO_01000148
marine coral reef crest
http://purl.obolibrary.org/obo/ENVO_01000146
marine coral reef deep fore reef
http://purl.obolibrary.org/obo/ENVO_01000149
marine coral reef flat zone
http://purl.obolibrary.org/obo/ENVO_01000144
marine coral reef fore reef
http://purl.obolibrary.org/obo/ENVO_01000147
marine current
http://purl.obolibrary.org/obo/ENVO_01000067
A marine current is a continuous, directed movement of marine water generated by the forces acting upon this mean flow, such as breaking waves, wind, Coriolis force, temperature and salinity differences and tides caused by the gravitational pull of the Moon and the Sun. Depth contours, shoreline configurations and interaction with other currents influence a current's direction and strength.
marine downwelling
http://purl.obolibrary.org/obo/ENVO_01000064
A marine downwelling describes a net current of marine surface water towards deeper regions of the water column. Marine downwellings are usually caused by differences in the density (and hence, temperature and salinity) of seawater.
marine fishes
https://www.wikidata.org/entity/Q5364423
fish that live all or much of their lives in seawater
marine hydrothermal plume
http://purl.obolibrary.org/obo/ENVO_01000130
A marine hydrothermal vent plume, part of a marine hydrothermal vent, is a high temperature water jet laden with dissolved metals and minerals that is driven by heat generated due to tectonic activity below the vent.
marine hydrothermal vent
http://purl.obolibrary.org/obo/ENVO_01000122
A marine hydrothermal vent is a marine benthic feature where heat generated due to tectonic activity, either at divergent plate boundaries or convergent ocean plates where back-arc spreading occurs, is released or 'vented' to the surface. The resultant high temperature water jets are laden with dissolved metals and minerals.
marine hydrothermal vent chimney
http://purl.obolibrary.org/obo/ENVO_01000129
marine invertebrates
https://www.wikidata.org/entity/Q3737872
marine lysocline
http://purl.obolibrary.org/obo/ENVO_01000079
The marine lysocline denotes the depth in the ocean below which the rate of dissolution of calcite increases dramatically. As water column depth and therefore pressure increases, the corresponding calcite saturation of seawater decreases and the calcite begins dissolve.
marine mud
http://purl.obolibrary.org/obo/ENVO_00005795
marine neritic benthic zone biome
http://purl.obolibrary.org/obo/ENVO_01000025
The marine neritic zone biome comprises sea floor from the high tide mark to a continental shelf break. This zone generally extends to 200 m below average sea level.
marine nutricline
http://purl.obolibrary.org/obo/ENVO_01000078
The marine nutricline describes a sharp change in the nutrient content of seawater (in relation to the gradients of the water mass surrounding it) in the marine water column.
marine oligotrophic desert
http://purl.obolibrary.org/obo/ENVO_01000073
An expanse of marine water characterised by low concentrations of nutrients such as phosphate, nitrate as well as organic matter and, hence, low primary productivity. These regions tend to have high dissolved oxygen levels due to a lack of respiration.
marine oxygen minimum zone
http://purl.obolibrary.org/obo/ENVO_01000065
marine park
http://purl.obolibrary.org/obo/ENVO_00000362
A protected area of the sea usually established to preserve a specific habitat and ensure the ecosystem is sustained for the organisms that exist there. Most marine parks are designated by governments, and organized like watery national parks.
marine pelagic biome
http://purl.obolibrary.org/obo/ENVO_01000023
The marine pelagic biome (pelagic meaning open sea) is that of the marine water column, from the surface to the greatest depths.
marine pelagic feature
http://purl.obolibrary.org/obo/ENVO_01000044
A prominent or distinctive aspect, quality, or characteristic of environments occurring within the marine water column.
marine pockmark
http://purl.obolibrary.org/obo/ENVO_01000160
Pockmarks are craters in the seabed resulting from the release of gas or liquid. Generally, they are formed in soft, fine-grained seabed sediments by the escape of fluids (gas or water, but mainly methane) into the water column.
marine pycnocline
http://purl.obolibrary.org/obo/ENVO_01000077
The marine pycnocline describes a sharp change in the density of seawater (in relation to the gradients of the water mass surrounding it) in the marine water column. Pycnoclines are usually associated with thermo- and haloclines.
marine reef
http://purl.obolibrary.org/obo/ENVO_01000143
marine reef biome
http://purl.obolibrary.org/obo/ENVO_01000029
A biome expressed by strips or ridges of rocks, sand, or coral that rises to or near the surface of a body of marine water.
marine sediment
http://purl.obolibrary.org/obo/ENVO_00002113
Marine sediment is a sediment that accumulates in the flat or very gently sloping areas of the deep ocean basin floor. The three main types of marine sediment, also known as pelagic sediment, are siliceous oozes, calcareous oozes, and red clays.
