Archive for the 'Biodiversity' Category
09
Oct
(Beyond Pesticides, October 9, 2024) An agrichemical industry-funded study published in International Journal of Agricultural Sustainability dissects the development of national organic standards and opportunities that can be applied in expanding the use of âregenerativeâ agriculture. Not surprisingly, the study authors offer support for integrated pest management (IPM) and reassurance of a rigorous pesticide registration review process before the chemicals are marketed. The study included a survey of five farmers, who farm a total of 100,000 acres, but do not have extensive experience farming organically. For those practicing regenerative organic practices and organic advocates, the bottom line is that the study concludes that a list of criteria that would be needed for regenerative agriculture criteria (e.g., list of allowed substances) already exists within the standards and requirements of the 1990 Organic Foods Production Act (OFPA) and the National Organic Program. Environmental and public health advocates are concerned about this piece representing an industry position being cloaked in an academic journal serving as an obstacle to the widespread adoption and improvement of organic principles and practices. The study was written by four authors with varying levels of connections to CropLife America (the major agrichemical industry trade group), including academic researchers with […]
Posted in Alternatives/Organics, Biodiversity, Chemical Mixtures, Chemicals, Corporations, Federal Agencies, Integrated and Organic Pest Management, National Organic Standards Board/National Organic Program, Pests, Pollinators, soil health, Soil microbiome, Uncategorized | No Comments »
17
Sep
(Beyond Pesticides, September 17, 2024) Today, International Microorganism Day, is a prime moment to focus on the complexity of billions of living beings that establish the foundation of land management and food production. Organic advocates, community members, and farmers identify the protection and enhancement of biological diversity in the soil as a key goal, especially in light of mounting concerns over rising microbial resistance to chemical-intensive practices. A recent article in British Journal of Environmental Sciences points to several microbial populations adversely affected by pesticide-contaminated soil on various farmland plots in Nigeria. There are significant variations in bacteria presence between pesticide-treated and control plots, with a lab analysis finding â[s]eventy-five percent (75%) of pesticide residue was detected in the soil samples,â which includes paraquat dichloride, endosulfan, diazinon, and N-(phosponomethyl)glycine [glyphosate]. This report builds on years of research from higher education institutions worldwide, including participatory research centering applied experiments on farmland, demonstrating the consequences of relying on pesticide-intensive agriculture and land management. The main goal of this report is to âdetermine the influence of pesticide contamination on the microbial population, physiochemical parameters and pesticide residue of soil of selected farmlands in Otuoke, Bayelsa State, Nigeria.â Researchers document the presence of eleven […]
Posted in Antibacterial, Antibiotic Resistance, Antimicrobial, Biodiversity, Diazinon, Endosulfan, Glyphosate, Microbiata, Paraquat, Pesticide Residues, soil health, Uncategorized | No Comments »
16
Sep
(Beyond Pesticides, September 16, 2024) After the release of a hard-hitting study last week published in Science that pinpoints the cycle of increasing pesticide use with ecosystem and bat decline, resulting in higher infant mortality, Beyond Pesticides is calling for state and local action to transition public land to organic practices. Without a healthy ecosystem, the study documents increased pesticide use with dramatic adverse health effects. To take corrective action, Beyond Pesticidesâ action asks governors and mayors to do the following: Eliminate the use of pesticides that imperil bats by adopting biodiversity conservation goals includingâ (1) ecological mosquito management with measures that recognize the benefit of preventive strategies, establish source reduction programs to manage breeding sites on public lands, educate on the management of private lands, employ programs for larval management with biological controls, and eliminate the use of toxic pesticides; (2) prohibition of systemic insecticides and treated seeds, including neonicotinoids; and (3) land management on public landsâincluding hospitals, higher education institutions, schools, and parksâusing regenerative organic principles and organic certified practices and products, to transition to a viable organic system that prioritizes long-term health of the public, ecology, and economy. The new research connects declines in bat populations with increased […]
Posted in Agriculture, Alternatives/Organics, Bats, Beneficials, Biodiversity, Take Action, Uncategorized | 3 Comments »
11
Sep
