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Tag: "census" at biology news

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...ve in Northern Ireland have fair skin and the 2001 census revealed that less than one per cent of the population belongs to a black or minority ethnic group” adds co-author Dr Olivia Dolan, consultant dermatologist at the Royal Victoria Hospital. “This means that our results are less likely to be affecte...

Tibetan antelope slowly recovering, WCS says

...g to poachers annually. However, no comprehensive census of chiru has ever taken place due to a sprawling range that spans more than 250,000 square miles. The team also counted more than 1,000 wild yak, a relatively high number for a species that's far more endangered than the chiru, due to hunting and ...

Amur leopard still on the brink of extinction, scientists say

A new census of the world's most endangered cat, the Amur or Fa...Academy of Science, conducted a routine snow-track census of leopard numbers. "The recent census confirmed once again that the Amur leopard survives on ver...

Uganda's mountain gorillas increase in number

The most recent census of mountain gorillas in Uganda’s Bwindi Impenetrab...pulation has increased by 6 percent since the last census in 2002, according to the Uganda Wildlife Authority, the Wildlife Conservation Society, the Max Plan...

Update on census of world's most endangered cat -- Female Amur leopard found dead

...Heilong Program, World Wildlife Fund. “This year’s census showed a desperate situation, with just seven fema...Academy of Science, conducted a routine snow-track census of leopard numbers. World Wildlife Fund led the 2007 census of Amur leopards. WWF says encroachin...

Good times ahead for dinosaur hunters, according to U of Penn scientist's dinosaur census

...f Sciences, Dodson revises his groundbreaking 1990 census on the diversity of discoverable dinosaurs upward ...ithin the next 140 years. In 1990, Dodson first census paper coincided with his publication of The Dinosauria," the first book to comprehensively depict kn...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

...ibution and household sizes were based on the U.S. census for 2000. Predicting the spread of an infectious disease such as smallpox requires much more than simply connecting dots on a map. Instead Longini and colleagues rely on a tool called stochastic modeling to take into account real-world unpredictabi...

Study finds the air rich with bacteria

...ypes of bacteria, according to a first-of-its-kind census of airborne microbes recently conducted by scienti...grounds," says Andersen. An airborne bacterial census will also enable scientists to track how climate change impacts the microbial composition of the atm...

History-hunting geneticists can still follow familiar trail

... conservation perspective, when scientists look at census counts of animals and how the population size may be increasing or decreasing, the study of mtDNA tells us about the level of genetic diversity in a population, which is important in making conservation decisions on endangered species," Mulligan said...

Elephants, large mammals recover from poaching in Africa's oldest national park

A recent wildlife census conducted in Virunga National Park in the Democrat...Site at great personal risk. "The results of the census are encouraging, and proof that protecting the park's wildlife can be done in the most turbulent con...

Value of services performed by insects tops $57 billion in US

...sent. For wildlife nutrition, the researchers used census data on how much is spent annually on observing or hunting wildlife, and what proportion of the animals in those categories depend on insects for nutrition. For pest control, they looked at the amount of damage now incurred by pests, and, knowing tha...

Avian flu modeled on supercomputer, explores vaccine and isolation options for thwarting a pandemic

...on models a synthetic population that matches U.S. census demographics and worker mobility data by randomly assigning the simulated individuals to households, workplaces, schools, and the like. Department of Transportation travel data is used to model long-distance trips during the course of the simulation,...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

...nd serves as a demonstration of how to undertake a census in a large marine ecosystem. Interesting facts derived from the Gulf of Maine Register of Marine Species Marine species in the Gulf of Maine range from miniscule, like the diatoms, to gigantic, the largest being the blue whale. The smallest specie...

Free HIV tests cheaper than charging when goal is preventing AIDS

...received funding to continue the free testing, the census rebounded to about 15 to 18 people testing per day. "It's amazing to me that the numbers are so high. The demand is there ?people want to know if they are infected," said senior study author John Crump, M.D., a Duke assistant professor of medicine ...

Predators keep the world green, ecologists find

... "The Science article reported on the first plant census we did, involving 15,000 plants, but it only gave us a snapshot in time," Terborgh said in an interview. "We could see that there were huge differences between the little islands that didn't have any predators on them, and larger islands that did hav...

New maps reveal true extent of human footprint on Earth

...Amato Evan, a SAGE researcher who merged available census and satellite data to create visuals reflecting the reach of pasture and croplands worldwide. Chad Monfreda, a graduate student at SAGE, is similarly mapping the location, range and yields of over 150 individual crops reared around the planet. The e...

Preventing a pandemic: Study suggests strategies for containing a flu outbreak

... his colleagues based their model on the Thai 2000 census and a previous study of the social networks in the Nang Rong District in rural Thailand. With this information, they simulated a population of 500,000 in which individuals mixed in a variety of settings, including households, household clusters, pre...

Discarded placentas deliver researchers promising cells similar to embryonic stem cells

...tute for Regenerative Medicine. According to U.S. census figures, there are more than 4 million live births each year. For each discarded placenta, the researchers calculate there are about 300 million amniotic epithelial cells that potentially could be expanded to between 10 and 60 billion cells relativel...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

...atory system of all vascular plants," she says. A census of the rainforest from 2002 to 2004 revealed that devil's gardens grew by 0.7 percent per year. "Using this growth rate, we estimate that the largest devil's garden in our plot, with 351 plants, is 807 years old," the authors conclude. They estimate ...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...each square kilometer of forest. After the burn, a census will be taken of the trees to see how many have survived or how they may be reacting or recovering from the burn; and canopy density will be measured immediately after the fire and at monthly intervals, to monitor the impact of the fire and rate of r...

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