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单词 stonefly
例句 stonefly
These are the larval stages of caddis flies, stoneflies, and mayflies. Silent Spring 1962-09-27T00:00:00Z
There would be no large stoneflies, no mayflies, no caddis flies. Silent Spring 1962-09-27T00:00:00Z
Even in the second year after DDT enters a stream, a foraging salmon parr would have trouble finding anything more than an occasional small stonefly. Silent Spring 1962-09-27T00:00:00Z
Crucially, the data show that families that are particularly sensitive to river pollution, like mayflies, stoneflies and caddisflies, are recovering most strongly of all. Invertebrate biodiversity is improving in England's rivers, long-term trends show 2023-10-04T04:00:00Z
Overlooking the orchards is “Indicator Species,” a silvery, 35-foot-tall kinetic sculpture of a Plecoptera nymph, commonly known as a stonefly, sculpted by Ela Lamblin, as a gathering point for communal celebrations. Day trip idea: Explore Vashon Island by e-bike 2023-08-04T04:00:00Z
With that insight, she got permission from King County to seed four creeks with caddisflies, mayflies, stoneflies and other species. To Revive a River, Restore Its Hidden Gut 2022-04-01T04:00:00Z
Experts say they also worry about the giant stonefly, whose presence in streams is a sign of high water quality. American eel, marbled salamander among ‘critters in crisis’ in D.C. region, experts say 2021-10-22T04:00:00Z
To answer the question, he and his colleagues collected stoneflies at five sites, walking up through the forests onto the bald crests of the mountains. When Insects Lost Their Homes, Evolution Clipped Their Wings 2021-08-11T04:00:00Z
Many of these insects—such as stoneflies, which are vanishing along with wild riverbanks—are prime food for salmon and trout. Saving salmon means taking down hydroelectric power dams—and it's not easy 2020-03-05T05:00:00Z
Just a few years ago, it seemed like the scarce yellow sally stonefly had gone locally extinct. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
The closest motion is seen in stoneflies, but their movement is more like paddling than surfing. Watch Bees Surf to Safety on Waves They Create 2019-11-18T05:00:00Z
The stoneflies live in high-elevation, cold-water streams fed by glaciers and perennial snowfields in and around Glacier National Park in Montana, Grand Teton National Park in Wyoming and Native American tribal lands in western Montana. 2 insect species classified as threatened as glaciers melt 2019-11-20T05:00:00Z
It is possible that in some places, even before the forests burned, there were already flightless stoneflies that simply expanded their territory after the fires. When Insects Lost Their Homes, Evolution Clipped Their Wings 2021-08-11T04:00:00Z
The old channels were covered with gravel — an important habitat for the stoneflies and other insects that feed the fish. An Ecosystem’s Lifeblood, Flowing Through Gravel 2016-11-14T05:00:00Z
For the next two decades, every survey there failed to find another of the stonefly, which is only about a half an inch long. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
This subterranean habitat is far more biologically productive than previously thought and is home to microbes and aquatic insects, such as stoneflies, which are critical to a river’s food chain. Yellowstone fish deaths point to huge toll of human activity on rivers 2017-01-05T05:00:00Z
Now an effort to re-establish the bug, also known as the giant stonefly, seeks to add a fresh chapter to the unfolding success story. Researcher hopes ‘T-bone steak’ returns to Arkansas River 2016-08-20T04:00:00Z
Now the researchers are looking deeper into the genetics of the stoneflies to understand what it is that changes as the insects lose the ability to fly. When Insects Lost Their Homes, Evolution Clipped Their Wings 2021-08-11T04:00:00Z
He plucked a camouflaged stonefly from its ridges. River restoration project marks decade, with 3 dams to go 2015-11-12T05:00:00Z
Scientists have described stoneflies as one of the most threatened insect groups, one that has experienced high extinction rates in recent decades. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Abandoned channels, meanwhile, become covered with gravel and are transformed into important habitat for stoneflies and other insects that feed fish. Yellowstone fish deaths point to huge toll of human activity on rivers 2017-01-05T05:00:00Z
