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Tuberculosis risk for travellers (pp 442, 461)
The risk of tuberculosis infection in long-term travellers to countries with high prevalence of the disease is substantial and of similar magnitude to the average risk for the local population, according to research published in this week’s issue of THE LANCET. Little attention has been paid to the potential of international travellers to... view more... (2000-08-02)
Turtle nesting threatened by logging practices in Gabon, Smithsonian warns
Endangered sea turtles are victims of sloppy logging practices in the west central African country Gabon, according to a study led by William Laurance, staff scientist at the Smithsonian Tropical Research Institute. The study will be published online in the journal Oryx later this month. view more (2008-03-17)
Study of Tropical Forests Worldwide Reveals that Nature Encourages Diversity
An analysis of seven tropical forests around the world has found that nature encourages diversity by selecting for less common trees as the trees mature. view more (2006-01-27)
Limpets reveal possible fate of cold-blooded Antarctic animals
A limpet no bigger than a coin could reveal the possible fate of cold-blooded Antarctic marine animals according to new research published this week in The Journal of Experimental Biology. view more (2007-07-24)
Seeing the forest and the trees
With human emissions of carbon dioxide on the rise, there is growing interest in maintaining the Earth's natural mechanisms that absorb and store carbon. view more (2005-10-24)
Marianas on Alert: Melor Joins the Typhoon Group
Being a typhoon seems to be the "in thing" lately for tropical cyclones in the Western Pacific, and Melor is now one of the "in crowd." NASA's QuikScat and Aqua satellites helped the U.S. Navy's Joint Typhoon Warning Center confirm that Melor now has sustained winds near 115 knots. The Marianas Islands have posted watches and... view more... (2009-10-02)
Tropical Storm Parma headed to Vietnam
Tropical Storm Parma crossed over the Hainan Island, China over the weekend and is now poised for a final landfall in Vietnam around 8 p.m. Eastern Daylight Time. view more (2009-10-14)
Tropical Storm Claudette Makes Landfall in Florida, Moving Into Mississippi
By mid-day today, Monday, August 17, Claudette's center had moved into southwestern Alabama and weakened into a tropical depression. She'll turn toward the north-northwest later today and soak Alabama with up to 10 inches of rain in some isolated areas. view more (2009-08-18)
NASA Satellites See Ida Spreading Out Before Landfall
NASA's Aqua and Terra satellites are keeping a close eye on Tropical Storm Ida, and both have instruments aboard that show her clouds and rains are already widespread inland over the U.S. Gulf coast states. view more (2009-11-10)
Typhoon Melor and Tropical Storm Parma mean double trouble in the western Pacific
There's double-trouble in the Western Pacific with one typhoon and one tropical storm bringing soaking rains, dangerous surf and gusty winds to two different locations. Typhoon Melor is affecting the east coast of Japan and watches and warnings are up today. Further south, Tropical Storm Parma continues to rain on Luzon in the northern Philippines. view more (2009-10-08)
Finding Genetic Gold In The Amazon
Brazilian scientists may have found a new source for plastics and life saving medicines by cracking the genetic code of Chromobacterium violaceum, a free-living bacterium that commonly floats along the Rio Negro river in the Amazon rainforest. The complete genome sequence, which will be published in a future issue of the Proceedings of the... view more... (2003-09-12)
Killer bees may increase food supplies for native bees
Aggressive African bees were accidentally released in Brazil in 1957. As "killer bees" spread northward, David Roubik, staff scientist at the Smithsonian Tropical Research Institute, began a 17-year study that revealed that Africanized bees caused less damage to native bees than changes in the weather and may have increased the... view more... (2009-10-02)
Amazon powers tropical ocean's carbon sink
Nutrients from the Amazon River spread well beyond the continental shelf and drive carbon capture in the deep ocean, according to the authors of a multi-year study. view more (2008-07-22)
Tropical plants go with the flow ... of nitrogen
Tropical plants are able to adapt to environmental change by extracting nitrogen from a variety of sources, according to a new study that appears in the May 7 early online edition of The Proceedings of the National Academy of Sciences. view more (2007-05-08)
No convincing evidence for decline in tropical forests
Claims that tropical forests are declining cannot be backed up by hard evidence, according to new research from the University of Leeds. view more (2008-01-08)
How chilly was the last ice age?
Polar oceans permanently covered with ice, temperatures ten to twelve degrees Celsius lower than today in the North Atlantic region, tropical oceans on the other hand only two degrees Celsius below modern values: Until quite recently these were the general ideas climate researchers had about the climax of the last ice age 20.000 years ago. Now... view more... (1999-05-03)
Old Stain in a New Combination
New combinations of agents based on the oldest synthetic malaria drug, the methylene blue stain, can curb the spread of malaria parasites and make a significant contribution to the long-term eradication called for by the international "Roll Back Malaria Initiative." view more (2009-05-21)
Singing in the rainforest: Public vs. private signaling by a tropical rainforest bird
According to the Chinese proverb, a bird sings because it has a song, not because it has an answer. A team of French and Brazilian researchers, however, may have the answer as to how the song of Brazilian white-browed warbler has become so well-adapted to the acoustic properties of the rainforest environment. view more (2008-02-13)
Local climate influences dengue transmission
Researchers from the US Centers for Disease Control and Prevention (CDC) and the Johns Hopkins Bloomberg School of Public Health have found that dengue transmission in Puerto Rico is dependent upon local climate and short-term changes in temperature and precipitation. view more (2009-02-17)
New Models of Weather Pattern
For a mathematician, Joseph Biello spends a lot of time thinking about the weather. But the UC Davis assistant professor isn't looking out the office window. He is using mathematical theory to build a model of the Madden-Julian Oscillation, a tropical weather pattern that influences drought and rainfall in the western U.S. view more (2005-12-12)
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