(Beyond Pesticides, September 11, 2024) A literature review in Environments, written by researchers from South Korea and Ghana, highlights the threat to nontarget species and the biodiversity of insects that occur as a result of agricultural pesticide use. âInsects have experienced a greater species abundance decline than birds, plants, and other organisms, which could pose a significant challenge to global ecosystem management. Although other factors such as urbanisation, deforestation, monoculture, and industrialisation may have contributed to the decline in insect species, the extensive application of agro-chemicals appears to cause the most serious threat,â the authors state. The so-called âinsect apocalypseâ has been reported with one-quarter of the global insect population lost since 1990. The authors, seeking to summarize the decline in insect species richness and abundance, link reliance on petrochemical pesticides and synthetic fertilizers to cascading negative impacts. Insects provide many important services, such as maintaining healthy soil, recycling nutrients, pollinating flowers and crops, and controlling pests. These nontarget and beneficial species are at risk through pesticide exposure, both directly and indirectly, which then affects these essential functions.  âExtensive and indiscriminate pesticide application on a commercial scale affects insect species abundance and non-target organisms by interfering with their growth, […]
Posted in Agriculture, Alternatives/Organics, Beneficials, Biodiversity, Ecosystem Services, International, Pollinators, Wildlife/Endangered Sp. | No Comments »
10
Sep
(Beyond Pesticides, September 10, 2024) Results from a natural experiment, published in Science, shows ecosystem disruption of bat populations with cascading impacts on human health. Eyal Frank, PhD, an assistant professor of the Harris School of Public Policy at the University of Chicago, links increased insecticide use in croplands in the absence of bat species to a rise in infant mortality. As Dr. Frank says in an article in Science Daily, â[B]ats do add value to society in their role as natural pesticides, and this study shows that their decline can be harmful to humans.” Many farmers rely on bats as alternatives to pesticides to protect their crops from insects, but White-Nose Syndrome (WNS) has greatly impacted bat populations since 2006. With the collapse of many bat populations in counties in North America, these farmers turn to toxic chemicals to replace the ecosystem services bats usually provide. These chemicals, however, lead to ripples through the ecosystem and endanger human health. WNS is an invasive fungus (Pseudogymnoascus destructans) found in caves that affects bats during hibernation. As highlighted in an article in the New York Times, three species of bats in North America have been decimated by this syndrome, and bats […]
Posted in Bats, Beneficials, Biodiversity, Death, Disease/Health Effects, Ecosystem Services, Pollinators, Wildlife/Endangered Sp. | No Comments »
09
Sep
(Beyond Pesticides, September 9, 2024)  Comments are due by 11:59 PM EDT on September 30, 2024. With the opening of the public comment period on organic standards that determine the integrity, strength, and growth of the organic agricultural sector, a study was released last week that shows degradation of the ecosystem linked to increased infant mortality associated with higher pesticide use by chemical-intensive farmers compensating for losses in bat populations. It is well known that bats, among other wildlife including birds and bees, provide important ecosystem services to farmers by helping to manage pest populations and increase plant resilience and productivity. While degradation of ecosystems is attributable to many factors, pesticide use accounts for an important element in harm to bats and biodiversity. The study, âThe economic impacts of ecosystem disruptions: Costs from substituting biological pest control,â published in Science, concludes with a finding that âinsect-eating bat population levels induce farmers to substitute with insecticides, consequently resulting in a negative health shock to infant mortality.â Daily News will cover this study in depth in an upcoming edition. According to research published in the Journal of the Association of Environmental and Resource Economists (2022), bat population declines cost American farmers as much as […]
Posted in Agriculture, Alternatives/Organics, Bats, Beneficials, Biodiversity, Children, Poisoning, Take Action, Uncategorized | No Comments »
04
Sep
(Beyond Pesticides, September 4, 2024) A study in the Journal of Environmental Science and Public Health adds to the body of science that highlights the ecological decline threatening all species as a result of hazardous chemicals in the environment. âWhen environmental changes undermine a species’ or population’s ability to survive, it is said to be in an ecological crisis,â the authors state. They continue, âPesticides, particularly persistent organic pollutants (POPs), are among the top ten chemicals and hazardous compounds that the WHO [World Health Organization] has recognized as being a concern for global health. The overuse and improper handling of agrochemicals is the primary driver of the ecological disaster.â  The researchers, from the Post Graduate Institute of Medical Education and Research in India, conducted a literature review to look broadly and comprehensively at the range of factors that contribute to adverse health effects (from breast cancer to genotoxic effects, chronic kidney disease, neurotoxicity, and more). They searched PubMed and Google Scholar for studies between 2004-2024 for relevant information on soil health, sustainable agriculture, food security, soil security, and the associations with human health. Their scientific findings lead the authors to conclude that the building of healthy soils will eliminate the need […]
