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Tag: "threats" at biology news

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...." Hypoxia is considered one of the most serious threats to marine life and genetic diversity, Wu says. It occurs when excessive amounts of plant nutrients, particularly nitrogen, accumulate in oceans, freshwater lakes and other waterways. These nutrients trigger the growth of huge algae and phytoplankton ...

Overfishing in inland waters reduces biodiversity and threatens health

...and their fish species should be of broad concern, threats to freshwater fisheries and associated biodiversity have received scant attention from conservation groups and the media, according to author J. David Allan of the University of Michigan and his colleagues. Allan and colleagues refer to the relative ...

Overfishing may drive endangered seabird to rely upon lower quality food

...s argue that such a move would be premature. "The threats that have caused marbled murrelets to decline throughout their range have not been remedied," said Beissinger. "Coastal old growth forests will require 50 to100 years of restoration, and prey resources haven't recovered from the sardine fisheries col...

Effective, safe anthrax vaccine can be grown in tobacco plants

...f vaccine for anthrax, one of the top bioterrorism threats facing the United States. The new production method also could help the government and health care providers avoid supply shortages, as one acre of plants can produce 360 million doses in a year. "Anthrax vaccine is very much in need, primarily beca...

Polio vaccination strategies assessed as eradication nears

...cs and complacency as ultimately being the biggest threats to polio eradication, they conclude that choosing an appropriate vaccination strategy to prevent poliovirus re-introduction is an important and unavoidable task. Founded in 1904, The Journal of Infectious Diseases is the premier publication in the W...

Penicillin, amoxicillin: Step aside for strep throat treatment

...uture attacks, providing the boss immunity against threats that once were formidable. The new results are an extension of a report last year in Pediatrics by Pichichero and Casey, who is clinical associate professor of pediatrics at Golisano Children's Hospital at Strong. There they reported the waning effe...

Scientists determine structure of enzyme that disrupts bacterial virulence

...e pathogenicity of bacteria involved in biowarfare threats such as glanders and diseases such as cystic fibrosis. "This study represents a significant advance in understanding how this enzyme can prevent certain bacteria from becoming virulent," explained Dagmar Ringe of the Rosenstiel Basic Medical Scie...

Getting an evolutionary handle on life after reproduction

...history of guppies confronting different predatory threats in Trinidad. Individuals facing different mortality threats should evolve different adaptations in their life histories, such as age at first reproduction, inve...

New NIAID grants strengthen national biodefense and emerging infectious diseases research network

...academic centers that conducts research to counter threats from bioterror agents and emerging infectious diseases. Each institution will receive approximately $10 million per year for the next four years to head a regional research consortium. The RCE network was identified as a national priority in the 2002...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

In the wake of Katrina, the public health threats from infectious diseases in hurricane-devastated a...e American Society for Microbiology. "The greatest threats to the people in the affected areas are going to be from diseases that were already there." Dr. Ber...

Controlling wildlife trade key to preventing health crises, study says

...ed hundreds of billions of dollars globally. "Few threats to global health--including poverty, security issu...d more costly. "The cheapest way to contain these threats would be to minimize contact between species, which would decrease the risk of pathogens jumping fro...

Researchers find how some antibiotics kill bacteria

...ics ineffective against most of the serious health threats that they are being used to manage," he continued. All rifamycins belong to one of two structural classes. The researchers used two clinically important rifamycins ?rifapentin and rifabutin ?that represent each structural class. They obtained sample...

Traditional models underestimate extinction rates

...ance recovery programs for at-risk populations. As threats to endangered species continue to mount, biologists will need ever more robust methods to estimate extinction risk. Unfortunately, field biologists typically can't generate the large, high-quality datasets that led to the precise predictions reported...

A Father’s Day Gift: Free DNA Paternity Testing

... heritage and property of all humankind?" Growing threats to fragile ecosystems Deep sea expeditions are in...d by such research on the deep seabed environment, threats include destruction of habitats, unsustainable collection, alteration of local hydrological and envi...

Clear rules needed to govern deep sea bioprospecting: UNU

... heritage and property of all humankind?" Growing threats to fragile ecosystems Deep sea expeditions are in...d by such research on the deep seabed environment, threats include destruction of habitats, unsustainable collection, alteration of local hydrological and envi...

UF researchers kill resistant bugs one bandage at a time

...These technologies are especially timely given the threats that are facing the American public, such as antibiotic-resistant bugs occurring in hospitals across the world," said Christopher Batich, Ph.D., a UF professor of biomedical engineering and one of the coating's inventors. "This has the potential to b...

Size matters: Preventing large mammal extinction

...unt their biology in combination with the external threats they face. ...

Genomic sequences processed in minutes, rather than weeks

...t possible to more quickly identify and respond to threats or develop biological countermeasures. ScalaBLAST is a product of PNNL's Advanced Computing Technology Laboratory, supporting research projects associated with high-end computing. Development of ScalaBLAST was funded primarily by the Department of E...

Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees

...t relatives A combination of natural and man-made threats is killing gorillas and chimpanzees in Central Afr... the document seeks a multilateral response to the threats to populations of the western lowland gorilla (Gorilla gorilla gorilla) and the central African chim...

Major new UNC-based drinking water study suggests pregnancy fears may be overstated

...orted by the results of a major new study. If such threats exist at all, which is uncertain, they likely are modest, it concludes. The national study, directed by University of North Carolina at Chapel Hill scientists, contrasts with earlier, less detailed work done in Northern California and published in 1...

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