Archive for the ‘Science’ Category

The Nature Conservancy: Scientists Find Monkeys Who Know How to Fish

Long-tailed macaques eat mostly fruit — but when resources are scarce, they’ve been known to get creative with their cuisine. When living near humans, they raid gardens and learn to beg for food. Sometimes they even steal food from inside houses.

Now, for the first time, scientists have observed long-tailed macaques fishing with their bare hands.

Nature Conservancy scientist Erik Meijaard and other researchers are the first to scientifically document this rare conduct. In a recent article published in the International Journal of Primatology, Meijaard and his coauthors say that, while conducting field studies in Indonesia, they have repeatedly observed long-tailed macaques catching fish from fast-flowing rivers.

“This is interesting behavior and some of the first observations of primates catching fish,” says Meijaard, the Conservancy’s senior ecologist in Indonesia.

A Very Hungry Monkey?

In the first sighting back in 1998, researchers describe seeing five female macaques sitting alongside the Ketambe River in the Indonesian province of North Sumatra.

The macaques’ eyes scanned the water. After about three minutes, one of the macaques reached into the river. With her bare hands, she pulled out a fish and quickly ate it. Other macaques watched her — and one even tried unsuccessfully to catch a fish herself.

“Clearly it may raise the question of whether there is some sort of learning going on,” says Meijaard. “If perhaps a couple of generations back, one primate caught a fish and it was subsequently copied.”

Researchers documented a similar sighting in 2006 in a separate macaque population in the Lesan Conservation Area, a Nature Conservancy program site in East Kalimantan, Indonesia. There, on two separate occasions, a macaque was observed swiftly grasping a fish out of the shallows before retreating into the forest with the fish still in its mouth.

While the fishing macaque sighting in Lesan coincided with a time of low fruit availability, Meijaard is hesitant to blame the fishing behavior on resource scarcity or draw conclusions about its meaning.

“It might be nothing more than a hungry monkey who is smart enough to extract nutrients from its environment,” he says.

Protecting Indonesia’s Forests

Meijaard is also the Kalimantan coordinator for the USAID-funded Orangutan Conservation Services Program.

But he says that forests — not macaques or orangutans — are the Conservancy’s real focus.

The Conservancy is fighting an ongoing battle to protect the forests around the Lesan Conservation Area. These forests, which harbor a substantial orangutan population, are slated to be destroyed for agriculture and plantations.

The Conservancy is working around the clock to convince local communities and governments to instead consider their long-term economic needs and put the forests into permanent, sustainable management.

“Macaques and orangutans are neat symbols, but they’re not going to convince people here,” Meijaard says. “What we need is data that shows the microeconomic implications of forest conversion.”

“Depending on the decisions made now, the forest could be around forever, or it could be gone forever by next year.”

Tags: , , , , , , , , , , , , , , , , , , , ,

Posted in:

The Nature Conservancy: How to Save 83% of the World’s Coral Reef Species

Just below the water’s surface lies a magical world teeming with life and value. Coral reefs are home to 4,000 fish species and provide the world with goods and services — such as jobs, foods, medicines and storm protection — worth $375 billion annually.

But scientists estimate that 70% of all corals reefs could be lost by 2050 if current rates of destruction continue — from factors ranging from overfishing to climate change.

That’s why The Nature Conservancy is supporting three major policy efforts by island nations around the world to conserve marine diversity — the Micronesia Challenge, the Coral Triangle Initiative and the newly launched Caribbean Challenge, which is being aided by a $20 million Conservancy pledge.

Together, these regions contain 83% of Earth’s coral species, according to James Robertson of the Conservancy’s Center for Global Trends.

“The threats to coral reefs are huge and occur across the globe, so coral conservation has to be at a scale that matches those threats,” explains Lynne Hale, director of the Conservancy’s Global Marine Program.

“The Caribbean Challenge is a perfect example of how the Conservancy is working with governments and people who depend on coral reefs to catalyze bold and immediate conservation action,” says Hale.

Caribbean Nations Launch Challenge

The Caribbean Challenge will accelerate marine conservation in the region — with the aim of protecting 20% of the region’s marine and coastal habitat by 2020.