Posted in Aldrin, Alternatives/Organics, Biodiversity, Cancer, Chlorpyrifos, Climate Change, Dimethoate, Endosulfan, Heptachlor, International, Reproductive Health, soil health, Soil microbiome | No Comments »
19
Aug
(Beyond Pesticides, August 19, 2024) As a local news outlet in Virginia covers a local farm receiving organic certification, Beyond Pesticides launches an action this week to âtake back organicâ âin response to prominent agricultural forces and industry interests attempting to weaken organic standards and blur the line between certified organic and “regenerative” practices that are not organic-certified. In an article, VMRCâs Farm at Willow Run is certified organic [VMRC is the Virginia Mennonite Retirement Community], Rocktown Now quotes the farm manager in Harrisonburg, VA, Nate Clark, saying, âThis milestone demonstrates our dedication to providing high-quality, healthy food to our residents and community while also prioritizing environmental sustainability.â The article reports that as a certified organic farm with detailed records of the farmâs field and harvest activities and materials, subject to annual inspections, âVMRC is committed to regenerative farming practices that promote soil health, energy conservation and fair working conditions.â âRegenerativeâ agriculture or land management that is not certified organic raises a series of questions about its lack of a standard definition that is enforceable under a compliance system. Beyond Pesticidesâ piece on the subject, âRegenerativeâ Agriculture Still Misses the Mark in Defining a Path to a Livable Future,â explores […]
Posted in Alternatives/Organics, Biodiversity, Climate, Climate Change, National Organic Standards Board/National Organic Program, Organic Foods Production Act OFPA, Regenerative, Take Action, Uncategorized, US Department of Agriculture (USDA), Virginia | No Comments »
16
Aug
(Beyond Pesticides, August 16, 2024) The International Panel of Experts on Sustainable Food Systems (IPES-Food) released a report, Food from Somewhere: Building food security and resilience through territorial markets, in July identifying the importance of moving beyond toxic chemical dependent, industrialized agriculture and toward âsourcing local and organic foodâ through alternative models, such as farmer and consumer-owned cooperatives, alternative certification schemes, and fostering relationships between organic producers and consumers through territorial markets. â[T]erritorial markets are closely associated with agroecology, and in many cases help to provide market outlets for farmers using natural fertilizers and pesticides that work with nature, rather than the fossil-fuel based synthetic inputs associated with corporate value chains,â the authors state and go on to advocate for transformative action based on various case studies rooted in organic principles and practices. Territorial markets are a nascent concept rooted in agroecology (“an integrated approach that simultaneously applies ecological and social concepts and principles to the design and management of food and agricultural systems”) and political ecology, which depending on the perspective may have differing definitions. However, there are several commonly held principles of territorial markets that include ideas of âcloser to home,â âlargely or fully outside of corporate chains,â […]
Posted in Alternatives/Organics, Biodiversity, International, Madagascar, Seeds, soil health, Uncategorized, United Nations | No Comments »
12
Aug
(Beyond Pesticides, August 12, 2024)Â Â When the U.S. Environmental Protection Agency (EPA) issued an emergency ban of the weed killer Dacthal (DCPA) last week, it said that there are no âpracticable mitigation measuresâ to protect against identified hazardsâa clear and honest assessment of the limits of pesticide product label changes and use restrictions. Now, the question is whether the same thinking can be applied across the EPA’s pesticide program, addressing the urgent need to protect biodiversity. In the Dacthal proclamation, EPA said it consulted with the U.S. Department of Agriculture (USDA) on âalternatives to this pesticide,â and presumably determined that there were âalternative chemicalsâ that could be used in chemical-intensive agricultureâwhile not considering âalternatives to chemicals.â This is the framework that is understood to be EPAâs process that keeps pest management on a pesticide treadmill except in extremely rare cases (this being the second in nearly 40 years). It is also the framework that has led to catastrophic events or existential crises on biodiversity collapse, health threats, and the climate emergency. On biodiversity, the mix of diverse and intricate relationships of organisms in nature that are essential to the sustaining of life, EPAâs pesticide program, the Office of Pesticide Programs, has […]
