Ever wonder where Monarch butterflies go for the winter?
The Monarch Butterfly New Zealand Trust is looking for ‘citizen scientists’ throughout the country to report sightings
as the Monarchs follow their annual migration. A degree is not needed; anyone can take part, and everyone, schools
included, are welcome to join the Trust’s annual project.
Secretary Jacqui Knight says if we are to conserve species effectively it is vital we monitor how they are faring. Small
white tags, each with a unique number, are being applied to the wings of migrating Monarchs. Already tagged Monarchs are
being seen on their journeys and people are reporting tag numbers to the website of the Trust.
“The status of our flora and fauna depends on the effects of climate change, pollution, alien species and land
management,” Jacqui said. “We need to know more about our insects to predict the impacts of such change and to develop
an appropriate response.”
Butterflies are uniquely placed to act as indicators of environmental change.
“By tagging and following Monarchs we can use them as indicators of the status of our environment here in NZ. Tagging
serves a dual purpose – not simply by collecting critical data, but also by introducing people to the method and purpose
of scientific investigation.”
Monarch butterflies typically form large clusters, sometimes containing hundreds or thousands of butterflies, on trees
in well-sheltered areas over the colder winter months. Until the Trust started tracking Monarchs there was little
research being done as to why butterflies appeared to be retreating from urban areas.
“This is important,” says Jacqui. “We need to find out where the Monarchs overwinter because this late summer generation
forms the breeding stock for next year’s Monarch population.”
It’s not only Monarchs: Data is needed on other butterflies and moths too, such as the Forest Ringlet and Red Admirals.
Entomologists are concerned about NZ’s endemic Lepidoptera.
South Island lepidopterist Brian Patrick talks of a tiny purple copper butterfly which now exists only in one coastal
car park.
“It’s teetering on the very edge of survival,” he said.
“The plight of our butterfly fauna is heavily dependent on human respect if they are to survive and thrive. Several
butterflies are threatened with extinction even before they are described.”
Overseas countries have learned the hard way – it is not too late for us to undertake research. People are being
encouraged to report sightings of all butterflies and day-flying moths on the Trust’s website, and also to help with
tagging.
In Britain FMCG giant Marks & Spencer is raising awareness of the importance of butterflies and moths, encouraging sustainable agriculture and so
improving the environment for everyone.
The Monarch Butterfly New Zealand Trust is keen to involve gardeners, nature-lovers, trampers, schools, and
home-schooled children in these projects.
All the information needed to register and to play your part is under projects on the Monarch Butterfly NZ Trust
website: www.monarch.org.nz. If you have don’t have the technology, you can write to the Monarch NZ Trust, PO Box 44100, Pt Chevalier, Auckland
1246.