How Oil & Gas Drilling Impacts the Endangered Greater Sage Grouse and Lesser Prairie-Chicken
By Ted Auch
The New York Times' Diane Cardwell and Clifford Krauss recently published a piece on the interaction between the Greater Sage Grouse (GSG, Centrocercus urophasianus) and fracking in Big Sky country. We thought it might be helpful to dig a little deeper into the issue given the sensitivity of this species' as well as the Lesser Prairie-Chicken (Tympanuchus pallidicinctus) to habitat disturbance and the inevitable conflict between “energy independence" and the Endangered Species Act—the purpose of which “is to protect and recover imperiled species and the ecosystems upon which they depend."
Gunnison Sage Grouse
We looked at the GSG's range relative to hydrocarbon wells in Colorado and Wyoming keeping in mind the bird's range encompasses 11 states and “more than 165 million resource-rich acres." This analysis encompasses much of the bird's range accounting for 52 percent (134,149 square miles) of the aforementioned acreage (Figures 1 and 2) and 37 and 373 GSG habitat parcels in Wyoming and Colorado, respectively.
The largest shaded areas on the map are the bird's “Current Distribution" (67,879 square miles) in Wyoming and “Historic Habitat" in Colorado (24,505 square miles). GSG's range in Colorado is far more spread out than in Wyoming with discrete north- and southwest concentrations. Important Birding Areas (IBAs) as defined by the Audubon Society often overlap with oil and gas extraction sites as well as endangered species habitat. Thanks to the Audubon Society's Connie Sanchez and Tom Auer we were able to determine how many hydrocarbon production wells exist within these states' IBA parcels. Wyoming is home to 39 IBAs, while Colorado contains 53 of these designated parcels. The average Wyoming IBA is 257 square miles, however, while Colorado's average 59 mi2. In total these two states are home to 13,154 mi2worth of IBAs. These figures account for 3.7 percent of U.S. IBAs and 2.2 percent of IBA acreage.
1. Wyoming: 51 unconventional hydrocarbon wells in IBAs, 2,238 in primary GSG habitat, and for some perspective 1,983 of the latter are in what EIA has designated primary shale plays. At the present time 97 percent of Wyoming's production wells lie within some segment of the GSG's habitat.
2. Colorado: 163 unconventional hydrocarbon wells in IBAs
- Southwest: 7,838 wells in primary GSG habitat
- Northwest: 16,609 wells in primary GSG habitat
- EIA Shale Plays: 24,178 wells
- 53 percent of Colorado's production wells lie within some segment of the state's GSG habitat.
In Colorado, the GSG's historical habitat has already been overrun by hydrocarbon wells with 20,809 across the bird's north- and southwest range. The bird's production/brooding area in the northwest contains 1,142 wells while its winter range contains 662 wells.
Figure 2. Wyoming hydrocarbon production laterals and Greater Sage Grouse Habitat.
Table 2. Colorado hydrocarbon production wells in various sectors of the Greater Sage Grouse's range.
Another way to look at the interaction between hydrocarbon production and GSG in the Great Plains and Pacific Northwest is to investigate the density of wells in the bird's historic range. That is precisely what we did for the 16 states where GSG once roamed. The bird's historic range is 2.21 times the size of its current range, while the acreage we analyzed is slightly more than the often-reported “165 million resource-rich acres" (Cardwell and Krauss, 2014). On average each of the 16 states was home to 35,580 square miles of GSG habitat and are now home to a mere 28 percent of that figure.
While GSG habitat in these states has decreased, hydrocarbon production has skyrocketed. There are currently 153,358 hydrocarbon wells across the 16 states and an average of 12,780 wells per state—excluding the four states devoid of wells in GSG habitat. These wells and associated infrastructure occupy approximately 39,649 square miles which is a disturbing 7 percent of the species' historic range and nearly 15 percent of its current range. From an historic GSG range perspective, Kansas has the highest density of wells with 3.5 per square mile of habitat. Unsurprisingly North Dakota, has the highest density of wells in the bird's current range, with 6.1 wells per square mile of habitat. Colorado was second in both departments with 1.1 and 2.9 wells per square mile of historic and current GSG habitat, respectively.
The Lesser Prairie-Chicken (LPC)—along with GSG—is hardly what anyone would call charismatic mega-fauna but it's habitat is coming under pressure in the name of drill baby drill “energy independence" across many of the same Great Plains states. The Prairie-Chicken's range once spread across 97,977 square miles in five states with 43 percent of that acreage in Kansas alone. The bird's range has declined by 68 percent and as much as 78-79 percent in Colorado and New Mexico. In terms of US hydrocarbon production the Prairie-Chicken's historic range is home to 58,152 wells, while its current extent contains 22,049 wells.