Posted in Agriculture, Alternatives/Organics, Biodiversity, dacthal, Endangered Species Act (ESA), Environmental Protection Agency (EPA), Take Action, Uncategorized, US Department of Agriculture (USDA), Wildlife/Endangered Sp. | No Comments »
09
Aug
(Beyond Pesticides, August 9, 2024)ââ A study in the journal Biology and Fertility of Soils has confirmed once again that organic agriculture contributes significantly to soil health, improving ecological functions that are harmed by conventional, chemical-intensive farming practices. Organic soil amendments (fertilizers) that feed soil organisms increase beneficial protistan predators and support sustainable predator-prey relationships within the soil microbiome. [âProtistâ is a catch-all term that describes ancient lineages of eukaryotesâorganisms with a nucleusâthat are neither a true plant, animal, or fungus.] The study shows that organic farming creates a healthy ecosystem able to support a balance of life forms in the soil. Moreover, the study finds that the use of chemical fertilizers for agricultural management disrupt the stable biological relationship between protistan predators and their bacterial prey in soils, adding to the argument for transitioning away from conventional systems that lean on toxic inputs. Â Healthy soil contains millions of living species that form the microbiome. Most of the biodiversity in soil consists of bacteria and fungi, and their number and type are regulated partially by predatory protists and nematodes that feed on bacteria. Akin to the impact of predators keeping a herd of prey healthy by hunting the sick, […]
Posted in Agriculture, Alternatives/Organics, Beneficials, Climate Change, Fertilizer, Herbicides, Lawns/Landscapes, Microbiome, Nitrates, Regenerative, soil health, Soil microbiome, Synthetic Fertilizer, Uncategorized | No Comments »
01
Aug
(Beyond Pesticides, August 1, 2024) The city council of Newbury, Massachusetts unanimously voted to ban second-generation anticoagulant rodenticides (SGARs) on private property earlier this year, according to a press release by Mass Audubon. Several other local governments across the state have passed proposed rodenticide or pesticide ordinances since the fall of 2023 â including the cities of Arlington, Orleans, and Newton. Moreover, proposed legislation sitting in the state legislature calls for designating glyphosate as a restricted-use pesticide on public lands (S.516, S.517, and H.813) and establishing ecologically based mosquito management plans at the state and local levels. (S.445 and H.845) The combination of these pending actions demonstrates the publicâs concerns over adverse impacts of toxic pesticides and demands for a transformation toward an ecologically sustainable land management system rooted in organic principles in the absence of federal action. Massachusetts is one of about 45 states that, in some form, preempts local governments from establishing pesticide ordinances. If a municipalityâs elected officials vote to pass a pesticide ordinance, some states (including Massachusetts) require passage through the state legislature. This is known as the Home Rule petition process. Back in the 19th century, U.S. Supreme Court Justice John F. Dillon established what […]
Posted in Biodiversity, Massachusetts, Pesticide Drift, Preemption, Rodenticide, Uncategorized | No Comments »
22
Jul
(Beyond Pesticides, July 22, 2024) Mosquito management practices, typically reliant on toxic pesticides, can be antithetical to biodiversity protection. In this respect, consideration being given to biodiversity conservation goals in the Commonwealth of Massachusetts raise important issues critical of the chemical-intensive practices that are conventionally used to control mosquitoes. The state is taking public comments until August 30, 2024 on the development of biodiversity conservation goals. In an executive order (no.618), Biodiversity Conservation, issued September 21, 2023, Governor Maura Healey (D) directed the stateâs Department of Fish and Game to âconduct a comprehensive review of the existing efforts of all executive department offices and agencies to support biodiversity conservation in Massachusetts [and] recommend biodiversity conservation goals for 2030, 2040, and 2050 and strategies to meet those goals.â [Massachusetts residents, please look out for an action from Beyond Pesticides.] In response to development of biodiversity goals in Massachusetts, last week Beyond Pesticides testified before the Massachusetts Fish and Game Department and urged the state to adopt a broad government-wide strategy that establishes biodiversity protection and enhancement as a basic tenet for all programmatic decisions going forward. In this context, Beyond Pesticides identified the following issues, among others, which stand out as […]