Currently, the stonefly is found in just three streams in Glacier National Park. Feds to rule on Glacier Park insect endangerment within year 2015-09-11T04:00:00Z
I slipped on a pair of waders, tied on a stonefly nymph and stepped into the river. Bleisure Bits: Convention diversions in Big Sky, Montana 2015-07-02T04:00:00Z
The animals – called benthic invertebrates – include flatworms, the blind amphipod and the Tahoe stonefly. Lake Tahoe's tiny creatures dying off at dramatic rate: scientist 2015-01-22T05:00:00Z
He collected additional stoneflies and reared the nymphs to adults, so Mr. Mauvisseau could isolate and sequence the DNA sequence of one of the specimens. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Researchers recently looked for the glacier stonefly in six streams that the insect historically occupied. Climate change could mean end for glacier insect 2014-12-06T05:00:00Z
The western glacier stonefly lives only in a few streams at Glacier National Park. Melting of glaciers at famed U.S. park threatens rare water bug 2014-12-04T05:00:00Z
Reaching into the water, he plucks out a couple of rocks, turns them over and points out six types of insect clinging to the underside, including caddisfly larvae and a stonefly. Dam removals: Rivers on the run 2014-07-29T04:00:00Z
Aquatic ecologist LeRoy Poff combed through the haul, dropping the live stoneflies, caddis flies and mayflies into separate bins in a tackle box. Climate adaptation: Survival of the flexible 2013-02-06T18:21:00.187Z
And if stonefly populations eventually show signs of diminishing once more? This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Geological Survey, Bucknell University and the University of Montana reported on the plight of the western glacier stonefly in the journal Freshwater Science. Climate change could mean end for glacier insect 2014-12-06T05:00:00Z
Giersch said the stonefly is representative of an entire, unique ecosystem expected to undergo a dramatic alteration linked to climate change. Melting of glaciers at famed U.S. park threatens rare water bug 2014-12-04T05:00:00Z
The team looked at aquatic insects living in the mountain streams of central Europe -- seven species of caddisfly, a mayfly and a stonefly. Climate Change Will Hit Genetic Diversity 2011-08-21T21:15:00.250Z
As our winter days grow longer and warmer in anticipation of spring, your opportunities to catch winter stoneflies in action this season will soon disappear. Winter stoneflies sure are supercool 2011-02-24T17:15:00.230Z
About 20 minutes into that day’s expedition, Mr. Davy-Bowker captured a living scarce yellow sally stonefly, upending 22 years of presumed local extinction. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Fish and Wildlife Service seeks protections for the western glacier stonefly under the Endangered Species Act. Climate change could mean end for glacier insect 2014-12-06T05:00:00Z
The rediscovery of this stonefly also suggests how the technique might contribute to efforts to save some of the world’s most critically endangered organisms. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Small, isolated populations of stoneflies reside in pristine brooks, where they are vulnerable to pollution and habitat fragmentation. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
In fact, in his treatise on stoneflies, the late Canadian field naturalist H.B. Winter stoneflies sure are supercool 2011-02-24T17:15:00.230Z
Using traditional and eDNA sampling across 12 locations on the River Dee, Mr. Davy-Bowker and his colleagues documented six sites with traces of the scarce yellow sally stonefly, according to findings published last fall. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
Without any new evidence of its survival in the River Dee, the scarce yellow sally stonefly would be declared locally extinct, Mr. Macadam said; it already had vanished from an assortment of European countries. This Tiny Creature Seemed Extinct. DNA Technology Helped Prove It Wasn’t. 2020-02-24T05:00:00Z
So how do these strategies translate, if at all, to aquatic insects, particularly the winter stoneflies? Winter stoneflies sure are supercool 2011-02-24T17:15:00.230Z
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