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News articles on biodiversity crisis
Mongabay.com news articles on biodiversity crisis in blog format. Updated regularly.
(01/11/2012) The number of species identified by scientists as vulnerable to climate change continues to rise along with the Earth's temperature. Recent studies have found that a warmer world is leading to premature deaths of harp seal pups (Pagophilus groenlandicus) in the Arctic, a decline of some duck species in Canada, shrinking alpine meadows in Europe, and indirect pressure on mountain songbirds and plants in the U.S. Scientists have long known that climate change will upend ecosystems worldwide, creating climate winners and losers, and likely leading to waves of extinction. While the impacts of climate change on polar bears and coral reefs have been well-documented, every year scientists add new species to the list of those already threatened by anthropogenic climate change.
How lemurs fight climate change
(01/09/2012) Kara Moses may have never become a biologist if not for a coin toss. The coin, which came up heads and decided Moses' direction in college, has led her on a sinuous path from studying lemurs in captivity to environmental writing, and back to lemurs, only this time tracking them in their natural habitat. Her recent research on ruffed lemurs is attracting attention for documenting the seed dispersal capabilities of Critically Endangered ruffed lemurs as well as theorizing connections between Madagascar's lemurs and the carbon storage capacity of its forests. Focusing on the black-and-white ruffed lemur's (Varecia variegata) ecological role as a seed disperser—animals that play a major role in spreading a plant's seeds far-and-wide—Moses suggests that not only do the lemurs disperse key tree species, but they could be instrumental in dispersing big species that store large amounts of carbon.
Photos: 208 species discovered in endangered Mekong region in 2010
(12/14/2011) Last year researchers scoured forests, rivers, wetlands, and islands in the vanishing ecosystems of the Mekong Delta to uncover an astounding 208 new species over a twelve month period. A new report by the World Wide Fund for Nature (WWF) highlights a number of the new species—from a new snub-nosed monkey to five new meat-eating pitcher plants to a an all-female, cloning lizard—while warning that many of them may soon be gone as the Mekong Delta suffers widespread deforestation, over-hunting and poaching, massive development projects, the destruction of mangroves, pollution, climate change, and a growing population.
Yasuni ITT: the virtues and vices of environmental innovation
(12/07/2011) As the 17th Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC) is taking place in Durban, Ecuador has embarked on the development of a project presented as highly innovative. This project targets Yasuni National Park, which has been protected since 1979. Yasuni is home to several indigenous peoples and is a biodiversity hotspot. But it so happens that the park also sits atop a vast oil field of 846 million barrels, representing about 20 percent of the country’s oil reserves. The acronym Yasuni ITT stands for Ishpingo-Tambococha-Tiputinin, which are the names of three potential zones for oil extraction.
Royal Society offers free special issue on rainforest conservation
(12/01/2011) For one month the Royal Society is offering a special theme issue of its Philosophical Transaction B journal on rainforest conservation for free. Entitled 'The future of Southeast Asian rainforests in a changing landscape and climate', the issue looks largely at studies conducted in Malaysian Borneo's Danum Valley. The issue includes a wide-range of studies, including comparing biodiversity in protected forests versus palm oil plantations, seed dispersal in fragmented forests, and in-depth looks at the chemistry of rainforests.
Photos: two dozen new beetles discovered in Papua New Guinea hotspot
(11/23/2011) Over the past two decades, at least 24 new beetles species have been discovered in a remote mountainous rainforest region of Papua New Guinea by Swedish entomologists Ulf Nylander. Described in the new book Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea, the new beetles found in the Aseki Province are all ecologically linked to rotting wood.
Civilization shifting: a new leaderless era
(11/15/2011) For well over a decade global change scientists have ushered calls for urgent alteration in what they refer to as the “Business-as-Usual (BAU) paradigm” to cope with the interlinking social, economic, and environmental issues of the 21st Century. In 2001, one of the world’s largest Earth Science collaborative organizations, the International Geosphere-Biosphere Program (IGBP), published their "A Planet Under Pressure" summary report for policy makers.