Posted in Biodiversity, Massachusetts, Mosquitoes, Uncategorized | 1 Comment »
11
Jul
(Beyond Pesticides, July 11, 2024) Can the health of pollinator hives serve as a nature-based indicator for pesticide residue drift? Researchers in a study published in Science of the Total Environment in June find this to be the case. Through the BeeNet Project, led by the Italian Ministry of Agriculture, Food Sovereignty, and Forestry (MAFSF), researchers detected the presence of 63 different pesticide residues in hives across northern Italy. Of these residues, 15 are not approved for use under European Union (EU) law. Environmental advocates observe the mounting scientific literature on pollinator decline, in part due to the inadequate regulation of toxic petrochemical-based pesticides, as a call to action to push forward land management, agricultural, and climate policy that aligns with organic principles centering on soil health, biodiversity, public health, worker protections, and economic security. Methodology The study is cowritten by a cohort of ten researchers working in the Research Center for Agriculture and Environment in Bologna, Italyâa research institution within the Council for Agricultural Research and Agricultural Economics Analysis (CREA) at MAFSF. Supported by the BeeNet Project (funded by Italian National Fund), BeeNet is a national monitoring project that tracks the health of honey bee and wild bee populations […]
Posted in Biodiversity, Chemicals, Pesticide Mixtures, Pesticide Residues, Pollinators, Uncategorized | No Comments »
03
Jul
(Beyond Pesticides, July 3, 2024) In June, the Vermont legislature officially passed H.706 into law â a bill that narrows and reduces the use of neonicotinoid insecticides and neonicotinoid-treated seeds. The legislature came together to override a veto of the bill issued by Governor Phil Scott (R). Gov. Scott said the billâs language had âthe potential to produce severe unintended environmental and economic consequencesââparticularly for Vermontâs dairy farmers.â The advocacy in support of the legislation called for a holistic, systems change approach to legislative priorities that considers economic, ecological, public health, and climate resilience. The Vermont legislation builds on New York legislation, which in turn is inspired by Quebecâs âverification of needâ prescription model (a.k.a. emergency exemptions) that has proven to dramatically reduce the use of certain neonicotinoids, yet enables the continued use of toxic pesticides and a legacy of pesticide dependency in land management and crop production. Vermont Bill Building on New York The Vermont Bill (See pages 29 to 44 for final text) mirrors the language of New Yorkâs Birds and Bees Protection Act (S. 1856-A and A. 7640) and adopts New Yorkâs language on timing regarding when critical sections go into effect. The Vermont language contains trigger language that […]
Posted in Biodiversity, Canada, diamides, neonicotinoids, New York, Quebec, Uncategorized, Vermont | No Comments »
28
Jun
(Beyond Pesticides, July 28, 2024) Most people donât like bugs, but the fact is that insects form the foundation of human flourishing, both for their ecosystems services, like pollination of food crops, and for their aesthetic joys. But insect populations globally are declining two to four percent a year, with total losses over 20 years of 30-50 percent, according to a new study of the interacting effects of pesticides, climate, and land use changes on insectsâ status in the Midwest. Teasing out the relative influence of these stressors has been a major obstacle in determining the causes of the declines and ways to mitigate them. The icon of insect beauty in the U.S. is the monarch butterfly, whose vibrant coloring, elegant form, and spectacular migrations inspire everyone. Beyond Pesticides has covered the distressing decline of these creatures, most recently in the June 24 Daily News. Monarchs prefer milkweed plants, but also visit many other flowers. Milkweed often grows along the margins of fields, so monarchs are widely exposed to pesticides and habitat disturbances associated with agriculture. The new study was published in PLoS One by a team of scientists from the Washington Department of Fish and Wildlife, Michigan State University, […]
Posted in Biodiversity, Environmental Protection Agency (EPA), Food and Drug Administration (FDA), neonicotinoids, Pollinators, Uncategorized | 1 Comment »
24
Jun
