This research theme aims to determine the role of landscape attributes (e.g., surrounding land-use heterogeneity, distance to urban or forest land-use), ecosystem characteristics (e.g., size, age, perimeter to edge ratio), and species traits (e.g., shade tolerance, growth rate) on woody weed incursion in mānuka and kanuka shrublands.

The research will undertake surveys of weed occurrence in a wide range of mānuka and kānuka shrublands across Aotearoa New Zealand and relate them to the landscapes in which they are found. These surveys will be complemented by sowing experiments to introduce non-native plant species into the edges and centres of the shrublands to assess the resilience to invasion by different species.  It aims to take a hierarchical approach to identify what makes an ecosystem resilient or vulnerable to weed incursion at different spatial scales.

Analysing national surveys of weed invasion in several hundred manuka/kanuka shrublands across New Zealand and linked these to historical data to provide a unique perspective of invasion over time and space.

This theme closely relates to the research from 1.1 Ecosystem Health where the health of mānuka and kānuka shrublands is being investigated and also Recloaking Papatūānuku: mānuka me te kānuka.

Research Team

Dist Prof Philip Hulme

Dist Prof Philip Hulme

Roles:

Deputy Director

Researcher

Institution:

Lincoln University

Assoc Prof Margaret Stanley

Assoc Prof Margaret Stanley

Roles:

Researcher

Institution:

University of Auckland

Dr Laureline Rossignaud

Dr Laureline Rossignaud

Roles:

Postdoctoral Fellow

Institution:

Lincoln University

Diana Borse

Diana Borse

Roles:

PhD student

Institution:

University of Auckland

Friederike Espinoza

Friederike Espinoza

Roles:

PhD student

Institution:

Lincoln University