(Beyond Pesticides, June 10, 2008) According to scientists at Simon Fraser University in British Columbia, Canada, real-world pesticide combinations, such as those found in Canada’s Nicomekl River, may contribute to latest decline in the region’s endangered salmon populations. The study, published in Environmental Science and Technology (ES&T), a publication of the American Chemical Society, examines the impact by simulating the river’s low-level pesticide mixture to examine its effects on fish. The study used steelhead trout, a member of the salmon family, and found that the pesticide mix can deaden the trout’s sense of smell. This could harm the fish’s ability to avoid predators, find mates, and migrate back to sea, the researchers say, and could contribute to the threatened and endangered status of salmon species. “Most laboratory studies examine the effects of a single chemical, often at high concentrations, but real-world streams contain a mixture of chemicals at very low concentrations,” Keith Tierney, Ph.D., the study’s coauthor, told ES&T. Dr. Tierney and his colleagues re-created river water in the laboratory under controlled conditions with carefully measured levels of the 10 most frequently occurring pesticides in British Columbia’s Nicomekl River. The mixture contained four major classes of pesticides, including the commonly […]

(Beyond Pesticides, May 19, 2008) A 20-year study by the National Oceanic and Atmospheric Administration (NOAA) shows that environmental laws enacted in the 1970s are having a positive effect on reducing overall contaminant levels in coastal waters of the U.S. However, the report points to continuing concerns with elevated levels of metals and organic contaminants found near urban and industrial areas of the coasts. The report, “NOAA National Status and Trends Mussel Watch Program: An Assessment of Two Decades of Contaminant Monitoring in the Nation’s Coastal Zone from 1986-2005,” findings are the result of monitoring efforts that analyze 140 different chemicals in U.S. coastal and estuarine areas, including the Great Lakes.“It’s interesting to note that pesticides, such as DDT, and industrial chemicals, such as PCBs, show significant decreasing trends around the nation, but similar trends were not found for trace metals,” said Gunnar Lauenstein, manager of the NOAA Mussel Watch program. “What is of concern is that there are contaminants that continue to be problematic, including oil-related compounds from motor vehicles and shipping activities.” Significant findings from this report include the following: Decreasing trends nationally of the pesticide DDT are documented with a majority of the sites monitored along the […]

(Beyond Pesticides, May 8, 2008) New research shows that melting Antarctic glaciers are releasing once frozen stores of persistent organic chemicals, now banned in many parts of the world. Marine biologist, Heidi Geisz, a Ph.D. student at the Virginia Institute of Marine Science studying the fate and effect of organic contaminants in the Antarctic, has found that DDT concentrations in penguins has remained at the same levels as they were 30 years ago, when DDT was widely used. Arctic animals such as whales, seals and birds have had a significant decline in their DDT levels during the past decades, while the more stationary Antarctic penguins have not. The study, “Melting Glaciers: A Probable Source of DDT to the Antarctic Marine Ecosystem,” published in Environmental Science and Technology (DOI: 10.1021/es702919n), identifies the melting snow and ice as the continued source of total DDT in this southern ecosystem. The release of DDT also means that other persistent organic pollutants (POPs), including PCBs and PBDEs — industrial chemicals that have been linked to health problems in humans, are also being released. “DDT is not the only chemical that these birds are ingesting and it is certainly not the worst,” Ms. Geisz says. Ms. […]

(Beyond Pesticides, May 7, 2008) Twenty-five vineyards representing 925 acres or 56 percent of vineyard acreage in the Walla Walla Basin in Washington state, as well as the 110-acre Walla Walla Community College (WWCC), are newly certified “Salmon-Safe” for their land practices that help accelerate salmon’s recovery. The designation means that landowners go above and beyond regulations to adopt significant and specific measures that restore in-stream habitat, conserve water, protect streamside habitat and wetlands on site, reduce erosion and sedimentation, and reduce or eliminate the use of chemical pesticides.Certification is awarded only after comprehensive on-site assessments by independent inspectors based on Salmon-Safe’s rigorous standards. Salmon-Safe is a leading regional eco-label that in 11 years has certified more than 60,000 acres of farm and urban lands in Oregon and Washington, including one-third of Oregon’s vineyard acreage, as well as the headquarters campuses of Nike, Washington State Department of Ecology, and Kettle Foods.“The magnitude of the participation underscores the Walla Walla valley’s leadership in adopting and committing to sustainable practices that benefit people and land, and help salmon spawn and thrive,” said Dan Kent, Salmon-Safe managing director. “The certifications and assessments also mark a major expansion of Salmon-Safe east of the Cascades, […]

