Unpublished field trials by pesticide manufacturers show their products cause serious harm to honeybees at high levels, leading to calls from senior scientists for the companies to end the secrecy which cloaks much of their research.
The research, conducted by Syngenta and Bayer on their neonicotinoid insecticides, were submitted to the US Environmental Protection Agency and obtained by Greenpeace after a freedom of information request.
Neonicotinoids are the world’s most widely used insecticides and there is clear scientific evidence that they harm bees at the levels found in fields, though only a little to date showing the pesticides harm the overall performance of colonies. Neonicotinoids were banned from use on flowering crops in the EU in 2013, despite UK opposition.
Bees and other insects are vital for pollinating three-quarters of the world’s food crops but have been in significant decline, due to the loss of flower-rich habitats, disease and the use of pesticides.
The newly revealed studies show Syngenta’s thiamethoxam and Bayer’s clothianidin seriously harmed colonies at high doses, but did not find significant effects below concentrations of 50 parts per billion (ppb) and 40ppb respectively. Such levels can sometimes be found in fields but concentrations are usually below 10ppb.
Continue reading “Pesticide Manufacturers Own Tests Reveal Serious Harm To Honeybees “
A new study from the University of Exeter, published in the journal Ecology Letters, found that phytoplankton — microscopic water-borne plants — can rapidly evolve tolerance to elevated water temperatures. Globally, phytoplankton absorb as much carbon dioxide as tropical rainforests and so understanding the way they respond to a warming climate is crucial.
Phytoplankton subjected to warmed water initially failed to thrive but it took only 45 days, or 100 generations, for them to evolve tolerance to temperatures expected by the end of the century. With their newfound tolerance came an increase in the efficiency in which they were able to convert carbon dioxide into new biomass.
The results show that evolutionary responses in phytoplankton to warming can be rapid and might offset some of the predicted declines in the ability of aquatic ecosystems to absorb carbon dioxide as the planet warms.
Continue reading “Don’t Forget Plankton In Climate Change Models”
Species across land, rivers and seas decimated as humans kill for food in unsustainable numbers and destroy habitats
The number of wild animals on Earth has halved in the past 40 years, according to a new analysis. Creatures across land, rivers and the seas are being decimated as humans kill them for food in unsustainable numbers, while polluting or destroying their habitats, the research by scientists at WWF and the Zoological Society of London found.
“If half the animals died in London zoo next week it would be front page news,” said Professor Ken Norris, ZSL’s director of science. “But that is happening in the great outdoors. This damage is not inevitable but a consequence of the way we choose to live.” He said nature, which provides food and clean water and air, was essential for human wellbeing.
“We have lost one half of the animal population and knowing this is driven by human consumption, this is clearly a call to arms and we must act now,” said Mike Barratt, director of science and policy at WWF. He said more of the Earth must be protected from development and deforestation, while food and energy had to be produced sustainably.
Continue reading “Earth Has Lost 50% Of Its Wildlife In The Past 40 Years”
An interesting animation showing mathematical concepts expressing their form in nature in things such as Phi, The Golden Ratio & Fibonacci Sequence, absolutely fascinating stuff. Mans knowledge of this stuff possibly goes back 1000’s of years, all the way back to the time of the Pyramids and beyond. If your not familiar with these concepts at all then it may serve you well to familiarise yourself with them, maybe even things such things as Sacred Geometry too.
“When the Spanish filmmaker and graphic designer Cristóbal Vila looks at nature, he sees numbers, and the remarkable elegance of mathematics. The theorems and geometric equations that explain natural phenomena – such as the shape of an insect’s eye, or the structure of a seashell – come to life in this short documentary, and simultaneously bring beauty to mathematics and logic to nature. Uniting music and animation with mathematics, Nature by Numbers is a sensory science film, an immersion in the world of the minute and microscopic, and an exciting introduction to some of the great geometric and scientific concepts.”
Continue reading “Nature By Numbers”
Time seems to pass more slowly for lighter animals with faster metabolisms
One “dog year” supposedly equals seven human years. But does one year feel like seven years to a dog? Evidence suggests that distinct species do indeed experience passing time on different scales. A recent study in Animal Behavior reveals that body mass and metabolic rate determine how animals of different species perceive time.
Time perception depends on how rapidly an animal’s nervous system processes sensory information. To test this ability, researchers show animals a rapidly flashing light. If the light flashes quickly enough, animals (and humans) perceive it as a solid, unblinking light. The animal’s behavior or its brain activity, as measured by electrodes, reveals the highest frequency at which each species perceives the light as flashing. Animals that can detect the blinking at higher frequencies are perceiving time at a finer resolution. In other words, movements and events will appear to unfold more slowly to them—think slow-motion bullet dodging in an action movie.
Continue reading “Small Animals Live In A Slow-Motion World”
“Here’s just another reason to start your plants from seeds and cuttings and bring them on yourself rather than buy from Garden Centers and Supermarkets. You could always buy them from a local guy you know and trust and keep the money in the community. Also buying organic certified plants may reduce your chances of pesticide exposure for you and the wildlife.”
Gardeners Beware (2014): Bee-toxic pesticides found in “bee-friendly plants sold at garden centers across the U.S. and Canada
Many “bee-friendly” home garden plants sold at Home Depot, Lowe’s and Walmart have been pre-treated with pesticides shown to harm and kill bees, according to a study released today by Friends of the Earth and allies.
The study, Gardeners Beware 2014, shows that 36 out of 71 (51 percent) of garden plant samples purchased at top garden retailers in 18 cities in the United States and Canada contain neonicotinoid (neonic) pesticides — a key contributor to recent bee declines. Some of the flowers contained neonic levels high enough to kill bees outright assuming comparable concentrations are present in the flowers’ pollen and nectar. Further, 40 percent of the positive samples contained two or more neonics.
The study is a larger follow up to a first-of-its-kind pilot study released by Friends of the Earth last August. The new study expanded the number of samples and number of locations where plants were purchased, and also assessed the distribution of neonic pesticides between flowers and the rest of the plant.
“The high percentage of contaminated plants and their neonicotinoid concentrations suggest that this problem continues to be widespread,” said Lisa Archer, director of the Food & Technology program at Friends of the Earth-U.S. “Most gardeners have no idea that their gardens may be a source of harm to bees. We’re calling on retailers to get neonicotinoid pesticides out of their plants and off their shelves as soon as possible. Until then, gardeners should buy organic plants to ensure the safety of bees.”
Continue reading “Pesticides Found On “Bee-Friendly” Plants Sold At Garden Centers”
Plans to create two huge marine sanctuaries in Antarctica have failed for a third time, after Russia again headed nations which blocked the bids.
The meeting of the Commission for the Conservation of Antarctic Marine Living Resources in Australia had sought to protect the Ross Sea and an area off East Antarctica from exploitation.
But delegates from 24 countries, plus the EU, failed to reach a consensus.
Environmental groups called it called it a “dark day” for the Antarctic.
Continue reading “Russia And China Block Plans For Antarctic Marine Reserves”