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Pesticide exposure linked to increased risk of ALS

Survey data suggest reported cumulative pesticide exposure was associated with increased risk of amyotrophic lateral sclerosis (ALS), a progressive and fatal neurodegenerative disease, according to an article published online by JAMA Neurology. Eva L. Feldman, M.D., Ph.D., of the University of Michigan, Ann Arbor, and coauthors examined occupational exposures and environmental factors on the risk of developing ALS in Michigan. The authors evaluated assessments of environmental pollutants in the blood and detailed exposure reporting through a survey.

Through the widespread use of neonicotinoid pesticides we are killing the underpinning of the food chain

Neonicotinoids are the most widely used insecticides in the world. They've been linked to the decline of honeybees. But scientists now say they also harm many terrestrial, aquatic, and marine invertebrates. They damage sea urchin DNA, suppress the immune systems of crabs, and affect the tunneling and reproductive behavior of earthworms. They kill off the insects that many birds, amphibians, and reptiles rely on for food.

Beekeepers need to unite under the common cause of improving honey bee health

In the Nov. 2015 Bee Culture magazine I wrote of the 1973 report, “The Indispensable Honey Bee.” Compared to the 1973 report regarding the issues with honey bees today: no learning has occurred. The bee industry has continued to state they are on their last legs, and the industry is weak. While many of the commercial beekeepers from 1973 are still commercial beekeepers, or their sons have taken on the business, their sons are now aging, and their sons are highly skeptical of the long-term viability of the industry.

LINDA RAYNOLDS: Pesticides pose threat to healthy life

Earth Day, which was April 22, reminds us that life is a web, of which humans are an integral part. We think of ourselves as depending on grains and vegetables and meat for survival, but really it is the host of invertebrates and microbes that form the base of the pyramid of life, without which our carrots and cows could not exist. The use of persistent pesticides in our yards and farms poses a threat to the life forms that support us. Neonicotinoid insecticides are a class of poisons that persist for years in leaves, stems and roots of plants.

Development of a Dose-Response Model For Risk Assessment of Receptor-Mediated Effects

Two dose response models have traditionally been used in risk assessment. Most regulatory agencies assume that there is no safe level of exposure to carcinogens but that a threshold, or “safe” exposure level exists for non-carcinogens. However, recent discoveries have cast serious doubt on the validity of this concept. Dose – response relationships of several neurotoxic non-carcinogens were recently shown to be identical to that of an alkylating carcinogen, and were theoretically explained by irreversible receptor binding with an associated irreversible effect.

Tasmanian swift parrot has been listed as critically endangered

The Australian Government has listed the iconic Tasmanian swift parrot (Lathamus discolor) as critically endangered, lifting its status from endangered, following research by The Australian National University (ANU). Dr Dejan Stojanovic from the ANU Fenner School of Environment and Society is part of a team that published the 2015 research which found the swift parrot could be extinct in as little as 16 years. He welcomed the reclassification, which he said should provide greater protection for Tasmanian bird.

Risk assessment of pesticide seed treatment for farmland birds

Due to reductions in winter food resources, newly sown cereal seeds have become a key component of many bird species’ diet, but these seeds are often treated with pesticides that may cause toxic effects. We studied the abundance of pesticide-treated seeds available for birds in the field, the pesticides and their concentrations in treated seeds, and the bird species observed in the field that were feeding on these pesticide-treated seeds.

Underestimating neonicotinoid exposure: how extent and magnitude may be affected by land-use change

Potential detrimental impacts of neonicotinoids on non-target organisms, especially bees, have been subject to a wide debate and the subsequent ban of three neonicotinoids by the EU. While recent research has fortified concerns regarding the effects of neonicotinoids on ecosystem service (ES) providers, potential impacts have been considered negligible in systems with a relatively small proportion of arable land and thus lower the use of these pesticides.

Strong decline in the consumption of invertebrates by Barn Owls in Europe can be linked to insecticide use

The analysis of 616 papers about the diet of the European Barn Owl Tyto alba showed that 9678 invertebrates were captured out of 3.13 million prey items (0.31%). The consumption of invertebrates strongly decreased between 1860 and 2012. The present study demonstrates that the diet of a predator changed to a large extent during the last 150 years probably due to the negative impact of human activities on biodiversity. Bats and birds are less often captured nowadays than in the past.