(Beyond Pesticides, April 10, 2008) Common frogs that live in suburban areas are more likely than their rural counterparts to develop reproductive abnormalities, according to David Skelly, PhD, professor of ecology at the Yale School of Forestry and Environmental Studies. This phenomenon becomes a serious concern as the frog’s mating season begins, leaving researchers to wonder: will frogs be clear on their role in the annual ritual? Research by Dr. Skelly, soon to be published, focuses on the common green frog, Rana clamitans, within the Connecticut River Valley. A total of 233 frogs were collected from various ponds and landscapes with the river valley and among them 13 percent have abnormalities occurring in their reproductive organs. In urban areas, 18 percent of the collected frogs are intersex, and in suburban areas 21 percent. Frogs collected from agricultural areas have the lowest rate of reproductive problems with just 7 percent classified as intersex. According to Dr. Skelly, the more suburban the land cover, the more likely the abnormalities. “This is the first evidence that I think anyone has provided that agriculture is doing anything but pushing those rates higher,” remarked Dr. Skelly of the intersex phenomena. In an attempt to explain […]

Action: Stop Congress from undermining USDA’s ability through its conservation programs to (i) curtail dangerous pesticides that exceed safety thresholds or have not been fully tested, and (ii) advance the transition to organic production and land management. Issue: USDA should retain its discretionary authority to restrict or prohibit specific classes of pesticides as a condition for participating in conservation programs. Language now on the table as a conference amendment in current Farm Bill negotiations: “The Secretary shall not prohibit [or “discriminate against” in the House-passed Farm Bill] the use of specific registered pesticides or classes of pesticides as a pre-condition for participation in programs under that [conservation] subtitle,” known as the Goodlatte pesticide amendment, named for its original sponsor, minority leader in the House Agriculture Committee Rep. Bob Goodlatte (R-VA). Threat: Conferees to the Farm Bill (Democrat and Republican Senators and Representatives from the Agriculture Committees of Congress who are negotiating the final Farm Bill language), are considering a provision included in the House Farm Bill (SEC. 11305) that would prohibit USDA from exercising its authority to restrict specific pesticides in its conservation programs. Time Frame: Conferees are debating this issue now and intend to resolve it in the next […]

(Beyond Pesticides, March 24, 2008) Scientists at the U.S. Geological Survey (USGS) announced that they have identified ten contaminants, including pesticides, in the Potomac River, which flows through downtown Washington, DC, that could be responsible for the alarming discovery of “intersex fish,” male fish producing eggs. The suspected chemicals include: atrazine, a common herbicide used in agriculture and on lawns that is already linked to sexual abnormalities in frogs; insecticides chlorpyrifos and endosulfan; the herbicide metolachlor; and two chemicals used to add fragrance to perfumes, soaps and other products, tonalide and galaxolide. To collect the samples, USGS scientists suspended a device intended to serve as a facsimile fish in the Potomac River near the Washington, DC’s Blue Plains sewage plant. The device had a plastic-coated tube, which simulated a fish’s permeable skin, and a layer of simulated fat. According to the Washington Post, the tests on this fake fat revealed a range of potentially worrisome pollutants. Most have been found in other streams around the U.S. “The types of things we’re finding are the types of things that are associated with everyday life,” David Alvarez, a U.S. Geological Survey research chemist who analyzed samples from the Potomac told the Washington […]

(Beyond Pesticides, March 20, 2008) A 2000-2005 U.S. Geological Survey (USGS) study, Pesticide Occurrence and Distribution in the Lower Clackamas River Basin, Oregon, 2000-2005, finds a variety of pesticides in river and tributary samples, along with trace-level detections of pesticides in treated drinking-water samples collected from a drinking-water treatment plant that uses the Clackamas River as a raw-water source. While the federal government is quick to point out that detections in drinking water are below existing Environmental Protection Agency (EPA) drinking-water standards and most river samples are below the agency’s aquatic life benchmarks, studies show hazardous endocrine-disrupting and immunosuppressive effects at extremely low levels — far below EPA standards. A total of 63 pesticide compounds were detected in 119 water samples collected during storm and non-storm conditions using low-level detection methods. More pesticides were detected in the tributaries than in the Clackamas River mainstem. One or more of 15 pesticides were detected in nine of 15 samples of drinking water. Environmental and public health advocates are concerned that these results add to a pattern of contamination across the country. USGS data released in 2008, shows widespread pesticide contamination in the Chesapeake Bay watershed, and a 2004 USGS report of nationwide […]

