{"id":15181,"date":"2019-04-18T17:32:53","date_gmt":"2019-04-18T17:32:53","guid":{"rendered":"https:\/\/drugprevent.org.uk\/ppp\/?p=15181"},"modified":"2019-12-16T20:16:05","modified_gmt":"2019-12-16T20:16:05","slug":"marijuana-an-environmental-buzzkill","status":"publish","type":"post","link":"https:\/\/drugprevent.org.uk\/ppp\/2019\/04\/marijuana-an-environmental-buzzkill\/","title":{"rendered":"Marijuana: An Environmental Buzzkill"},"content":{"rendered":"<h4 class=\"deck\" style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Illegal pot growers have turned public lands into industrial agricultural sites. And the ecosystem effects are alarming.<\/span><\/h4>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15270\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-1-300x231.jpg\" alt=\"\" width=\"300\" height=\"231\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-1-300x231.jpg 300w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-1-768x591.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-1.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 8pt;color: #0000ff\">Research ecologist Mourad Gabriel is one of the few scientists studying illegal grow sites in California\u2019s overrun national forests.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">On a hot August morning, Mourad Gabriel steps out of his pickup onto the gravel road that winds up the side of Rattlesnake Peak. Dark-bearded and muscular, the research ecologist sports a uniform of blue work clothes, sturdy boots and a floppy, Army-style camo hat. He straps on a pistol. \u201cJust to let you know,\u201d Gabriel says, sensitive to the impression the gun makes, \u201cit\u2019s public land, so I open-carry.\u201d<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Another 100-degree day is promised. Gabriel and his four field assistants are headed to work in California\u2019s Plumas National Forest, a few hours\u2019 drive from Lake Tahoe, at the northern terminus of the Sierra Nevada. The U.S. Forest Service (USFS) has enlisted Gabriel to assess the scars from rampant marijuana cultivation. Today\u2019s field site: an illegal marijuana plantation known as the Rattlesnake Grow.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel doesn\u2019t take chances because he\u2019s been threatened personally. In 2014, someone poisoned his family dog with a pesticide that\u2019s used at the grow sites. The intruder crept onto Gabriel\u2019s property at night and scattered poisoned meat in his backyard. And last year during raids on plots elsewhere in California, two police dogs were stabbed by men fleeing the scene.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">So whenever Gabriel enters a cultivation site with his research team \u2014 even one that\u2019s been abandoned, as this one is \u2014 he always goes in first.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15271\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-2-300x231.jpg\" alt=\"\" width=\"300\" height=\"231\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-2-300x231.jpg 300w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-2-768x591.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-2.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 8pt;color: #0000ff\">U.S. Forest Service officers collect coils of plastic pipe used to divert water from springs to marijuana plants at an illegal grow site on public lands.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Most of the U.S. domestic marijuana supply is raised in California. Some pot is grown on private property for legal use by medical marijuana patients. These operations can be monitored, and with Californians having legalized recreational pot last November, the regulation is sure to tighten. But in popular pot-growing regions like Humboldt, Mendocino and Trinity counties \u2014 closer to the Northern California coast in the so-called Emerald Triangle \u2014 environmental regulation has been slow to catch up. Commandeering streams, growers divert the water into high-tech greenhouses, to the detriment of the aquatic life lower in the drainage, including the threatened coho salmon. Biologists for the California Department of Fish and Wildlife have shown that thirsty marijuana plantations can dry up water sources.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">What\u2019s more, the rest of the crop \u2014 the vast black-market portion \u2014 is planted on public or tribal lands by people who ignore the environmental consequences of their activity. When they\u2019re captured, some turn out to be Mexican drug cartel workers, and others come from smaller independent groups. U.S. authorities concede that the great majority of these \u201ctrespass grows\u201d are never detected. Even after sites are cleared, the shadowy growers may reclaim them the next year.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u201cThe public doesn\u2019t understand the industrial scale of this,\u201d says wildlife biologist Craig Thompson.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">But if you have heard anything about streams being polluted or animals and birds being poisoned by marijuana production, it\u2019s almost certainly because of Gabriel, a soft-spoken scientist who now and then unleashes his inner Rambo.<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Marijuana: An Environmental Buzzkill\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/P70qt9AOTG4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><strong>After the Bust<\/strong><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel takes his team of biologists over the top of an open, sunbaked ridge and down the other side of the mountain. Immediately, burnt and toppled trunks of pine and fir and head-high tangles of wild lilac shrubs impede the way.