Unanimous agreement among scientists: Earth to suffer major loss in species
(11/09/2011) The thylacine, the dodo, the great auk, the passenger pigeon, the golden toad: these species have become symbols of extinction. But they are only the tip of the recent extinction crisis, and according to a survey of 583 conservation scientists, they are only the beginning. In a new survey in Conservation Biology, 99.5 percent of conservation scientists said a serious loss in biodiversity was either 'likely', 'very likely', or 'virtually certain'. The prediction of a significant loss of species is not surprising—scientists have been warning for decades that if global society continues with business as usual the world will suffer from mass extinction—what is perhaps surprising is the practically unanimous expectation that a global biodiversity decline will occur.
New site is a match-maker for world's endangered frogs
(11/03/2011) A new initiative by the conservation group, Amphibian Ark, hopes to match lonely, vanishing frogs with a prince/princess to to save them. Dubbed FrogMatchMaker.com after online dating sites, the program is working to connect supporters and donors with amphibian conservation programs in need. Currently, amphibians are among the world's most imperiled species with 41 percent threatened with extinction according to the IUCN Red list.
11 challenges facing 7 billion super-consumers
(10/31/2011) Perhaps the most disconcerting thing about Halloween this year is not the ghouls and goblins taking to the streets, but a baby born somewhere in the world. It's not the baby's or the parent's fault, of course, but this child will become a part of an artificial, but still important, milestone: according to the UN, the Earth's seventh billionth person will be born today. That's seven billion people who require, in the very least, freshwater, food, shelter, medicine, and education. In some parts of the world, they will also have a car, an iPod, a suburban house and yard, pets, computers, a lawn-mower, a microwave, and perhaps a swimming pool. Though rarely addressed directly in policy (and more often than not avoided in polite conversations), the issue of overpopulation is central to environmentally sustainability and human welfare.
If camera traps don't prove existence of Bigfoot or Yeti nothing will
(10/13/2011) Let me state for the record that I am skeptical of the existence of Bigfoot or the Yeti, however I do have a fascination for following the latest news on the seemingly never-ending search for these hidden hominids. This week a Yeti conference in Russia announced 'indisputable proof' of the legendary hairy ape in the wilds of Southern Siberia. What did this proof consist of? Not DNA, photographs, video, or the Yeti itself (dead or alive) as one would expect from the word 'indisputable', but a few alleged Yeti hairs, an alleged bed, and alleged footprints. Cryptozoologists, those who are fascinated by hidden species such as the proposed Yeti and Bigfoot, don't serve their cause by stating the reality of a species without the evidence long-deemed necessary by scientific community to prove it—either a body or DNA samples combined with clear photographic evidence—instead they make themselves easy targets of scorn and ridicule.
Five ways to feed billions without trashing the planet
(10/13/2011) At the end of this month the UN predicts global population will hit 7 billion people, having doubled from 3.5 billion in less than 50 years. Yet even as the Earth hits this new milestone, one billion people do not have enough food; meanwhile the rapid expansion of agriculture is one of the leading causes of global environmental degradation, including greenhouse gas emissions, destruction of forests, marine pollution, mass extinction, water scarcity, and soil degradation. So, how do we feed the human population—which continues to rise and is expected to hit nine billion by 2050—while preserving the multitude of ecosystem services that support global food production? A new study in Nature proposes a five-point plan to this dilemma.
UN calls for secure contraceptives as wildlife group hands out Endangered Species condoms
(10/06/2011) Sometime at the end of this month, the seventh billion person on Earth will be born: that's seven billions mouths to feed, seven billion throats to water, and seven billion bodies to keep warm. But the population continues to rise: experts believe the global human population could hit 10 billion by 2050. A UN meeting last month said that to meet the needs of the world's women, the developing world needs a secure supply of contraceptives and voluntary family planning initiatives.
Scientists find frog genes that provide immunity to extinction plague
(09/27/2011) Scientists with Cornell have discovered genetics that may provide immunity to frogs in face of the killer amphibian-disease chytridiomycosis. This plague, which is spreading to amphibian populations worldwide, is responsible for a number of frog species' recent extinction. But now researchers report in a new study in the Proceedings of the National Academy of Sciences (PNAS) that they are one step closer to understanding why some frog populations are able to fend off the disease, while others succumb with lightning-speed. In time, the results may lead to breeding strategies in captivity that could produce immune populations.
Controversial study finds intensive farming partnered with strict protected areas is best for biodiversity
(09/01/2011) Given that we have very likely entered an age of mass extinction—and human population continues to rise (not unrelated)—researchers are scrambling to determine the best methods to save the world's suffering species. In the midst of this debate, a new study in Science, which is bound to have detractors, has found that setting aside land for strict protection coupled with intensive farming is the best way to both preserve species and feed a growing human world. However, other researchers say the study is missing the point, both on global hunger and biodiversity.
