Citizen Science

Collecting data collaboratively - for the good of our biodiversity


To better protect the native flora and wildlife of New Zealand we all love so much, we need to understand it's current state and how it changes overtime. We do this by monitoring different elements of biodiversity. Pest Free Kaipātiki has undertaken the Citizen Science chew card campaign in 2017, 2018, 2019, 2020 and 2021.​

In 2021, 48 fantastic Kaipātiki volunteers got involved, giving over 205.1 volunteer hours towards monitoring our biodiversity. Thank you everyone who took part. 


1) Rat Chew Card Counts 2017, 2018, 2019, 2020 and 2021

Pest Free Kaipātiki has these chew card results for rats in 2021:

Click on the image above to see the chew card results for rats from 2017 to 2021. 

Link to the running pest abundance maps from 2017 to 2021. Please open this document to have a look at all the maps and graphs generated from this year's campaign.


For those of you who have not heard about the chew card campaign, our survey places out corflute cards impregnated with a non-toxic paste (peanut butter) along survey lines in over 43 reserves in Kaipātiki. Rats, mice, possums, hedgehog, stoats and even other creatures like dogs and cats bite the card as they are attracted to the bait, and leave behind distinctive marks that we can identify. The results from the campaign allow an in-depth look at where pest control is needed the most, or where an increased diversity of traps is needed. We can also see how amazingly well our reserves are going! You can see from the above image, that we are gradually getting less and less red dots across Kaipātiki!

If you would like to be involved with next years (2022) campaign, please email

Thank you to all those who were involved in the Pest Free Kaipātiki chew card campaign this year!

To look at the full write up, please follow this link here.

Ecological Monitoring

As well as the chew card campaign, we also have the ecological monitoring campaign. The ecological monitoring campaign is a small part of the overall Pest Free Kaipātiki citizen science campaign. Previously we have divided monitoring into different kinds of animals, such as aquatic, reptiles, invertebrates, birds, and plants. This year, and onwards, we are changing this format so that all forms of life are captured under one project. This is all done using iNaturalist! 

If you'd like to learn more about this campaign and how to get involved, head on over to the Ecological Monitoring Webpage.

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