Resolving a genetic mash-up: reconstructing an accurate evolutionary history of kākāriki

Prioritising species conservation and over-stretched government funding is built upon an accurate understanding of evolutionary relationships and taxonomy. But what if that evolutionary history is wrong?

More importantly, what are the consequences for endangered biodiversity as conservation funding and resources are re-assigned? Numerous examples have come to light in recent years where genetic techniques have shown previously recognised endangered or threatened birds do not exist, such as the Cape Verde kite which was formally considered to be the world’s rarest feathered predator. Continue reading “Resolving a genetic mash-up: reconstructing an accurate evolutionary history of kākāriki”

From Aptornis to Zosterops: What can be done about an extinction crisis 50,000 years in the making?

Conservation comes down to values. Do we only focus on the charismatic animals and the things we can see, or do we conserve the out-of-sight, out-of-mind Lilliputs? If that world collapses, you can be sure ours is next.

I’m standing in the basement of our National Museum Te Papa Tongarewa surrounded by the ghostly remains of New Zealand’s bygone bird fauna.

Around me are row upon row of subfossil bones of giant moa to tiny wrens. Vividly preserved bird skins stare at me with vacant eyes as if awaiting word to stand up as sentinels to the currently unfolding biodiversity crisis, like those in Bill Hammond’s famous birdman paintings. Continue reading “From Aptornis to Zosterops: What can be done about an extinction crisis 50,000 years in the making?”

Sentinels of change: prehistoric penguin species raise conservation conundrum

Fossil hunting along the rugged and beautiful Wairarapa coastline is a dangerous exercise. Prevail against the harsh winds that blow you off your feet and fossil penguins will be your reward – prehistoric nuggets of gold from a lost world that is only now yielding its secrets.

Risking life and limb: At the rugged Te Kaukau Point, bones of prehistoric creatures from a lost world can be found eroding out of the coastal banks. Photo courtesy of Alan Tennyson.

Alan Tennyson and Peter Clayworth are at Te Kaukau Point, looking for bones eroding out of the vertical coastal bank dissected by the 1718-year-old Taupo pumice layer. This line gives a good clue to the relative ages of bones above and below it. The stark, isolated Wairarapa coast is being constantly eaten away by the sea, erasing Aotearoa’s biological heritage. Regular expeditions are the only way to salvage what’s exposed from these rich deposits. Moa and fur seal bones are the most obvious – but there is a wealth of smaller bones that take more careful searching to find and even more patience to identify. Continue reading “Sentinels of change: prehistoric penguin species raise conservation conundrum”

Will the real frog please stand up…

Luke Easton, a PhD student from our laboratory studying Conservation Palaeontology, is about to drop into Martinborough’s Cave of Bones.

Abseiling into the tomo he is assaulted by the putrid rich smell and sight of rotting sheep carcases that lie between him and his treasure. You see, Luke is on the hunt for the bones of some of the smallest members of New Zealand’s lost biodiversity club: Leiopelma frogs, one of our taonga that few New Zealander’s will be lucky enough to see. Once through the sheep carcass soup and a tight squeeze, laid out before him along the cave passage were the remains of moa, kakapo, kiwi, takahe, tuatara and the tiniest of frogs. Continue reading “Will the real frog please stand up…”