Manta Rays: decline motivates IUCN to declare rays vulnerable to extinction

Here's a piece of good news for manta rays and all those who love them. David Shiffman (WhySharksMatter) writes in southernfriedscience.com about steps being taken by the International Union for the Conservation of Nature (IUCN) regarding adding manta rays to the IUCN's Red List, listing them as "Vulnerable" to extinction.

Now that may not seem like good news at first, but by making the declaration, it can start the wheels in motion that can lead to international regulations and restrictions. This can lead to preserving the species and preventing any further erosion to their numbers beyond the 30% decline that has been seen in the past few decades.

Threatened Gentle Giants: both species of manta ray added to the IUCN Red List

Manta rays are true gentle giants; though they can grow more than 20 feet wide from wingtip to wingtip, they eat only plankton. Swimming with these animals is a rare thrill for SCUBA divers, and manta-viewing ecotourism is worth over $100 million each year. Like many species of sharks, manta rays grow slowly and reproduce rarely. According to Dr. Nick Dulvy of the IUCN Shark Specialist Group, “ they give birth to an average of one offspring every two years…they are a long-lived species with little capacity to cope with modern fishing methods.” They also migrate across huge distances, regularly crossing between national boundaries and spending much of their time on the high seas, making management difficult.

Although their biology cannot support a large-scale fishery and their behavior makes any fishery inherently difficult to manage, manta rays are very much in demand. At least part of them is: their gill rakers. According to Lucy Harrison, program officer for the IUCN Shark Specialist group, “Increasing demand for these fishes’ filter-feeding system for traditional Chinese medicinal purposes, especially in Hong Kong, is rapidly driving down their population everywhere.”

By some measures, the global population of manta rays has declined by more than 30% in recent decades, with some local populations facing much larger declines. Earlier this week, an IUCN Shark Specialist Group team led by Andrea Marshall has concluded that both species of manta ray (the giant manta Manta birostris and the reef manta Manta alfredi) should be declared Vulnerable* to extinction.

The IUCN Shark Specialist Group recommends that several steps be taken to protect mantas from further population declines. These include creating an international conservation treaty for both species, a CITES listing, and national-level policy changes in countries that fish for mantas. Some of these proposals may benefit from the support of the online conservation community, so please stay tuned! I’ll continue to report on these suggested policies as they moves forward.

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* “Vulnerable” in the context of an IUCN Red List status should be capitalized, as should other IUCN Red List statuses. For more information on what “Vulnerable” means, please visit the Red List website here.

Western Black Rhino: IUCN declares the African species officially extinct

We've lost one and the world is a lesser place for it.

Today, the International Union for the Conservation of Nature (IUCN) declared the Western Black Rhinoceros of Africa officially extinct.

In addition, two other sub-species of rhinos are being considered as most likely gone. The Northern White Rhino of central Africa is considered "possibly extinct" in the wild, and the Javan Rhino is "probably extinct" in Viet Nam (a small population is still holding on in Java, but their numbers are declining).

Rhino populations have suffered for decades due to habitat loss and, in particular, poaching. The demand for rhinoceros horn as a homeopathic cure in Eastern medicine, ranging from cancer cures to an aphrodisiac, has lead poachers to track down rhinos within supposedly protected animal reserves. The same situation is putting tigers and Asian bears at a high level of risk also.

When the population of a particular species gets low enough, several factors come into play that can cause their numbers to rapidly decline, spinning out of control. Lack of sexually mature males and females; bio-dispersion, whereby the population is now so diverse the odds of an encounter between a male and a female become more remote; poor health due to a lack of good mixing of the DNA gene pool - all begin to work against the few remaining animals.

"In the case of both the Western Black Rhino and the Northern White Rhino, the situation could have had very different results if the suggested conservation measures had been implemented," he added. "These measures must be strengthened now, specifically managing habitats in order to improve breeding performance, preventing other rhinos from fading into extinction," said Simon Stuart of the IUCN Species Survival Commission.

But all is not a total loss for one of wild nature's iconic species. Although a quarter of all mammal species are facing extinction, according to the IUCN's Red List, when conservation measures are put in place and effectively managed and enforced, there can be positive results. Case in point: Africa's Southern White Rhino had reached a perilous low of around 100 animals at the end of the 19th century - a victim of both poaching and "great white hunters." But today the Southern White Rhino numbers over 20,000.

