{"id":26330,"date":"2020-02-03T00:01:54","date_gmt":"2020-02-03T04:01:54","guid":{"rendered":"http:\/\/beyondpesticides.org\/dailynewsblog\/?p=26330"},"modified":"2020-02-02T20:32:28","modified_gmt":"2020-02-03T00:32:28","slug":"save-mayflies-and-the-ecosystems-that-depend-on-them","status":"publish","type":"post","link":"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/02\/save-mayflies-and-the-ecosystems-that-depend-on-them\/","title":{"rendered":"Save Mayflies and the Ecosystems that Depend on Them"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-26339\" src=\"http:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/02\/mayflies.png\" alt=\"\" width=\"600\" height=\"200\" srcset=\"https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/02\/mayflies.png 600w, https:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/02\/mayflies-300x100.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/>(<em>Beyond Pesticides<\/em>, February 3, 2020) In more bad news from the insect world, recent research published in the\u00a0<a href=\"https:\/\/www.pnas.org\/content\/early\/2020\/01\/15\/1913598117?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=\"><em>Proceedings of the National Academy of Sciences<\/em><\/a>\u00a0reveals a precipitous decline in numbers of mayflies where they have been historically abundant. The research finds that in the Northern Mississippi River Basin, seasonal emergence of burrowing mayfly (genus\u00a0<em>Hexagenia<\/em>) adults declined by 52% from 2012 to 2019; in the Western Lake Erie Basin, from 2015 to 2019, the reduction was a shocking 84%.\u00a0<a href=\"https:\/\/www.beyondpesticides.org\/assets\/media\/documents\/bp-37.1-PoisonedWaterways-cited3.pdf?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=\">Neonicotinoid insecticides are a significant factor<\/a>\u00a0in this decline because mayflies are extremely vulnerable to their impacts, even at very low exposure levels.<img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-26311\" src=\"http:\/\/beyondpesticides.org\/dailynewsblog\/wp-content\/uploads\/2020\/01\/bi01005.gif\" alt=\"\" width=\"300\" height=\"200\" \/><\/p>\n<p><a href=\"https:\/\/secure.everyaction.com\/n8bWVjYtiE-65zsUXmaZeQ2?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=##anchor\"><strong>Ask Congress to tell EPA, USDA, and the Department of Interior to develop a joint effort to ensure that its decisions and compliance with its authorizing statutes address the crisis of the threat to mayflies.<\/strong><\/a><\/p>\n<p><em>Ephemeroptera<\/em> to entomologists\u2014\u201cmayflies\u201d to the rest of us\u2014is an insect order comprising keystone species, on which other species in an ecosystem are very dependent, and without which, the ecosystem would undergo drastic change. <a href=\"https:\/\/www.nationalgeographic.com\/animals\/2020\/01\/mayfly-insect-populations-in-decline\/#close\">The plummeting mayfly \u201ccount\u201d is especially alarming<\/a> because mayflies are a critical, primary food source in aquatic and terrestrial ecosystems, and provide an important ecological service. As the research study notes, \u201cSeasonal animal movement among disparate habitats is a fundamental mechanism by which energy, nutrients, and biomass are transported across ecotones. A dramatic example of such exchange is the annual emergence of mayfly swarms from freshwater benthic [lake or river bottom] habitats. . . . Annual . . . emergences represent the exchange of hundreds of tons of elemental nutrients, thousands of tons of biomass, billions of organisms, and trillions of calories worth of energy to the surrounding terrestrial habitat. . . . A single emergence event can produce 87.9 billion mayflies, releasing 3,078.6 tons of biomass into the airspace over several hours.\u201d According to <u>Purdue University ecologist<\/u> <u>Jason Hoverman, PhD,<\/u> \u201cMayflies serve critical functions in both aquatic and terrestrial ecosystems. Because of their important role as prey, reductions in their abundance can have cascading effects on consumers throughout the food web.\u201d Without this critical keystone species, an important food source and nutrient recycler would be lost.<\/p>\n<p>Thus, although neonics are directly toxic to many insects, the role of pesticides in destabilization of ecosystems is not necessarily direct. Beyond direct toxicity, pesticides can significantly reduce, change the behavior of, or destroy populations of plants and animals. These effects can ripple up and down food chains, causing what is known as a trophic cascade. The loss or reduction of populations at any trophic level\u2014including amphibians, insects, or plants\u2014can result in changes that are difficult to perceive, but nonetheless equally damaging to the stability and long-term health of an ecosystem.<\/p>\n<p><a href=\"https:\/\/www.nationalgeographic.com\/animals\/2020\/01\/mayfly-insect-populations-in-decline\/?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=#close\">Three phenomena account<\/a>\u00a0for most of the decrease in mayfly populations: (1) dramatically increased use of\u00a0<a href=\"https:\/\/beyondpesticides.org\/assets\/media\/documents\/pollinators\/Neonicotinoid%20insecticides%20report-1.pdf?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=\">neonicotinoid pesticides<\/a>, to which mayflies are highly sensitive; (2)\u00a0<a href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2018\/07\/massive-algae-blooms-choking-waterways-caused-synthetic-fertilizers-chemical-intensive-land-management\/?