The Conservancy announced its support for the challenge when it was launched by Caribbean leaders at a U.N.-sponsored conference in Bonn addressing worldwide threats to biodiversity.

The Caribbean Challenge will enable the Conservancy to help participating nations do essential marine conservation work, such as:

  • Create new marine protected areas (MPAs);
  • Hire, equip and train park managers and other staff;
  • Reduce destructive fishing practices;
  • Incorporate protection strategies that mitigate the impacts of climate change; and
  • Establish a sustainable funding source for future marine conservation.

“The Caribbean Challenge is a broad and collaborative effort,” says Rob Weary, the Conservancy’s senior conservation finance and policy advisor for the Caribbean. “By supporting island nations with funding, scientific expertise and training, we can help them achieve their goals.”

It’s an approach that’s already working in two of the world’s most significant coral areas — Micronesia and the Coral Triangle.

Protecting Marine Resources in Micronesia and the Coral Triangle

Launched in 2006, the Micronesia Challenge is a commitment by five governments to conserve 30% of their marine resources and 20% of their terrestrial resources by 2020.

In less than two years, the Micronesia Challenge has already spurred the creation of new protected areas and new legislation for the support and management of such areas. Heralded by the President of Palau and supported by the Conservancy, the Micronesia Challenge is the inspiration and model for the Caribbean Challenge.

The Conservancy is working similarly in Southeast Asia’s Coral Triangle region — where an astounding 76% of the world’s coral species are found.

“The Coral Triangle is the global epicenter of marine biodiversity,” says Rod Salm, the Conservancy’s director of marine conservation in Asia Pacific. “The world’s coral diversity hinges on the health and survival of this area.”

In the Coral Triangle, Salm and other marine scientists are pioneering the identification and protection of resilient coral communities — those that are most likely to survive bleaching and other traumatic events. They are hopeful that this effort will help save corals from the impacts of climate change.

“It’s critical that we begin incorporating principles of climate change resilience to protect corals and all of our marine resources,” says Salm. “The Conservancy is leading the way in helping marine resource managers to do this worldwide.”

Tags: , , , , , , , , , , , , , , ,

Posted in:

The Nature Conservancy: Report: Biofuel Crops are New Invasive Species Threat

Planting biofuel crops on converted forestlands or other ecologically valuable lands has already become a hotly debated practice.

Now, a new report co-authored by Nature Conservancy scientists says that biofuel crops could also become invasive species — and that the risk needs to be evaluated before these crops are planted.

The Global Invasive Species Programme (GISP) and Conservancy scientists have identified all the crops currently being used or considered for biofuel production and ranked them according to the risk they pose of becoming invasive species.

GISP calls on countries to:

  • Carry out risk assessments before they plant biofuel crops,
  • Use low-risk species of crops for biofuels, and
  • Introduce new controls to manage invasive species.

Major Findings of the Report

  • Damage from invasive species costs the world more than $1.4 trillion annually — 5% of the global economy. The United States alone spends $120 billion annually on the control and impacts of more than 800 invasive species infestations.
  • The giant reed (Arundo donax) is a proposed biofuel crop from West Asia which is already invasive in parts of North and Central America. Naturally flammable, it increases the likelihood of wildfires — a threat to both humans and native species in places such as California.
  • The African oil palm is another example of the havoc an invasive species can wreak. Recommended for biodiesel, it has already become invasive in parts of Brazil, turning areas of threatened forest from a rich mix of trees and plant life into a homogenous layer of palm leaves.
  • The UN Convention on Biological Diversity (COP 9) represents the best chance in a decade to take global action against invasive species. The Conservancy and GISP are calling on delegates to recognize the dangers invasive species cause and recommend risk assessments before biofuel crops are planted. The two groups also call on the scientific community to conduct more desperately-needed research into this topic.

The Bottom Line

“Prevention is better than the cure,” says Stas Bugiel, The Nature Conservancy’s senior global invasive species policy advisor, “We need to stop invasions before they occur. The biofuel industry is a relatively new concept so we have a unique opportunity to act early and get ahead of the game — we mustn’t throw that away.”

Tags: , , , , , , , , , ,

Posted in:

Advertisement