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This paper provides new evidence on the validity of using expert ratings of wine as a measure of wine quality for predicting the effects of climate change on the wine industry. We used Bob Campbell's ratings of New Zealand wines to look for a relationship between the ratings and climatic variables that predicts a plausible optimal growing-season temperature for the main wine varieties and wine regions in New Zealand. Such a relationship can be used to forecast the effects of climate change on wine quality to better understand when wineries need to adapt to a warming climate. We used both individual wine ratings and overall vintage ratings, averaged by region and variety from the individual ratings, to compare in a controlled setting their success in predicting plausible optimal temperatures. We find that using the vintage ratings produces substantially more precise and plausible findings than using the individual ratings. We conclude that there is great potential in using vintage data constructed from expert ratings for individual wines for climate change research. [ABSTRACT FROM AUTHOR]

This special issue reviews the state of biodiversity conservation in New Zealand, following the establishment of the Department of Conservation (DOC) in 1987. Here we summarise events that led to the formation of DOC, and the unprecedented series of changes in how biodiversity conservation has been viewed and conducted. Subsequent papers in this issue outline the successes, failures and key technological shifts in biodiversity conservation in New Zealand in the past 30 years; how visionary people and institutions have instigated conservation at landscape scales and in urban areas; the growing roles of Māori and non-Māori communities; and audacious new goals that reflect continuing attitudinal changes to the conservation of native biodiversity alongside the global and local implications of climate change. [ABSTRACT FROM AUTHOR]