So yes, I was lucky enough to head back to New Zealand’s South Island to collect the last of my data from the field experiments I set up at the end of last year. Just a three week trip but enough time to allow me to visit all 15 sites (from Nelson down to Dunedin), record how many plants were dead, how many had frost damage and how much herbivory had been going on. Currently my host plant (Macropiper excelsum) has a natural distribution down to s southerly limit at Banks Peninsula. This experiment was designed to investigate whether this plant could exist south of its current distribution. If so, it may indicate that the environment is climatically suitable and there is the possibility that it is not found closer to the poles because its dispersal is being constrained by isolation (i.e. fragmentation) of its associated native forest habitat.
Photo provided by Ben Rodriguez
Having the help of my field assistant Ben was invaluable, he was an absolute star throughout the three weeks, not only assisting with the work in the field but also with all the post-field processing. All of the data was collected in over a whorl-wind tour of the sites and we managed to get a significant amount of the herbivory assessments done at Lincoln University (thank you to all of those that helped at this Uni during my time of need). Although, the statistical analysis still needs to be done, on first appearances we noticed a few trends. Surprisingly we found that the kawakawas planted in the novel locations were very healthy, far more so than in the other locations. Interesting. Obviously I do not want to jump to any interpretations without the statistical analysis but I am looking forward to seeing what kind of trends we get from these data.
So, back in the UK now and on to the analysis and write up, will keep the blog posted with any interesting findings and any relevant environmental issues going on in the news…
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