Saving the Giant Wētā, the “God of Ugly Things”

Conservationists in New Zealand work to save the Mahoenui Giant Wētā, a native Endangered insect threatened by invasive rodents.

The Mahoenui Giant Wētā is one of the world’s largest insects. The mouse-sized insect is endemic to the Mahoenui region of New Zealand. Giant Wētā are considered by many to be ugly. They smell, and are uncomfortably large. The insect’s name is derived from the word wētāpunga–“God of Ugly Things” in the indigenous Māori language. This Endangered native Wētā lacks the cute appeal and stardom received by many of New Zealand’s Endangered species, but it’s nonetheless an important member of the native ecosystem. It’s not unusual for threatened insects to be overlooked:

The Red List of threatened species, compiled by the International Union for Conservation of Nature, includes 1268 insects, yet most of them have gotten no attention.

Found only in New Zealand, Wētā are dated living nearly 65 million years ago. After the dinosaurs disappeared, rodent species and other small mammal populations exploded on land masses. However, New Zealand formed into an island 15 million years before the mammalian takeover and biodiversity took a different route. Native ecosystems in New Zealand evolved nearly mammal-free, permitting native insects and flightless birds to thrive.The Giant Wētā grew enormously in size and population thereafter. Among other positive contributions, they are known to disperse native plant seeds.

Now, fast forward to nearly 800 years ago; invasive rats scurried up the shores of New Zealand. They arrived by boat, hitchhiking with European explorerers. Lacking defenses against the invasive predators, Giant Wētā (along with many other native species) became easy prey. Over time, the invasive rats fed heavily on Giant Wētā population, pushing the species to the edge of extinction.


Mahoenui Giant Wētā finding refuge on a Gorse plant. Credit: Steve Reader, Geografpix Photography

In 1962, conservationists made a discovery in a pasture in Warrenheip, New Zealand: non-native goats feeding on a non-native plant may be the only reason the Mahoenui Giant Wētā survived. Farmers introduced Gorse bush and it spread wildly, overtaking vast areas of New Zealand country. Non-native goats nibble and graze the Gorse branches down, creating an impenetrable fortress for Giant Wētā. The thorns keep the Endangered native insect safe from invasive rodents. Although the Gorse bush is a brilliant accidental refuge for Giant Wētā, this habitat is far from ideal. Gorse is fire-prone, and some researchers fear that fire can cause the extinction of Giant Wētā. Also, females must leave the bush to successfully lay eggs—digging a hole and depositing the eggs into the ground. Exposed and unprotected from invasive rodents, females are an easy target and struggle to successfully reproduce.


Non-native Gorse bush found in Kaimai Mountain range, North Island, New Zealand. Non-native goats chew the branches down, creating a safe haven for the Mahoenui Giant Wētā. The thorns prevent invasive predators from eating the Endangered native insect. However, the plant is not ideal for the region. Credit: Maurice

In 1990 the original pasture was made into the Warrenheip Reserve by the New Zealand government. The goal: to save the Giant Wētā from extinction by removing invasive mammalian predators and safekeeping the Giant Wētā by erecting special fencing. Conservationists are researching ways to safely reintroduce Giant Wētā into their native habitat. Removing invasive predators will secure a recovery for the Endangered insect.

Restoring native ecosystems is a priority in New Zealand.The government’s plan for the country to be Predator Free by 2050 lends hope to even the ugliest of Endangered species. Though the Mahoenui Giant Wētā is not New Zealand’s cutest, the insect is crucial to a healthy native ecosystem, and therefore rightfully needs be protected from invasive predators.

Featured Photo: Mahoenui Giant Wētā finding refuge on a Gorse plant. Credit: Steve Reader, Geografpix Photography

Learn about other species of Wētā.

