Conservation International Blog

Publications, Science, marine, species

Studying Indonesia’s Underwater Magician

Working with the California Academy of Sciences which publicized her work, CI-Indonesia’s Crissy Huffard has been studying the evolution of mimicry in Indonesian octopus, which can which can impersonate flatfish, lionfish, and sea snakes to dupe potential predators.

Her work was recently published in the Biological Journal of the Linnean Society

As the Science and Monitoring Advisor for CI-Indonesia’s Marine Program working in the Bird’s Head Seascape, I have the chance to observe thousands of incredibly unique, colorful, and unusual species that are found nowhere else on earth, or that have become rare elsewhere.

The coral reefs, mangroves, and sandy-bottom communities here are simply mind-boggling, and home to the greatest marine biodiversity left in the ocean, offering us a living laboratory for better understanding how marine ecosystems interact. Cephalopods (squid, octopus, cuttlefish and nautilus) are definitely some of the more charismatic animals out there (yes, I am biased), and few places on earth offer the chance to observe them in their natural element – truly undisturbed, untrawled, unfished, and surrounded by predators. Teaching others about their place in the ecosystem is part of what inspires me to work so far from my home in California.

The ‘Mimic Octopus’

The ‘Mimic Octopus’ Thaumoctopus mimicus changes its pattern and behavior to imitate a flatfish – an unusually conspicuous primary defense mechanism.

Cephalopods are incredibly important ecologically, sending protein from the smallest crabs and clams in the ocean around the food web to tuna, sharks, and whales. Yet the same defenses that help them avoid predation also work on scientists – they can be a pain in the rump to find and study. We know very little about how their famed abilities to learn, remember, and change their appearance allow them to survive and reproduce in the wild.

But with the expanding reach of scuba and affordable underwater video/photography, we’re piecing things together and getting amazing glimpses into what it means to live a successful octopus life. Every time a cephalopod biologist dives, we have the chance to turn all previous (cephalopod) work into a tailspin. Or we might finally get to understand an odd body part described in the 1800s and not studied since. For a scientist, this is an inescapable draw.

The Mimic octopus is an especially intriguing subject because it moved into a whole new realm of defenses for octopuses. By working with scientists at the California Academy of Sciences who had expertise in evolutionary genetics we learned that the Mimic’s ancestors had great camouflage abilities, and could even mimic flatfish. This alone should have been good enough of a defense to hide from predators – indeed it seems to work fine for its drably-colored living relatives in Indonesia and Hawaii. But somehow through natural selection mimics evolved a defense that relies on predators seeing them instead of not seeing them.

As in any scientific field, exceptions are exciting discoveries. Now that we know this about the mimic, we can try to figure out why being conspicuous helps a mimic octopus survive. Are they venomous themselves? Even though these octopuses don’t mimic any particular flatfish very well, is it good enough to work in the center of biodiversity, where there may be lots of toxic models? Does this color pattern help mimic octopuses identify potential mates?

Because of overfishing, trawling, sedimentation, and land reclamation, the Mimic’s physical and predatory environments have changed in ways we are only beginning to understand. How will these observant and dynamic animals adjust to these changes? The more we can spend time in the water with them, and compare their present-day behaviors to evolutionary history, the better we can hope to understand how these octopuses got here and where they’re going.

In September we will explore an area of the Bird’s Head Seascape and see nearly pristine octopus habitat. Professor Hamid Toha from UNIPA is studying the population genetics of octopuses while Raja Ampat monitoring team member Rudy Dimara will document octopus species and body-pattern diversity. Will this make us reinvent what we know of Mimic octopuses? We’ll keep you posted!

These findings were published in Huffard CL, Saarman N, Hamilton H, and Simison WB. 2010. The evolution of conspicuous facultative mimicry in octopus: an example of secondary adaptation? Biological Journal of the Linnean Society 101: 68-77
Available online: http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8312.2007.00948.x/abstract

Science, species

Old World’s smallest frog is discovered in Borneo

Last week, a pea-sized frog species – thought to be the Old World’s tiniest – was recognized as a species new to science. Dr. Indraneil Das, leader of the research team that found the frogs on the island of Borneo, describes the moment of discovery.