marine sediment
http://purl.obolibrary.org/obo/ENVO_03000033
Sediment which has been transported through the marine water column, settling on the seafloor
marine sludge
http://purl.obolibrary.org/obo/ENVO_00005796
marine snow
http://purl.obolibrary.org/obo/ENVO_01000158
Marine snow is a continuous shower of mostly organic detritus falling from the upper layers of the water column. Its origin lies in activities within the productive photic zone.
marine sponge reef
http://purl.obolibrary.org/obo/ENVO_01000161
A marine sponge reef is marine reefs primarily built by marine sponges. The primary frame-building sponges are all members of the order Hexactinosa. They are found only in glacier-scoured troughs of low-angle continental shelf. The seafloor is stable and consists of rock, coarse gravel, and large boulders.
marine streamer
http://purl.obolibrary.org/obo/ENVO_01000068
Marine streamers are tongues of cold water that extend > 100 km offshore from upwelling regions. Enhanced primary productivity may occur in these waters as they are typically more nutrient rich than marine surface waters.
marine subtidal rocky reef
http://purl.obolibrary.org/obo/ENVO_01000150
marine surface current
http://purl.obolibrary.org/obo/ENVO_01000099
A marine current bordered by the surface of the water column and the permanent thermocline, where it occurs. Surface currents are mostly wind driven and mostly limited to the top 400 m of the water column. Ocean currents are driven by the circulation of wind above surface waters. Frictional stress at the interface between the ocean and the wind causes the water to move in the direction of the wind. Large ocean currents are a response of the atmosphere and ocean to the flow of energy from the tropics to polar regions. In some cases, currents are transient features and affect only a small area. Other ocean currents are essentially permanent and extend over large horizontal distances.
marine Taylor column
http://purl.obolibrary.org/obo/ENVO_01000072
A Taylor column effect describes the acceleration and destabilistion of currents flowing over shoaling topography such as seamounts. Eddies and internal waves are generated downstream of the topological feature and may extend 1000 m or so above them. This may result in a localised increase in primary production where the Taylor column reaches surface waters.
marine terrace
http://purl.obolibrary.org/obo/ENVO_00000509
marine thermocline
http://purl.obolibrary.org/obo/ENVO_01000075
The marine thermocline describes a sharp change in the temperature of seawater (in relation to the temperature gradients of the water mass surrounding it) in the marine water column, which is usually associated with rapid changes in water density and salinity.
marine upwelling
http://purl.obolibrary.org/obo/ENVO_01000063
A marine upwelling is a net flow of marine water to the surface of the water column from deeper regions. This is often a result of surface water displacement off continental coasts by wind action. Localised upwellings may also occur along divergent fronts around eddies and along some of the major oceanographic features. Deeper waters often have higher nutrient content; consequently blooms of primary producers, such as planktonic algae, are generally observed around upwelling zones.
marine warm-water sphere
http://purl.obolibrary.org/obo/ENVO_01000109
The marine warm-water sphere describes a water mass extending to depths of ca. 800 to 1000 m in low and middle latitudes. It is separated from the marine cold-water sphere by the permanent marine thermocline
marine water body
http://purl.obolibrary.org/obo/ENVO_00001999
marine water mass
http://purl.obolibrary.org/obo/ENVO_01000686
A mass of marine water.
marine wind mixed layer
http://purl.obolibrary.org/obo/ENVO_01000061
The upper part of the marine water column with generally uniform properties resulting from wind-driven mixing.
Marquesas Island
http://www.geonames.org/4019977
marsh
http://purl.obolibrary.org/obo/ENVO_00000035
A wetland, featuring grasses, rushes, reeds, typhas, sedges, and other herbaceous plants (possibly with low-growing woody plants) in a context of shallow water.
Mass
http://purl.obolibrary.org/obo/PATO_0000125
mass
http://www.owl-ontologies.com/unnamed.owl#Mass
massif
http://purl.obolibrary.org/obo/ENVO_00000381
A section of the Earths's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole.
massive growth habit
http://purl.obolibrary.org/obo/PORO_0000389
Large, compact structure without definable shape
http://www.coralsoftheworld.org/page/glossary/#Glossary_M
mature
http://purl.obolibrary.org/obo/PATO_0001701
A quality inhering in a bearer by virtue of the bearer's exhibiting complete growth, differentiation, or development.