In Nature, any extinction is a loss - from a small insect to a massive animal like a rhino. The biological web that ties all species together within an ecosystem makes adjustments for the loss and sometimes those adjustments cascade through several different flora and fauna as it looks for some sort of stability. Whether the changes are subtle or catastrophic, they are changes at the hand of man, changes that nature was never truly prepared to deal with.

When we lose the Western Black Rhino, we lose a little bit of ourselves, of our potential as stewards of the environment.

Source: MSNBC.

Tigers Facing Extinction: November summit holds hope for their future

2010 is the year of the tiger according to the Chinese calendar.

Probably no animal on dry land impresses me more than the tiger. It is a magnificent combination of strength, grace, and color. I can almost understand the allure felt by those who delve in ancient homeopathic medicine; the power of this great animal somehow being transferred to us mere mortals. But it is that very demand which fuels poaching and, combined with encroachment on their natural habitat, has reduced the number of tigers in the wild to a paltry estimated population of 3,200.

I have written about their precarious predicament before and I bring it up again because of one significant ray of hope. In November, a meeting will be held in St. Petersburg, Russia with representatives of 13 nations - primarily those that have wild tigers within their borders - to discuss how to better enforce and protect the remaining population and what can be done in the long term to improve their numbers and ensure their survival.

Over the past century, the number of wild tigers have declined by a staggering 97%. If nothing can be achieved at next month's meeting, according to the World Wildlife Fund (WWF), the tiger could become extinct in the wild within 12 years.

"The worse scenario is that the tiger could be gone when the next year of the tiger comes along, in 12 years," said Ola Jennersten, of WWF Sweden.

But another factor that threatens the wild tiger is the demand for tiger products obtained from captive tigers and how the current economy is pushing more captive tiger owners to sell their animals, no questions asked, both of which keep the demand high for wild tigers.

In fact, according to the WWF, there are more captive tigers in the United States alone, than in all of the wild. An estimated 5,000 tigers are held in the U.S. - and, unfortunately, not just in regulated zoos and animal parks, but in private compounds that are far from healthy and humane for the animals.



The WWF is pushing for stricter regulation and better enforcement regarding captive tigers in the U.S. and is conducting a campaign to get Secretary of State Hillary Clinton to attend the November Tiger Summit to ensure that the U.S. plays an active role in preserving and protecting tigers, both wild and those within the nation's borders. Concerned U.S. citizens can visit the WWF website or click here to become part of the campaign.

For the first time in a long time, there could be a reason to feel encouraged. "Despite the gloomy figures, the situation is more hopeful than ever," Jennersten said.

When I was a child, my favorite stuffed animal - my security blanket as it were - was a small tiger. While I would probably be seen as potential prey by a real tiger today, there is that spot in my heart that hopes to give back to the tiger some of the security it once gave me. That's a trade in animals I could live with.

Read about possible tiger extinction in NPR.
Read about captive tigers in the U.S.

Plants At Risk: research catalogs potential extinction threat to one-fifth of all plants

There are several news agencies that are picking up on a recently released study that declares that one-fifth of the world's plants are faced with extinction. Animals or large-scale ecosystems seem to catch the attention of the general public more than plants, perhaps because we can relate to an animated polar bear, a wolf, or a shark better than we can to an orchid. And ecosystems catch our attention because their fate is often wrapped up in global implications.

However, plants, as much as they may be taken for granted or ignored altogether, play a significant role in not only the overall health of the planet but to mankind specifically.

Researchers at England's Royal Botanical Gardens at Kew, and the Natural History Museum, along with the International Union for the Conservation of Nature (IUCN) have analyzed over 4,000 plant species and determined that 22% should be considered threatened with possible extinction, while another 33% could not have their status determined because so little is known about them. Their research forms an important baseline by which future growth or loss can be measured.

With an estimated 380,000 plant species in the world today, what appears to be the greatest threat is habitat loss - areas of land that are being consumed and redirected towards agriculture. Tropical rain forests seem to be the greatest botanical areas at risk.

Now what might assume that the loss of some obscure orchid or weed is not a big deal; that as long as we have plenty of fruits and vegetables, we will be okay. Not so, according to the research. Many medicines have been first derived or can only be derived from plant extracts, and with the loss of botanical environments that can be a loss of an untold number of future medications. Ironically, developing countries, where much of the tropical forests and plant systems are being wiped out, are one of the main benefactors in plant-derived medicines for conditions ranging from malaria to leukemia.