© Prof. Indraneil Das/ Institute of Biodiversity and Environmental ConservationWe first ran into this frog late at night on September 4, 2004, at Kubah National Park in Sarawak (a state in Malaysian Borneo).

We had just completed our field work at a nearby pond, monitoring the local amphibians breeding there with our students from Universiti Malaysia Sarawak. My colleague from Hamburg, Alex Haas, and I were looking forward to returning to our chalet (and a cooked meal), when we heard an unfamiliar call.

(Listen to the frogs’ calls for yourself!)

Looking down, we didn’t see much. Only after lying down flat on the ground could we see the tiniest frog imaginable! It took us a good 30 minutes to catch the first of several specimens we were to eventually acquire.

Other researchers before us had collected the species, but they presumably thought they were the young of another species. However, the frogs’ calls convinced us that we were dealing with adults (as only adult frogs make these vocalizations), and after comparison with museum specimens in the United States, Europe, and Asia, the species proved to be new to science.

The 10.6-12.8mm frog was formally described on August 19, 2010 in a paper in the taxonomic journal Zootaxa.

DISCOVER: Learn more about this species and see its size comparison >>

© Prof. Alexander Haas

Courtesy of Dr. Das

Dr. Indraneil Das
Institute of Biodiversity and Environmental Conservation

This species discovery was not part of CI’s “Search for the Lost Frogs” campaign; however, in September Dr. Das will join our search, leading a scientific team on an expedition to find the Sambas Stream Toad (Ansonia latidisca) in Indonesia and Malaysia.

Follow the search! >>

food, marine

CI’s Dr. Bryan Wallace Discusses Declining Fisheries

The decline of global fisheries such as bluefin tuna, the unsustainable “race for fish”, and livelihoods of subsistence fishers were just a few of the issues addressed by CI Science Advisor Dr. Bryan Wallace in a recent interview on the Voice of America (VOA) public affairs program “On the Line.” It broadcasts on radio, television, and online in English-speaking countries around the world.

Together with conservationist and author Richard Ellis, Dr. Wallace answered host Eric Felton’s questions about drastically declining bluefin tuna stocks as one high-profile example of the many challenges confronting global fisheries and the people who depend on them, for food, health and income. Bycatch – the accidental capture and injury of marine life in fishing gear – is another devastating consequence of fishing methods that are practiced unsustainably.

It wasn’t all bad news though, as Dr. Wallace discussed different management and enforcement solutions that are demonstrating solid, measurable improvements in fisheries, including:  time-area closures, catch-shares, marine protected areas, and partnerships with local communities. Many of these tools are being implemented by CI’s Seascapes programs around the world, and are helping fish stocks recover.

 Interested in more? Watch or listen to the full interview.

Noting that challenges facing world fisheries are both complex and culturally sensitive, Dr. Wallace highlighted these additional points after the cameras stopped rolling:    

  • More than 30 percent of all wild fish catch is consumed in the United States, Japan and the EU, despite these countries comprising only 12 percent of the world’s population.
  •  When developed countries over-exploit fisheries in their own Exclusive Economic Zones (EEZs), they broker international agreements that allow them to continue to fish in EEZs of developing countries. Developed countries import much more seafood than they export, while developing countries tend to export seafood from their own waters abroad. These inequities reveal the importance of establishing a sustainable management system for fisheries – big and small – that distributes fish catch fairly among the stakeholders.
  • Bycatch – the unintended capture of species in fishing gear that are not the target species of the fishing activities – totals nearly 10 percent (about 9 million metric tons) of the total global fisheries landings (about 90 million metric tons). This bycatch includes fish of all shapes and sizes, invertebrates, corals and countless other creatures. As target stocks decline, bycatch is utilized and marketed, further eroding marine ecosystems. In addition, bycatch is a driver of population declines in marine megafauna like sea turtles, marine mammals, seabirds and sharks.

