Quantcast

Latest Environment of the Sierra Nevada Stories

A Tree In The Sierra Nevada
2012-08-08 10:29:40

A coniferous view of the link between snowmelt and water supplies in the U.S. West The following is part two in a series on the National Science Foundation's Critical Zone Observatories (CZO). Part one describes the work of the Susquehanna Shale Hills CZO. White fir, ponderosa pine, Jeffrey pine. Sugar pine, incense cedar, red fir: These are conifers of the headwater ecosystems of California's Sierra Nevada. If trees could talk, what tales they might tell of the health of the...

Yosemite's Alpine Chipmunks Threatened By Climate Change
2012-02-20 04:48:40

Global warming has forced alpine chipmunks in Yosemite to higher ground, prompting a startling decline in the species' genetic diversity, according to a new study by researchers at the University of California, Berkeley. The study, appearing Sunday, Feb. 19, in the advance online publication of the journal Nature Climate Change, is one of the first to show a hit to the genetic diversity of a species because of a recent climate-induced change in the animals' geographic range. What's more,...

2011-06-29 12:34:42

The traffic of genes among populations may help living things better adapt to climate change, especially when genes flow among groups most affected by warming, according to a UC Davis study of the Sierra Nevada cutleaved monkeyflower. The results were published online June 27 by the journal Proceedings of the National Academy of Sciences. The findings have implications for conservation strategies, said Sharon Strauss, professor of evolution and ecology at UC Davis and an author of the study....

2009-01-29 18:13:00

Snowpack Levels at 61% of Average; State Water Contractors Urge Long-Term Delta Fix Along With Conservation SACRAMENTO, Calif., Jan. 29 /PRNewswire/ -- The California Department of Water Resources (DWR) released its latest snow survey results today showing Sierra Nevada snowpack levels at just 61 percent of normal, giving public water agencies a dismal outlook on weather conditions. The State Water Contractors member agencies rely heavily on snowpack runoff from the Sierra Nevada Mountains...

2008-06-26 12:02:41

By Alex Breitler, The Record, Stockton, Calif. Jun. 26--Two years of drought have California's water managers scrambling. What if we had 200 years of drought? It's happened, a number of scientists say. And it could happen again. Trees hidden beneath the waters of Sierra Nevada lakes suggest California, and most of the West, experienced "megadroughts" that put our current water crisis in context. These Medieval dry spells -- if two centuries can be considered a "spell" -- dropped...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
Related