In addition, focusing on plants that serve the greatest numbers of people as food is a limitation that can have profound effects on the very plants we depend on. It is reported that 80% of the calories consumed by the world come from only 12 different plant species. That can cause a precarious limitation in the DNA gene pool of plants which can have a negative impact on those 12 species we so much depend on. Imagine ridding the world of all animals except for cows, pigs, chickens and a few fish and you can see how precarious our situation would become in maintaining a healthy gene pool of feed animals.

The report on the ongoing botanical research comes in advance of next month's United Nations Biodiversity Conference. The future of plants on earth must be an important component of a more holistic approach towards biodiversity, realizing that every plant or animal plays a role and we must consider the implications when any species, plant or animal, is brought to the level of extinction.

Stephen Hopper, professor and director of the the Royal Botanical Gardens said, "We cannot sit back and watch plant species disappear - plants are the basis of all life on Earth, providing clean air, water, food and fuel. All animal and bird life depends on them and so do we. Every breath we take involves interacting with plants. They're what we all depend on."

Read more about it in the Royal Botanical Gardens' KEW News.

China's Finless Porpoise: dwindling population faces extinction in Yangtze River

China's Yangtze River has been described as the "Asian Amazon" and, as seems to befall many large rivers in growing nations, it has seen its share of perils from urban development, commercial use, and industrial pollution. Unfortunately, many of the river's inhabitants pay the price - including the river's dwindling population of freshwater cetaceans.

The Baiji - a freshwater river dolphin with an unusual, elongated jaw/beak that roamed the Yangtze for tens of thousands of years - was declared extinct in 2007, eliminated from the planet in a matter of a few decades.

And now another rare dolphin species is facing a similar fate. As reported in the BBC Earth News, a new study published in the Marine Biology journal, says that the river's remaining population of finless porpoises are headed for extinction. The finless porpoise (so named because it lacks a dorsal fin) lives in the Yangtze, Yellow Sea, and South China Sea; and according to the study, there are genetic differences between the various populations. This would indicate that there is no co-mingling between the groups and this can add to their inability to withstand adverse changes to one group's environment.

This type of isolation and loss of mixing of the DNA gene pool is also what threatens land animal populations, like some of the wolf packs in the north central United States.

With everything from human waste and industrial chemical pollution, boat traffic, and commercial fishing taking place in the Yangtze River, the rapidly declining freshwater population of the finless porpoise - numbering less than 1,000 when last estimated in 2006 - will not survive without strong action on the part of the Chinese government.

The only hope is for a fundamental change in attitude in China regarding its aquatic natural resources. And there is some evidence of that which could produce results, hopefully before it is all too late.

While a major producer of CO2 emissions and the greatest exporter of seafood of any country, China is also realizing the environmental impact its economic growth is having on itself. The country is making sizable investments in alternative energy and, according to the Seafood Choices operational arm of SeaWeb, China's seafood distributors are beginning to show some interest in sustainability. Seafood Choices is holding seminars with seafood exporters in advance of a Sustainable Seafood Forum to be held in China this November.

Whether all of this will produce changes that will come in time to save the finless porpoise remains questionable at best. It is unfortunate that humans seem to be a reactionary species, responding to a tragedy that might spell a better future for some but leaving victims - like the Biaji and the finless porpoise - as reminders of what we could have done if only for a little foresight.

Read about the finless porpoise in BBC Earth News.
Read about SeaWeb/Seafood Choices progress in China.

Dealing In Endangered Species: slitting our own throats

What you see in the picture above are not wild cats in a cage, but the severed heads or pelts of cheetahs, ocelots and other rare and endangered cats - all confiscated and in storage in the U.S. Fish and Wildlife Services' main storage facility in Colorado. It is a sobering place, a bold reminder of man's greed and perverted sense of dominion over animals - perverted because as we threatened our natural resources, we threaten ourselves.

The worldwide trade in exotic and endangered animals is as important an issue as global warming or pollution/commercial development as to its worldwide impact on species. In 1973, the U.S. Endangered Species Act was passed and two years later the international Convention on International Trade in Endangered Species (CITES) was ratified but while these laws and governing bodies have done much to regulate, enforce, and protect endangered species, the slaughter continues.

And why? Well, the dilemma with many endangered species is that, to the poacher, the value increases as the more endangered it becomes and in impoverished areas where much of the illegal poaching takes place, the temptation to put food on their table is too great.