What can you do to reduce demand on our overfished waters? Start by knowing what you’re eating. Check out sustainable seafood guides by the Blue Ocean Institute and the Monterey Bay Aquarium. If you’re a seafood retailer or supplier, take a look at FishWise, the New England Aquarium and FishChoice - all great resources to help you pursue sustainable fishing practices.

Science, species

From the field: discovery and conservation in Caquetá, Colombia

Earlier this month, CI announced the discovery of a new species of titi monkey by some of our partner researchers at the National University of Colombia. Here, biology student and primate researcher Javier García reflects on his involvement in the discovery.

I remember my first introduction to Colombian primatology: Professor Thomas Defler was offering a postgraduate course at the National University of Colombia called “Primatology of the New World” and, without knowing me very well at all, allowed me to assist in the course. Six months later I was signing a contract with Conservation International that allowed me to receive money from the Primate Action Fund to organize the first expedition to search for a new species of Callicebus monkey in southern Caquetá department. I assured José Vicente Rodríquez of CI-Colombia and Thomas Defler that if the primate existed, I would find it.

Drawings by Stephen NashHistorically, southern Caquetá has been a zone dominated by illegal armed groups, and in the past eight years it has been a disputed zone between paramilitary groups and guerillas, making the region one of the most violent in that part of Colombia. This didn’t dissuade me as a primatologist: I was very young and my father was known throughout the region because of his veterinary work and his good relations with the local people in the countryside. Despite the violent conditions, I felt that I could depend on the good will and the support of the local population.

I began the expedition in June 2008. Depending on the many friendships established by my father during 25 years in the zone, I was able to travel to the vereda La Leona in Valparaíso municipality and install myself at the farm of Señor Alirio Santanilla. Don Alirio’s son Jeison became my assistant and guide in the region. I felt privileged that 40 years after Martin Moynihan had made his initial observation of this primate, it was I who returned to the zone to study the species, and it was I who had the first opportunity to confirm that, as we suspected, this was a new species found only in the region where I had been born.

Two years later, thanks to the Iniciativa de Especies Amenazadas, CI-Colombia, and the Conservation Leadership Programme I find myself traveling throughout Caquetá looking for new groups of Callicebus caquetensis, determining the distribution of the species and defining the threats to the species. This work has taken me to some dangerous places, but I still feel great excitement in this work and have learned to manage certain situations prudently.

For example, I always carry into the field the miniguide that CI-Colombia donated to my project. This book, combined with my own knowledge of common names of flora and fauna in the area, has helped me confront suspicions that sometimes arise from my presence and from my work and its value. The first reaction of many local people is that I might be part of the national intelligence network, collecting information for the military. I don’t blame these people who have had a difficult life and have had to confront violence and guerillas for many years; when they see somebody with GPS and binoculars, it’s natural to suspect him or her of those activities, rather than seeing a person gathering information about natural resources and especially about monkeys, which to them have little value. Fortunately, this work has extended to other parts of Caquetá and has been received by many with approving eyes as well as having generated valuable data about the area.

Since I began this research, I have had great opportunities to enrich my primatological knowledge and my studies have begun to fill in many information gaps in Caquetá which, although it is one of the major colonization fronts in the Colombian Amazon, has been poorly studied due to many years of violence. It looks like the area between the Orteguaza and Caquetá rivers represents the major part of this new species’ distribution, but the territory is very degraded from its original state: severely fragmented and used for cattle ranching and the cultivation of illegal drugs. The condition of this habitat makes it very difficult or impossible for individuals of the species to disperse and it requires animals to survive in small, sometimes isolated fragments.

There are very few adequate forests that could serve as reserves for these monkeys, and there is no national park that could protect a healthy population, so it’s urgent to create some protected areas that could shield the few forests that still exist. This area was prioritized in CI’s workshop 1990 in Manaus, and there’s a lot to do to convince local authorities and the local population to establish some conservation priorities.

