Spring is coming early in 3/4 of national parks, according to a new study. Awesome? Not so much. As flowers bloom earlier every year, it’s disrupting the link between the wildflowers and the arrival of birds, bees, and butterflies that feed on and pollinate the flowers. In Shenandoah, an earlier spring is giving invasive plants a head start, and they’re displacing native wildflowers, leading to costly management issues.
Before the 1960s almost everything about living openly as a lesbian, gay, bisexual, or transgender (LGBT) person was illegal. New York City laws against homosexual activities were particularly harsh. The Stonewall Uprising on June 28, 1969 is a milestone in the quest for LGBT civil rights and provided momentum for a movement.
Vine Creek Ranch at Death Valley National Park. Steady drought and record summer heat make Death Valley a land of extremes. Towering peaks are frosted with winter snow. Rare rainstorms bring vast fields of wildflowers. Lush oases harbor tiny fish and refuge for wildlife and humans. Despite its morbid name, a great diversity of life survives in Death Valley.
Located 2,600 miles southwest of Hawaii, the National Park of American Samoa is the most remote unit of the National Park System and the U.S. National Park south of the Equator. The Park spreads across three islands, 9,500 acres of tropical rainforest, and 4,000 acres of ocean, including coral reefs. While remote, the islands of American Samoa, true to the meaning of the word Samoa (Islands of Sacred Earth), are welcoming and offer beautiful landscapes and centuries of culture and history.
DOINews: Research Highlight: Vulnerability Assessment for Threatened Bull Trout
Last edited 4/26/2016
Range-wide climate vulnerability assessment for threatened bull trout
Principal Investigator: Jason Dunham, Supervisory Aquatic Ecologist, U.S. Geological Survey
Image Credit: Joel Sartore/National Geographic Stock with Wade Fredenberg
The threatened bull trout (Salvelinus confluentus) depends more on cold water than any other species of salmon or trout in the Northwest. Bull trout can also be sensitive to floods that disturb eggs and fry that incubate in stream gravel nests over the winter. Climate warming is likely to spell trouble for bull trout if it leads to warming of stream temperatures and more rain and flooding during the winter. We also know that bull trout are threatened by existing human land and water uses, as well as non-native trout species that can compete with and sometimes interbreed with them. The challenge in this study is to address these different threats across the vast area where bull trout live in the Northwest, including Oregon, Washington, Idaho, Nevada, and Montana. To this end we are mapping the habitats where bull trout live, and measuring the importance different threats across the species' range in the Northwest. The results of this work will allow us to better understand where different threats are operating to influence bull trout and help to identify appropriate conservation actions to ensure the bull trout can persist in the face of climate change.