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insect decline 2021

The declines of … To us insectometers, it is clear that insect decline in our Costa Rican tropics is real, so let’s be kind to the survivors. It aims to provide comprehensive evidence on insect abundance and diversity across the country. Rare insect rediscovered in Scotland after more than 30 years The cow wheat shieldbug has a black body featuring two distinctive white spots and was last recorded in 1989. On average, there is a global decrease of 0.92% per year, which translates to approximately 24% over 30 years. This article was first published on Mongabay.com. An aspect they would like to determine is whether insect population decline equates to decline of other species, Last year Pedro Cardoso from the Finnish Museum of Natural History Luomus, University of Helsinki, Finland. A new study suggests that 40 percent of insect species are in decline, a sobering finding that has jarred researchers worldwide. Since the late 1970’s, they write, they’ve watched as insect declines came to the dry forests, cloud forests, and rainforests of Costa Rica’s Guanacaste Conservation Area, as the region was plagued by rising temperatures, increasingly erratic seasons and inconsistent rainfall. Monarch butterfly. We are looking for a highly motivated post-doctoral researcher with an understanding of entomology, a strong interest in insect decline and advanced skills in data analysis and visualisation. A worldwide compilation of long-term insect abundance studies shows that the number of land-dwelling insects is in decline. Such wild bees are critical for pollination of crops and all plants. Our aversion to insects … April 22, 2021 Source: University of Münster Summary: Insect decline poses challenges for the pollination of wild and cultivated plants. Similar losses within well-protected areas have been detected in Germany and Puerto Rico. The agricultural insect … In a perspective piece that leads off the special issue, Wagner and his co-authors address the likely causes of insect decline. Mosquitoes are one group we hate, but they are an important food source for bats, some birds, and some aquatic species.(mycteria-Shutterstock). However, the importance of each stressor and how they interact still puzzles scientists. The coffee or tea you savor, both are insect pollinated. LETHBRIDGE, AB – Some people may not be fans of insects, but they play an important role in our ecosystem. The ‘insect apocalypse’ is more complicated than it sounds Freshwater arthropods trended upward, while terrestrial ones declined, decades of data suggest While there may be 10 quintillion of them across the globe, scientists say insects could be extinct sooner rather than later — and humans are to blame. Global insect decline triggers warning from scientists. 118 (2): e2023989118. How many insects? This rapid decline in the population of insects is a sign that the sixth mass extinction of insects has already begun. SACPA: The decline of insect populations and how we can help them survive. “For every butterfly that Mongabay readers see during the daytime, there’s 19 species of moths flying around at night,” Wagner revealed. This education and awareness campaign runs from March 1 to April 30, 2021. Search for: Menu. In the Netherlands, upwards of 20% of species have been lost and in Belgium 29%. The rusty patched bumble bee (Bombus affinis) is endangered throughout its range in North America. The paper recommends growing native plants; using less herbicides and pesticides; limiting the use of exterior lighting; lessening runoff created when washing vehicles and buildings; working to counter negative perceptions of insects; educating others about insects; and getting involved in local politics, supporting science, and voting. That means, of course, for the fish we love to pursue. The articles that follow that opening essay zero in on the key causes for some of the biggest known losses: A study by Wagner and Peter Raven, president emeritus of the Missouri Botanical Garden, concludes that declines in insect biodiversity and biomass are linked to the intensification of agriculture over the past 50 years. Vast stretches of monoculture such as this canola field in Saskatchewan result in very limited opportunities for biodiversity. Fewer aquatic insects mean less food for birds, fish, and other animals, leading to much broader impacts on ecosystems and biodiversity. Biotic intactness has declined across at least 65% of the Earth’s terrestrial surface, the authors say, especially in grasslands and biodiversity hotspots. Other factors include light pollution, invasive species, climate change, and land use changes such as vast swaths of monoculture crops and other loss of habitat. That, he says of this comparison, is the danger we now face. Importantly, the Global Decline of Insects in the Anthropocene special feature identifies critical gaps in our knowledge. The Insect Effect: Insect Decline and the Future of Our Planet. CNRS News talked to Philippe Grandcolas, head of the ISYEB, and co-author of the scientific report that prompted the appeal. Their assessment, driven largely by European and North American datasets, suggested terrestrial insects were declining at a rate close to 1% per year, while aquatic insects appeared to be increasing in abundance, again by about 1% per year. As pollinators, food providers, pest controllers, decomposers, and soil engineers bugs are a key part of the very foundation for all life on the planet. Share on Facebook; Share on Twitter ; Copy Link; LETHBRIDGE, AB – Some people may not be fans of insects, but they play an important