I’ll always be grateful to Conservation International, which helped me to open the door to a better future for biodiversity studies in my home region. Learn more about this discovery.

News, Partnerships, marine

Philippine governor voices support for Sulu-Sulawesi Seascape

CI-Philippines Executive Director Romeo Trono talking to the media during the 2nd Sulu-Sulawesi Seascape Congress.

We have just wrapped up the second day of the 2nd Sulu-Sulawesi Seascape Congress, a gathering of around 150 stakeholders from CI’s marine biodiversity conservation corridors in the Sulu-Sulawesi Seascape, a 100 million-hectare (almost 250 million-acre) area in the waters shared by Indonesia, Malaysia and the Philippines. Located at the heart of Coral Triangle, the Seascape is home to some of the world’s richest marine biodiversity. CI has been working in the Seascape since 2005; this gathering allows the participants to look back on the progress made in the last five years and to hammer out plans and priorities for future work. For participants coming from the same corridor, it’s a reunion of sorts, but the meeting is also an opportunity for the teams to meet their counterparts in the other corridors and learn from each other’s experiences. 

­­­­­­­This afternoon’s workshop group discussions have showed that great progress has been made in the past years, especially in terms of establishing marine protected areas (MPAs) and building up the local leaders’ capacities to manage these MPAs and enforce laws effectively. It was also heartening to know that as awareness of marine biodiversity has increased, the local leaders now have a greater appreciation of the need to invest in conservation work. hut on the beach in Sulawesi, Indonesia  

During the opening session, Governor Vilma Santos-Recto of Batangas province, a popular movie star now turned local executive, committed to dedicate more resources to sustain the progress made partly through the partnership with CI’s Sulu-Sulawesi Seascape project. While the participants were starstruck by the appearance of one of the country’s best actresses in their midst, we were even more impressed by the local leadership’s commitment to conserving some of the world’s richest marine environments.  

Read the full story.    

Corina Bernabe is the communications coordinator for CI-Philippines.

News, species

Kihansi spray toad gets second chance

Kihansi Gorge, Tanzania

Kihansi Gorge, Tanzania - historic home of the Kihansi spray toad and site of the planned reintroduction project.

Being immersed in CI’s “Search for the Lost Frogs” campaign, I was excited to read another piece of amphibian news this week from the Wildlife Conservation Society: 100 captive-bred Kihansi spray toads (Nectophrynoides asperginis) could help bring the species back from the brink of extinction in its native African habitat.  

The toads, which were bred at the Bronx Zoo and the Toledo Zoo, were recently flown to Dar es Salaam, Tanzania’s commercial capital, where they will be held at a propagation center before reintroduction into the wild.

The Kihansi spray toad’s range is a classic example of the micro-habitats that many amphibian species have evolved to inhabit. The species was discovered in 1996, living exclusively in the spray of the waterfalls of Kihansi Gorge in eastern Tanzania – an area smaller than 2 hectares (5 acres). After the construction of a hydroelectric dam in the gorge, decreased water flow dramatically reduced its habitat. IUCN declared the species Extinct in the Wild in 2009… but not before several hundred individuals were collected for captive breeding.

Local biologist in front of sprinklers in Kihansi Gorge, Tanzania.

Local biologist in front of sprinklers in Kihansi Gorge. The sprinklers mimic the waterfall spray that characterizes spray toad habitat.

As a former zookeeper who has spent countless hours cleaning monkey exhibits, chopping frozen fish and de-worming poison dart frogs, I can personally attest that zoo employees are among the world’s most dedicated animal lovers and conservationists. The Kihansi spray toad project is just one example of the huge role that zoos can play in breeding and reintroducing threatened species into the wild. There are many uncertainties with a project like this; 100 individuals is, after all, an incredibly small population that could easily be wiped out by a variety of factors. Fortunately, in addition to the toads waiting to be released into the wild in Tanzania, thousands more remain in captivity at the Bronx and Toledo Zoos – providing a lifeline for the species in case the first reintroduction attempts are unsuccessful.  