(Beyond Pesticides, March 12, 2008) BioDiversity Research Institute, a nonprofit ecological research group, released a new report that was presented March 12, 2008 to Maine’s Joint Standing Committee on Natural Resources. Entitled “Contaminant Screening in Maine Birds,” it documents over 100 harmful contaminants that were found in Maine bird eggs. Scientists collected 60 eggs, representing 23 species of birds, all of which test positive for chemical contaminants, some at levels believed to be harmful to the birds. Flame retardants (PBDEs), industrial stain and water repellants (PFCs), transformer coolants (PCBs), pesticides (OCs), and mercury are found in all 23 species of birds tested. The bird species studied live in a variety of habitats: on Maine’s ocean, salt marshes, rivers, lakes and uplands. “This is the most extensive study of its kind to date and the first time industrial stain and water repellants were discovered in Maine birds,” says report author, senior research biologist Wing Goodale with the Institute. The Common loon, Atlantic puffin, piping plover, belted kingfisher, great black-backed gull, peregrine falcon and bald eagle have the highest contaminant levels. The flame retardant deca-BDE, banned last year in Maine, is found in eight species. Overall, eagles carry the greatest contaminant load, […]

(Beyond Pesticides, February 29, 2008) The National Park Service (NPS) recently released a report documenting airborne pesticides.  The report of the  Western Airborne Contaminants Assessment Project (WACAP), with data collected from 2002 to 2007, found high concentrations of “numerous” airborne contaminants, including current and former use pesticides. Contamination is widespread throughout twenty parks throughout the western United States and Alaska, exceeding consumption levels for humans and wildlife in some areas. According to the report, the contaminants of second and third “highest concern” are “Dieldrin – an acutely toxic insecticide banned from use in the U.S. since 1987 that decreases the effectiveness of the immune system” and “DDT – an insecticide banned in the U.S. since 1972 that reduces reproductive success.” NPS also reported that Dieldrin and DDT levels exceeded the threshold for recreational fishermen in several parks, and Dieldrin levels exceeded that for subsistence fishermen in all but Olympic National Park. Fish-eating birds are also at risk in some parks. While NPS could not establish a correlation between contaminant levels and fish reproductive effects due to small sample size, two parks produced individual “intersex” fish. However, NPS stated, “This condition is commonly associated with exposure to certain contaminants (e.g., dieldrin […]

(Beyond Pesticides, February 20, 2008) Pesticides that run off agricultural land and mix in rivers and streams combine to have a greater than expected toxic effect on the salmon nervous system, according to researcher Nathaniel Scholz, PhD, a zoologist with the National Oceanic and Atmospheric Administration (NOAA) in Seattle. Dr. Scholz, who presented his findings at the symposium entitled From Kitchen Sinks to Ocean Basins: Emerging Chemical Contaminants and Human Health,  which was organized by NOAA and hosted at the American Association for the Advancement of Science (AAAS) Annual Meeting, had previously looked at the effects of individual pesticides. However, to get a more realistic idea of exposure, combinations of several pesticides were used and juvenile salmon exposed to them two at a time. The results surprised Dr. Scholz and his team. The total impact observed from combined pesticides was greater than the sum of the individual pesticides, demonstrating a synergistic effect. Some pesticides that were not deadly when tested in individual trials killed all salmon exposed to combinations. A mixture of the pesticides diazinon and malathion, exhibited the greatest synergistic effect and killed all the salmon exposed to them, even at the lowest concentrations. “It was eye opening,” Dr. […]

