IUCN Green Lists: proposed approach to recognize conservation successes

For those of you who have read this blog with any regularity, you have noticed that every once in a while I will post something that is just for fun, something on the lighter side that perhaps shows nature or the oceans at their very best.  With so many weighty issues to address, every once in a while we all need a break.

And when we see healthy ecosystems or species, rather than be lulled into a false sense that all is well, it is hoped that people will be encouraged that the steps being taken and the steps that need to be taken are bearing fruit. Success stories propel us to do more.

That is the basic philosophy being adopted by the IUCN (International Union for the Conservation of Nature).  This worldwide organization is well-known among conservationists for its Red Lists which list and rate threatened or endangered species and ecosystems.  The Red Lists are helpful in identifying specific plants, animals and ecosystems that deserve our immediate attention.  However, they are negative indicators - what's going wrong - and taken as a whole, one can conclude that the whole world is going to hell in a handbasket.  The IUCN recognizes that we also need success stories and so they are preparing to launch two new programs: a Green List for species and one for managed protected areas.

"The concept of a green list is that it can throw a spotlight on things that are actually working," Trevor Sandwith, director of IUCN's Global Protected Areas program, was quoted by OurAmazingPlanet. "We already have well-managed, protected areas in the world, which no one is recognizing."         

Several national parks or protected areas are being put forth as test cases for the Green List concept.  Columbia's Parques Nacionales Naturales is one; Tayrona National Park, within the Parques area, along Columbia's Caribbean coast is another.  Successfully managed ecosystems and species can serve as models for other nations to observe and follow.

The Green Lists program was proposed at the IUCN's recent World Conservation Congress and the plan is to have a formal program adopted at the next congress to be held in 2016.  It is frustrating that movement on this idea has to be measured so slowly, but it will require the cooperation of all the member nations of the union and that will take time to iron out the details.  In the meantime, it does represent an optimistic, positive-thinking approach which many believe is needed in light of the challenges we face.

"We need to show that conservation is much more than just avoidance of extinction," said Elizabeth Bennett, president of the World Conservation Society (which strongly supports the concept of Green Lists as an important companion to the equally important Red Lists. 

Source: OurAmazingPlanet

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.

Atlantic Shark Conservation: Oceana appeals to ICCAT for leadership

As reported earlier today, the ICCAT (International Convention for Conservation of Atlantic Tuna) is meeting this week in Paris as a part of the organization's annual review of bluefin tuna catch limits. But ICCAT's charter is not limited to the management of only tuna fisheries. It also considers the management of "tuna-like" fisheries, which is a catch-all phrase that can include other pelagic migratory predators including swordfish, sailfish, and sharks.

While outcomes from past ICCAT meetings have served more to support the commercial fishing industry than the support of ocean species conservation, recognized conservation groups, like Oceana, continue to bring information to the attention of the ICCAT regarding the rapidly declining numbers of apex ocean predators. This year, Oceana is focusing on sharks and the need for the ICCAT to seriously consider addressing the number of sharks being taken - whether legally or otherwise - and the potential for further abuse through under-reporting.

Oceana has released a new report that estimates that as many as 1.3 million sharks were taken in the Atlantic in 2008. Averaging the weight of the various 21 species listed in the report as being caught within ICCAT-monitored waters, that number equates to 65,000 tons of shark. To put that into perspective, the ICCAT currently limits tuna harvests to under 14,000 tons of tuna - and that is a figure that many scientists believe will doom the Atlantic bluefin tuna to extinction. Just what can we expect with 65,000 tons of shark disappearing each year?

On top of that, Oceana believes 1.3 million sharks could be a gross underestimation due to under-reporting. According to Oceana, based on scientific estimates from Hong Kong shark fin trade data, the true number could be three times higher - although, you can expect that figure to be dismissed by fishing industry advocates as speculative and unreliable.

“Sharks are virtually unmanaged at the international level,” said Oceana's Elizabeth Griffin. "ICCAT has a responsibility to protect sharks. It is time to protect our ocean's top predators."

While ICCAT does have in place minor shark fin restrictions and a prohibition on bigeye thresher sharks, there are other crucial Atlantic shark species that are afforded no fishery management or protection at all. This includes several species that are currently listed on the International Union for Conservation of Nature (IUCN) Red List. Of particular concern are porbeagle, oceanic whitetip, scalloped hammerhead, and shortfin mako sharks.

According to an Oceana press release, the group's representatives will be calling on the ICCAT to implement the following initiatives:

• Prohibit the capture of endangered and vulnerable species, including hammerhead, oceanic whitetip, common thresher and porbeagle sharks;
• Establish science-based, precautionary catch limits for other commonly caught species in ICCAT fisheries, especially for at-risk shortfin mako sharks; and
• Improve the ICCAT shark finning ban by requiring sharks to be landed whole, with their fins still naturally attached

Considering the ICCAT's dismal track record, Oceana has its work cut out for itself. But they continue to go up against the pro-shark fishing interest groups in these international arenas, hoping that at some point forward-thinking policy makers will take decisive action in favor of sharks before it is too late.

As they push the agenda forward, we, as individuals, can support them and make responsible pro-conservation choices regarding shark, tuna, and billfish products. After all, the fishing industry is, in large part, simply responding to market demand.

Read the Oceana press release.

Basking Shark: NOAA's "species of concern" designation is a warning flag

NOAA, the U.S. National Oceanographic and Atmospheric Administration, took a slightly unusual step by declaring the eastern North Pacific's basking shark a "species of concern." While it sounds a bit like a suspect in an unsolved homicide, what the designation actually does is recognize that the basking sharks that migrate along the coast from Canada to the central coast of California are not recovering in numbers as expected since the taking of basking sharks commercially was curtailed in the 1970s.

Basking sharks, which are listed as endangered on the IUCN Red List but not yet eligible for protection under the U.S.'s Endangered Species Act, are typically cold water, plankton-feeders and quite spectacular to see. Reaching lengths of up to 40 feet, they cruise near the surface with their cavernous mouth agape, filtering plankton and other small organisms. They pose no threat to humans but the reverse is certainly not the case.

Basking sharks have been hunted in the past - sometimes for meat, sometimes because they disrupt the salmon fisheries. Though now protected from deliberately being taken, they can still get caught in fishing nets or struck by vessels as they cruise the surface.

The importance of a government scientific agency taking a step like this is that it essentially greases the wheels for marine scientists to consider the basking shark as a study subject. With NOAA's acknowledged concern, the designation can assist scientists in seeking funding for research projects.

"But why should we fund your study of this shark? It's not exactly endangered is it?" "No, not yet. But NOAA feels sufficiently concerned enough to give it this designation as a warning that steps need to be taken to avoid endangering the animal further. And to know just what those steps should be, we need research. Funded research."

The basking shark - a shark that once schooled by the hundreds in decades past, now only seen a few at a time. If at all. NOAA is taking the commendable step of raising a flag. And they plan to do more. A website will be launched in December for scientists and the public alike to report sightings. In the meantime, you can report sightings by calling 858-334-2884 or send an email to Heidi.Dewar@noaa.gov.

Read more about NOAA's announcement in ScienceNews.
Read more about basking sharks at NOAA's website.