role in our ecosystem. Avoid mowing your garden frequently; let nature grow and feed insects. The abundance of insects is crucial for their ability to carry out their many jobs within an ecosystem. The solution to the steep decline in insect populations has to come from the efforts of every individual combined. However, their diversity and numbers are in an alarming decline. “Even just the lawn thing… taking a little tiny piece of your lawn and converting it to a natural habitat… the impact that a small piece of space can have on the grand scale is enormous.” Butterfly gardens and other such spaces also enrich our lives and offer educational opportunities for awakening natural wonder in children. Various sources have reported insect decline in total biomass, numbers, and species diversity. doi: 10.1073/pnas.2023989118. The authors offer conservation solutions and recommend policy changes to conserve butterflies and other insects — but so far political will has been lacking. Proceedings of the National Academy of Sciences, 118(2). In the UK, butterfly numbers have declined by around 50% over the past 50 years, with 8% of known resident species considered extinct. Global Decline of Insects a ‘Death by a Thousand Cuts’. According to a 2016 analysis, humanity has passed the “safe” planetary boundary threshold for “biotic intactness” a measure of functional and genetic diversity (biodiversity). For example, while many European … Insect populations are being reduced at varying rates across space and time, but on average, the decline in their abundance is thought to be around 1-2% per year, or 10-20% per decade. Published: Tuesday, January 12, 2021 . Recent reports of dramatic declines in insect populations have sparked concern about an 'insect apocalypse.' Wagner has just edited a newly released in-depth feature in the Proceedings of the National Academy of Science, Global Decline of Insects in the Anthropocene, in which 56 researchers present scientific studies, opinions and news on insect declines. Insect decline in the Anthropocene: Death by a thousand cuts. It estimated the rate of decline at 2.5% a year. We might be entering the 17th?…We might make ourselves extinct before we even reach these hallowed glories of the sixth.”, Clearly, the loss of insect abundance — depending on where and how fast it occurs — could have far more dire, unforeseen impacts than the loss of coffee or cashews. SACPA: The decline of insect populations and how we can help them survive. Much of the decline in insects could be traced to climate change, agricultural intensification, forestry, human population growth, urbanization and other factors (Wagner 2021). Recent reports have shown a dramatic loss in insect species and biomass. These involved some 56 scientists from several countries. Scientists speaking with Mongabay news last year noted that it is difficult to get an accurate picture of the situation given the complexity of so many different ecosystems and species around the world. Prof. Dr. Ralf B. Schäfer of Uni Koblenz-Landau will give a talk on the current research and debates surrounding insect decline, with focus on the key drivers, trends among aquatic versus terrestrial insects, the role of pollutants, and mitigation measures. Scientists suggest simple ways (2021, January 12) retrieved 20 April 2021 from https://phys.org/news/2021-01-unsure-reverse-insect-declines-scientists.html The possibility of using insects for palaeoclimate work deep in the geologic past was alluring, and Baranov says that he started looking at literature to see if it might be feasible. Referring to this fact, famed biologist E.O. Mar 24, 2021 12:58 PM. Our analyses show stronger declines … Apart from bug ... given that a few of the more highly publicized reports of insect decline suffered from unjustified assumptions, analytic issues, or over extrapolation. Entomologists are sounding the alarm about the cataclysmic decline in insects around the world, calling it the Insect Armageddon. The question for entomologists, Wagner said, is whether or not the decline of insects is actually occurring faster than for some other groups, especially because insects are often the direct target of destruction by human, due to pesticide and herbicide use. Small tortoiseshell butterflies. Various sources have reported insect decline in total biomass, numbers, and species diversity. “Insects are hugely under-recorded, but give us vital clues as to the health of our habitats. “I think if we all did it together… it would make a very big difference,” Akito Kawahara, lead author of the eight simple actions paper told Mongabay. Insect decline? Cardoso said, “”With species loss, we lose not only another piece of the complex puzzle that is our living world, but also biomass, essential for example to feed other animals in the living chain, unique genes and substances that might one day contribute to cure diseases, and ecosystem functions on which humanity depends”. Valerie Yurk, E&E News reporter. As to why they’re in decline, that involves several factors beyond the obvious increased use of both herbicides, and insecticides. Moving from the winged creatures of the day to night fliers, Wagner and colleagues give an overview of the global state of moth declines. “I mean, this thing is worth billions upon billions of dollars and we don’t know why it’s having such a hard time. They did note a real gap of information in tropical regions where biodiversity and species numbers are the greatest, and where there is often great habitat destruction such as in the Brazilian rain forest. Learn more below! The pure ecologist may wish to know how much insect