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Database Title

10.6 Landcare Research Invasive Weeds Database.
Keywords
Type1.
Type 11.		 Weeds, naturalised plants, distribution
weed characteristics
Abstract This attribute database for native and exotic naturalised plants is currently being established. The focus will be to predict which vegetation communities are vulnerable to invasion by weed species and which plant species are likely to become/are invasive.

At present there is no spatial distribution data in the database. This may change in future depending on, for example, the future directions of other New Zealand weed databases.
Geographical Coverage New Zealand
Dataset start date. 1998
Dataset end date. In progress
Status/currency. Current
Update frequency. As information becomes available
Maintenance. The database is being developed by Landcare Research as part of a PGSF research programme on invasive weeds. It will be maintained by Landcare Research.

 

Technical Evaluation

  
Parameters- what is measured The following parameters are recorded for each native and introduced species (where relevant) on the database:
  • Altitude, climate range
  • bio status
  • reason for introduction
  • naturalisation period
  • region/country of origin
  • various plant attributes including life form, leaf
  • form; regeneration, phenology and reproduction attributes
  • germination requirements
  • pollination
  • seed production and viability
  • seedbanks
  • flowering season
  • dispersal methods
  • fruit characteristics and timing and dispersal
  • behaviour/growth form
  • various attributes of the communities it is found in e.g. vegetation type, nutrients status, hydrological source.
Parameters - what is calculated N/A
Methods used to measure parameters N/A
Secondary sources of data A variety of information sources are used
Scale of use N/A
Number of records Unknown
GIS compatibility. There is no site referenced data and so the database is not GIS compatible.
Available formats for users. Computer database
Access constraints. At this stage the database is only accessible for Landcare Research staff.
Measurement Accuracy To be completed by database manager.
Completeness of dataset To be completed by database manager.
Positional accuracy To be completed by database manager.
Database steward Landcare Research
Database custodian Landcare Research
Database custodian contact person Bill Lee
Database custodian Contact
Address
Phone
Fax
Email		 Private Bag 1930
Dunedin
+64 3 477 4050
+64 3 325 2418
leeb@landcare.cri.nz
References  
Date metadata record prepared. October 1999
Author of metadata record. Victoria Froude

 

Management Evaluation

  
Original purpose.

To develop an invasive weed database for research purposes. The focus is to be able to predict which plant communities are vulnerable to invasion by invasive weeds and which plant species are/likely to become invasive.
Relationships with classification systems. N/A
Relationships with other databases

The Department of Conservation is developing a national weeds database. Regional councils also have weed databases for their regions. The relationship between the various weed databases needs defining.
Known relationships with proposed EPIP indicators. N/A
Who uses this database? Landcare Research
Public awareness of the database Nil
Database strengths.
  • There are clear structures and protocols.
  • The database is intended to be comprehensive and includes both native and alien species.
  • The database can answer a large number of questions and create a number of different types of data files.
Database limitations.
  • There are some questions that cannot be answered because of the database structure.
  • At this stage the database does not contain spatially referenced data.
  • It is unclear how this database links to other databases on weeds.

 

What are the Current and Emerging Uses of the Database for:

  
Assisting with determining historic state/baseline. Historic records will allow the database to provide some information on historic state. This will be limited because the database does not contain spatially referenced data.
Assisting with determining current state/baseline. The database will provide information about current weed baselines. This will be limited because the database does not contain spatially referenced data.
Assisting with modeling possible future outcomes. The database is being used to assist with modeling future outcomes for invasive weeds and the communities that they may/are invading.
Risk assessment. As above.
Monitoring site selection and sample design. N/A
Aggregating and reporting data locally, regionally or nationally. The database operates at the national level.