The government officials and field conservationists in Tanzania are also working hard to preserve this high-profile species. In order to re-create the toad’s habitat in the Kihansi Gorge, the Tanzanian government has set up a sprinkler system that mimics the waterfall spray on which the amphibians depend.

Although the Kihansi spray toad’s decline in the wild may be the result of human action, its survival now depends on it.

Corporate, News, Partnerships, species

In Brazil, major corporations launch biodiversity initiative

Atlantic Forest in Brazil

We are happy to announce that CI has recently joined a promising initiative by some of the largest corporations operating in Brazil, committing themselves to biodiversity conservation in the country and the sustainable use of its natural resources.

Last week, the “Corporate Movement for the Protection and Sustainable Use of Biodiversity was launched at an event attended by the Brazilian Minister of Environment Izabella Teixeira.

The coalition of companies distributed an open draft of a statement about their commitments and proposals to the Brazilian government’s delegation to enhance and qualify the country’s effective leadership at October’s Convention on Biological Diversity (CBD) meeting in Japan.

Among other issues, the corporations are committing to:

  •  adopt the principles of the CBD into their business strategies;
  •  monitor their supply chains in order to ensure ecosystem protection; and
  • prioritize the maintenance and restoration of these ecosystems.

Six companies from a range of sectors such as cosmetics, energy, steel and mining are behind the initiative, including some of CI’s long-term partners – Walmart and Alcoa. CI-Brazil is one of the eight NGOs that are supporting and offering scientific expertise to the initiative. Patricia Baião, CI-Brazil’s Amazon Program director, represented CI at the launch event.

Over the next couple of weeks, the draft of the initiative’s statement will be open for public contributions through Wiki Debates. In September there will be a seminar to present the letter’s final version to the Brazilian government and all presidential candidates.

Isabela Santos is the communications director for CI-Brazil.

Campaigns, Science, species

CI amphibian expert talks frogs on NPR

 

During their morning commute today, millions of radio listeners learned about the dramatic decline of the world’s amphibians from CI’s Claude Gascon, a guest on NPR’s “Morning Edition.” Gascon, who also co-chairs the Amphibian Specialist Group, explained the direct implications of this decline for human well-being, citing the example of the gastric brooding frog (Rheobatrachus sp.), a fascinating amphibian whose unique reproductive behavior could potentially provide insight on the treatment of stomach ulcers. Unfortunately, neither species of gastric brooding frog has been seen in 25 years, and both are now presumed extinct. 

But how can we be sure? Our “Search for the Lost Frogs” campaign is sending scientists into the field to look for these and other species not seen in years. We will then use the expedition findings to advocate for conservation action that will protect these vulnerable creatures so critical to the health of our planet.

Listen to the interview to get the full story, and don’t forget to join the search for the latest updates from the field.

News, Partnerships, Publications, Science, species

A titillating surprise: A new species of titi monkey!

© Javier García

A young female Caquetá Titi Monkey.
© Javier García
Click the photo to learn more about this species and listen to its calls.

Today, CI announced the discovery of a new species of titi monkey (Callicebus caquetensis) on a scientific expedition in the Colombian Amazon. Research team lead Dr. Thomas Defler blogs about the discovery and the challenges of working in regions of armed conflict.

Studying Colombian primates has always been difficult, as they tend to live as far from human beings as possible. But after many years of learning about these primates, I have a long list of places I would go if didn’t have to worry about death or capture by revolutionary guerillas in Colombia.

In recent years, one of my biggest priorities was to follow up on Martin Moynihan’s 1976 sighting of a seemingly new species of titi monkey in southern Caquetá province. Since the 1970s the area has been under the dominion of these guerillas, who have made a great part of Colombia off-limits to foreigners. An impossible situation for a lowly foreign primatologist, no matter how many years I’ve been here! This situation has also been true in many other corners of the country where real conservation work is desperately needed.