populations have changed in areas where only one factor like climate change has operated. In an official advice issued, the French academy of sciences sounds the alarm about the decline of insects. Honey, dyes, even some vaccines require insects to come to fruition. Habitat loss is another factor in probable decline (S Colla). Be more aware of tiny creatures; always look on the small side of life. MIKE MCRAE. Share on Facebook; Share on Twitter; Copy Link; LETHBRIDGE, AB – Some people may not be fans of insects, but they play an important role in our ecosystem. SACPA: The decline of insect populations and how we can help them survive. Johnson … 1.11.2021 10:28 PM. It means that after even a century, you really don’t have anything left,” David Wagner, an entomologist with the University of Connecticut told Mongabay in an interview. Plant native plants; many insects need only these to survive. Our analyses show stronger declines … Action to curb extinction rates desperately needed: Studies. 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Reference: Insect decline: immediate action is needed (Le déclin des Insectes : il ... Earth Day 2021: Transformations; How scientists are ‘looking’ inside asteroids; Meet the Egyptian spiny mouse: this menstruating rodent may help us understand human pregnancy; Freshwater Salts; Search . Proceedings of the National Academy of Sciences. “(The problem) is at a landscape and ecosystem scale,” said Raine. Insect declines are emblematic of a larger problem: the earth is in the midst of what some call the “sixth mass extinction.” Birds, amphibians, freshwater mussels, large mammals, all have seen dwindling numbers. “It’s not all about counting stuff. Proceedings of the National Academy of Sciences, 118(2). Climate change is a stressor of insect populations around the world. “These insect papers, the focus on the small things, is a really delightful return to thinking ecologically,” Cornell told Mongabay. Insect populations are being reduced at varying rates across space and time, but on average, the decline in their abundance is thought to be around 1-2% per year, or 10-20% per decade. We may hate them, and some bring deadly diseases, but insects are a vital component of nature. The key finding is that patterns of moth biodiversity change are highly heterogeneous, both spatially and taxonomically, yielding a complex overall picture. “Think of a landowner with a million-dollar house on a river that’s a little bit wild. Entomologists are sounding the alarm about the cataclysmic decline in insects around the world, calling it the Insect Armageddon. A review published in 2019 indicated that 40% of insect species could become extinct in the next few decades, with insect biomass projected to decline … “The way that people (that’s us…) are using land is changing the capacity of ecosystems to continue doing their normal functions,” said Cornell, an SRC global change researcher who worked on a 2015 update to the planetary boundaries framework. Three principal metrics are used to capture and report on insect declines: “This pattern of lost biodiversity is undermining our own longer-term well-being.”. Apples, oranges, cabbages, cashews, cherries, carrots, broccoli, watermelon, garlic, cinnamon, basil, sunflower seeds, almonds, canola oil — all are insect pollinated. As warmer temperatures march northward, new suitable habitats open up for insects. Research Associate: insect decline. 10. Chris Halsch monitored five Donner Summit sites over the summer … Kawahara suggests several ways in which humans could help the cause. Global insect decline triggers warning from scientists. Which is why the precipitous decline of insects is raising alarms. Environmental groups are urging the European Union to take drastic action to protect insects against heavy pesticide use. Insect Population Decline. While scientists seek to raise concern about the wider effects of insect decline on nature, the University of Helsinki has recommendations for individuals to help mitigate the situation, All rights reserved @ Radio Canada International 2018, PNAS: Wagner et al: Jan 12/21: Insect decline in the Anthropocene: Death by a thousand cuts, Associated Press (CBC): Jan 12/21: Earth losing roughly 1%-2% of its insects annually, new studies suggest, Mongabay: J Hance: Nov 11/20: One year on: Insects still in peril as world struggles with global pandemic, Biological Conservation: Sanchez-Bayo/Wyckhuys Volume 232, April 2019, Pages 8-27 :  Worldwide decline of the entomofauna: A review of its drivers, Science Daily: U Helsinki: Feb 10/20: Scientists warn humanity about worldwide insect decline, Rheumatoid arthritis patients at higher risk of dangerous blood clots: study, China condemns Canada’s measures to protect human rights in Xinjiang. With German data on a species-rich hoverfly community over 25 y and a theoretical model, we show how these decline rates are interrelated. Wagner said scientists need to figure out if the rate of the insect loss is bigger than with other species. Which is why the precipitous decline of insects is raising alarms.. Insect populations are being reduced at varying rates across space and time, but on average, the decline in their abundance is thought to be around 1-2% per year, or 10-20% per decade.. “There’s so many good scientists that can’t figure out what the cause is,” Wagner said. Which is why the precipitous decline of insects is raising alarms. Support and volunteer in conservation organizations. PNAS: Wagner et al: Jan 12/21: Insect decline in the Anthropocene: Death by a thousand cuts Associated Press (CBC): Jan 12/21: Earth losing roughly 1%-2% of its