On average the four states we investigated sans Texas contain 14,538 and 5,512 wells in this bird's historic and current range, respectively, with the largest values for both not surprisingly in the state that contains most of the bird's primary grassland habitat Kansas's southwest corner. Across these states the density of wells in Prairie-Chicken habitat is 0.603-0.682 hydrocarbon wells per square mile with as many as 1.06-1.25 wells per square mile of Prairie-Chicken habitat in New Mexico. These wells and related infrastructure have an approximate footprint of 22,378 square miles, which is 23 percent the LPC's historic range and 72 percent of its current range.
The five states that contain LPC habitat are also home to 2,978 square miles worth of IBAs across ten parcels averaging 596 square miles, with Kansas home to the most IBA acreage (1,793,845 acres) and New Mexico the most parcels (4 parcels). These values equate to 0.40 percent of US IBAs and 0.99 percent of IBA acreage.
What this analysis means for the GSG and LPC is hard to discern. It stands to reason, however, that their already sensitive mating behavior and plummeting/disconnected populations have not seen the last of energy independence's encroachment. In contrast to the well-noted battle in the Pacific Northwest between environmentalists, loggers, developers and cattle grazers over the much smaller range of the Spotted Owl—and the US Fish and Wildlife Service's “"God Committee"—the GSG's range includes much of the U.S.'s primary wind and mineral resource acreage. GSG's habitat requirements overlap with US shale resources in a significant way with 29 percent of its range in shale basins and 11 percent in currently active shale plays. For a more detailed legal perspective on this issue the reader is referred to our friends at the Center for Biological Diversity and their long-term commitment to protecting and increasing suitable GSG habitat.
Meanwhile the historic and current range of the LPC is like the Spotted Owl in that it is quite small amounting to 97,978 and 31,237 square miles, respectively, which is approximately 11-17 percent of the GSG's range. Similar to GSG we found that 31 percent of LPC's historic range lies within shale basins while only percentage of its habitat is within currently active shale gas plays.
Table 3. Historic and Current Range of Greater Sage Grouse along with the number of producing hydrocarbon wells in that range by state.
Table 4. Historic and Current Range of Lesser Prairie-Chicken along with the number of producing hydrocarbon wells in that range by state (Note: Texas well location data is not available at the present time).
Table 5. Square mileage and number of Important Birding Areas (IBAs) in the Lesser Prairie-Chicken's historic range.
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Since even moderate-intensity workouts offer a slew of benefits, walking is a good choice for people looking to stay healthy.
How to Rock Your Walk<p>Walking isn't just fun and healthy. It's accessible.</p><p>"Walking is cheap," says Dr. John Paul H. Rue, a sports medicine doctor at <a href="https://mdmercy.com/" target="_blank">Mercy Medical Center in Baltimore</a>. "You can do it anywhere at any time; [it] requires little to no special equipment and has many of the same cardio benefits as running or other more intense workouts."</p><p>Want to up your walking game? Try the tips below.</p>
Use Hand Weights<p>Cardio and strength training can go hand-in-hand when you add weights to your walk.</p><p>A <a href="https://journals.lww.com/acsm-msse/Fulltext/2019/03000/Associations_of_Resistance_Exercise_with.14.aspx" target="_blank">2019 study</a> found that weight training is good for your heart, and <a href="https://www.mayoclinicproceedings.org/article/S0025-6196(17)30167-2/abstract" target="_blank">research</a> shows it reduces the risk of developing a <a href="https://www.healthline.com/health/nutrition-metabolism-disorders" target="_blank">metabolic disorder</a> by 17 percent. People with metabolic disorders have a higher chance of being diagnosed with high cholesterol, high blood pressure, and diabetes.</p><p>Rue suggests not carrying weights for your entire walk.</p><p>"Hand weights can give you an added level of energy burning, but you have to be careful with these because carrying [them] over a long period of time or while walking could actually lead to some overuse injuries," he says.</p>
Make It a Circuit<p>As another option, consider doing a circuit. First, put a pair of dumbbells on your lawn or somewhere in your home. Walk around the block once, then stop and do some bicep curls and tricep lifts before walking around the block again.</p><p>Rue recommends <a href="https://www.healthline.com/health/exercise-fitness/running-with-weights" target="_blank">avoiding ankle weights</a> during cardio workouts, as they force you to use your quadriceps rather than hamstrings. They can also cause muscle imbalance, according to the <a href="https://www.health.harvard.edu/staying-healthy/wearable-weights-how-they-can-help-or-hurt" target="_blank">Harvard Health Letter</a>.</p>
Find a Fitness Trail<p>Strength training isn't limited to weights. You can get stronger by <a href="https://www.healthline.com/health/bodyweight-workout" target="_blank">simply using your body</a>.</p><p>Often found at parks, fitness trails are obstacle courses with equipment for pullups, pushups, rowing, and stretches to build upper and lower body strength.</p><p>Try searching "fitness trails near me" online, checking out your local parks and recreation website, or calling the municipal office to <a href="https://calisthenics-parks.com/" target="_blank">find one</a>.</p>
