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Posts Tagged ‘invertebrates’

Photo: John and Suzanne’s Mom.
Fungi and algae receive less than 0.2% of conservation funding, according to a new study. Small speices never seem as cool as rhinos and elephants.

Is it human nature to pay more attention to the large and aggressive than to the small and quiet? As a female, I think so.

At the Guardian, Mariam Amini writes about how that tendency, when applied to the study of the natural world, can be harmful to the planet.

“Most global conservation funds go to larger, charismatic animals,” she says, “leaving critically important but less fashionable species deprived, a 25-year study has revealed.

“Scientists have found that of the $1.963bn allocated to projects worldwide, 82.9% was assigned to vertebrates. Plants and invertebrates each accounted for 6.6% of the funding, while fungi and algae were barely represented at less than 0.2%.

“Disparities persisted among vertebrates, with 85% of all resources going to birds and mammals, while amphibians received less than 2.8% of funding.

“Further funding bias was found within specific groups such as large-bodied mammals towards elephants and rhinoceros. Although they represent only a third of that group, they were the focus of 84% of such conservation projects and received 86% of the funding. Meanwhile mammals such as rodents, bats, kangaroos and wallabies remained severely underfunded, despite being considered endangered.

“ ‘Nearly 94% of species identified as threatened, and thus at direct risk of extinction, received no support,’ said Benoit Guénard, the lead author of the study. ‘Protecting this neglected majority, which plays a myriad of roles in ecosystems and represents unique evolutionary strategies, is fundamental if our common goal is to preserve biodiversity.’

“Alice Hughes, a coordinating lead author of the research, said: ‘The sad reality is that our perception of “what is threatened” is often limited, and so a few large mammal species may receive more funding than the near-12,000 species of reptile combined.

“ ‘Not only does this limit our ability to implement protective measures, but it closes opportunities to researchers. I have lost count of the number of times collaborators have switched taxa [organism populations] purely because theirs was difficult to fund. This leads to a chicken and egg situation – some of the groups with the highest rates of recent extinction, like freshwater snails, have the most outdated assessments.’

“The study, led by Guénard and colleagues at the University of Hong Kong, analyzed 14,566 conservation projects spanning a 25-year period between 1992 and 2016. …

“ ‘We are in the midst of a global species extinction crisis,’ said research author Bayden Russell. … ‘We need to change how we think about conservation funding. The community needs to be educated about the value of biodiversity and protecting species that are under threat.’ …

“ ‘Governments, in particular those which represent the main pool of funding, need to follow a more rigorous and scientifically driven approach in conservation funding,’ said Guénard.”

More at the Guardian, here.

And be sure to check Anna Kuchment’s Boston Globe interview with Mandë Holford, here, about a poisonous snail with lifesaving properties. It reads in part: “Some of the most powerful drugs in our medical arsenal come from animal venom. Ozempic was derived from Gila monsters, a lizard native to the southwestern US; Prialt, used to treat chronic pain in HIV and cancer patients, comes from deadly cone snails; and captopril, the first ACE inhibitor, a class of drugs used to treat high blood pressure, came from Brazilian pit vipers.”

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Photo: Baker Consultants Ltd. via Living on Earth.
Listening to sounds in the soil is a minimally invasive way to measure biodiversity underground.

Remember when you were a kid and thought millipedes and bugs in general were icky?

It turns out, those tiny critters in the soil help to make the planet healthy. Just listen to them.

From Luca Ittimani at the Guardian: “Ever wondered what the Earth sounds like? New research suggests healthy soil has a distinctive soundtrack of its own – the crackles, pops and clicks of ants and worms bustling around underground.

“Scientists from Australia’s Flinders University listened to microphones planted in the ground to see if invertebrate instrumentals are a good indicator of biodiversity and soil health. Land filled with plants and tiny animals carried diverse underground sounds, while cleared land only had bland white noise, they found.

“ ‘It’s a bit like going to the doctor,’ the ecologist Dr Jake Robinson said. ‘They put a stethoscope on your chest, take a health check, listen to your beating heart … we’re doing something similar in the soil.’ He said the effectiveness of the microphone method could make it easier for researchers, conservationists and farmers to find and fix soil degradation. …

“Insects and other invertebrates build up soils, improve their nutrient content and prevent erosion, so their presence is a good indication of soil health.

Soil full of worms carries low bubbly sounds, while lighter, six-legged ants make frequent higher-pitched clicks, Robinson said.

“ ‘A millipede has lots of tiny legs and they make little tapping sounds, whereas the snail has a more slimy glide sound,’ he said.

“Because the noises cannot be heard by the human ear, scientists set up microphones that pick up vibrations from contact with the dirt – then amplify the recording by 20 decibels. …

“Robinson and his colleagues reviewed hundreds of hours of recordings from 240 locations around Mount Bold in South Australia, near Adelaide, adding to previous research in the UK. … The new study confirmed the acoustic method worked just as well as traditional methods of checking soil health, which include expensive DNA testing or destructive methods such as digging up the soil or laying traps for invertebrates. …

“Audio tech may even be able to improve soil health. Robinson’s forthcoming research found playing certain sound frequencies can speed up growth of fungi and bacteria that fend off plant diseases.”

At the Guardian, here, you can listen to healthy soil. Similarly, at Living on Earth, here, or at The World, here.

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