[database_cross_reference: Merriam-Webster:Merriam-Webster]
max
http://semanticscience.org/resource/SIO_001114
a maximal value is largest value of an attribute for the entities in the defined set.
max cell storage (ammonium)
http://eol.org/schema/terms/max_cell_storage_ammonium
maximum cell content of ammonium under exponential growth with saturating nutrient supply
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
max cell storage (nitrate)
http://eol.org/schema/terms/max_cell_storage_nitrate
maximum cell content of nitrate under exponential growth with saturating nutrient supply
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
max cell storage (phosphate)
http://eol.org/schema/terms/max_cell_storage_phosphate
maximum cell content of phosphate under exponential growth with saturating nutrient supply
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
max growth rate (ammonimum)
http://eol.org/schema/terms/max_growth_rate_ammonimum
asymptotic maximum specific growth rate under unlimited ambient ammonium
Monod, J. 1949. The growth of bacterial cultures. Annual Review of Microbiology 3:371–394.
max growth rate (nitrate)
http://eol.org/schema/terms/max_growth_rate_nitrate
asymptotic maximum specific growth rate under unlimited ambient nitrate
Monod, J. 1949. The growth of bacterial cultures. Annual Review of Microbiology 3:371–394.
max growth rate (phosphate)
http://eol.org/schema/terms/max_growth_rate_phosphate
asymptotic maximum specific growth rate under unlimited ambient phosphate
Monod, J. 1949. The growth of bacterial cultures. Annual Review of Microbiology 3:371–394.
max growth rate - infinite quota (ammonimum)
http://eol.org/schema/terms/max_growth_rate_internal_ammonimum
hypothetical asymptotic maximum specific growth rate at infinite internal cell concentration of ammonium
"Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
max growth rate - infinite quota (nitrate)
http://eol.org/schema/terms/max_growth_rate_internal_nitrate
hypothetical asymptotic maximum specific growth rate at infinite internal cell concentration of nitrate
"Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
max growth rate - infinite quota (phosphate)
http://eol.org/schema/terms/max_growth_rate_internal_phosphate
hypothetical asymptotic maximum specific growth rate at infinite internal cell concentration of phosphate
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
max uptake rate (ammonium)
http://eol.org/schema/terms/max_uptake_rate_ammonium
asymptotic maximum rate of ammonium uptake at infinite concentration
L. Michaelis, M.L. Menten. Kinetik der Invertinwirkung. Biochem. Zeitung, 49 (1913), pp. 333–369
max uptake rate (nitrate)
http://eol.org/schema/terms/max_uptake_rate_nitrate
asymptotic maximum rate of nitrate uptake at infinite concentration
L. Michaelis, M.L. Menten. Kinetik der Invertinwirkung. Biochem. Zeitung, 49 (1913), pp. 333–369
max uptake rate (phosphate)
http://eol.org/schema/terms/max_uptake_rate_phosphate
asymptotic maximum rate of phosphate uptake at infinite concentration
L. Michaelis, M.L. Menten. Kinetik der Invertinwirkung. Biochem. Zeitung, 49 (1913), pp. 333–369
Maxbotdepth
http://iobis.org/maxbotdepth
{definition missing}
Maxlat
http://iobis.org/maxlat
{definition missing}
Maxlon
http://iobis.org/maxlon
{definition missing}
Mayotte
http://www.wikidata.org/entity/Q3110238
meadow
http://purl.obolibrary.org/obo/ENVO_00000108
A habitat of rolling or flat terrain where grasses predominate. Typically, what is called a meadow has more biodiversity than a grassland as the former contains not only grasses but a significant variety of annual, biennial and perennial plants.
meadow soil
http://purl.obolibrary.org/obo/ENVO_00005761
mean
http://semanticscience.org/resource/SIO_001109
a mean is the central tendency of a collection of numbers taken as the sum of the numbers divided by the size of the collection.
mean annual temperature
http://eol.org/schema/terms/meanAnnualTemperature
meander
http://purl.obolibrary.org/obo/ENVO_00000427
A bend in a stream. A stream flowing through a wide valley or flat plain will tend to form a meanders as it alternatively erodes and deposits sediments along its course.
measurement accuracy
http://rs.tdwg.org/dwc/terms/measurementAccuracy
The description of the potential error associated with the measurementValue.
measurement determined by
http://rs.tdwg.org/dwc/terms/measurementDeterminedBy
A list (concatenated and separated) of names of people, groups, or organizations who determined the value of the MeasurementOrFact.
measurement method
http://rs.tdwg.org/dwc/terms/measurementMethod
A description of or reference to (publication, URI) the method or protocol used to determine the measurement, fact, characteristic, or assertion.
measurement remarks
http://rs.tdwg.org/dwc/terms/measurementRemarks
Comments or notes accompanying the MeasurementOrFact.
medial moraine
http://purl.obolibrary.org/obo/ENVO_00000250
A moriane formed when the inside lateral moraines of two glaciers merge together. They form a ridge down the center of the combined glaciers.
median
http://semanticscience.org/resource/SIO_001110
a median is the numerical value separating the higher half of a sample, a population, or a probability distribution, from the lower half.