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=\">algal blooms<\/a>, especially in Lake Erie, caused primarily by runoff of agricultural fertilizers and other nutrient-dense pollutants; and (3) the warming impacts of the climate crisis, which include higher water temperatures that can wreak havoc with the development of these tiny creatures.<\/p>\n<p>Because the threats to mayflies cut across regulatory boundaries, it is important for federal agencies to cooperate in protecting them. Action must be taken to protect vulnerable waterways from neonicotinoid contamination. The frequency of detections in U.S. waterways cannot be overlooked. Such routine detections, even at low levels, indicate that our waterways are being overloaded with mobile and persistent chemicals at highly elevated concentrations.\u00a0 Thus far, little action has been taken to restrict the use of these chemicals in response to the independent scientific literature and EPA risk data that identify direct threats to aquatic invertebrates, as well as indirect threats to higher trophic organisms. Federal benchmarks based on testing on insensitive species are not protective of more sensitive species. Similarly, action is needed to prevent runoff from agricultural fields and feedlots and adopt climate-friendly policies.<\/p>\n<p><a href=\"https:\/\/secure.everyaction.com\/n8bWVjYtiE-65zsUXmaZeQ2?emci=ae9ef4a2-5544-ea11-a1cc-00155d03b1e8&amp;emdi=ea000000-0000-0000-0000-000000000001&amp;ceid=\"><strong>Ask Congress to tell EPA, USDA, and the Department of Interior to develop a joint effort to ensure that its decisions and compliance with its authorizing statutes address the crisis of the threat to mayflies.<\/strong><\/a><\/p>\n<p><strong>Letter to Congress<\/strong><\/p>\n<p>I am writing to call your attention to a serious ecological problem that requires a coordinated effort across government agencies.<\/p>\n<p>Recent research published in the Proceedings of the National Academy of Sciences reveals a precipitous decline in numbers of mayflies where they have been historically abundant. In the Northern Mississippi River Basin, seasonal emergence of burrowing mayfly adults declined by 52% from 2012 to 2019; in the Western Lake Erie Basin, from 2015 to 2019, the reduction was a shocking 84%.<\/p>\n<p>The plummeting mayfly \u201ccount\u201d is alarming because mayflies are a critical, primary food source in aquatic and terrestrial ecosystems, and provide an important ecological service. As the research study notes, \u201cSeasonal animal movement among disparate habitats is a fundamental mechanism by which energy, nutrients, and biomass are transported across ecotones&#8230;A single emergence event can produce 87.9 billion mayflies, releasing 3,078.6 tons of biomass into the airspace over several hours.\u201d<\/p>\n<p>According to Purdue University ecologist Jason Hoverman, PhD, \u201cMayflies serve critical functions in both aquatic and terrestrial ecosystems. Because of their important role as prey, reductions in their abundance can have cascading effects on consumers throughout the food web.\u201d Without these critical keystone species, important food sources and nutrient recyclers would be lost.<\/p>\n<p>Three phenomena account for most of the decrease in mayfly populations: (1) dramatically increased use of neonicotinoid pesticides, to which mayflies are highly sensitive; (2) algal blooms, especially in Lake Erie, caused primarily by runoff of agricultural fertilizers and other nutrient-dense pollutants; and (3) the warming impacts of the climate crisis, which include higher water temperatures that can wreak havoc with the development of these tiny creatures.<\/p>\n<p>Because threats cut across regulatory boundaries, it is important for federal agencies to cooperate in protecting mayflies. U.S. waterways are being overloaded with mobile and persistent chemicals at highly elevated concentrations.\u00a0 Little action has been taken to restrict the use of toxic chemicals despite independent scientific literature and EPA risk data that identify direct threats to aquatic invertebrates, as well as indirect threats to higher trophic organisms. Similarly, action is needed to prevent runoff from agricultural fields and feedlots and adopt climate-friendly policies.<\/p>\n<p>Thank you,<\/p>\n<p>\u00a0<\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>(Beyond Pesticides, February 3, 2020) In more bad news from the insect world, recent research published in the\u00a0Proceedings of the National Academy of Sciences\u00a0reveals a precipitous decline in numbers of mayflies where they have been historically abundant. The research finds that in the Northern Mississippi River Basin, seasonal emergence of burrowing mayfly (genus\u00a0Hexagenia) adults declined by 52% from 2012 to 2019; in the Western Lake Erie Basin, from 2015 to 2019, the reduction was a shocking 84%.