Rising Waters & Wildlife Safety

Are there any conservation efforts focused on animal species endemic to islands likely to be submerged by rising sea levels? — H. Wyeth, Anahola, HI

Islands are indeed likely to be the areas hardest hit by our warming climate. The Intergovernmental Panel on Climate Change (IPCC), a group of leading climate scientists from around the world convened by the United Nations to assess the ongoing risk of global warming, predicts a global average sea level rise of between 3.5 and 34.6 inches over the next century. And the Alliance of Small Island States (AOSIS), a coalition of 42 small island and low-lying coastal countries that have banded together to lobby United Nations policymakers, reports that warming-induced sea level rises could threaten the very existence of some island nations including the Maldives, Kiribati and parts of the Bahamas.

Those low-lying nations that do manage to hang onto some land will contend with not only continuously rising seas and stronger more frequent storms, but also declines in the productivity of their agriculture and fisheries. Salt water intrusion will limit the amount of freshwater available for crops and in some cases undermine the integrity of the soil itself. And as coral reefs die off, the abundant marine life that once congregated around them will disappear.

As for wildlife, its unclear just how much certain endemic species will be affected by rising sea levels and other environmental hazards exacerbated by global warming. Clearly the biggest threat is habitat loss: Land forms that once sustained certain animals may no longer be above water or otherwise suitable for some species. Those fortunate enough to be on big continents may be able to move away from shore to neighboring areas that can provide the resources needed for survival. But animals on islands may be hard pressed to find places better to go to where they can keep on keeping on.

The IPCC lists a few examples among thousands of endemic island dwellers facing likely extinction unless we can get a handle on greenhouse gas emissions in short order: the Tuamotu sandpiper of Tuamotu Island, the Bristle-thighed Curlew of French Polynesia, the Manus fantail of Papua New Guinea, the lorikeet and rail of New Caledonia, the moorhen and Savaii of Samoa, the Santo Mountain starling on Espiritu Santo, penguins in the Galapagos, petrels in Bermuda and seabird colonies from the Kerguelen, Crozet and outer Hawaiian islands, among others. The IPCC adds that endemic flora may fare even worse, which will in turn drive more animal extinctions.

What can be done to stem this rising tide of endemic species loss? According to the IPCC, the establishment of terrestrial, marine or coastal reserves has been found to be a “useful management option.” Results from existing model reserves on islands across the Caribbean (including Dominica, Bonaire, the Grenadines and St. Lucia) have shown promise. Groups including Conservation International, the Wildlife Conservation Society, the Nature Conservancy and others, are working to create more such reserves in other biodiversity hotspots, including many non-threatened islands around the globe.

CONTACTS: IPCC, www.ipcc.ch; AOSIS, www.sidsnet.org/aosis; Conservation International, www.conservation.org; Wildlife Conservation Society, www.wcs.org; Nature Conservancy, www.nature.org.

SEND YOUR ENVIRONMENTAL QUESTIONS TO: EarthTalk, P.O. Box 5098, Westport, CT 06881; earthtalk@emagazine.com.

An Insider’s Guide to Western Australia

Tourism Western Australia and responsibletravel.com are creating an insider’s guide to Western Australia (WA), including the best sustainable tours and places to stay and travel secrets from locals. They are also searching for the best travel tips and photos from anyone who has traveled in Western Australia to be part of this online guide.

Compassionate Travel Aids Animals

In an attempt to reduce the suffering endured by animals used for tourist entertainment, the World Society for the Protection of Animals (WSPA) has launched a new website, CompassionateTravel.org, which educates travelers on ways to make their trips animal-friendly.

“Many people may be aware that thousands of bulls are killed and maimed each year during bullfights, but most do not realize that donkeys, horses and elephants are sometimes forced to carry tourists for hours without food or water or that performing animals are often trained using cruel techniques,” says Dena Jones, WSPA’s U.S. programs director.

Military Sonar a Death Sentence for Marine Life?

Is it true that military sonar exercises actually kill marine wildlife? – John Slocum, Newport, RI

Unfortunately for many whales, dolphins and other marine life, the use of underwater sonar (short for sound navigation and ranging) can lead to injury and even death. Sonar systems-first developed by the U.S. Navy to detect enemy submarines-generate slow-rolling sound waves topping out at around 235 decibels; the worlds loudest rock bands top out at only 130. These sound waves can travel for hundreds of miles under water, and can retain an intensity of 140 decibels as far as 300 miles from their source.

These rolling walls of noise are no doubt too much for some marine wildlife. While little is known about any direct physiological effects of sonar waves on marine species, evidence shows that whales will swim hundreds of miles, rapidly change their depth (sometime leading to bleeding from the eyes and ears), and even beach themselves to get away from the sounds of sonar.

In January 2005, 34 whales of three different species became stranded and died along North Carolinas Outer Banks during nearby offshore Navy sonar training. Other sad examples around the coast of the U.S. and elsewhere abound, notably in recent years with more sonar testing going on than ever before. According to the nonprofit Natural Resources Defense Council (NRDC), which has campaigned vigorously to ban use of the technology in waters rich in marine wildlife, recent cases of whale strandings likely represent a small fraction of sonars toll, given that severely injured animals rarely make it to shore.

In 2003, NRDC spearheaded a successful lawsuit against the Navy to restrict the use of low-frequency sonar off the coast of California. Two years later a coalition of green groups led by NRDC and including the International Fund for Animal Welfare (IFAW), the League for Coastal Protection, Cetacean Society International, and Ocean Futures Society upped the ante, asking the federal courts to also restrict testing of more intense, harmful and far ranging mid-frequency types of sonar off Southern Californias coastline.

In filing their brief, the groups cited Navy documents which estimated that such testing would kill some 170,000 marine mammals and cause permanent injury to more than 500 whales, not to mention temporary deafness for at least 8,000 others. Coalition lawyers argued that the Navys testing was in violation of the National Environmental Policy Act, the Marine Mammal Protection Act and the Endangered Species Act.

Two lower courts upheld NRDCs claims, but the Supreme Court ruled that the Navy should be allowed to continue the use of some mid-frequency sonar testing for the sake of national security.

“The decision places marine mammals at greater risk of serious and needless harm,” says NRDCs Joel Reynolds.

Environmental groups are still fighting the battle against the sonar, lobbying the government to curtail testing, at least during peacetime, or to at least ramp up testing gradually to give marine wildlife a better chance to flee affected areas. “The U.S. Navy could use a number of proven methods to avoid harming whales when testing mid-frequency sonar,” reports IFAWs Fred O’Regan. “Protecting whales and preserving national security are not mutually exclusive.”

CONTACTS: NRDC, www.nrdc.org; IFAW, www.ifaw.org.

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From the Editors of E/The Environmental Magazine
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Women Honored for Dedication to Environment

The Audubon Society will honor six extraordinary women for their efforts in environmental conservation with the prestigious Rachel Carson Award at the sixth annual Women in Conservation Luncheon tomorrow (May 19).

They include: Dr. Sylvia Earle (National Geographic), Sally Jewell (CEO, Recreational Equipment), Elizabeth Putnam (President/Founder of Student Conservation Association) and Elizabeth Colleton, Jane Evans and Susan Haspel (all NBC Universals “Green is Universal” initiative).