Tag: "temperatures" at biology news
NOAA fisheries, Connecticut, New York Sea Grant Programs announce research grants: $3.5 million in sound research to address lobster die-offs
...wding, water quality conditions including elevated temperatures
and changes in salinity, and environmental conditions such as storm events. "The lobster resource in Long Island Sound supports a multi-million dollar bi-state fishery," said Bill Hogarth, Acting Administrator for NOAA's National Marine Fisheries...
Climate change and coral reefs
...g a lethal combination. In 1997-98, unusually warm temperatures
led to widespread coral bleaching and reef degradation worldwide, compounded by the fact that many reefs could not regenerate due to algal blooms created by high nutrient levels. Coral bleaching is predicted to rise as a result of continued global w...
UF scientists say global warming could spread mosquito
...arrying Asian tiger mosquitoes may find the hotter temperatures
to their liking and may show up in places they've ... slowest. "The difference between the low and high temperatures
-- 7 degrees -- matches some estimates of how much global temperatures
will increase in the next 100...
Chemicals in frying pan a potential hazard to environment
...ious products containing fluoropolymers at various temperatures
and found they emitted up to 10 per cent of TFA. They also discovered the average annual global production of fluorinated polymers was 40,000 tonnes in 1988, a figure that had increased by more than 200 per cent in 1997. While research has not uncov...
Warmer climate linked to earlier frog calling
...ed historical records of the average daily maximum temperatures
from November through June, which are key months f...reproduction. During five of these key months, the temperatures
increased about 2 to 4 F. To determine the earliest calling dates of six frog species in the area, t...
Famous coral reefs damaged due to global warming will take a century to recover, says new research.
...hs of exceptionally warm weather in 1998, when sea temperatures
soared to an average of 32 degrees centigrade for ... Fellow at the University said: "Usually when sea temperatures
rise, the coral usually withers slightly but is able to recover. "But in 1998 global warming caused...
Climate change in the USA
...out in the Rocky Mountains of Colorado. Low summer temperatures
as well as habitat size and quality appear to limit where greenback live in river ecosystems. This talk will look at the question of how climate change will influence habitat recovery plans for endangered species. "Confronting climate change in Cali...
First land plants and fungi changed earth's climate, paving the way for explosive evolution of land animals, new gene study suggests
...next Snowball Earth period failed to occur because temperatures
did not get quite cold enough," Hedges says. "The plants conceivably boosted oxygen levels in the atmosphere high enough for animals to develop skeletons, grow larger, and diversify." Lichens are believed to have been the first fungi to team up wi...
Electronic tags reveal transatlantic migrations and breeding grounds of Atlantic bluefin tuna
...g waters when feeding (37 F or 2.8 C) to very warm temperatures
when breeding (86 F or 29.5 C). The Atlantic bluefin is one of only a handful of warm-blooded fishes. Block and her colleagues demonstrated that bluefin maintain a high internal temperature, around 77 F to 80 F (25 C to 26 C) even when swimming in t...
PNNL captures first bird's-eye view of Puget Sound air pollution
...mmer months due to the increased sunlight and warm temperatures
needed for its formation. The study's timing also enables the team to coordinate with a simultaneous Canadian air quality study of particulates and ozone in the Vancouver, British Columbia, area called Pacific 2001. In addition, PNNL is working with ...
The genetics behind miniature plants
...re sessile and cannot maintain their internal body temperatures
during ambient temperature changes. Thus, plants have evolved complex genetic pathways to maintain normal growth patterns during temperature changes. Scientists from the Whitehead Institute have discovered a new mechanism of plant growth homeostasis....
URI oceanographers link warmer water temperatures and the decline of winter flounder
...lein-MacPhee tested the direct link between warmer temperatures
and the growth and survival of winter flounder lar...ouncil, found that the cumulative impact of warmer temperatures
on the early life history of winter flounder from hatching through the late larval stage resulted in...
Study by Boston College chemistry team shows critical role of water in protein function
...leic acid medicinals could be stored at low enough temperatures
(below the glass transition) to inactivate them reversibly and protect them from contaminating enzymatic degradation or oxidation. "Further, understanding the role of the protein surface residues in this glass transition permits proteins such as medi...
Researchers uncover a piece of nature's secret nitrogen formula
... nature can fix nitrogen without the pressures and temperatures
the man-made process demands. Holland originally set out to investigate the fundamental chemistry of iron compounds that have three atoms attached to each iron, but an unexpected chemical reaction shed light on nature's secret nitrogen formula. Sinc...
NASA unveils spectacular suite of new global data products
... area of Earth's vegetation. Measurements of ocean temperatures
and chlorophyll concentrations reveal more detail and variability than previously seen, while MODIS' chlorophyll fluorescence product adds a whole new dimension to studies of the marine biosphere. MODIS' data products are available at spatial resolut...
MIT instrument monitors molten materials
...Wave Viscometer is special because it works at the temperatures
of molten glass and metals. "Its maximum temperature of operation is more than 1,000oC higher than viscometers currently on the market." Another type of viscometer that is patented but not commercially available can also operate at these temperatures...
Forest management may mitigate global warming
...sity. During the last century, the world's average temperatures
have risen by one degree and sea levels have risen by more than six inches as a result of increased amounts of both natural and human-produced greenhouse gases such as carbon dioxide in the atmosphere. Many scientists believe high levels of carbon d...
Canadian researchers find cancer suspect from grilled meat in human milk
...hese processes expose the muscle to extremely high temperatures
for prolonged periods. Grilled meat is the largest source of the chemical, says Josephy. There are many ways to reduce HCA levels in meat. Most involve cooking meat at lower temperatures. Baking, roasting and microwaving of meat processes that prod...
Beware of leap year when predicting climate change, warns researcher
... experts are predicting a sharp increase in global temperatures
in the next 50 to 100 years, so the need for accurate data is more important than ever, he concludes. "The discrepancy between calendar year data and vernal equinox data will continue to grow in the twenty-first century, because the spring equinox w...
Clean water for Nepal is focus of MIT research
...oping a mathematical model to predict SODIS bottle temperatures
in different climates to evaluate temperature disinfection. Standing in her lab at MIT, Charles River water dripping through one potential filter, Murcott recalls meeting a Nepalese child she assumed was about eight. No, she was told, the child was a...
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