• Publications
  • Influence
We studied the invasion of a New Zealand mountain beech (Nothofagus solandri var. cliffortioides) forest by the exotic perennial herb, Hieracium lepidulum. We used data from 250 randomly locatedExpand
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Mutualisms with the wreckage of an avifauna: the status of bird pollination and fruit- dispersal in New Zealand
Worldwide declines in bird numbers have recently renewed interest in how well bird-plant mutualisms are functioning. In New Zealand, it has been argued that bird pollination was relativelyExpand
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Mapping tree density at a global scale
The global extent and distribution of forest trees is central to our understanding of the terrestrial biosphere. We provide the first spatially continuous map of forest tree density at a globalExpand
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Rate of tree carbon accumulation increases continuously with tree size
Forests are major components of the global carbon cycle, providing substantial feedback to atmospheric greenhouse gas concentrations. Our ability to understand and predict changes in the forestExpand
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Using species combinations in indicator value analyses
Summary 1. Indicator species are often determined using an analysis of the relationship between the species occurrence or abundance values from a set of sites and the classification of the same sitesExpand
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Functional trait space and the latitudinal diversity gradient
Significance We present a conceptual framework for testing theories for the latitudinal gradient of species richness in terms of variation in functional diversity at the alpha, beta, and gammaExpand
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Positive biodiversity-productivity relationship predominant in global forests
Global biodiversity and productivity The relationship between biodiversity and ecosystem productivity has been explored in detail in herbaceous vegetation, but patterns in forests are far less wellExpand
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Reconstructing Holocene water tables in New Zealand using testate amoebae: differential preservation of tests and implications for the use of transfer functions
Testate amoebae analysis is used to provide the first quantitative reconstruction of Holocene surface wetness changes from a Southern Hemisphere ombrogenous bog. Water-table depth and surfaceExpand
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Ecologically sound efforts to manage or reintroduce populations of rare species require detailed knowledge of species habitat requirements. However, the fact that such species are rare implies thatExpand
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New Zealand's forest and shrubland communities: a quantitative classification based on a nationally representative plot network.
Question: What are the composition, structure and extent of contemporary, common woody vegetation communities in New Zealand? How do the woody plant communities we describe, based on representativeExpand
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