medical instrument
http://purl.obolibrary.org/obo/ENVO_00010621
mediterranean
http://purl.obolibrary.org/obo/ENVO_01000207
mediterranean forest biome
http://purl.obolibrary.org/obo/ENVO_01000199
A mediterranean forest biome is a forest biome which includes communities adapted to hot to warm, dry summers, mild to cold, rainy winters, and the influence of large, usually marine, bodies of water.
mediterranean grassland biome
http://purl.obolibrary.org/obo/ENVO_01000224
A mediterranean grassland biome is a subtropical grassland biome which includes communities adapted to hot to warm, dry summers, mild to cold, rainy winters, and the influence of large, usually marine, bodies of water.
mediterranean savanna biome
http://purl.obolibrary.org/obo/ENVO_01000229
Mediterranean Sea
http://www.geonames.org/363196
mediterranean sea biome
http://purl.obolibrary.org/obo/ENVO_01000047
The mediterranean sea biome comprises mostly enclosed seas that have limited exchange of deep water with outer oceans and where the water circulation is dominated by salinity and temperature differences rather than winds.
mediterranean shrubland biome
http://purl.obolibrary.org/obo/ENVO_01000217
A mediterranean shrubland biome is a subtropical shrubland biome which includes communities adapted to hot to warm, dry summers, mild to cold, rainy winters, and the influence of large, usually marine, bodies of water.
mediterranean woodland biome
http://purl.obolibrary.org/obo/ENVO_01000208
A mediterranean woodland biome is a subtropical woodland biome which includes communities adapted to hot to warm, dry summers, mild to cold, rainy winters, and the influence of large, usually marine, bodies of water.
medium
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C49507
Mid-way between small and large in number, quantity, magnitude or extent.
medium (23 – 59)
http://eol.org/schema/terms/mediumCNRatio
The percentage of organic carbon divided by the percentage of total nitrogen in organic material is 23–59.
USDA Plants database. Characteristics Data Fields. http://plants.usda.gov/charinfo.html
medium (85-160 lb N/acre/year)
http://eol.org/schema/terms/mediumNitrogenFixation
Plants with medium nitrogen fixation. 85-160 lb nitrogen per acre per year fixed in monoculture.
USDA PLANTS database Characteristics Data Fields. http://plants.usda.gov/charinfo.html
medium (normal)
http://purl.obolibrary.org/obo/PATO_0000461
Average. A quality inhering in a bearer by virtue of the bearer's exhibiting no deviation from normal or average.
[database_cross_reference: PATOC:GVG]
meiosis II
http://purl.obolibrary.org/obo/GO_0007135
automatically added during harvest
Egg Characters
meromictic lake
http://purl.obolibrary.org/obo/ENVO_00000199
A lake which has layers of water which do not intermix. The deepest layer of water in such a lake does not contain any dissolved oxygen. The layers of sediment at the bottom of a meromictic lake remain relatively undisturbed because there are no living organisms to stir them up.
mesa
http://purl.obolibrary.org/obo/ENVO_00000179
An elevated area of land with a flat top and sides that are usually steep cliffs. Mesas form in areas where horizontally layered rocks are uplifted by tectonic activity.
mesentery
https://www.wikidata.org/entity/Q25339394
a membrane inside the body cavity of an animal. The term identifies different structures in different phyla.
https://en.wikipedia.org/wiki/Mesentery_(zoology)
mesopelagic zone
http://purl.obolibrary.org/obo/ENVO_00000213
The zone of an ocean immediately below the photic zone down to a depth where the water temperature is 10degC (the thermocline).
mesophilic sediment
http://purl.obolibrary.org/obo/ENVO_01000131
Sediment characterised by a temperature of 15-45 degrees Celsius and high-to-low oxygenation. Often impacted by hydrothermal fluid flows.
mesophilic sulfur spring
http://purl.obolibrary.org/obo/ENVO_00002128
mesophyte
http://www.wikidata.org/entity/Q1922484
terrestrial plants adapted to neither very dry nor very wet environments
mesoscale marine eddy
http://purl.obolibrary.org/obo/ENVO_01000069
Mesoscale marine eddies are characterized by currents which flow in a roughly circular motion around the center of the eddy. The sense of rotation of these currents may either be cyclonic or anticyclonic. Ocean eddies are also usually made of water masses that are different to those outside of the eddy. Marine mesoscale eddies are between about 10 and 500 km in diameter, and persist for periods of days to months. They may be formed when an ocean current develops an instability. This instability grows, causing the current to meander, and eventually an eddy is pinched off from the meander.
mesotrophic freshwater lake
http://eol.org/schema/terms/mesotrophicFreshwaterLake
mesotrophic water
http://purl.obolibrary.org/obo/ENVO_00002225
Water with a nutrient level intermediate between eutrophic and oligotrophic.