During the last eight years, President Uribe has made an effort to fulfill campaign promises to improve security for all Colombians – an especially important goal for people in the countryside. Still, southern Caquetá seemed a bit risky for me.

Then one day, three years ago, I met a biology student named Javier Garcia who was searching for a meaningful conservation project. He was from Florencia, the capital of Caquetá, and – very important as well – his father was a veterinarian well-known in southern Caquetá where the monkey was said to live. Javier had no idea that I had been waiting for someone like him for years. I proposed the project, and he was immediately interested. He only needed direction, and I was ready to direct.

This discovery was made possible by an international network of interested and supportive people. The folks at CI had also heard about this possible new species of monkey, and, together with a small grant from the Primate Action Fund, they were willing to give us the basic support we needed to make the expedition a success.

Using local transportation, and geo-referencing observations with GPS, the monkey was spotted, just a few days after Javier’s arrival in Caquetá.

IN DEPTH: Read more about this expedition.
Callicebus caquetensis. © Javier García

Look for the official write-up of this species in Primate Conservation Number 25.

You might also enjoy:
Conservation in Conflict Zones
Discovering Species

In the Field, species

A Lifelong Passion for Amphibians

Robin Moore with an amphibian friend.

As CI launches our “Search for the Lost Frogs” campaign, Amphibian Conservation Officer Robin Moore reflects on how he first became interested in amphibians – and why these species are so important to protect. (This text has been adapted from the 2009 book “Courting the Wild: Love Affairs with Reptiles and Amphibians“. The book was edited by Jamie K. Reaser.)

“I’m going to catch amphibians!” I announced to my parents from the kitchen doorway. My backpack bulged with containers of every size and shape imaginable, and my feet rattled in gum boots two sizes too large. I was seven and would, apparently, grow into them. I didn’t have time to explain right now. We had been on vacation for almost a whole hour and I had animals to discover!

Drumbeg is a sleepy village on the west coast of Scotland, hidden among bleak, heather-clad mountains that rise magnificently into the clouds. As far as I was concerned we had traveled to the other ends of the Earth from our home in Edinburgh. I felt a surge of excitement at this wild, unexplored world.
I careered down the rocky hill towards the peat bogs that carpeted the low ground between the hills.. When I reached the bog I stopped in the middle and stood motionless to survey the scene.

As I caught my breath a small creature pierced the stillness, treating itself to a large gulp of air before darting back down in a flash of orange and white. I froze with excitement, realizing what the creature must be: a newt! I had read about them and seen pictures, but this was my first one in the flesh. I had to catch it!

My plan was simple: I would wait, motionless, until it surfaced again. A minute passed. Five minutes. Then suddenly, out of the brown depths, it appeared, gracefully undulating upwards. I lunged toward it; but my legs folded under me, launching my upper body unwillingly into the brown water.

Lying face down in the bog, I felt the creature brush my submerged right hand. I closed my hand around it, and felt it squirm to escape my firm grasp – I had it!

The newt’s bulging eyes and smooth, delicate skin bore more than a passing resemblance to a frog; but, unlike a frog, the newt was long and slender and adorned with a graceful tail. I placed it on my hand and watched it amble clumsily in a bid to return to the water.

I named him Norman. I could tell it was a ‘he’ because Norman was decked out in dapper mating regalia. He displayed an impressive crest along his spine and his tail was tapered to flicker provocatively as he danced to attract a mate. How the lady newts would adore him, wafting his irresistible scent in their direction!

I had no time to waste: I had to introduce him to the rest of the family. I hurriedly fetched a jam jar from my backpack, filled it with water and plopped Norman inside.

I trotted back to the house as fast as I could, clutching the prized jar as if it were the egg of a dodo. I burst into the living room to find my grandparents, parents and brothers relaxing over a cup of tea and the weekend papers. I plonked Norman’s jar onto the coffee table and exclaimed, “Look what I found! Have you ever seen anything like it?”

  Read more…