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date	2006.03.15.00.03.47;	author AnnieSimpson;	state Exp;
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@%META:TOPICINFO{author="AnnieSimpson" date="1142381027" format="1.0" version="1.1"}%
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---++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|


-- Main.AnnieSimpson - 14 Mar 2006

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