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Ten years ago, the Moonlight Fire destroyed 65,000 acres of forest in the Plumas. The marijuana growers stole into the broad footprint left by the blaze in dozens of places. In the section we\u2019re hiking, they cut trails and cleared a series of plots on a steep slope above a ravine. Then the trespassers dug out three springs and diverted their flow into half-inch black plastic piping, which they threaded through the cover of vegetation to their network of plots below. The waterlines emptied into tarp-sealed pits that could store hundreds of gallons of water. Having started thousands of marijuana seedlings in plastic cups, the growers planted them among the shrubs throughout the plots. Each bright green plant was irrigated via drip lines, some triggered by a battery-powered timer. Although the mountainside faced north and east, light was no problem. Where it used to be blocked by trees, the strong California sun now slathered the crop.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel was with the rangers and deputies when they busted the site in 2015 and uprooted more than 16,000 plants. Judging by bags left around the site back then, he suspects at least 4,000 pounds of potent fertilizer were used. He also recorded several empty containers of a concentrated organophosphate insecticide \u2014 a lethal nerve poison that\u2019s toxic to wildlife.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-15276\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/trouble-in-pot-country2-503x1024.jpeg\" alt=\"\" width=\"440\" height=\"897\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/trouble-in-pot-country2-503x1024.jpeg 503w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/trouble-in-pot-country2-147x300.jpeg 147w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/trouble-in-pot-country2.jpeg 377w\" sizes=\"auto, (max-width: 440px) 100vw, 440px\" \/><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel\u2019s non-profit organization, Integral Ecology Research Center (IERC), was hired to assess the damage to water sources, soils and sensitive plants and animals. They also inventoried toxic waste, piping, camp materials and trash. Now it\u2019s up to the Forest Service to decide how to repair the damage. Gabriel, enlisting local volunteer groups, will assist with the cleanup, too. The service he offers is soup-to-nuts.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u201cHe\u2019s passionate. He\u2019s a character,\u201d says USFS\u2019s Thompson, who collaborates with Gabriel on research. \u201cHe has continued to shine a light on the issue, though it\u2019s still under the radar.\u201d<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><strong>Connecting the Dots<\/strong><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">The first glimmer of impacts to wildlife came to Gabriel from fishers. A fisher \u2014 a type of weasel whose body is about the size of a housecat\u2019s \u2014 is a denizen of deep woods. It has a wide face and long furry tail, and it can run up and down trees like the woodrats and squirrels it hunts. Fishers have never been overly abundant in the mountains of the West Coast, and their population plummeted after a century of logging and trapping. In the 21st century, biologists have tried to restore the Pacific fisher by reintroducing young animals and tracking them with radio collars. But the fishers\u2019 expansion has been slow because they have been dying more rapidly than researchers expected.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel joined the fisher reintroduction project in 2009. At the time, he was completing his Ph.D. at the University of California, Davis. He credits an uncle for interesting him in the outdoors. The uncle was also a taxidermist; hence, young Mourad developed an interest in the interiors of animals. In high school, a vocational aptitude test suggested that he could be a game warden, park ranger or biologist. As an undergrad at Humboldt State University, he took courses supporting all three. Gabriel met his future wife, Greta Wengert, while they were both studying wildlife biology in college. After marrying, the two founded IERC in Blue Lake, Calif.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15272\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-3-300x231.jpg\" alt=\"\" width=\"300\" height=\"231\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-3-300x231.jpg 300w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-3-768x591.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-3.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 8pt;color: #0000ff\">Craig Thompson, a USFS biologist, drops a water filter into a High Sierra stream near a marijuana grow site. Tests have turned up pesticides and fertilizers coming from the grows.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel\u2019s work for the fisher reintroduction project was lab-based. He conducted necropsies of dead animals that Thompson\u2019s field researchers had picked up. Examining a fisher carcass one day, Gabriel found that its organs had turned to mush. The fisher had been poisoned by a compound that blocks clotting and prompts unchecked internal bleeding, a so-called second-generation anticoagulant rodenticide (AR). D-CON, commonly used against mice and rats, is a familiar brand of AR. But how did a forest carnivore absorb a pesticide typically used around farms and houses?<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Gabriel remembers wondering if this one fisher was an outlier. \u201cSo we went back to the archival liver tissue,\u201d he says. When he inspected frozen specimens and collected additional carcasses from colleagues, Gabriel discovered that rodenticides had, if not killed, then at least tainted 85 percent of expired fishers.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u201cIt took a while to connect the dots,\u201d he says. From his field experience he was familiar with illegal pot grows, which had plagued the backcountry terrain for 20 years or more. \u201cWe\u2019ve all run into it. We\u2019ve been trained,\u201d Gabriel says. \u201cIf you come upon a site, you do a 180 and walk away.\u201d<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><strong>Mounds of Pesticide<\/strong><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Law enforcement officers from different agencies asked him if rat bait from grow sites might be the culprit. It made sense; woodrats and squirrels would gnaw the marijuana plants.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">If the growers scattered AR and the rodents were sapped by internal bleeding, they would become easier prey for fishers. Bioaccumulation, as the process is known, would pass the rodenticide up the food chain, where concentrations increase. The fishers in turn might have become prey for bobcats and mountain lions.