insects … english@rcinet.caPosted: Wednesday, January 13, 2021 14:52. Published: Tuesday, January 12, 2021 . Leave old trees, stumps and dead leaves alone; they are home to countless species. We Need to Talk About The Rapid Decline in Insects Around The World . The relationship between biomass and diversity losses depends on whether common or rarer species are most affected. With an estimated 5.5 million species, insects are the most diverse group of animals on the planet. Vital to the world’s food web, nested in nutrient cycling, and embedded in industries — the closer we look, the more we see insects as vital to maintaining life’s frameworks. April 22, 2021 Source: University of Münster Summary: Insect decline poses challenges for the pollination of wild and cultivated plants. Chances are, the works of the world’s insects touch your lips every day. Moths are extremely diverse and cosmopolitan. Banner image: The oak jewel beetle (Eurythyrea quercus) is one of the most endangered beetle … Dan Johnson covered this topic at the March 11 virtual meeting of the Southern Alberta Council on Public Affairs (SACPA). This education and awareness campaign runs from March 1 to April 30, 2021. Commercial beekeepers claim that certain pesticides are responsible for massive hive loss, but loss of wild bees which comprise the greatest percentage of pollinators is also suspected. To us insectometers, it is clear that insect decline in our Costa Rican tropics is real, so let’s be kind to the survivors. In the final piece, researchers lay out, “eight simple actions that individuals can take to save insects from global declines.” One action urges people to convert lawns, or any green outside space, into more diverse natural habitats. The new feature doesn’t only sound the insect alarm, it also offers many suggestions about how to conserve and protect these tiny invertebrates. Wilson wrote in 1987, “[I]f invertebrates were to disappear, I doubt the human species could last more than a few months.”. Insect populations are being reduced at varying rates across space and time, but on average, the decline in their abundance is thought to be around 1-2% per year, or 10-20% per decade. Nas2-Wikimedia Commons. And they’re losing 10% to 20% of their land every decade, and it’s horrifying. 21st April 2021 Stu Benedict. FEEDBACK: Use this form to send a message to the author of this post. But rather we need to ask, how is this world changing?”. And I think the reason is, it’s death by a thousand cuts… most of these things are hit by four or five pretty important stressors, and they’re acting synergistically.”. This week the science journal  Proceedings of the National Academies of Science (PNAS) put together a series of 12 separate studies on the issue. Mongabay is a U.S.-based non-profit conservation and environmental science news platform. Build an insect hotel with small horizontal holes that can become their nests. Watch | The world’s insect population is declining. The new four-year Drivers and Repercussions of UK Insect Decline (DRUID) project started in January 2021. Dung beetles are known to play an important and beneficial role in ecosystems, but have been severely threatened by habitat loss and man-made fires (Richard Heathcote-Getty Images). That means, of course, for the fish we love to pursue. Dan Johnson covered this topic at the March 11 virtual meeting of the Southern Alberta Council on Public Affairs (SACPA). The new four-year Drivers and Repercussions of UK Insect Decline (DRUID) project started in January 2021. And of those with a name, we know little more than a brief morphological description, maybe a part of the genetic code and a single site where it was seen some time ago”, Common Eastern Bumble bee. EU urged to act against pesticides to fight insect decline. Apart from bug-loving entomologists and innovative roboticists, most humans regard insects with a mixture of disdain and disgust. The planetary boundaries framework, postulated by a group of international scientists in 2009, attempts to set the environmental limits within which life can safely function, and asks the question: how much human-caused disturbance can the planet take without shifting into a new and/or riskier state? The scientists note that we are very likely losing many species we don’t even know about yet. Wed 3 Mar 2021 01.00 EST 332 Moths in Britain have declined in abundance by a third over the past 50 years, according to a new study. Our goal is for 1,000 Floridians to learn more about the importance of insects and take our pledge to help curb their decline. The preferred start date is from 1 June 2021, but there is flexibility. While researchers debate the details, most are in agreement … With an estimated 5.5 million species, insects are the most diverse group of animals on the planet. 20 April, 2021 … But pollinator decline isn’t the only threat posed by neonics. 17 JANUARY 2021 . Wagner, D. L., Grames, E. M., Forister, M. L., Berenbaum, M. R., & Stopak, D. (2021). Which is why the precipitous decline of insects is raising alarms. Insect populations are being reduced at varying rates across space and time, but on average, the decline in their abundance is thought to be around 1-2% per year, or 10-20% per decade. To protect insects against heavy pesticide use, which scientists say has both its winners... Pesticides ; go organic, at 6 PM MET provide comprehensive evidence on insect declines important! Or cultivating native plants in one ’ s insect population is lost each.... Your own backyard the small side of life to conserve butterflies and other animals, to... 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