(Beyond Pesticides, January 23, 2008) Agribusiness giants Dow AgroSciences and Monsanto have successfully persuaded the state of Minnesota to reconsider their water-quality limit for the chemical, acetochlor. Scientists representing the industry presented their own studies to the Minnesota Pollution Control Agency (MPCA) and explained that the state’s original draft limit for acetochlor was too strict. Despite three years of research conducted by the state, scientists from Dow and Monsanto presented officials at the MCPA with six published studies- one of them in Chinese- which they claimed were overlooked by the state when determining the standard for acetochlor in waterways. As a result, the MPCA has decided to allow 3.6 parts per billion of acetochlor in rivers, more than twice the concentration of the 1.7 parts per billion previously proposed. As a result, three of five streams classified as ”˜impaired’ by acetochlor, including a popular trout stream in southeastern Minnesota, can no longer be considered polluted. Some environmental advocacy groups question whether the MPCA gave favorable treatment to the pesticide makers, claiming that other research that suggest that the chemical can cause ecological damage have not been seriously considered. “It looks like there’s a double standard, that industry can come in […]

(Beyond Pesticides, December 20, 2007) Responding to numerous requests from the public for more time to comment, the U.S. Fish and Wildlife Service has opened an additional 60-day public comment period on a draft mosquito management policy until February 17, 2008. The original press release on the proposal, issued on October 15, 2007, and the Federal Register Notice (72 FR 58321-58333) outlines guidance for determining the conditions under which national wildlife refuges will control mosquitoes. Notification of the public comment period was published in the Federal Register December 19, 2007. The Service received 35 comments during the original 45-day comment period, which closed on November 29, 2007. Mosquito Control Districts in several states as well as members of the public asked for more time to respond. The Service currently allows some form of mosquito control by state or local vector control agencies under Special Use Permits on approximately 40 national wildlife refuges, most of them in coastal areas. An interim Director’s Order, issued in May 2005, provided guidance for mosquito management on refuges while a permanent policy was being developed. The draft policy states that the Refuge System will allow populations of native mosquito species to exist unimpeded unless they […]

(Beyond Pesticides, November 7, 2007) A lawsuit was filed in federal court on Monday by fishing and environmental groups seeking to force the federal government to uphold five-year-old rules aimed to keep toxic agricultural pesticides from endangering salmon and steelhead. The lawsuit, filed in the U.S. District Court in Seattle, petitions the court to order the National Marine Fisheries Service (NMFS) to identify measures needed to protect salmon from the pesticides and to complete required consultations with the Environmental Protection Agency (EPA). The NMFS has failed to carry out these measures first ordered in 2002 by federal court. It was ordered to consult with the EPA to develop permanent methods for protecting salmon and steelhead from 54 toxic pesticides found in west coast salmon streams. Under the federal Endangered Species Act, the NMFS is required to complete such actions within 90 days. “Apparently what it takes to get this administration to do its job under [the Endangered Species Act] is to have someone there enforcing the law every step of the way,” said Joshua Osborne-Klein, an attorney for Earthjustice, the environmental public interest law firm representing the advocates. Pesticides have been detected in every major salmon stream in the Pacific […]

(Beyond Pesticides, November 5, 2007) Forty-four organizations signed on to a letter to the National Organic Standards Board (NOSB) on October 26, asking the board to protect organic aquaculture standards by prohibiting the USDA’s organic label from being placed on fish raised in open net pens or fed wild fish. Six months ago, the NOSB voted overwhelmingly to temporarily ban the labeling of any fish raised under these circumstances as organic until comments from industry and the organic community on the issue could be heard. During this time, the Aquaculture Working Group issued an Interim Report, which proposes conditions under which wild fishmeal and oil could be used as feed ingredients and open net pen fish farming would be allowed in organic aquaculture. In response to the report’s suggestions, the co-signing organizations conclude that while the farming of herbivorous finfish may be conducted within organic regulations, farming carnivorous finfish (including salmon) in open net cage systems is an inherently flawed farming practice, incompatible with organic principles. “Raising fish in this manner directly contradicts USDA Organic regulations; putting a USDA Organic label on these fish is like trying to force a round peg into a square hole,” said Center for Food […]