Mesozoic Era
http://resource.geosciml.org/classifier/ics/ischart/Mesozoic
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Messinian Age
http://resource.geosciml.org/classifier/ics/ischart/Messinian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
metabolic rate
http://www.owl-ontologies.com/unnamed.owl#Metabolic_rate
The amount of energy expended at rest
metacercarium
http://purl.obolibrary.org/obo/WBls_0000720
A dormant Digenean (fluke) life stage which occurs after cercariae are released from the intermediate snail host and encyst on vegetation until they are ingested by the definitive host.
NMNH type specimen data in DwCA
metal contaminated soil
http://purl.obolibrary.org/obo/ENVO_00003081
metalimnion
http://purl.obolibrary.org/obo/ENVO_00002132
The layer within a body of water or air where the temperature changes rapidly with depth.
metamorphic rock
http://purl.obolibrary.org/obo/ENVO_00002017
A rock formed by subjecting any rock type (including previously-formed metamorphic rock) to different temperature and pressure conditions than those in which the original rock was formed. These temperatures and pressures are always higher than those at the Earth's surface and must be sufficiently high so as to change the original minerals into other mineral types or else into other forms of the same minerals (e.g. by recrystallisation).
metamorphosis
http://www.owl-ontologies.com/unnamed.owl#Metamorphosis
meteorite
http://purl.obolibrary.org/obo/ENVO_00002035
A natural object originating in outer space that survives an impact with the Earth's surface without being destroyed.
mg
http://purl.obolibrary.org/obo/UO_0000022
Milligram. A mass unit which is equal to one thousandth of a gram or 10^[-3] g
mg/cm^2
http://eol.org/schema/terms/milligramsPercm2
mg/cm^2/day
http://eol.org/schema/terms/milligramsPercm2PerDay
mg/g
http://eol.org/schema/terms/milligramspergram
A concentration unit which is a standard measure of the mass of a substance measured in milligrams in a given mass of matrix measured in grams
mg/L
http://purl.obolibrary.org/obo/UO_0000273
mg/m^2
http://purl.obolibrary.org/obo/UO_0000309
microalgae
https://eol.org/schema/terms/microalgae
microscopic algae, typically found in freshwater and marine systems, living in both the water column and sediment. They are unicellular species which exist individually, or in chains or groups.
https://en.wikipedia.org/wiki/Microalgae
microbial feature
http://purl.obolibrary.org/obo/ENVO_01000007
microbial mat
http://purl.obolibrary.org/obo/ENVO_01000008
A multi-layered sheet of micro-organisms, mainly bacteria and archaea. Microbial mats grow at interfaces between different types of material, mostly on submerged or moist surfaces but a few survive in deserts.
microbial mat material
http://purl.obolibrary.org/obo/ENVO_01000157
Material derived from a microbial mat, a multi-layered sheet of micro-organisms, mainly bacteria and archaea. Microbial mats create a wide range of internal chemical environments.
microbivore
https://eol.org/schema/terms/microbivore
a consumer feeding primarily on microbes. For instance, many animals of the mesofauna, microfauna and meiofauna
https://en.wikipedia.org/wiki/Microbivory
microcarnivore
http://eol.org/schema/terms/microcarnivore
carnivore that eats small invertebrates, e.g., microcrustaceans, mollusc and bryozoan larvae.
microfilarial stage
http://purl.obolibrary.org/obo/BTO_0003670
The prelarval stage of filarioidea in the blood and other tissues of mammals and birds. They are removed from these hosts by blood-sucking insects in which they metamorphose into mature larvae.
NMNH type specimen data in DwCA
microorganisms
https://www.wikidata.org/entity/Q39833
microscopic living organism
microphage
https://www.wikidata.org/entity/Q3312246
a consumer which handles food items in bulk without manipulating them individually
microphytobenthos
http://eol.org/schema/terms/microphytobenthos
The community of microscopic, unicellular eukaryotic algae (Baccilariophyceae, Chlorophyceae and Dinophyceae) and the prokaryotic Cyanobacteria which live on sediment surfaces. See Kiel, 2004. The microphytobenthos and its role in aquatic food webs. Dissertation zur Erlangung des Doktorgrades der Mathematisch-Naturwissenschaftlichen Fakultät der Christian-Albrechts-Universität zu Kiel http://epic.awi.de/11852/1/Abe2004e.pdf
mid spring
http://eol.org/schema/terms/midSpring
The mid part of the season between the vernal equinox and the summer solstice.
mid summer
http://eol.org/schema/terms/midSummer
The mid part of the season between the summer solstice and the autumnal equinox.
mid-ocean ridge
http://purl.obolibrary.org/obo/ENVO_00000406
An underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary. The mid-ocean ridges of the world are connected and form a single global mid-oceanic ridge system that is part of every ocean.
