I've often discussed citizen science and how it varies from pie-in-the-sky research to projects with practical goals that may be achievable within a lifetime. When it comes to conserving native species New Zealand has a plethora of public engagements, including the Garden Bird Survey and Great Kererū Count (the latter being the country's largest citizen science project.) In a nation that is slowly waking to the realisation that it is far from '100% Pure', concerted efforts are finally be made to secure a future for beleaguered native fauna (and to a lesser extent flora, although few are seemingly aware of the interdependencies).
In late 2016 I wrote a post about the Predator Free 2050 scheme, focusing on how impractical it seemed. There was good reason for this: the University of Auckland estimated that it would require an astonishing NZ$9 billion to implement, a figure approaching 4% of the national GDP. Five years on and it appears this negativity was well deserved, as the project appears woefully underfunded; according to their website so far only NZ$178 million has been spent on the scheme. By comparison the annual budget for controlling possums, rats and stoats is NZ$114m, so it could hardly be deemed a flying start. There are an estimated 30 million possums in New Zealand, never mind the mustelids, rodents and other lesser pest species; the obvious implication is that numbers this large will require equally immense resources to eradicate them.
So what's to prevent this from being just another example of 'doomscrolling', of which have plentiful examples at the moment? After all, with billionaires now spending precious resources on racing to become astronauts - presumably superyachts are so last decade - it could be argued that those with the funds for the task just aren't interested in anything as mundane as conservation. It's often said that it is the people who make a place and in the case of New Zealand, it could just be the citizens - both with and without science - that make the difference. Kiwi ingenuity (that's the people, not the bird) and the 'number eight wire' mentality have enabled a young nation to punch well above its weight in so many fields. Can they do likewise in conservation?
Let's start with the science. New Zealand's rugged landscape requires a smart approach to predator control; there are so many reasons why flying thousands of bait-dropping helicopter missions would not be a good idea, not least due to the impossibility of funding them. Various projects are therefore now looking to lower the cost of poisoning and trapping, seeking robust maintenance-free solutions that can survive in the wilderness with minimal human intervention. From new thermal imaging cameras to auto-reset bait stations containing long-lasting toxins, research projects are showing that small-scale developments can make enormous differences to pest eradication. Hopefully, some of these devices will be out in the field in useful numbers within the next few years.
Often unsung heroes, there are also thousands of New Zealand citizens doing unpaid conservation work. I've met various volunteers for the Department of Conservation who spend their weekends climbing up and down knotted ropes and wading through icy streams in order to replenish bait boxes and reset traps. Many are retirees and some are ex-military - it's physically demanding and not at all glamorous, but can very satisfying work. The nation has a long history of such volunteering, something which has escalated in the past forty years with the setting up of predator-free fenced mainland sanctuaries and small sanctuary islands. To date, there are approximately 120 such refuges for native wildlife, many having been initiated by their local community and now being sustained by volunteers.
Even businesses are belatedly getting in on the act, giving their staff paid workdays to undertake volunteering such as planting and weeding within sanctuaries and coastal rubbish clean-ups. Earlier this year (between lockdowns of course) I was lucky enough to spend a day on Motuihe Island in the Hauraki Gulf, one of a group of thirty or so volunteers removing the noxious invasive plant woolly nightshade. What was amazing was seeing small flocks of native birds such as saddleback/tīeke, New Zealand parakeet/kākāriki and whitehead/pōpokotea, as opposed to the usual one or two you might see elsewhere (such as in zoo enclosures). Clearly, the planting of native species and foreign pest eradication - including abseiling to reach some of the weeds - has paid off beautifully.
Small islands are one thing, but what about the mainland? The nation's capital, Wellington, might be claimed by its inhabitants to be leading the way. Predator Free Wellington is the umbrella organisation for a range of projects that are aiming to eradicate pests from 30,000 hectares in and around the city. Already being possum free, the Miramar peninsula has been the starting point of rodent eradication, with almost 10,000 bait stations and traps placed at regularly intervals, mostly in residential gardens. The project is labour-intensive but still costs millions, so the hope is that by setting an example of what can be achieved, other regions in the country will follow suit. Whether their local councils will prove as farsighted as the capital's remains to be seen.
Like climate change mitigation, it seems that engaging and motivating the general public will be the only way to achieve a predator-free New Zealand, whether in 2050 or most likely at some point later. If this seems a bit naive - and overly optimistic, especially when compared to my initial assessment in 2016 - then last year's incredible work by the population to contain COVID-19 made New Zealand a frequent feature on international headlines, something that was previously a rare event. The 'team of five million' showed the naysayers (most of these, in my experience, being middle-aged white men) that even a relatively small group of people, globally speaking, could provide inspiration and be a role model to kick-start action elsewhere. If a lot of people take a little action, surely it can combine into an enormous amount of change? Much depends on the success - and cost - of Predator Free Wellington; if the nation's capital can achieve it the snowball effect might just take off, with local groups of volunteers making up for the lack of support from government and big business.
What's in it for the volunteers, you might ask? The health benefits, from physical exercise to reducing stress and anxiety, are now well established. In addition, those who dedicate their spare time to unpaid conservation work can learn new practical skills, meet like-minded people, engage in teamwork and gain enjoyment from the sheer empowerment - knowing that you are actually achieving something useful. According to the Department of Conservation, it is estimated there are currently 200,000 active volunteers in this sector, which might not sound like a large number until you realise that it accounts for almost four percent of the New Zealand population!
Considering the history of the fenced reserves and sanctuary islands, it seems clear that motivating local communities can achieve wonders. If the Predator Free project is to succeed, we need a widespread engagement of the general population. New Zealand is far from alone, but having lost over fifty birds (more if you include the Chatham Islands), three lizards, three frogs, a bat, a freshwater fish, four plant species and numerous invertebrates, now is the time to act. Despite the negative effects of pollution and habitat loss due to development, it is a sobering thought that invasive fauna are equally capable of inflecting immense damage on a previously isolated ecosystem. As this plaque shows, many species were lost prior to the landing of the first Europeans: the original human inhabitants of New Zealand arrived less than a thousand years ago, but a combination of the introduced Polynesian rat and Polynesian dog, and their own hunting prowess, rapidly kick-started the eradication process.
Well, this is my last post, as least for a while. After twelve years I've learnt an enormous amount, but my sustainability champion voluntary work - engaging with over 5,000 work colleague on climate change mitigation and wider environmental issues - is taking up my spare time. If there is a moral to this story, it's a simple one: let's act - now!
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