New Zealand - Artensterben

Truffles (Gallacea scleroderma) and moas

Gallacea scleroderma: a truffle-like fungus endemic to New Zealand whose spores were once dispersed by moas and which plays a central role in the forest ecosystem. (© Zac Sanson, CC BY 4.0, via Wikimedia Commons)

17. January 2025 Doreen Fräßdorf

What links extinct moas, colorful truffles, and climate change?

New Zealand, known for its unique wildlife and flora, holds many secrets from the past. One of them was revealed by a recent study in Biology Letters: the extinct upland moas (Megalapteryx didinus) were not only majestic birds, but also played a central role in dispersing colorful, truffle-like fungi such

A taxidermied huia pair (female right, male left) at the Thinktank Birmingham Science Museum. This specimen is not up for auction. (© Dr Mirko Junge, CC BY-SA 3.0, via Wikimedia Commons)

15. September 2024 Doreen Fräßdorf

Taxidermied Huia Pair Expected to Fetch Up to NZ$128,000 at London Auction

A rare taxidermied pair of huia birds could fetch up to NZ$128,000 at an auction in London. Organized by Roseberys London, the auction is scheduled for October 2024. The huia pair, consisting of a male and a female, dates back to the late 19th century and is considered extremely rare.

A Haast's eagle attacks already extinct New Zealand moas. The largest moas were the female South Island giant moas. They could reach a weight of up to 300 kilograms. (© John Megahan, CC BY 2.5, via Wikimedia Commons)

15. September 2024 Doreen Fräßdorf

Haast’s Eagle

The largest bird of prey in modern times Before humans settled New Zealand about 700 years ago and introduced invasive species like cats and rats, there were no land-dwelling mammals on the islands – aside from three species of bats. Instead, the ecosystem was dominated by approximately 250 bird species.

Mecodema oconnori, verwandter des stephens-island-laufkäfer

Images of the Stephens Island Weevil are rare; the picture shows the ground beetle Mecodema oconnori, which belongs to the same genus. (© S.E. Thorpe, Public domain, via Wikimedia Commons)

9. September 2024 Doreen Fräßdorf

Stephens Island Weevil

From isolated paradise to endangered habitat Stephens Island, a small rocky island in the Cook Strait, is renowned for its unique wildlife. Despite covering only 1.5 square kilometers, the island boasts a remarkable ecosystem that was once home to numerous endemic species, including many land and seabirds. Among its notable

New Zealand’s unique bird life evolved in isolation over millions of years. The image, created at the end of the 19th century, shows a hunting scene of moas. (© Joseph Smit, Public domain, via Wikimedia Commons)

27. July 2024 Doreen Fräßdorf

In the Footsteps of Moas: Where New Zealand’s Flightless Birds Find Refuge

The settlement of the Pacific Islands by humans led to rapid waves of extinction for many animal species, whose dynamics are difficult to reconstruct. Among the affected species were the wingless moas, which were only found in New Zealand. These often massive birds went extinct in the 14th or 15th

Replica of Delcourt's giant gecko or Kawekaweau gecko from the Lille Natural History Museum in France. (© Musée d'Histoire Naturelle de Lille, CC BY-SA 4.0, via Wikimedia Commons)

26. May 2024 Doreen Fräßdorf

Delcourt’s Giant Gecko

The largest gecko in the world … In the early 1980s, French museum employee Alain Delcourt discovered a forgotten specimen of a single stuffed giant gecko in the basement of the Natural History Museum of Marseille, which had previously been on public display for years. This species was previously unknown

Buschmoa-Genom rekonstruiert (Anomaloptery didiformis)

The bush moa is the smallest moa species known to date. It was only slightly larger than today’s turkeys and weighed around 30 kilograms. The flightless bird went extinct about 500 to 600 years ago with the settlement of New Zealand. (© Auckland Museum, CC BY 4.0, via Wikimedia Commons)

25. May 2024 Doreen Fräßdorf

Deciphered Bush Moa genome provides insights into New Zealand’s extinct avian world

A team of evolutionary biologists has reconstructed the nearly complete genome of the bush moa (Anomalopteryx didiformis), a flightless bird from New Zealand that went extinct 500 to 600 years ago. Researchers from Harvard University, East Carolina University, Osaka University, and the University of Toronto sequenced ancient DNA from a

Huia (Heteralocha acutirostris) - Illustration by Keulemans

Male huias (bottom) reached a length of around 45 centimeters, while female huias (top) measured between 48 and 55 centimeters. The illustration is by John G. Keulemans from Walter Buller's A History of the Birds of New Zealand (1873). (© John Gerrard Keulemans, Public domain, via Wikimedia Commons)

4. July 2021 Doreen Fräßdorf

Huia

When males and females look like two different species The particularly pronounced sexual dimorphism between female and male huia caused confusion in the past. It even went so far that the English ornithologist John Gould in 1836 described male and female huia as different species. Even today, scientists debate how

Bones of the North Island giant moa at the Auckland War Memorial Museum. (© Auckland Museum, CC BY 4.0, via Wikimedia Commons)

26. February 2018 Doreen Fräßdorf

North Island giant moa

The second-largest moa species This moa species inhabited scrub, grassland and dune landscapes as well as forests on New Zealand’s North Island. The North Island giant moa is considered the second-largest moa species. The largest species is the South Island giant moa, which was endemic to New Zealand’s South Island.