mid-persistent
http://eol.org/schema/terms/midPersistentSeedBank
Of seed bank longevity. Seed bank longevity is at least > 5 yr (could be longer but it is unknown).
http://www.uv.es/jgpausas/brot.htm
mid-range latitude
http://eol.org/schema/terms/MidRangeLatitude
A measure of geographic range: Median latitudinal extent of the species range.
mid-range longitude
http://eol.org/schema/terms/MidRangeLongitude
A measure of geographic range: Median longitudinal extent of the species range.
mid-shelf fronts
http://purl.obolibrary.org/obo/ENVO_01000088
midden
http://purl.obolibrary.org/obo/ENVO_00010442
A dump for domestic waste. A term used to describe any kind of feature containing waste products relating to day-to-day human life.
middle Arctic dwarf shrub subzone
http://eol.org/schema/terms/middleArcticDwarfShrubSubzone
Zone C, per the Circumpolar Arctic Vegetation Map (CAVM Team 2003)
http://www.arcticatlas.org/maps/themes/cp/cpbz
Middle Devonian Epoch
http://resource.geosciml.org/classifier/ics/ischart/MiddleDevonian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Middle Jurassic Epoch
http://resource.geosciml.org/classifier/ics/ischart/MiddleJurassic
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Middle Ordovician Epoch
http://resource.geosciml.org/classifier/ics/ischart/MiddleOrdovician
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Middle Pleistocene Age
http://resource.geosciml.org/classifier/ics/ischart/MiddlePleistocene
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
middle toe & claw length
http://eol.org/schema/terms/MiddleToePlusClawLength
The length of the middle toe and claw.
middle toe length
http://eol.org/schema/terms/MiddleToeLength
length of the middle toe
Middle Triassic Epoch
http://resource.geosciml.org/classifier/ics/ischart/MiddleTriassic
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
midpoint altitude
http://eol.org/schema/terms/MidpointAltitude
Elevation above sea level of the midpoint of the vertical range of an organism.
migratory
http://eol.org/schema/terms/migratory
makes regular daily or seasonal movements between different regions or habitats
migratory status
http://www.owl-ontologies.com/unnamed.owl#MigratoryStatus
military training area
http://purl.obolibrary.org/obo/ENVO_00000561
A region in which military personnel train.
millimeters per month
http://eol.org/schema/terms/millimeterspermonth
million years ago
http://eol.org/schema/terms/paleo_megaannum
1 megaannum in the past. Megaannum, Ma. is a unit of time equal to one million (10<sup>6</sup>) years.
min
http://semanticscience.org/resource/SIO_001113
a minimal value is smallest value of an attribute for the entities in the defined set.
min internal ammonium for growth
http://eol.org/schema/terms/min_internal_ammonium_for_growth
minimum cell content of ammonium at which growth ceases
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
min internal nitrate for growth
http://eol.org/schema/terms/min_internal_nitrate_for_growth
minimum cell content of nitrate at which growth ceases
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
min internal phosphate for growth
http://eol.org/schema/terms/min_internal_phosphate_for_growth
minimum cell content of phosphate at which growth ceases
Droop, M. R. 1973. Some thoughts on nutrient limitation in algae. Journal of Phycology 9:264–272
Minbotdepth
http://iobis.org/minbotdepth
{definition missing}
mine
http://purl.obolibrary.org/obo/ENVO_00000076
An excavation in the Earth for the purpose of extracting earth materials.
mine drainage
http://purl.obolibrary.org/obo/ENVO_00001996
The outflow of water from a mine.
mine tailing
http://purl.obolibrary.org/obo/ENVO_00000003
mineral spring
http://purl.obolibrary.org/obo/ENVO_00000125
A spring whose water contains a significant amount of dissolved minerals, that derive from the rocks through which the water flows.
mineralized skeleton contains
https://eol.org/schema/terms/mineralizedSkeletonContains
Component found in mineralized skeletal tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized, and which functions in mechanical and structural support.)
mineralized tissue contains
http://purl.obolibrary.org/obo/UBERON_4000013
Component found in mineralized tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized)
Minlat
http://iobis.org/minlat
{definition missing}
Minlon
http://iobis.org/minlon
{definition missing}
Minnitrate
http://iobis.org/minnitrate
{definition missing}
Minoxygen
http://iobis.org/minoxygen
{definition missing}
Minphosphate
http://iobis.org/minphosphate
{definition missing}
Minsalinity
http://iobis.org/minsalinity
{definition missing}
Minsilicate
http://iobis.org/minsilicate
{definition missing}
Mintemperature
http://iobis.org/mintemperature
{definition missing}
Miocene Epoch
http://resource.geosciml.org/classifier/ics/ischart/Miocene
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
Mississippian Sub-period
http://resource.geosciml.org/classifier/ics/ischart/Mississippian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
mitotic index
https://www.wikidata.org/entity/Q4296711
the ratio between the number of cells in a population undergoing mitosis to the total number of cells in a population
https://en.wikipedia.org/wiki/Mitotic_index
mixed
http://purl.obolibrary.org/obo/PATO_0002122
A composition quality inhering in a bearer by virtue of the bearer's being composed of more than one identifiable entities.