(Beyond Pesticides, August 13, 2007) Greenland sharks, which inhabit some of the least populated regions on Earth in seemingly pristine Arctic waters, contain high amounts of human-manufactured industrial waste in their bodies, including toxic pesticide byproducts. The findings are available online in Marine Pollution Bulletin (in press), entitled “Dioxins and PCBs in Greenland shark (Somniosus microcephalus) from the North-East Atlantic.” According to the team of researchers at Stockholm University, the highest measured concentration found is for the world’s most toxic dioxin, TCDD, a compound found in the herbicide Agent Orange, which the U.S. military used during the Vietnam War. The herbicide was used for other applications from 1961 to 1971. The study also names another set of discontinued chemicals, polychlorinated biphenyls, or PCBs, as the main source of the contaminants found in the Greenland sharks. PCBs were banned in the 1970s, which illustrates how persistent such compounds are in the environment and how long-living, top predator species may carry them for decades. Project leader Dr. Åke Bergman, Ph.D., an environmental chemist at Stockholm University, told Discovery News that he and his team decided to focus on Greenland sharks since their normal lifespan may exceed 100 years, based on an annual […]

(Beyond Pesticides, August 2, 2007) According to the Associated Press (AP), a new study finds frogs in Vermont living near farms are more than twice as likely as those living elsewhere to have deformities like missing legs. Yale University ecologist David Skelly, Ph.D., told the AP he decided to look at Vermont frogs because the state has been a hot spot during the last 10 years for deformed frogs. “We went to all these wetlands and cataloged where the deformities were found, and what kind of landscapes seemed to pose higher risks, if any,” Dr. Skelly said. “The answer was, frogs growing up in proximity to agriculture were more than two times as likely to have deformities. This doesn’t say it is chemical pesticides, but you can’t credibly consider this problem of the frogs without at least evaluating whether pesticides are involved.” Richard Levey, a biologist with the Vermont Agency of Natural Resources, said two common farm chemicals, atrazine and metolachlor, had been found in trace amounts in water from wetlands where deformed frogs had been found. But he told the AP that the concentrations were far below those thought to have any effect on aquatic life. Research by Tyrone […]

(Beyond Pesticides, July 23, 2007) New research finds several species of freshwater fish have lower temperature tolerances when exposed to the widely used pesticides endosulfan and chlorpyrifos. The discovery reveals another key pesticides issue in the global warming debate. The study, “The Effects of Three Organic Chemicals on the Upper Thermal Tolerances of Four Freshwater Fishes” (Environmental Toxicology and Chemistry, July 2007), is the work of Ronald Patra of Australia’s Department of Environment and Conservation and colleagues. The study establishes the upper temperature tolerances of both unexposed and exposed silver perch, eastern rainbowfish, western carp gudgeon and rainbow trout. Exposed fish were given sublethal doses of endosulfan, chlorpyrifos or phenol. The results show exposure to endosulfan cause a decrease of temperature tolerance in silver perch by 2.8 °C, eastern rainbowfish 4.1 °C, western carp gudgeon 3.1 °C, and rainbow trout 4.8 °C. Chlorpyrifos decreases temperature tolerance in silver perch by 3.8 °C, eastern rainbowfish 2.5 °C, western carp gudgeon 4.3 °C, and rainbow trout 5.9 °C. Phenol is not shown to cause a significant decrease in tolerance. The authors conclude, “The reduction in thermal tolerance of fish in the presence of endosulfan and chlorpyrifos suggest that, not only does temperature […]

(Beyond Pesticides, July 17, 2007) A study conducted by Canadian researchers show that high concentrations of POPs, or Persistent Organic Pollutants, can be observed in humans and other air-breathing animals even though they may not accumulate in fish. This suggests that current risk assessment methodologies need to be changed for identifying potential POPs in birds and mammals. POPs are synthetic, toxic chemicals that persist in the environment, bioaccumulate in food chains and are common contaminants in fish, dairy products and other foods. These compounds are generally accepted to be hydrophobic and fat-soluble. Screening for these bioaccumulative compounds is normally conducted with laboratory tests using fish. However researchers Barry C. Kelly, and Frank Gobas, Ph.D., at Simon Fraser University in Burnaby, British Columbia report that this methodology may overlook a significant number of pollutants that pose health risks to air-breathing animals. The study entitled “Food Web—Specific Biomagnification of Persistent Organic Pollutants” (Science 2007, v317, p236) examines the biomagnification of moderately hydrophobic compounds with octanol-water partition coefficients (Kow) between 100 and 100,000 (currently, compounds with Kow greater than 100,000 are generally categorized as bioaccumulative compounds and tend to be hydrophobic and fat-soluble) and compounds with high octanol-air partition coefficients (Koa). The compounds […]

