Tag: "census" at biology news

Reduced fish stocks linked to increased bushmeat trade, wildlife declines in W. Africa

...ofessor at UC, Berkeley). Using 30 years worth of census data collected monthly by rangers in six nature reserves in Ghana, the researchers have found a direct link between fish supply and the demand for bushmeat in Ghanaian villages. Bushmeat is any wild species taken from public land and sold for consum...

New study links low fish supply to increased bushmeat hunting

...nservation Society in New York. He compiled census data recorded by park rangers from 1970 to 1998 for 41 species of larger mammals at six savanna nature reserves in Ghana. These animals included buffalo, antelope, jackals, lions, elephants, monkeys and baboons. The information was compared with the ...

Census of Marine Life - Discoveries and Highlights 2004: Scientists add 4m+ records, 13,000 species

... Census grows to 13 projects Creating a census of many trillions of moving organisms belonging to millions of diverse species in the three-dimensional oceans of the world is a scientific challenge seldom equaled. Launched in 2000 and running through 2010, the US $1 billion Census embraces resear...

Population of rare gorillas may be increasing in war-torn Congo

...en be increasing in numbers, according to a recent census by the Bronx Zoo-based Wildlife Conservation Socie...couragingly, a number of the groups had infants. A census under difficult conditions in 2000 estimated 120 to 130 animals in the same area. Preliminary surve...

Photos show jaguar vamping for camera

...tion Society (WCS) are using the remote cameras to census the park, which may contain more jaguars than any protected area in Latin America. Normally the cameras, which are tripped by an infrared beam, capture little more than a fleeting glimpse of wildlife. No one knows why this particular jaguar spent so...

Webcast: Does ending collection of data make the problem go away?

...n about people's race and ethnicity. The 2000 U.S. census provided Americans for the first time with an opportunity to check multiple race/ethnicity categories. What do all three situations have in common? They potentially impact the kind of data available to monitor health disparities. In the final symposi...

AAAS CEO Alan I. Leshner urges US to continue collecting job data on women workers

...ish information on women's employment derived from census surveys of households. But critics have complained that the monthly surveys of employers' payrolls provide different information, and that the data from those surveys offer a more complete and accurate picture. May 18 was the deadline for public co...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...he 2004 Mushara experiment was to develop a remote census technique using geophone arrays to count elephants...ntral Africa, where it's hard to conduct an aerial census because of the dense forest canopy." Human-generated noise is another concern for conservationists. ...

Researchers determine temperature-driven rootworm forecast

...umber of adult beetles there," he said. A field census of beetles represents about one-fourth of what isactually there, Harris said. "If the number is significant enough, we institute management. It letsus orient in time to make management decisions," he said. "When weincorporate this to overall manag...

Maryland's poor, African-American communities suffer disproportionate cancer risk from air pollution

...c Health. Their study revealed that among Maryland census tracts, the poorer the community and the higher th... pollutants. Apelberg and his coauthors found that census tracts in the lowest quartile of median household income were 15- to 100-fold more likely to be at h...

Vietnam war technology could aid elephant conservation

...me consuming and error-prone technique - or aerial census techniques, which although they are useful to estimate elephant numbers in open savanna cannot be used to spot elephants in dense forest. As a result, the new technique could provide crucial data for reserve planning and management. "Conservation man...

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...

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

...itute 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...

America's public forests landlocked by sea of development

...of Wisconsin-Madison. Radeloff analyzed government census data on housing increases in and near all U.S. nat...'t want growth to occur." When the 2010 government census data becomes available, Radeloff plans to repeat his analysis, providing updated housing growth info...

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

...latory 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 ...

Say what? Bacterial conversation stoppers

... the cell's presence. Nearby bacteria take a local census by monitoring AI-2 levels and conduct themselves as the circumstances warrant. Researchers have speculated that AI-2 is a universal language, and the new study from Bassler's lab is the first to show those conversations taking place and producing co...

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 ex...

3,317 and counting (the number of marine species in the Gulf of Maine)

...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 species...

Manomet Conservation Center awarded major grant to Foster

...s International; Conducted the first simultaneous census of red knots along 1,000 miles of the Argentine coast. This research helped identify priority sites for conservation action; Partnered with Birdlife International to create a powerful assessment tool in evaluating site-specific environmental, social...

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