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This is a property of type Text. It links to pages that use the form MstConcept.

Showing 91 pages using this property.
A
Definition specific to Hydrozoa.  +
Definition requires input. Note, in some insects the larva or juvenile stages may be longer lived than a short-lived reproductive stage (e.g. dragonflies). In flowering plants, the adult is probably the dominant and reproductive form. Under this definition, the adult stage of macroalgae may be considered to be both the sporophyte or gametophyte (as both form gametes), even though the gametophyte may be microscopic. In asexual species, reproductive capability might be considered to separate larval from adult stages.  +
Definition requires input - decide on standard approach - record if age is minimum, maximum or average.In addition the gender (m/f) should be documented.  +
Note -Alternation of generations is kept separate from 'asexual' and 'sexual' reproduction because it describes a specific reproductive type in which asexual and sexual phases occur in a defined cycle, separated by an environmental trigger.  +
Definition specific to Porifera  +
Definition requires specialist input  +
Definition specific to ascidians  +
Definition specific to Holothuroidea.  +
Note that insemination can be needed to stimulate oocyte maturation or further development of the eggs but that insemination is not the same as fertilization  +
B
Specific to Asteroidea  +
Definition requires input - discussion to identify the life stage of interest, and decide on the appropriate unit.  +
Specific to Asteroidea.  +
Definition requires input. Kept separate from 'burrow builder' (under Habitat modification) which refers to an organism that makes a burrow, the 'burrow dweller' uses another's burrow as its habitat or substratum.  +
C
Definition requires specialist input  +
Definition requires input - Record if number is minimum, maximum or average.  +
Definition specific to Hydrozoa, Cnidaria  +
Definition specific to Copepoda  +
Definition specific to Bryozoa. Description and citation required.  +
Specific to Ctenophores  +
Definition specific to Bryozoa  +
Definition specific to Cirripedia  +
D
Definition requires input.  +
Definition may need revision to capture species where 'adult' is ambiguous, e.g. macroalgae where the term 'dominant life stage' might be more relevant.  +
Definition (and value definitions) require input from taxonomic experts - sea bird group.  +
Definition requires input - need to decide on standard format - record of distance is minimum, maximum or average.  +
Definition specific to Holothuoidea  +
E
Definition specific to Echinoidea  +
Definition requires input - need to decide on standard format - record if size is minimum, maximum or average.  +
Definition requires input - included to capture height above chart datum (C.D.) (or normal water surface of lake or river) especially for eulittoral and supralittoral species, freshwater, river and lake dwelling and even terrestrial species (birds, amphibians etc.). Note an organism that is found at a depth of 10-20 m in a freshwater mountain lake would have this attribute recorded under depth range, not elevation, evne if the lake itself was at over 1000m above C.D..  +
Definition from: Hiscock, K. (ed.), 1996. Marine Nature Conservation Review: rationale and methods. Peterborough: Joint Nature Conservation Committee. [Coasts and seas of the United Kingdom. MNCR series.]  +
Definition specific to Scyphozoa  +
F
Definition requires input - need to decide a standard format - some species Max. no. 1,2,... to 10, 12 in which case we record the Max. no., but other species fecundity is measured in the millions, so no point recording 1,000,001.  +
Note ''in stricto'' this term relates to the physical location in which the gametes meet and fuse (or inseminate). It does not assume that the gametic nuclei subsequently fuse, or that one of the haploid components is lost/deactivated. The split between 'external' and 'internal' fertilization requires specialist input.  +
G
Traits term needs rewording  +
Definition specific to species of freshwater mussels of the families Unionidae and Margaritiferidae.  +
Definition specific to Platyhelminthes  +
Lawrence, E. (ed.) (2005) Henderson's dictionary of Biology (13th edition). London, United Kingdom: Pearson Education Limited.  +
H
Definition requires specialist input - plus a citable reference  +
Definition needs specialist input  +
Hard substratum is divided into immobile hard (e.g. bedrock) and mobile hard (e.g. pebbles) that can be moved by strong wave action  +
Definition requires specialist input (sea birds).  +
Definition requires specialist input  +