Recruit a Friend<p>People who workout together stay healthy together.</p><p><a href="https://bmcgeriatr.biomedcentral.com/articles/10.1186/s12877-017-0584-3" target="_blank">One study</a> showed that older adults who exercised with a group improved or maintained their functional health and enjoyed their lives more.</p><p>Enlist the help of a walking buddy with a regimen you aspire to have. If you don't know anyone in your area, apps like <a href="https://www.strava.com/" target="_blank">Strava</a> have social networking features so you can get support from fellow exercisers.</p>
Try Meditation<p>According to the <a href="https://www.nccih.nih.gov/research/statistics/nhis/2017" target="_blank">2017 National Health Interview Survey</a>, published by the National Institutes of Health, meditation is on the rise, and for good reason.</p><p>Researchers <a href="https://pubmed.ncbi.nlm.nih.gov/29616846/" target="_blank">found</a> that mind-body relaxation practices can regulate inflammation, <a href="https://www.healthline.com/health/biological-rhythms" target="_blank">circadian rhythms</a>, and <a href="https://www.healthline.com/health/glucose" target="_blank">glucose</a> metabolism, as well as lower <a href="https://www.healthline.com/health/high-blood-pressure-hypertension" target="_blank">blood pressure</a>.</p><p>"Any form of exercise can be turned into a meditation of some type, either by the surroundings you are walking in, like a park or trail, or by blocking out the outside world with music on your headphones," Rue says.</p><p>You can also play a podcast or download an app like <a href="https://www.headspace.com/headspace-meditation-app" target="_blank">Headspace</a> that has a library of guided meditations to practice while you walk.</p>
Do Fartlek Walks<p>Typically used in running, fartlek intervals alternate periods of increased and decreased speed. These are <a href="https://www.healthline.com/nutrition/benefits-of-hiit" target="_blank">high-intensity interval training (HIIT)</a> workouts, which allow exercisers to accomplish more in less time.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0154075" target="_blank">One study</a> showed that 10-minute interval training improved <a href="https://www.healthline.com/health/metabolic-syndrome" target="_blank">cardiometabolic</a> health, or lowered the risk of heart disease, stroke, and diabetes, just as well as working out at a continuous pace for 50 minutes.</p><p><a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0111489" target="_blank">Research</a> also shows that HIIT workouts increase muscle <a href="https://www.healthline.com/health/fast-twitch-muscles" target="_blank">oxidative</a> capacity, or the ability to use oxygen. To do a fartlek walk, try walking at an increased pace for 3 minutes, slow down for 2 minutes, and repeat.</p>
Gradually Increase Pace<p>A faster walking pace is associated with a lower risk of <a href="https://www.healthline.com/health/copd" target="_blank">chronic obstructive pulmonary disease (COPD)</a> and respiratory diseases, according to a <a href="https://pubmed.ncbi.nlm.nih.gov/30303933/" target="_blank">2019 study</a>.</p><p>Still, it's best not to go from a stroll to an Olympic-worthy power walk in a day. Instead, increase your pace gradually to prevent injury.</p><p>"Start by walking at a brisk pace for about 10 minutes per day, 3 to 5 days per week," Rue says. "Once you've done this for a few weeks, increase your time by 5 to 10 minutes per day until you get to 30 minutes."</p>
Add Stairs<p>You've likely heard that taking the stairs instead of an elevator is a way to add more movement into your daily routine. It's also a way to step up your walking. Stair climbing has been shown to <a href="https://www.sciencedirect.com/science/article/pii/S2211335519301123?via%3Dihub" target="_blank">decrease the risk of mortality</a> and can easily add a bit more challenge to your walk.</p><p>If you don't have stairs in your home, you can often find them outside a local municipal building, train station, or at a high school stadium.</p>
Is Your Walk a True Cardio Workout?<p>Not all walks are equal. A walk that's too leisurely may not provide enough burn to qualify as cardio. To see if you're getting a good workout, try to <a href="https://www.healthline.com/health/how-to-check-heart-rate" target="_blank">measure your heart rate</a> using a monitor.</p><p>"A target goal for a good walking workout heart rate is about 50 to 70 percent of your maximum heart rate," Rue says, adding that maximum heart rate is <a href="https://www.healthline.com/health/fitness-exercise/fat-burning-heart-rate" target="_blank">typically calculated</a> by 220 beats per minute minus your age.</p><p>You can also monitor how easily you can carry on a conversation while you walk to gauge your heart rate.</p><p>"If you can walk and carry on a normal conversation, that's probably a lower intensity walk," says Rue. "If you are slightly breathless but can still have a conversation, that's probably a moderate workout. If you are out of breath and can't talk normally, that's a vigorous workout."</p>
Takeaway<p>By shaking up your routine, you can add excitement to your workout and reap even more rewards than a basic walk provides. Increasing the pace and intensity of a workout will make it more effective.</p><p>Simply pick your favorite variation to add some spice to your next walk.</p>
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