Source: Science Mag

About John Brodie

John has recently received scholarship to enroll with Prescott College to study Marine Conservation via the Kino Bay Center in the Gulf of California. A storytelling career started while living in Sweden, searching for surf in the Baltic Sea. His writing and photography have since evolved into contributions in support of sustainable material efforts within the surf industry, publishing work with Patagonia and developing content for many-alike. New to Island Conservation, John is thrilled to join the communications team and to share the stories about saving island species from extinction. When not writing, you can find John and his dog surfing and camping along the West Coast.

View All Posts

Follow Island Conservation on Social Media

[ism-social-followers list='fb,tw,li,youtube,instagram' template='ism_template_sf_1' list_align='horizontal' display_counts='false' display_full_name='true' box_align='center' ]

[ism-social-followers list='fb,tw,li,youtube,instagram' template='ism_template_sf_1' list_align='horizontal' display_counts='false' display_full_name='true' box_align='center' ]

Midway Atoll conservation




%d bloggers like this:
Send this to a friend

acv pills for weight loss pills used for overdose and weight loss zxt weight loss pills weight loss pills phendimetrazine which is the shark tank keto diet pills ginger diet for weight loss keto diet flank steak recipes organic diet for weight loss preped meals juicing recipes for keto diet safesr weight loss pills diet meal plans to lose weight lipozene weight loss pill lawsuits easiest diet to lose weight fast which weight loss pills actually work i exercise but dont diet will i still lose weight best pill for quick weight loss adios weight loss tablet what does keto diet pills do to you physically weight loss 5 2 diet diet plans quick weight loss weight loss for women diet veggi with eggs weight loss pills online no prescription weight loss expanding pills weight loss without diet change do water pills help loss weight keto tone diet pills ingredients black seed oil pills for weight loss maria menounos weight loss diet how long do weight loss pills take to work weight loss prescription medicine alli weight loss pills walmart canada best energy pills for weight loss medical weight loss sample diet indian diet chart for weight loss pdf candy for low fat diet weight loss weight loss pills healthy options low carb diet and weight loss management lose weight boxing diet diet and training for weight loss keto diet anf fat burning pills

best male sexual enhancers green sex pills enduros black male enhancement do penis pills really work med best male performance enhancer black dragon male enhancement reviews over the counter sex pills that work most common erectile dysfunction drugs free male sexual enhancement pills alcar supplements for ed pxl male enhancement on amazon male enhancement pills that work instantly black ant strong male enhancement male enhancement htx sting male enhancement 2 pack male enhancement pills penis enlarger sleeve penile enlargement atlanta ga what supplements increase nitric oxide male enhancement topicals what supplements to take for ed supplements dont work what is the best extenze pill real penis enlargement surgery korea male enhancer how long best male enhancement for girth vacc tech penis enlargement clyinders penis enlargement reconstruction penis enlargement made me too big top ingredients in male enhancement pills sex enhancement pills reviews male enhancement hypnodaddy common chinesesex enhancement drugs best ed medication off coubter sexual enhancement buy penis pills online blood pressure pill names supplements for labido banned male enhancement pills erectile dysfunction prescription drugs

cbd oil concentrate cbd oil and transplant patients best thc free cbd oil cbd madison wi revive cbd cbd with nicotine michigan cbd oil cbd oil alcoholism cbd derived from hemp treating cancer with cbd prosper cbd adelaide cbd to airport how to take cbd sublingually a cbd remedy cbd plus gold natures rhythm cbd oil reviews the cbd apothecary cbd reduces inflammation is cbd legal in hawaii cbd and parkinsons video cbd and circulation cbd oil pay with paypal cannabis vs cbd oil effects cbd oil cbd clinic samples benefits of pure cbd oil nutiva cbd oil review does aleve interact with cbd oil social cbd drops cbd seizure drug beta caryophyllene vs cbd ignite cbd stock how to take cbd oil for pain examine cbd dab pen cbd oil 20 to 1 cbd hemp flower drug test does cbd oil make your urine dark puur cbd gummies cbd oil cured anxiety cbd oil recommendation