Tag: "threats" at biology news

NYC tadpoles fly to Puerto Rico

... The reasons for the decline: loss of habitat, and threats from introduced species such as the mongoose, rat, and the giant marine toad, the last of which competes with the Puerto Rican crested toad for the same resources. The species is now listed as Threatened on the U.S. Endangered Species Act, and as Cri...

Why are lions not as big as elephants?

...es that exist today are particularly vulnerable to threats imposed by humans and have been shown to have higher rates of extinction in the fossil record than smaller species even prior to the evolution of man. Carnivores at the upper limits of body mass would have been heavily reliant on abundant large prey ...

Be afraid, be very afraid, if you learned to

...ntrast, they propose that fear responses to innate threats are automatic and do not require cortical involvement. "Corcoran and Quirk's work raises the question of whether learned fear is more controllable--for example, by higher brain functions--than innate fear," says Fendt....

Molecular link between inflammation and cancer discovered

...velopment, just as a state's response to terrorist threats is swifter than the construction of new infrastruc.... However, in both settings, safeguarding against threats and building structures have certain steps in common and require similar types of workers, or molecu...

Risk of extinction accelerated due to interacting human threats

...), the study found that individually each of these threats caused significant population declines. The study ... These results indicate that multiple interacting threats are capable of causing rapid population extinction, and that all threats should be simultaneously re...

Plant-grazing fish boost resilience of coral reefs facing stress

...tion and overfishing have for some time been major threats to the health of coral-reef ecosystems, but additional environmental stress caused by warming of ocean waters has recently become a key factor in coral-reef stability. The importance of this kind of stress is illustrated by the massive coral-bleachin...

ACS News Service weekly PressPac -- Feb. 7, 2007

...and baggage for explosive, chemical and biological threats at the same time. George R. Farquar and colleagues describe latest tests on the device, which uses a technology called single-particle aerosol mass spectrometry (SPAMS), in an article scheduled for the March 15 issue of the ACS' Analytical Chemistry,...

New weather, old pipes challenge nation's water supply

...e Great Lakes," focused on ways to identify health threats before an outbreak. "Outbreaks of waterborne illness are like the plane crashes of the water industry," Rose said. "They're the big events that get people's attention. But there are other things going on. Beneath the big outbreak, we could have 5 ...

Monochloramine treatment not as effective in protecting drinking water

...eactive, can lead to rapid degradation of chemical threats as well as early detection of contamination. As it reacts with a contaminant, chlorine levels in the water drop. Many municipalities use chlorine levels as indicators of possible contamination. Monochloramine also requires more time to kill micro...

20 of world's 162 grouper species threatened with extinction

...ovides scientists with baseline data for analyzing threats to ocean species. This assessment forms part of a growing focus on over-fishing and conservation concerns for fishes in general, said GMSA Director Kent Carpenter. The workshop identified the need to better protect outer reef areas and to manage ...

Are all male's liars and cheaters? Yes -- if they're crayfish!

Intimidation and threats are common throughout society, whether its in the school playground, sporting arena or boardroom. Threatening behaviour is equally widespread among non-human animals. Individuals signal their superior strength to competitors to obtain food, resolve...

Elephant highways of death

...ent and protection of elephants at a time when the threats they face are increasing dramatically. Without focused and timely assistance of elephant specific programs like the African Elephant Conservation Fund, projects critical for the conservation of this species would simply not be possible said Dr. Blak...

UC Davis wins new national center for avian flu research

...r to tackle one of the mostimportant public health threats of our time," said Boyce. The Wildlife Health Center is a program of the UC Davis School ofVeterinary Medicine. UC Davis is one of the world's top veterinarymedical schools and a leader in the study of diseases transmittedfrom animals to people, ca...

Massive coral death attributed to earthquake

...y on a scale rarely observed. In contrast to other threats like coral bleaching, none of the corals uplifted ...attribute damage on this scale to more common reef threats in Indonesia such as cyanide fishing or bleaching. People monitoring Indonesian corals reefs now hav...

Massive coral death atrributed to earthquake

...y on a scale rarely observed. In contrast to other threats like coral bleaching, none of the corals uplifted ...attribute damage on this scale to more common reef threats in Indonesia such as cyanide fishing or bleaching. People monitoring Indonesian corals reefs now hav...

Cancer tip -- Nanoparticles can damage DNA, increase cancer risk

...icles is focused on health and safety risks, or on threats to the environment," Pacheco said. "I am concerned because so many new nanoparticles are being developed and there is little regulation on their manufacture, use and disposal." Pacheco and her colleagues looked at how two different types of nanopar...

How much nitrogen is too much for corn?

...ess levels of nitrogen in nature also pose serious threats to environment. Agricultural application of nitrogen has been linked to rising nitrate levels and subsequent death of fish in the Gulf of Mexico and North Carolinas Neuse River. "Although offsite nitrogen contamination of ground and surface waters...

Turtles are loyal in feeding as well as in breeding

...igate these 'hotspots' further. One of the major threats to marine turtles globally is fisheries bycatch. Hundreds of thousands of marine turtles die each year as a result of fisheries interactions. Identifying and protecting key habitats is critical for the future of these endangered species....

Amphibians in losing race with environmental change

...t in a different way, it's not just that there are threats and pressures amphibians have to deal with," Blaus...bian populations when a novel threat arises, other threats may be too intense and too new for amphibians to cope with them," the researchers wrote in their rep...

Alien plants attack using 'resource conservation' as weapon, researchers say

One of the most serious and least understood threats to the world's ecosystems is the problem of invasive species-exotic plants, animals and other organisms that are brought into habitats and subsequently spread at a rapid rate, often replacing native species and reducing biodiversity. Invaders thriv...

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(Date:10/30/2014)... therapeutics present unique challenges when it comes to ... harm. New consensus guidelines for toxicity testing that ... characteristics of these novel biopharmaceuticals are presented in ... from Mary Ann Liebert, Inc. publishers . ... Nucleic Acid Therapeutics website until November 30, ...
(Date:10/29/2014)... oil and gas production are well over recommended levels ... access journal Environmental Health . High levels of ... is the first to be based on community sampling ... be used to supplement official air-quality monitoring programs. , ... not readily flow to the surface. This is because ...
(Date:10/29/2014)... genetic and environmental, have been blamed for increasing ... such as a family history of schizophrenia, are ... Toxoplasma gondii , a parasite transmitted by soil, ... with skepticism. , A new study by Gary ... the University of Pennsylvania,s School of Veterinary Medicine, ...
Breaking Biology News(10 mins):New guidelines for reproductive & developmental toxicity testing of oligonucleotide drugs 2Air quality and unconventional oil and gas sites 2Air quality and unconventional oil and gas sites 3Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3
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