Terry Grosz, former regional director of enforcement for the Fish and Wildlife Service explains, "Given the poverty and corruption that exist in other parts of the world, there will always be pressure to resort to the illegal wildlife trade. People have to eat. When people are hungry, this is what they do."

But what supports the market for these products? There is a market based on greed and status. Do we really need a tiger head or a set of white shark jaws above our mantle? Or a stuffed gorilla hand to use as an ashtray? Or how about a caiman, standing on hind legs and holding a silver tray like some reptilian butler? Man's superiority? Only in his capacity for evil.

Another pervasive motivation that drives the market is the cultural history in ancient homeopathic medicine. Rhino horns, tiger penis (freeze-dried for your convenience), black bear gallbladder bile, and many more - all for everything from libido to hangovers and more, and at times more challenging to address than the status souvenir buyer.

But it must be addressed. Scientists have been making estimates of as much 15% to over 30% of the planet's animal and plant species could be bound for extinction by 2050. Naturalist E.O. Wilson says we may be heading to a new epoch - the current Age of Mammals, or Cenozoic Period, would be followed by the Eremozoic Period, a Greek prefix denoting loneliness.

Support organizations that are working towards curtailing the illegal killing and trading of exotic and endangered animals: CITES, WildAid, Center for Biological Diversity, and there's many more. They need your help . . . and so do the plants and animals of Earth.

"Wildlife dies without a sound," says Grosz. "We're the only guys who can give them a voice." Join them.

Thanks to the Los Angeles Times.

Florida's Softshell Turtle: a target for Asian market demand

Along with shark fins for soup and bluefin tuna for sashimi, another aquatic animal that has been impacted by Asian consumer demand is the freshwater softshell turtle. With the boom in Asian economics, the demand for this oriental delicacy (and it's use as a homeopathic medicine) has skyrocketed to the point where populations of softshell turtles in Asian countries including China, Laos, Vietnam and Cambodia have all been wiped out.

So, who is meeting this escalating demand? Sunny, fun-filled Miami. That's right, Florida is one of the leading exporters of softshell turtles, shipping them to Los Angeles or San Francisco for export overseas. One Florida seafood dealer alone processes up to 20,000 pounds a week - approximately several thousand turtles.

Federal laws that protect endangered turtle species do not extend to Florida's softshell species and while states like Texas, Oklahoma, Alabama, and Mississippi have prohibited or severely limited harvesting of these turtles, the only regulation in effect in Florida is a temporary 20-turtle-a-day limit. With the number of licensed commercial fisherman in the state that still equals an annual harvest of more than a million turtles.

The battle wages between those who seek to prohibit or limit the commercial catch and the those who support the commercial industry and their need to catch a sufficient number so as to be profitable. Once again, it's the conflict of short term economic goals vs. sensible long term environmental policy. Remember, it's only man that considers the economic impact of limiting the harvesting of a limited natural resource; Nature does not care to hear the economic arguments. It only reacts to what is being imposed upon it.

"They've been around for hundreds of millions of years and have survived climate change and lots of other things," says Jeff Miller, Center for Biological Diversity. "And now we're about to eat them out of existence - in the blink of an eye, biologically speaking."

Updating the Red List: wild mammals in peril

According to the World Conservation Congress, meeting in Barcelona, Spain, up to 25% of all wild mammals are threatened with extinction due primarily to loss of habitat and hunting/poaching. Of that total, up to 33% of all marine mammals are in peril - particularly dolphins which get caught in fishing nets and drown.

The figures released are part of an update of the Red List which lists all threatened species and is maintained by the International Union for the Conservation of Nature. You can view the entire list at their web site (click here).

The reasons for this plight of so many animals runs the gamut - from habitat loss for lumber or farming in developing countries to meeting the demand for "luxury" items like chimp and gorilla meat. Whatever the reason, the loss of any animal has an impact on the overall balance and health of the local ecosystem. In fact, biodiversity - having a wide range of species - is a key element to any healthy ecosystem. This has always been one of the cornerstones of the evolutionary process.

A precise accounting of all marine mammal species is complicated by the challenges in locating these animals, compared to land-based species. Says Jan Schipper of Conservation International, "If you don't know where they are or how many there are, then it's hard to determine if they have viable populations or [are] threatened with extinction." That means that the conservative numbers offered by the World Conservation Congress could be much higher. (Read article by Ken Weiss/Los Angeles Times).