I
Definition requires input. Is the 'instar' stage considered to be a larval stage or an juvenile stage.  +
Definition requires specialist input  +
J
Definition requires input. The above definition is probably not relevant for most species, except some insects and vertebrates (e.g. birds, reptiles, mammals) that have distinct juvenile stages.  +
L
Definition requires input.  +
Definition requires input - need to decide on standard format - record the range months or seasons over which settlement occurs. Months (Jan., Feb. .... Dec.) are preferred as provide a higher resolution and are independent of hemisphere. But need to record geographical location. Record if period is minimum, maximum or average.  +
Definition requires input - need to decide standard format. The trait value needs to record duration in days or months. Do we record the time from egg to adult i.e. all larval stages, or the duration of each larval stage where there are more than one?  +
This traits uses the 'substratum type' trait value list.  +
Definition requires input - decide on standard approach - record if age is minimum, maximum or average.In addition the gender (m/f) should be documented.  +
Definition requires input - individual life stages and descriptions to be confirmed by taxonomic specialists  +
M
Definiton specific to decapod Crustacea  +
Definiton specific to decapod Crustacea  +
Definition specific to Polychaeta  +
Definition requires input from EMODNET habitats. The current 'definition' is a catch all that needs specialist input and discussion. At present the 'slightly gravelly' categories (Folk, 1954; Long, 2006) are not included. Where does 'lag' fit into this scheme.  +
Long D., (2006). BGS detailed explanation of seabed sediment modified Folk classification. http://www.emodnet-seabedhabitats.eu/PDF/BGS%20detailed%20explanation%20of%20seabed%20sediment%20modified%20folk%20classification.pdf  +
Definition specific to Platyhelminthes  +
Definition requires input - is there another word for this action 'muscular contraction' used in studies of invertebrate and vertebrate swimming/locomotion.  +
N
Definition specific to Crustacea  +
Definition specific to Polychaeta  +
Definition requires confirmation  +
O
Definition specific to Ophiuroidea  +
P
Definition specific to Porifera  +
Definition specific to Mollusca. Citeable definition required.  +
Definition specific to Sipunculida  +
Definition requires input - it is currently specific to NE Atlantic - if required it will need additional terms for Mediterranean, Baltic, Pontic, and Pacific etc features.  +
Definition requires specialist input (sea birds)  +
Definition specific to Nemertea  +
Definition requires confirmation  +
Specific to Cnidaria  +
Definition requires specialist input  +
Definition specific to pycnogonids  +
Definition specific to decapod Crustacea  +
Definition requires specialist input  +
R
Definition specific to Hydrozoa, Cnidaria.  +
Definition requires input - need to decide on a standard approach - either recording the months of the year in which reproduction occurs (e.g. Jan., Feb., ...Dec.) or the season (Spring, Summer, Autumn, Winter). Month is preferable as it is a better resolution and more transferable across hemispheres. Need to add information on geographical location information of the record, as the productive season may vary with latitude and climate.  +
Hierarchy requires input. At present, the asexual and sexual reproductive split in the hierarchy is based on the presence or absence of meiosis. It does not represent the distinction between true sexual reproduction that involves both random association of alleles and gametes, and other forms of mictic and amictic reproduction.  +
S
The definition refers to a scale of salinities (Reusser & Lee, 2011). The traits could be records as a range of values of the scale in which the organism is found, or as the max. to minimum values in which the organism is recorded. Note the scale is expressed as 'psu' while the TEOS-10 uses g/kg (mass fraction of salt in seawater).  +
Definition and traits/descriptors require input from EMODNET Habitats  +
Definition requires specialist input  +
Definition require specialist input  +
Definition requires specialist input  +
Definitions require input from EMODNET Habitats to ensure consistency.  +
T
Definition and scale taken from Hiscock (1996).  +
Definition in wrong place in hierarchy  +
U
Definition requires specialist input (sea birds)  +
V
Definition specific to Mollusca  +
Definition requires input. Refer to discussion.  +
W
Definition requires specialist input (sea birds)  +
Definition requires specialist input.  +
Z
Definition specific to decapod Crustacea  +