(Beyond Pesticides, June 24, 2024) National Pollinator Week ended last week, but the crisis associated with pollinator decline and biodiversity collapse continues. If there were not enough data to prove that regulators are woefully behind the curve in protecting pollinators, yet another study was published during Pollinator Week that reminded regulators, elected officials, farmers, gardeners, all eaters, and lovers of nature that federal, state, and local environmental laws in place have been an abject and unconscionable failure in protecting the biodiversity that supports all life. The study, âInsecticides, more than herbicides, land use, and climate, are associated with declines in butterfly species richness and abundance in the American Midwest,â published in PLOS ONE, cries out as a further warning that the U.S. Environmental Protection Agencyâs (EPA) âmitigation measures,â which tinker with limited pesticide restrictions, represent a catastrophic disregard for the scientifically documented facts, according to environmental advocates. Daily News will cover this study in more detail in a later piece, however, the abstract of the journal piece is worth reprinting here in reflecting on Pollinator Week: âMounting evidence shows overall insect abundances are in decline globally. Habitat loss, climate change, and pesticides have all been implicated, but their relative effects […]
Posted in Alternatives/Organics, Biodiversity, Children, Environmental Protection Agency (EPA), neonicotinoids, Pollinators, Uncategorized | No Comments »
17
Jun
(Beyond Pesticides, June 17, 2024) Every year, Beyond Pesticides announces National Pollinator Weekâthis year beginning today, June 17âto remind eaters of food, gardeners, farmers, communities (including park districts to school districts), civic organizations, responsible corporations, policy makers, and legislators that there are actions that can be taken that are transformative. All the opportunities for action to protect pollinators, and the ecosystems that are critical to their survival, can collectively be transformational in eliminating toxic pesticides that are major contributors to the collapse of biodiversity. This is why Beyond Pesticides starts most discussions and strategic actions for meaningful pollinator and biodiversity protection with the transition to practicing and supporting organic. In launching National Pollinator Week, Beyond Pesticides makes suggestions for individual actions to increase efforts to think and act holistically to protect the environment that supports pollinators. The impact that people have starts with grocery store purchases and the management of gardens, parks, playing fields, and pubic lands. The introduction of pesticides into our food supply and our managed lands has contributed to a downward spiral that is unsustainable. The good news is that it is now proven that we do not need toxic pesticides to grow food productively and profitably […]
Posted in Announcements, Biodiversity, Environmental Protection Agency (EPA), Events, Holidays, Pollinators, Take Action, Uncategorized | No Comments »
13
Jun
(Beyond Pesticides, June 13, 2024) A study published in Conservation Letters, a journal of the Society for Conservation Biology, exposes critical shortcomings in the U.S. Environmental Protection Agency’s (EPA) ecological risk assessment (ERA) process for modeling the risks that pesticides pose to bees and other pollinators. For the study, “Risk assessments underestimate threat of pesticides to wild bees,” researchers conducted a meta-analysis of toxicity data in EPA’s ECOTOX knowledgebase (ECOTOX), an EPA-hosted, publicly available resource with information on adverse effects of single chemical stressors to certain aquatic and terrestrial species. The meta-analysis found that the agency’s approach, which relies heavily on honey bee data from controlled laboratory studies, drastically underestimates the real-world threats from neonicotinoid insecticides (and likely other pesticides) to native bees and other pollinators. The study âchallenges the reliability of surrogate species as predictors when extrapolating pesticide toxicity data to wild pollinators and recommends solutions to address the (a)biotic interactions occurring in nature that make such extrapolations unreliable in the ERA process.â Beyond Pesticides executive director Jay Feldman remarked, “EPA’s ecological risk assessment process is fundamentally flawed and puts thousands of bee species at risk of pesticide-caused population declines and extinctions.” Mr. Feldman continued, âThis underscores the urgent […]
Posted in Alternatives/Organics, Biodiversity, Drift, Ecosystem Services, Environmental Protection Agency (EPA), Habitat Protection, Increased Vulnerability to Diseases from Chemical Exposure, neonicotinoids, Parks for a Sustainable Future, Pesticide Mixtures, Pesticide Regulation, Pollinators, synergistic effects | No Comments »
12
Jun
(Beyond Pesticides, June 12, 2024) A study of pesticide contaminated algae finds that the disruption of algal communities has a devastating effect on the health of the aquatic food web. The study findings show that contact with pesticides can result in changes to âalgal physiology, causing tissue injury, developmental delay, genotoxicity, procreative disruption, and tissue biomagnificationâ that alters the dominance of algae species in the environment. This in turn âcan impact higher trophic levels and have a domino effect on the aquatic food web. It is possible for biodiversity to disappear, reducing ecosystem stability and resistance to environmental alterations,â the authors state. The study, a worldwide literature review conducted by researchers from India, South Korea, and Saudi Arabia, appears in Aquatic Toxicology. The health of aquatic ecosystems is at risk with indirect effects on nontarget species from pesticides in the environment. This includes impacts on species of fish, invertebrates, microbial communities, and marine mammals. In explaining the importance of extensively studying effects of pesticides, the researchers note, âDifferent pesticide classes have different chemical structures, which define their modes of action and affect how they interact with both target and nontarget organisms.â Because of this, the range of effects seen from […]