(Beyond Pesticides, July 9, 2007) New field and laboratory research reveals that organochlorine pesticides reduce the hatching rate of alligator eggs. This finding adds to previous studies demonstrating that pesticides cause endocrine disruption in alligators, resulting in poorly developed reproductive organs. American alligators, which were delisted from the endangered species list in the late 1980s, are still experiencing low hatching rates around contaminated wetlands. In Florida, many wetlands were converted or are adjacent to farmlands and some farmlands have been restored back into wetlands in efforts to improve ecosystem health. Agricultural runoff has altered the surrounding aquatic environments by depositing pesticide residuals and skewing nutrient levels. Organochlorine pesticides, such as chlordane, toxaphene and dieldrin, have been especially problematic due to their persistent nature. The link between pesticides and reproductive problems in alligators has been firmly established since the 1990s. University of Florida zoologist Louis Guillette, Ph.D., found pesticides are linked to smaller penises and abnormal egg development in exposed alligators. Florida Fish and Wildlife Conservation Commission official Allan Woodward has also observed fewer hatches around lakes with high pesticide levels. He reports the hatching rate has improved around Lake Apopka, a large lake in central Florida, during the last two […]

(Beyond Pesticides, June 29, 2007) On June 28, 2007, forty years after it received protection under the Endangered Species Act (ESA) and thirty-five years after the banning of DDT in the U.S., the bald eagle was removed from the ESA’s “threatened” list. Bald eagle populations declined dramatically in the last century, attributed mostly to the accumulation of the pesticide DDT in fish, a staple of the eagle’s diet. The pesticide gradually poisoned females, causing them to produce thinly-shelled eggs that broke easily, preventing the embryos from growing. Years of hunting, accidental poisoning and habitat loss took an additional toll. “The rescue of the bald eagle from the brink of extinction ranks among the greatest victories of American conservation.” said John Flicker, President of the National Audubon Society. “Like no other species, the bald eagle showed us all that environmental stewardship has priceless rewards. In every state, parents and grandparents can still point to the sky and share a moment of wonder as a bald eagle soars overhead.” The U.S. Fish and Wildlife Service (FWS) in 1967 listed the bald eagle as endangered, a designation that gave the bird legal protection from harmful human activities and in 1972, the U.S. Environmental […]

(Beyond Pesticides, June 26, 2007) According to the Northwest Coalition for Alternatives to Pesticides (NCAP), the federal government continues to allow toxic pesticides to poison endangered and threatened salmon and steelhead without complying with a federal court’s decision to protect these species from such poisonings. As a result, a 60-day notice of intent to sue has been issued to the National Marine Fisheries Service (NMFS), citing unreasonable delay. Despite the passage of almost five years since the first court ruling, NMFS has yet to identify a single measure needed to protect salmon and steelhead from toxic pesticides. Now, fishing and environmental groups are again asking NMFS to fulfill its responsibility to protect endangered Pacific salmon. Glen Spain of the Pacific Coast Federation of Fishermen’s Associations, a commercial fishing industry trade association that was a co-plaintiff in the original action against EPA, commented: “It just makes no sense for the very federal agency charged with recovering west coast salmon to still allow poisons in our rivers known to kill them. Inaction is no longer an option, and threatens the whole west coast salmon fishing economy.” Toxic pesticides have been found in every Northwest river and stream tested. Many rivers are contaminated […]

(Beyond Pesticides, June 22, 2007) The U.S. Senate (S.Res. 580) and the U.S. Department of Agriculture has designated June 24-30, 2007 as National Pollinator Week. This week has been designated to recognize the important work of pollinators and their role in ecosystem health. The Pollinator Partnership, sponsored by the North American Pollinator Protection Campaign (NAPPC) and their partners, has put together numerous resources and events all across the country to raise awareness and support for pollinators and pollinator-friendly practices. Pollinators include approximately 200,000 species of beneficial insects such as bees, flies, wasps, butterflies, to name a few, along with vertebrates such as bats, birds and small mammals. Pollination is the process of pollen transfer between flowering plants that leads to fertilization. Without pollination, most plants would be unable to produce fruits or seeds and many of the foods consumed would no longer be available. Pollinators are responsible for pollinating about 75 percent of all crop plants worldwide. This translates to approximately 20 billion dollars worth of food and medicinal products. Other animals and plants also rely on pollinators for food and shelter. Recent studies indicate that these important species are disappearing. Loss of habitat, diseases and the widespread use of […]