Property:Definition

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

Showing 20 pages using this property.
C
CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora) is an international agreement between governments. Its aim is to ensure that international trade in specimens of wild animals and plants does not threaten their survival. Appendices I, II and III to the Convention are lists of species afforded different levels or types of protection from over-exploitation.  +
Appendix I lists species that are the most endangered among CITES-listed animals and plants (see Article II, paragraph 1 of the Convention). They are threatened with extinction and CITES prohibits international trade in specimens of these species except when the purpose of the import is not commercial (see Article III), for instance for scientific research. In these exceptional cases, trade may take place provided it is authorized by the granting of both an import permit and an export permit (or re-export certificate). Article VII of the Convention provides for a number of exemptions to this general prohibition.  +
Appendix II lists species that are not necessarily now threatened with extinction but that may become so unless trade is closely controlled. It also includes so-called "look-alike species", i.e. species whose specimens in trade look like those of species listed for conservation reasons (see Article II, paragraph 2 of the Convention). International trade in specimens of Appendix-II species may be authorized by the granting of an export permit or re-export certificate. No import permit is necessary for these species under CITES (although a permit is needed in some countries that have taken stricter measures than CITES requires). Permits or certificates should only be granted if the relevant authorities are satisfied that certain conditions are met, above all that trade will not be detrimental to the survival of the species in the wild. (See Article IV of the Convention)  +
Appendix III is a list of species included at the request of a Party that already regulates trade in the species and that needs the cooperation of other countries to prevent unsustainable or illegal exploitation (see Article II, paragraph 3, of the Convention). International trade in specimens of species listed in this Appendix is allowed only on presentation of the appropriate permits or certificates. (See Article V of the Convention)  +
An organism that constructs reefs or biogenic structures composed of the calcareous skeletons of individuals or colonies (e.g. corals)  +
Skeleton composed of calcareous spicules (sponges/echinoderms), plates, spines, bones or other structures  +
crystalline form of calcium carbonate, e. g. one of the constituents of mollusc shells and the skeletons of calcareous sponges.  +
Where a canal, by joining two bodies of water which were not originally naturally joined, becomes a conduit for invasive species migration to a new area/region.  +
Enlarged or swollen at the apex, with a ‘head’, clubbed (Prescott, 1969).  +
specialist - scaphopods  +
An organism that feeds on animal tissue/meat.  +
A hollow normally eroded in a cliff (or vertical rock) with the penetration being greater than the width of the entrance (Hiscock, 1996).  +
The surface or body part to which eggs are attached by the parent  +
specialist - chaetognaths  +
Forming chains of individuals  +
Common in OSPAR Region III  +
Common in OSPAR Regions II, III, IV  +
An organism that obtains metabolic energy from oxidation of inorganic substrates such as sulphur, nitrogen or iron (e.g. some micro-organisms) (Lincoln ''et al.'', 1998).  +
composed of chitin, a long-chain polymer of N-acetylglucosamine. It is the chief polysaccharide in fungal cell walls and in the exoskeleton of arthropods (derived form Lawrence, 2005).  +