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Feb

28

2010
 
 

Halvalla Viagra Apteekki




Land conservation not to blame for Silicon Valley housing prices


Houses made of money Halvalla viagra apteekki, Anyone who’s lived in the San Francisco Bay Area can tell you that housing there is expensive. Viagra in gulf, But land preservation isn’t responsible for the lack of affordable homes, researchers say.


Some have complained that protection of open spaces takes away valuable property that might otherwise have been used to build housing, cheap generic viagra. Low cost viagra, The resulting shortage drives up real estate prices and contributes to suburban sprawl, critics argue.


To test this hypothesis, who has done any ordering of generic viagra, Buy viagra in antwerpen, researchers studied conservation and housing patterns in Silicon Valley, located in the southern Bay Area, Pharmacy in Brooklyn that sell viagra. Can I legally buy viagra online without prescription, They estimated that if the region’s 47,000 hectares of protected land were available for housing, homemade viagra, Comprare viagra, developers could build 51,000 more units, brand viagra canada. Dutch viagra, That’s only 6.5% of Silicon Valley’s current housing stock of 790,000 units, buy viagra in orlando, Viagra kopen, they report in Biological Conservation.


The gain is fairly small because many conserved spaces are steep or wet, limiting the number of houses that can be built, viagra advertising online, Facts on original viagra, the team says. For instance, large protected areas near the Bay would have an estimated density of 2.7 units per hectare, halvalla viagra apteekki. These relatively spacious lots probably would have been priced high anyway, the authors argue. “[I]t would still be a very expensive housing market,” they write. – Roberta Kwok


Image © alexsl, iStockPhoto.com

Source: Denning, C.A., Mcdonald, R.I., & J. Christensen. 2010. Did land protection in Silicon Valley reduce the housing stock. Biological Conservation. DOI: 10.1016/j.biocon.2010.01.025.

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Filed Under Economics and conservation, Socio-political issues | 2 Comments

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Jan

28

2010
 
 

Cheap Viagra Online Legally




Fishing boats offer “fast food” to seabirds


Eat sign Cheap viagra online legally, Fisheries are affecting more than just ocean-dwelling animals, according to a study in Current Biology. Is it easy to buy viagra in mexico, They’re also influencing the foraging movements of seabirds, who are attracted to the fish discarded by trawlers.


To find out how this new food source might change foraging patterns, natural viagra, Herbal viagra GNC, researchers used satellite transmitters to track three dozen trips by two Mediterranean bird species and developed a mathematical model of the birds’ movements. When trawlers were around, viagra online cheap, Viagra best deals, the birds tended to concentrate in certain spots – presumably at the boats. But on weekends and holidays, can i buy viagra in china without a prescription, Viagra no prescription needed, when no trawlers were operating, the birds spread more widely and sometimes took long flights to other areas.


Like a fast-food restaurant that’s always open, generic viagra new zealand, Viagra sold in stores, the boats may offer the birds a quick and predictable food source, says lead author Frederic Bartumeus of the Centre for Advanced Studies of Blanes (CEAB-CSIC), viagra cialis online. Free viagra trial without prescription, In contrast, the areas where birds normally hunt may not always provide a reliable supply of fish, free trial viagra canada, Buy viagra in canada, forcing them to look farther afield.


Bartumeus notes that the extra food appears to improve the breeding success of these species. But eating fishery discards may not always be a good idea for birds, cheap viagra online legally. The boats are throwing away fish that dwell on the bottom of the ocean, viagra shop in riyad, Genesis of viagra, he says, where contaminants can accumulate. – Roberta Kwok

Source: Bartumeus, F. et al. 2010. Fishery discards impact on seabird movement patterns at regional scales. Current Biology. DOI: 10.1016/j.cub.2009.11.073.