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15273\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-4-300x231.jpg\" alt=\"\" width=\"300\" height=\"231\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-4-300x231.jpg 300w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-4-768x591.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-4.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 8pt;color: #0000ff\">Wildlife biologist Greta Wengert (above) carefully handles a suspected neurotoxin found in a Gatorade bottle.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Raids turned up empty bags of AR and sometimes even mounds of the pesticide. To test their hypothesis about bioaccumulation, Thompson, Gabriel and state toxicologists tried to tie the levels of AR exposure in fishers with the locations of grow sites found by law enforcement.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">The researchers analyzed 46 female fishers that died over five years. Their results showed that the animals that lived longest had the least rodenticide in their livers and the fewest grow sites within their home ranges. Conversely, animals with roughly four or more grow sites nearby died the soonest.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">In a 2015 paper in the journal PLoS ONE, the researchers stepped back and examined all the causes of mortality in their collared fishers. Predation accounted for 70 percent of the deaths, disease an additional 16 percent, and poisoning, which until lately hadn\u2019t been considered, 10 percent. The new factor might explain why fishers weren\u2019t rebounding as fast as they might be. Pesticides might be the major factor in most of the deaths, even those not poisoned outright. \u201cYou can argue that the animals that are affected by rodenticide are weaker,\u201d Thompson says, \u201cand that the predation rates on them, as I suspect, are higher.\u201d<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-15269\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/animals-at-risk-504x1024.jpg\" alt=\"\" width=\"440\" height=\"895\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/animals-at-risk-504x1024.jpg 504w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/animals-at-risk-148x300.jpg 148w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/animals-at-risk-768x1562.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/animals-at-risk.jpg 378w\" sizes=\"auto, (max-width: 440px) 100vw, 440px\" \/><\/span><\/p>\n<div class=\"segment\" style=\"text-align: justify\">\n<div class=\"content\">\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><strong>Sounding the Siren<\/strong><\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">In a parallel case, rodenticides have worked their way into some of California\u2019s northern spotted owls, a threatened species. The owls also eat tainted rodents near grow sites. The evidence here is less direct, and depends on analyses of a competing species, the barred owl. For decades, barred owls from Eastern states have been invading the breeding territory of the northern spotted owl in California, Oregon and Washington. Already on the ropes from the logging of old-growth woods, spotted owls were disappearing, and so biologists tried a desperate measure: shooting barred owls.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">At the Hoopa Valley Indian Reservation in Humboldt County, forestry biologist Mark Higley, who has helped with the fisher project, also takes part in the culling of barred owls. Higley says he and his staff have had run-ins with illegal growers, \u201ctaking risks we shouldn\u2019t take.\u201d After Gabriel\u2019s breakthrough with AR and fishers, Higley sent him liver samples of more than 155 barred owls that had been collected at Hoopa. More than half were positive for rodenticide. Gabriel also had positive results from two spotted owls that were hit by cars. Since spotted owls are endangered, Higley and Gabriel use barred owls as a surrogate \u2014 their dietary habits are similar \u2014 and infer that up to half of spotted owls near grow sites might be exposed to rodenticide. Now Thompson is looking for other examples of bioaccumulation. He\u2019s testing mountain lion scat for rat poison and pesticides.<\/span><\/p>\n<\/div>\n<div><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15274\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-5-300x231.jpg\" alt=\"\" width=\"300\" height=\"231\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-5-300x231.jpg 300w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-5-768x591.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-5.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/span><\/div>\n<div><span style=\"font-family: verdana, geneva, sans-serif;font-size: 8pt;color: #0000ff\">Researchers examine a Pacific fisher carcass (left). The animals are struggling in part due to rat poison used by illegal marijuana growers<\/span><\/div>\n<\/div>\n<div style=\"text-align: justify\">\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Only Gabriel, Thompson and a handful of other biologists are investigating the ecological effects of toxins from the trespass grows. The funding opportunities are scant, and the fieldwork is hard and potentially dangerous. Although growers who have been surprised at their plots haven\u2019t hurt anybody \u2014 usually they just run away \u2014 sometimes shots are fired.Adding to the frustration, many important questions are nearly impossible to answer. At what levels do agricultural chemicals and rodenticide interfere with fishers\u2019 reproduction? How much poison does it take to weaken an animal enough that it becomes easy prey for fishers and bobcats? Wildlife toxicology\u2019s pitfall is that lab experiments can\u2019t be performed on wild populations, let alone on sensitive and rare species.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u201cYou have these snippets of field-based evidence,\u201d Gabriel says. \u201cMaybe you could do a liver biopsy on a captive fisher, but it would cause bleeding, and if an anticoagulant were affecting the animal, [the test] could push it over the edge. I\u2019ll leave that work to someone else.