mixed forest biome
http://purl.obolibrary.org/obo/ENVO_01000198
A mixed forest biome is a forest biome which contains densely packed populations or communities of broadleaf and coniferous trees, strongly limiting light penetration to the forest floor.
mixotrophic
http://eol.org/schema/terms/mixotrophy
Deriving energy from more than one category of energy source. eg: light energy and organic matter.
mL/hr O2
http://eol.org/schema/terms/mlO2perhour
Milliliters of oxygen per hour. A unit for metabolic rate.
mL/min
http://eol.org/schema/terms/millilitersPerMinute
mm
http://purl.obolibrary.org/obo/UO_0000016
Millimeter. A length unit which is equal to one thousandth of a meter or 10^[-3] m
mm Hg
http://purl.obolibrary.org/obo/UO_0000272
millimeters of mercury. A unit of pressure equal to the amount of fluid pressure one millimeter deep in mercury at zero degrees centigrade on Earth.
mm/3month
http://eol.org/schema/terms/millimetersPerThreeMonths
mm/4month
http://eol.org/schema/terms/millimetersPerFourMonths
mm/6month
http://eol.org/schema/terms/millimetersPerSixMonths
mm/7month
http://eol.org/schema/terms/millimetersPerSevenMonths
mm/8month
http://eol.org/schema/terms/millimetersPerEightMonths
mm/day
http://purl.obolibrary.org/obo/UO_0010005
mm/month
http://eol.org/schema/terms/millimetersPerMonth
mm/sec
http://purl.obolibrary.org/obo/NCIT_C105508
mm/year
http://eol.org/schema/terms/millimetersPerYear
mm^2
http://purl.obolibrary.org/obo/UO_0000082
An area unit which is equal to one millionth of a square meter or 10^[-6] m^[2]
mm^2/mg
http://eol.org/schema/terms/millimetersSquaredPerMilligram
A specific area unit of the value one square millimeter in area per one milligram in mass
mm^3
http://eol.org/schema/terms/cubicMillimeter
An area unit which is equal to 10^-9 m<sup>3</sup>.
moatan
http://purl.obolibrary.org/obo/ENVO_00000536
An annular depression that may not be continuous, located at the base of many seamounts, islands, and other isolated elevations.
moderate
http://eol.org/schema/terms/moderateRate
Moderate rate. A rate which is neither relatively high nor low.
moderate life span
http://eol.org/schema/terms/moderateLifeSpan
A life span which is neither relatively low nor relatively high.
mol/m^2/day
http://eol.org/schema/terms/mol_per_meter_squared_per_day
~6.022×10<sup>23</sup> molecules or particles per meter squared per day
https://en.wikipedia.org/wiki/Mole_(unit)
molluscivore
https://www.wikidata.org/entity/Q3319613
carnivorous animal that specialises in feeding on molluscs
mollusks
https://www.wikidata.org/entity/Q25326
phylum of invertebrate animals
monadnock
http://purl.obolibrary.org/obo/ENVO_00000432
An isolated hill, knob, ridge, or small mountain that rises abruptly from a gently sloping or virtually level surrounding plain.
monaxon
http://purl.obolibrary.org/obo/PORO_0000412
Linear, nonradiate spicule, or a spicule type not having more than two rays along one axis.
monogenetic volcanic field
http://purl.obolibrary.org/obo/ENVO_00000355
A volcanic field of small, scattered volcanic vents. These volcanic fields, containing numerous monogenetic volcanoes, are noted for having only one short eruptive event. Monogenetic fields occur only where the magma supply to the volcano is low or where vents are not close enough or large enough to develop plumbing systems for continuous feeding of magma.
montane
http://purl.obolibrary.org/obo/ENVO_01000342
montane desert biome
http://purl.obolibrary.org/obo/ENVO_01000185
A montane desert biome is a desert biome which occurs in regions elevated above sea level and which has community structure determined by elevation-dependent environmental conditions.
montane forest
http://purl.obolibrary.org/obo/ENVO_01000435
montane grassland biome
http://purl.obolibrary.org/obo/ENVO_01000194
A montane grassland biome is a grassland biome which occurs in regions elevated above sea level and which has community structure determined by elevation-dependent environmental conditions.