\u00a0Neonicotinoid insecticides are a significant factor\u00a0in this decline because mayflies are extremely vulnerable to their impacts, even at very low exposure levels. Ask Congress to tell EPA, USDA, and the Department of Interior to develop a joint effort to ensure that its decisions and compliance with its authorizing statutes address the crisis of the threat to mayflies. Ephemeroptera to entomologists\u2014\u201cmayflies\u201d to the rest of us\u2014is an insect order comprising keystone species, on which other species in an ecosystem are very dependent, and without which, the ecosystem would undergo drastic change. The plummeting mayfly \u201ccount\u201d is especially alarming because mayflies are a critical, primary food source in aquatic and terrestrial ecosystems, and provide an important ecological service. As the research study notes, \u201cSeasonal animal movement [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[352,354,431,276,1],"tags":[],"class_list":["post-26330","post","type-post","status-publish","format-standard","hentry","category-biodiversity","category-environmental-protection-agency-epa","category-mayflies","category-take-action","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Save Mayflies and the Ecosystems that Depend on Them - Beyond Pesticides Daily News Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beyondpesticides.org\/dailynewsblog\/2020\/02\/save-mayflies-and-the-ecosystems-that-depend-on-them\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Save Mayflies and the Ecosystems that Depend on Them - Beyond Pesticides Daily News Blog\" \/>\n<meta property=\"og:description\" content=\"(Beyond Pesticides, February 3, 2020) In more bad news from the insect world, recent research published in the\u00a0Proceedings of the National Academy of Sciences\u00a0reveals a precipitous decline in numbers of mayflies where they have been historically abundant. The research finds that in the Northern Mississippi River Basin, seasonal emergence of burrowing mayfly (genus\u00a0Hexagenia) adults declined by 52% from 2012 to 2019; in the Western Lake Erie Basin, from 2015 to 2019, the reduction was a shocking 84%.\u00a0Neonicotinoid insecticides are a significant factor\u00a0in this decline because mayflies are extremely vulnerable to their impacts, even at very low exposure levels. Ask Congress to tell EPA, USDA, and the Department of Interior to develop a joint effort to ensure that its decisions and compliance with its authorizing statutes address the crisis of the threat to mayflies. Ephemeroptera to entomologists\u2014\u201cmayflies\u201d to the rest of us\u2014is an insect order comprising keystone species, on which other species in an ecosystem are very dependent, and without which, the ecosystem would undergo drastic change. The plummeting mayfly \u201ccount\u201d is especially alarming because mayflies are a critical, primary food source in aquatic and terrestrial ecosystems, and provide an important ecological service. 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The founders, who established Beyond Pesticides (originally as National Coalition Against the Misuse of Pesticides) as a nonprofit membership organization in 1981, felt that without the existence of such an organized, national network, local, state and national pesticide policy would become, under chemical industry pressure, increasingly unresponsive to public health and environmental concerns. Beyond Pesticides believes that people must have a voice in decisions that affect them directly. We believe decisions should not be made for us by chemical companies or by decision-makers who either do not have all of the facts or refuse to consider them. Learn more about our work, read A Year in Review\u20142021, our accomplishments are your victories! Beyond Pesticides seeks to protect healthy air, water, land, and food for ourselves and future generations. By forging ties with governments, nonprofits, and people who rely on these natural resources, we reduce the need for unnecessary pesticide use and protect public health and the environment. Beyond Pesticides provides hands-on services to the public and supports local action by: identifying and interpreting hazards; and, designing safe pest management programs. With the information provided by Beyond Pesticides, people may not only be able to make informed choices and adopt practices that protect themselves and their families from unnecessary exposure to pesticides, but they will be able to effect changes on community-wide pest management decisions and policies that govern pesticide use, such as pesticide uses in parks, schools, for community insect control and along roadsides. 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The research finds that in the Northern Mississippi River Basin, seasonal emergence of burrowing mayfly (genus\u00a0Hexagenia) adults declined by 52% from 2012 to 2019; in the Western Lake Erie Basin, from 2015 to 2019, the reduction was a shocking 84%.\u00a0Neonicotinoid insecticides are a significant factor\u00a0in this decline because mayflies are extremely vulnerable to their impacts, even at very low exposure levels. Ask Congress to tell EPA, USDA, and the Department of Interior to develop a joint effort to ensure that its decisions and compliance with its authorizing statutes address the crisis of the threat to mayflies. Ephemeroptera to entomologists\u2014\u201cmayflies\u201d to the rest of us\u2014is an insect order comprising keystone species, on which other species in an ecosystem are very dependent, and without which, the ecosystem would undergo drastic change. The plummeting mayfly \u201ccount\u201d is especially alarming because mayflies are a critical, primary food source in aquatic and terrestrial ecosystems, and provide an important ecological service. 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