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

Showing 50 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.  +