Biodiversity - Weed Mapping

A map showing weed distributions by species in two different years

Created by: canterburymaps
Last updated: Monday, October 7, 2019

Description

Note: the two maps (2013 and 2018) are not directly comparable due to differences in effort and mapping accuracy between the two surveys. Additional effort was directed to the upper extent of the weeds in the 2018 survey.

For 2018 most key riverbed weed species (broom, gorse, crack willow, grey willow and tree lupin) remain widespread, but with no significant increase in their distribution since 2013. In some places there has been a noticeable reduction in extent and density as a result of recent weed control work. Conversely there has been a substantial increase in the distribution and abundance of false tamarisk and to a lesser extent stonecrop. This is based on a variety of information that includes data not in the 2013 maps

Map Credits

Access and Use Constraints

This work is licensed under a Creative Commons Attribution 3.0 New Zealand License

Map Contents

Basemap:

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