Graphical design component

r1 - 15 Mar 2006 - 00:03:47 - AnnieSimpsonYou are here: TWiki >  InvasiveSpecies Web > AgadirMeeting > TerminologyWorkingGroup > TerminologySummary > GISINdefinitionsMatrix

Definition Framework matrix (proposed by Kevin Thiele)

Proposal - we will provide a picklist of a large number of terms that people use in various databases to describe alien invasives (a shortlist is in Table A). These terms will include some we don't like, and the terms will not be mutually exclusive. However, we will also provide a more atomised set of terms using which providers must define what they mean by the terms they use. The term-defining concepts and terms are in Table B below. See also SampleDefinitions.

Table A

Some terms used in databases
Alien Invasive Non-Invasive
Introduced    
Native    
Exotic    
Cryptogenic    
adventive    
feral    
foreign    
naturalised    

Table B

Elements needed to rigorously define these terms
Origin  
  Outside polygon of interest
  Inside polygon of interest
  Not relevant
  Not known
Human agent in range change?
  Yes
  No
  Not relevant
  Not known
  Not applicable
Impact  
  Has negative impact (at least sometimes)
  Does not have negative impact
  Not relevant
  Not known
Establishment  
  Established
  Not established
  Not relevant
  Not known
Geographic Range  
  Widespread and/or spreading
  Not widespread, not spreading
  Not relevant
  Not known
Ecological Range  
  Restricted to human-modified habitats
  Occurs in natural habitats
  Not relevant
  Not known

-- AnnieSimpson - 14 Mar 2006

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