New study finds that the nutritional value of prey within a single species can widely vary, offering key insights for food web dynamics and ecosystem change The hunt is on and a predator finally zeroes in on its prey. The animal consumes the nutritious meal and moves on to forage for its next target. But how much prey does a predator need to consume? Following a period of massive starvation among animals living along the California coast, University of California…
Improved approach to marine conservation aligns ecological restoration with human well-being Could 2025 be the year marine protection efforts get a “glow up”? According to a team of conservation-minded researchers, including Octavio Aburto of UC San Diego’s Scripps Institution of Oceanography, the moment has arrived. In a new study published Feb. 6 in the journal Frontiers in Marine Science, Aburto and a multinational team of marine scientists and economists unveil a comprehensive framework for Marine Prosperity Areas, or MPpAs. With…
Many U.S. forests are privately owned, particularly in the Eastern and North Central part of the country. This makes control of invasive plants and pests challenging because efforts must be coordinated across landowners. A new study from the University of Illinois Urbana-Champaign explores how differences in ownership motivation affects willingness to control, and how economic incentives can be implemented most efficiently. “Some own the land for recreational purposes, some own it because they want to produce timber, and some are…
A new study has estimated it would cost $15.6 billion per year for 30 years to prevent extinction for 99 of Australia’s priority species. The research, led by Griffith University’s Centre for Planetary Health and Food Security with WWF-Australia and the University of Queensland, highlights the urgent need for increased funding to combat threats such as habitat destruction, invasive species and climate change. Australia has already lost more than 100 endemic species in the past three centuries, placing it at…
Recycling lithium-ion batteries to recover their critical metals has significantly lower environmental impacts than mining virgin metals, according to a new Stanford University lifecycle analysis published in Nature Communications. On a large scale, recycling could also help relieve the long-term supply insecurity – physically and geopolitically – of critical battery minerals. Lithium-ion battery recyclers source materials from two main streams: defective scrap material from battery manufacturers, and so-called “dead” batteries, mostly collected from workplaces. The recycling process extracts lithium, nickel,…
UCalgary scientist says it’s important to determine what happened and what can be learned Experts from the global Earth science community – including a scientist from the University of Calgary – have pieced together what happened during the massive Sikkim flood to try to help others prepare for similar disasters. On Oct. 3, 2023, a multi-hazard cascade in the Sikkim Himalaya, India, was triggered by a permanently frozen (permafrost) lateral moraine – debris from erosion along a glacier – collapsing…
For the first time, DNA evidence has confirmed killer whales in Australia hunted a white shark for its liver. Based on DNA analysis from the bite wounds on the carcass of a large white shark washed ashore near Portland in Victoria in 2023, the Flinders University-led study identified that killer whales were responsible for consuming the mid-section containing the nutritionally rich liver. Around the world, killer whales (Orcinus orca) have been observed preying on various shark species including white sharks…
As grasslands get abandoned, controlled burning is discussed as a labor-saving method of keeping forests at bay. A Kobe University research team found that this method results in higher biodiversity and a higher prevalence of endangered plant species in some grasslands compared to others, depending on what soils they grow on. Humans have been keeping grasslands since millennia by grazing, mowing and controlled burning, all of these are means to keep forests from overgrowing the grasslands. Grazing and mowing are,…
The UK’s peatlands face an uncertain future amid the escalating impacts of climate change Peatlands are critical ecosystems for carbon storage and biodiversity, containing more carbon than all the world’s forests despite covering just 3% of the global land surface. But new research reveals that vast areas of the UK’s peatlands, including the Flow Country UNESCO World Heritage Site, are likely to be unsuitable for peat accumulation by 2061–80 due to climate change. The researchers urge for a shift in…
Research team investigates influence of Zagros Mountains on bending Earth’s surface An international research team led by the University of Göttingen has investigated the influence of the forces exerted by the Zagros Mountains in the Kurdistan region of Iraq on how much the surface of the Earth has bent over the last 20 million years. Their research revealed that in the present day, deep below the Earth’s surface, the Neotethys oceanic plate – the ocean floor that used to be…
University of Otago – Ōtākou Whakaihu Waka scientists have successfully analysed more than 30 years of vital data on the thickness of landfast sea ice in Antarctica’s McMurdo Sound, which will prove useful to measure future impacts of climate change. The study, published in the Journal of Geophysical Research: Oceans, set out to discover what key influences determine the thickness of landfast sea-ice, known as fast ice, using data from 1986 to 2022. Fast ice is frozen ocean water that…
Melbourne researchers have discovered crucial new information about how microbes consume huge amounts of carbon monoxide (CO) and help reduce levels of this deadly gas. Over two billion tonnes of carbon monoxide are released into the atmosphere globally each year. Microbes consume about 250 million tonnes of this, reducing CO to safer levels. The Monash University-led Study, published in Nature Chemical Biology, reveals at an atomic level how microbes consume CO present in the atmosphere. They use a special enzyme, called…
Wajarri artist, Judith Anaru, painted a fast radio burst as part of a series commissioned by CSIRO to celebrate the research being undertaken with CSIRO’s ASKAP radio telescope on Wajarri Country. Image Credit: Judith Anaru, CRAFT, 2019 The first trial of an Australian-developed technology has detected mysterious objects by sifting through signals from space like sand on a beach. The first trial of an Australian-developed technology has detected mysterious objects by sifting through signals from space like sand on a…
Ammonia Air Pollution as Seen from Space. Image Credit: Sally PusedeA groundbreaking study led by researchers from the University of Virginia has used satellite measurements to show the long-term persistence of air pollution inequalities tied to industrialized swine facilities in Eastern North Carolina. Using satellite data spanning a 15-year period from 2008–2023, the study quantifies disparities in ammonia (NH₃) — an air pollutant emitted by swine operations — for Black, Hispanic and Indigenous communities. These inequalities, exacerbated by hot and…
Research with smallholder farmers in Kenya shows that tree-planting schemes must account for complex local issues and preferences. Tree planting is central to many countries’ climate mitigation and biodiversity conservation goals, and Kenya alone plans to plant 15 billion trees by 2032. Adding trees and shrubs to farmland (called agroforestry) can boost biodiversity, carbon storage, soil health, food production and income. But many tree-planting schemes overlook diversity and promote a narrow range of species. The new study – led by…
A major study of botanic gardens around the world has revealed their struggles with one fundamental aim: to safeguard the world’s most threatened plants from extinction. Researchers analysed a century’s worth of records – from 1921 to 2021 – from fifty botanic gardens and arboreta currently growing half a million plants, to see how the world’s living plant collections have changed over time. The results suggest that the world’s living collections have collectively reached peak capacity, and that restrictions on…
Artificial photosynthesis technology was developed with the addition of the biocatalyst L-alanine dehydrogenase, which combines ammonia with pyruvate to produce L-alanine, to the photoredox system composed of a dye and a catalyst. Image Credit: Osaka Metropolitan UniversityTechnology uses biomass-derived compounds and ammonia to produce an eco-friendly alternative plastic Nylon, the durable and elastic material, is like other plastics made from chemicals found in fossil fuels. Biodegradable plastics based on biomass-derived compounds are attracting attention as an alternative to conventional plastics,…