Montane grasslands and shrubland biome
http://purl.obolibrary.org/obo/ENVO_00000882
montane savanna biome
http://purl.obolibrary.org/obo/ENVO_01000223
A montane savanna biome is a savanna biome which occurs in regions elevated above sea level and which has community structure determined by elevation-dependent environmental conditions.
montane shrubland biome
http://purl.obolibrary.org/obo/ENVO_01000216
A montane shrubland biome is a shrubland biome which occurs in regions elevated above sea level and which has community structure determined by elevation-dependent environmental conditions.
months
http://purl.obolibrary.org/obo/UO_0000035
A time unit which is approximately equal to the length of time of one of cycle of the moon's phases which in science is taken to be equal to 30 days.
moor
http://purl.obolibrary.org/obo/ENVO_00000231
A wetland found in upland areas, characterised by acidic soils.
moraine
http://purl.obolibrary.org/obo/ENVO_00000177
An accumulation of boulders, stones, or other debris carried and deposited by a glacier.
mortality rate doubling time
http://eol.org/schema/terms/MortalityRateDoublingTime
The mortality rate doubling time (MRDT) is considered to be a measure of the rate of ageing. It is estimated from the slope of the Gompertz curve by: MRDT = 0.693/G where G is the exponential (Gompertz) mortality rate coefficient.
From senescence.info. Human Ageing Genomic Resources (HAGR). Estimating the Rate of Ageing. http://genomics.senescence.info/software/demographic.html
Moscovian Age
http://resource.geosciml.org/classifier/ics/ischart/Moscovian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
motility
http://www.wikidata.org/entity/Q33596
ability to move spontaneously and actively, consuming energy in the process
mound
http://purl.obolibrary.org/obo/ENVO_00000180
A rounded elevated area.
mount
http://purl.obolibrary.org/obo/ENVO_00000477
A mountain or a hill.
mountain
http://purl.obolibrary.org/obo/ENVO_00000081
A landform that extends above the surrounding terrain in a limited area. A mountain is generally steeper than a hill, but there is no universally accepted standard definition for the height of a mountain or a hill although a mountain usually has an identifiable summit and a local relief of more than 300m.
mountain forest soil
http://purl.obolibrary.org/obo/ENVO_00005769
mountain pass
http://purl.obolibrary.org/obo/ENVO_00000084
A lower point that allows easier access through a mountain range. A pass has the general form of a saddle between two mountains.
mountain range
http://purl.obolibrary.org/obo/ENVO_00000080
A series of connected and aligned mountains or mountain ridges.
mouth
http://purl.obolibrary.org/obo/ENVO_00000479
The exit or point of discharge of a stream into another stream, lake or sea.
mucus
http://purl.obolibrary.org/obo/ENVO_02000040
Mucus is a bodily fluid consisting of a slippery secretion of the lining of the mucous membranes in the body. It is a viscous colloid containing antiseptic enzymes (such as lysozyme) and immunoglobulins. Mucus is produced by goblet cells in the mucous membranes that cover the surfaces of the membranes. It is made up of mucins and inorganic salts suspended in water.
mucus net feeder
http://eol.org/schema/terms/mucus_net_feeder
A consumer that uses patches or a sheet of mucus to capture food particles suspended in the water column
Mud
http://polytraits.lifewatchgreece.eu/terms/MUD
mud
http://purl.obolibrary.org/obo/ENVO_01000001
A liquid or semi-liquid mixture of water and some combination of soil, silt, and clay.
mud volcano
http://purl.obolibrary.org/obo/ENVO_00000402
A volcano created by geologically excreted liquids and gases, although there are several different processes which may cause such activity. Temperatures are much cooler than igneous processes.
muddy soil
http://purl.obolibrary.org/obo/ENVO_00005771
muddy water
http://purl.obolibrary.org/obo/ENVO_00005793
mudflat
http://purl.obolibrary.org/obo/ENVO_00000192
A wetland that forms when mud is deposited by the tides, rivers, sea or oceans.
multipurpose dam
http://purl.obolibrary.org/obo/ENVO_00000553
A dam constructed for more than one purpose.
mushroom compost
http://purl.obolibrary.org/obo/ENVO_00003033
mutualistic with
http://purl.obolibrary.org/obo/RO_0002442
An interaction relationship between two organisms living together in more or less intimate association in a relationship in which both organisms benefit from each other
Arctic Lichen Ecology
Myanmar
http://www.wikidata.org/entity/Q836
mycetome
http://purl.obolibrary.org/obo/ENVO_01000166
A specialized organ that is linked to the gut in beetles and host to a symbiotic yeast. The yeast cells assist in the digestion of less nutritious foods, supply needed B-vitamins and sterols, and provide resistance to certain toxins.
myrmecochory
http://eol.org/schema/terms/myrmecochory
Seed dispersal by ants.
http://www.uv.es/jgpausas/brot.htm