Image © GBlakeley, iStockPhoto.com

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Oct

30

2009
 
 

Viagra Without Prescription




Electronic waste is a global problem


Crumpled paper Viagra without prescription, Two articles published this week highlight the growing problem of e-waste, the mountains of electronic garbage that are piling up from discarded computers, cell phones, and other gadgets.


In Science of the Total Environment, researcher Brett Robinson of Lincoln University in New Zealand estimates that the world produces 20-25 million tonnes of e-waste each year. The number of computers in a country increases with GDP, What to do when the viagra kicks in, he notes, suggesting that e-waste will go up as economies grow. The US, Types of viagra availabe in india, Europe, Genesis of viagra, and Australasia are the biggest offenders, but China, Eastern Europe, free viagra without prescription, and Latin America are expected to start catching up over the next decade.


Wealthy countries export much of their e-waste to poor nations, Viagra for sale from thailand, but the total mass is “impossible to quantify,” Robinson writes. Scientists have reported high contaminant concentrations in aquatic animals, buy viagra free shipping, soil, Canada cooper viagra cost, and plants around a major e-waste processing center in Guiyu, China. Some of those contaminants could be exported back to the US and other countries in the form of toys, buy cheap generic viagra online, jewelry, Viagra online free shipping, and food, he says.


Smaller devices and the use of cloud computing, a system by which processing is outsourced to remote servers, viagra online, could help rein in the growth of e-waste, Viagra shop in orlando florida, Robinson writes. He calculates that the global stream of electronic junk currently contains about 820,000 tonnes of copper, 198,000 tonnes of chromium, and 102,000 tonnes of zinc per year, along with numerous other metals and contaminants.


In a Science Policy Forum article, researchers note the dearth of federal e-waste disposal or recycling regulations in the US, viagra without prescription. A bill moving through Congress calls for more e-waste research and a database of environmentally-friendly materials. But a major hurdle is consumer behavior, can i legally buy viagra online?, the authors say. Viagra vain block solution, They urge lawmakers to include funding for research that would determine how to encourage recycling of electronics. – Roberta Kwok

Source: Robinson, B, how to get viagra without prescription. (2009). Viagra music trans, E-waste: An assessment of global production and environmental impacts Science of The Total Environment DOI: 10.1016/j.scitotenv.2009.09.044

Source: Ogunseitan, O., Schoenung, J., Saphores, J., & Shapiro, A. (2009). The Electronics Revolution: From E-Wonderland to E-Wasteland Science, 326 (5953), 670-671 DOI: 10.1126/science.1176929

Image © BartCo, iStockPhoto.com

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Jul

23

2009
 
 

Some Like It Loud



Certain bird species thrive in noisy environments

BullhornThe ruckus of human-generated noise may actually be beneficial for some bird species, scientists report in Current Biology.

The team surveyed bird nests in New Mexico woodlands near natural gas wells, some with loud compressors and some without. As might be expected, they found more bird species nesting in the quiet areas. But two species, black-chinned hummingbirds and house finches, kept more than 90 percent of their nests at the noisy sites.

When the researchers investigated possible causes, they discovered that nests in quiet areas were more likely to be attacked by predators. One predator, the western scrub-jay, was 32 percent less abundant at the noisy sites, they estimated.

Predatory birds might avoid noise because it masks their calls or makes it harder to locate prey, the authors suggest. The results could explain why birds that are well-adapted to city conditions are thriving while other species decline. – Roberta Kwok

Source: Francis, C.D., Ortega, C.P., and A. Cruz. 2009. Noise pollution changes avian communities and species interactions. Current Biology DOI: 10.1016/j.cub.2009.06.052

Image © Jot, iStockPhoto.com

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Jan

26

2008
 
 