\u201d His role, as he sees it, is sounding the siren. \u201cThe problem is getting worse,\u201d he says, frustrated. \u201cWho\u2019s documenting this?\u201d<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><strong>The Unseen Grower<\/strong><\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Amid the lilac shrubs, pungent with pollen, marks of the Rattlesnake Grow aren\u2019t immediately obvious. Soon the paths and waterlines of the growers can be spotted, and then other items like fertilizer bags, heavy-duty plant shears and matted clothing, which the wilderness is swallowing up.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">As Gabriel investigates a stream angling toward the ravine, the four techs split into pairs. Two young field biologists push off in opposite directions, using their GPS trackers to measure plot boundaries.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">The slanting plot, still faintly pocked with bare spots where the marijuana grew, is about 50 yards wide and 100 yards long. They crisscross the area with cans of spray paint, tagging empty bags of chemicals as they count them. When they take a break, they huddle in the shade thrown by the charred trees.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Walking on a diagonal line across the site, the biologists collect at least five samples of soil in plastic bags. The samples will be tested for various pesticides. Five samples for 1,500 square yards might not seem like much. \u201cThat\u2019s all we can get funded for,\u201d says Gabriel, who has rejoined the others. He reports spotting boot tracks. \u201cI think they came back and took the tent and sleeping bags, probably sometime last spring.\u201d<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15275\" src=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-6-300x231.jpg\" alt=\"\" width=\"300\" height=\"231\" srcset=\"https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-6-300x231.jpg 300w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-6-768x591.jpg 768w, https:\/\/drugprevent.org.uk\/ppp\/wp-content\/uploads\/2019\/03\/high-consequences-6.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 8pt;color: #0000ff\">Growers often squat in primitive camps on public lands, leaving their mess to the Forest Service after harvest time.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Of all the species Gabriel studies, the human animal \u2014 the unseen grower \u2014 is the hardest for him to figure out. \u201cI\u2019ve visited between 100 and 200 grow sites,\u201d he says, leaning against a fallen tree. He wonders, why would growers plant so high up on this ridge with limited water?<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u201cWe saw a different approach last week,\u201d Gabriel says. \u201cJust 60 meters from a paved road they were growing 5,000 plants. Maybe one criminal organization decides, \u2018We\u2019ll go deep in the wilderness,\u2019 and another, \u2018Let\u2019s put it by the road.\u2019 You\u2019re trading easier access for greater risk.\u201d<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">He sees each site as a piece of a larger puzzle. If researchers could better understand the selection process, it might be possible to better handle these trespass grows.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Later, over a beer in his motel room, Gabriel says, \u201cThere\u2019s no way I can do this physically 15 or 20 years from now.\u201d He figures he\u2019s got eight more years, after which he hopes the field will be big enough for him to exit and do something else, leaving others to carry on the research. He\u2019s trying to spur other biologists to study illegal grows too. He wants to track the long-term effects of the chemicals by incorporating specialties like hydrology and soil science.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u201cAs an ecologist, I love working on species of conservation concern,\u201d he says. \u201cI want a stable population of fishers and owls. I want basic research and applied management. Not science just for the sake of science but science as a solution.\u201d<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"breadcrumbs\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u00a0<\/span><\/div>\n<div class=\"article\">\n<div id=\"articlePage1\" class=\"\">\n<div class=\"segment\">\n<div class=\"content\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">\u00a0<\/span><\/div>\n<\/div>\n<div class=\"segment\">\n<div class=\"content\">\n<p><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\"><em>[This article originally appeared in print as &#8220;High Consequences.&#8221;]<\/em><\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"text-align: justify\"><span style=\"font-family: verdana, geneva, sans-serif;font-size: 10pt;color: #0000ff\">Source:\u00a0 http:\/\/discovermagazine.com\/2017\/sept\/high-consequences September 2017<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Illegal pot growers have turned public lands into industrial agricultural sites. And the ecosystem effects are alarming. Research ecologist Mourad Gabriel is one of the few scientists studying illegal grow sites in California\u2019s overrun national forests. On a hot August morning, Mourad Gabriel steps out of his pickup onto the gravel road that winds up [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,89,90,14],"tags":[],"class_list":["post-15181","post","type-post","status-publish","format-standard","hentry","category-cannabis-marijuana","category-environment-drug-politics","category-global-drug-legalisation-efforts","category-social-affairs"],"_links":{"self":[{"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/posts\/15181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/comments?post=15181"}],"version-history":[{"count":0,"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/posts\/15181\/revisions"}],"wp:attachment":[{"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/media?parent=15181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/categories?post=15181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drugprevent.org.uk\/ppp\/wp-json\/wp\/v2\/tags?post=15181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}