Posted in Aquatic Organisms, Atrazine, Bifenthrin, Biodiversity, Ecosystem Services, fish, Glyphosate, Herbicides, Imidacloprid, Oceans, Water, Wildlife/Endangered Sp. | No Comments »
06
Jun
(Beyond Pesticides, June 6, 2024) Researchers link pesticide exposure to behavioral effects on zebrafish (Danio rerio) larvae, signaling a larger issue for overall population and ecosystem effects. In a study published in Biomedicines, the authors conduct a multi-behavioral evaluation of the effects of three pesticides, both individually and as mixtures, on larvae. As the authors state, âEven at low concentrations, pesticides can negatively affect organisms, altering important behaviors that can have repercussions at the population level.â By analyzing effects on individual zebrafish with single compounds and mixtures, this study shows the dangers of pesticides in aquatic systems regarding synergy (a greater combined effect when substances mix) and the ripples created throughout entire ecosystems. Researchers from the Department of Morphology and Animal Physiology, as well as the Department of Physics, from the Rural Federal University of Pernambuco in Brazil collaborated with the Department of Biology at Indiana University in Indianapolis to perform the study. The researchers exposed zebrafish larvae to carbendazim, fipronil, and sulfentrazone to determine any behavioral effects on anxiety, fear, and spatial/social interaction for each compound separately and in combination. Each compound and mixture were applied to embryo medium, exposing fertilized zebrafish eggs. The embryos of zebrafish hatch, or […]
Posted in Aquatic Organisms, Biodiversity, Carbendazim, Chemical Mixtures, Fipronil, fish, Pesticide Mixtures, synergistic effects | No Comments »
29
May
(Beyond Pesticides, May 29, 2024) A study from the Academy of Biology and Biotechnologies and the Federal Rostov Agricultural Research Centre adds to the body of science linking pesticide use with negative impacts on soil health and bacterial communities. Antibiotic-resistance genes (ARGs), considered a class of pollutants, are found in certain types of bacteria and can spread through the environment and subsequently to humans and animals. This study, performed by researchers and soil experts, found an increase in specific bacterial families that host ARGs with exposure to pesticides. The study aims to identify the role of agricultural soils in ARG transfer and to assess the presence and prevalence of bacterial families with and without exposure to fertilizers and pesticides. Since soil serves as a habitat for a wide range of bacteria, including many that are resistant to antibiotics, analyzing the organisms within soil samples is an indicator of overall environmental health. Agricultural soils are essential in food production, and as this study states, â[I]ntensive exploitation of such soils implies the widespread use of various chemical plant protection products (insecticides, herbicides, fungicides) and mineral fertilizers, which contribute to pollution and a decrease in soil quality.â  Within this field study, there is […]
Posted in Agriculture, Antibiotic Resistance, Antimicrobial, Fertilizer, Litigation, Mutagenesis, Resistance, soil health, Soil microbiome | No Comments »
16
May
(Beyond Pesticides, May 16, 2024) In a recent study at the Institute of Biochemistry and Molecular Biology at Ulm University in Germany, published in Current Research in Toxicology, scientists exposed embryos of South African clawed frogs (Xenopus laevis) to three neonicotinoids (NEOs), which led to developmental effects down to a molecular level. These frogs are a well-established model species often used in ecotoxicology studies as bioindicators for overall environmental and ecosystem health. When amphibian species like Xenopus laevis are exposed to contaminants in the water, it leads to negative impacts in the food chain and harms biodiversity. The study concludes that exposure to NEOs directly or through contaminated water leaves entire ecosystems vulnerable. Â Â The NEOs that the embryos were subjected to include imidacloprid (IMD), thiamethoxam (TMX), and its metabolite clothianidin (CLO). NEOs are a class of insecticides that target the central nervous system of insects and lead to death. These insecticides pose a potential hazard to nontarget organisms, such as animals and humans, since they are persistent in the environment and âare found in natural waters as well as in tap water and human urine in regions where NEOs are widely used,â this study states. The authors continue by […]
Posted in Aquatic Organisms, Biodiversity, Clothianidin, Imidacloprid, Thiamethoxam, Water | No Comments »