Studied to death



Great Apes threatened by the common illnesses of tourists and scientists chimps get colds too... badlyEfforts to counter poaching and habitat loss have often focused on eco-tourism and research as sustainable, economically viable alternatives, but a report published in Current Biology suggests they might be just as life-threatening to some of our closest cousins. Post mortem data from chimpanzees Pan troglodytes that died in several respiratory disease outbreaks at the Taï Chimpanzee Research Project, Côte d’Ivoire, revealed the presence of two human paramyxoviruses – human respiratory syncytial virus and human metapneumovirus. Although these viruses rarely trouble healthy adult humans, they are a major cause of mortality among infants in developing countries. The study, carried out by Robert Koch-Institut primatologist Fabian Leendertz and international colleagues, provides the first direct evidence of the widespread transmission of viruses from humans to Great Apes. Molecular analyses suggest the particular viral strains were imported from as far away as Brasil, Asia and North America: such far-flung origins make researchers and eco-tourists the most likely source of infection. Controls must now be put in place to ensure the chimpanzees aren’t destroyed by the action designed to save them. Source: Köndgen S, Kühl H, N’Goran PK, Walsh PD, Schenk S, Ernst N, Biek R, Formenty P, Mätz-Rensing K, Schweiger B, Junglen S, Ellerbrok H, Nitsche A, Briese T, Lipkin WI, Pauli G, Boesch C & Leendertz FH (2008) Pandemic human viruses cause decline of endangered Great Apes. Current Biology DOI: 10.1016/j.cub.2008.01.012 Related story in Conservation magazine: No Easy Way Out Image © Peter-John Freeman

Filed Under Community-based conservation, Economics and conservation, Endangered species, Monitoring, Socio-political issues | Leave a Comment

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Apr

5

2007
 
 

Tiny islands, big footprints



Traditional fishing boat -- picturesque but deadlyMost island coral reef fisheries are not sustainable, study warns The ecological footprint of the world’s coral reef fisheries exceeds the available area by a huge margin, according to a study published this week in Current Biology. A group led by Nick Dulvy at the UK’s Centre for Environment, Fisheries and Aquaculture found that more than half of the 49 island countries they assessed were guilty of over-exploiting their reefs: in total, an area some 3.7 times larger than Australia’s Great Barrier Reef would be needed to make up the shortfall. There is a glimmer of hope in the Pacific Ocean, however, where many islands appear to have sustainable coral reef fisheries. But Dulvy and colleagues warn that their data could underestimate the extent of the catch, and that future demand is likely to increase in line with growth in the human population. That’s assuming climate change doesn’t get the reefs first. Source: Newton K, Côté IM, Pilling GM, Jennings S & Dulvy NK (2007) Current and future sustainability of island coral reef fisheries. Current Biology DOI: 10.1016/j.cub.2007.02.054 Image © Sean Randall Related stories in Conservation magazine: Designing Marine Reserve Networks Discarded Fishing Lines Kill Coral Colonies

Filed Under Community-based conservation, Economics and conservation, Marine, Monitoring, Restoration, Socio-political issues | Leave a Comment

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Feb

10

2007
 
 

Big fish save coral



Great Barrier ReefHungry herbivores speed reef recovery after bleaching event Global warming isn’t exactly working in favor of coral reefs, but they’re not without allies, according to a study published this week. Big vegetarian fish, exactly like the ones missing from most over-exploited coastal ecosystems, are an essential part of a reef’s recovery plan. James Cook University marine biologist Terry Hughes and colleagues report this week on an experiment they carried out at the Great Barrier Reef in the aftermath of the 1997—1998 coral bleaching event, which affected 16% of the world’s reefs. Hughes’ team showed that coral recovery depends heavily on algae-grazing fish, which help coral species to re-colonize bleached areas before the seaweed takes over. Source: Hughes, TP, Rodrigues, MJ, Bellwood, DR, Ceccarelli, D, Hoegh-Guldberg, O, McCook, L, Moltschaniwskyj, N, Pratchett, MS, Steneck, RS & Willis, B (2007) Phase shifts, herbivory, and the resilience of coral reefs to climate change. Current Biology DOI: 10.1016/j.cub.2006.12.049

Filed Under Climate change, Marine, Restoration | 2 Comments

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