World on the Edge: How to Prevent Environmental and Economic Collapse
(08/30/2011) World on the Edge: How to Prevent Environmental and Economic Collapse clearly describes in terms of national and social security how the looming current threat to our collective global future is not from catastrophic war as many describe in hindsight the 20th Century, rather from cataclysmic climate change, biodiversity loss, and water degradation.
Humanity knows less than 15 percent of the world's species
(08/23/2011) Scientists have named, cataloged, and described less than 2 million species in the past two and a half centuries, yet, according to an new innovative analysis, we are no-where near even a basic understanding of the diversity of life on this small blue planet. The study in PLoS Biology, which is likely to be controversial, predicts that there are 8.7 million species in the world, though the number could be as low as 7.4 or as high as 10 million. The research implies that about 86 percent of the world's species have still yet to be described.
Over 80 percent of rediscovered species still face extinction
(08/18/2011) Imagine if your job was to locate extinct species. In 2010, biologists with The Search for Lost Frogs set out on a tropical mission hoping to confirm the existence of frog species not seen in decades. The team recovered proof of four out of a hundred missing species, including a toad among the expedition's Top Ten Amphibians list. According to a new study study in the open access journal PLoS ONE, such biological surveys are critical conservation tools to prevent the 'romeo error': the abandonment of conservation efforts due to belief that a species is extinct. The study, the first of its kind, found that rediscovered species are especially in danger of vanishing again, this time altogether, without targeted conservation measures.
Cameratraps take global snapshot of declining tropical mammals
(08/17/2011) A groundbreaking cameratrap study has mapped the abundance, or lack thereof, of tropical mammal populations across seven countries in some of the world's most important rainforests. Undertaken by The Tropical Ecology Assessment and Monitoring Network (TEAM), the study found that habitat loss was having a critical impact on mammals. The study, which documented 105 mammals (nearly 2 percent of the world's known mammals) on three continents, also confirmed that mammals fared far better—both in diversity and abundance—in areas with continuous forest versus areas that had been degraded.
Lessons from the world's longest study of rainforest fragments
(08/15/2011) For over 30 years, hundreds of scientists have scoured eleven forest fragments in the Amazon seeking answers to big questions: how do forest fragments' species and microclimate differ from their intact relatives? Will rainforest fragments provide a safe haven for imperiled species or are they last stand for the living dead? Should conservation focus on saving forest fragments or is it more important to focus the fight on big tropical landscapes? Are forest fragments capable of regrowth and expansion? Can a forest—once cut-off—heal itself? Such questions are increasingly important as forest fragments—patches of forest that are separated from larger forest landscapes due to expanding agriculture, pasture, or fire—increase worldwide along with the human footprint.
The glass is half-full: conservation has made a difference
(08/11/2011) Don't despair: that's the message of a new paper in Trends in Ecology and Evolution, which argues that decades of conservation actions at multiple scales have had a positive impact for many of the world's endangered species. While such actions have not yet turned back the tide of the current mass extinction crisis, they have achieved notable successes which often get lost in the gloom-and-doom news stories on biodiversity declines. According to the paper, conservation actions take place on three scales. Microscale conservation focuses on a single species or ecosystem; mesoscale means conservation cooperation between a number of countries, such as efforts to curb the illegal wildlife trade or protect wide-ranging species; and finally macroscale means global organizations or campaigns, such as those that pressure multinational corporations to become more biodiversity-friendly.
Balancing agriculture and rainforest biodiversity in India’s Western Ghats
(08/08/2011) When one thinks of the world's great rainforests the Amazon, Congo, and the tropical forests of Southeast Asia and Indonesia usually come to mind. Rarely does India—home to over a billion people—make an appearance. But along India’s west coast lies one of the world's great tropical forests and biodiversity hotspots, the Western Ghats. However it's not just the explosion of life one finds in the Western Ghats that make it notable, it's also the forest's long—and ongoing—relationship to humans, lots of humans. Unlike many of the world's other great rainforests, the Western Ghats has long been a region of agriculture. This is one place in the world where elephants walk through tea fields and tigers migrate across betel nut plantations. While wildlife has survived alongside humans for centuries in the region, continuing development, population growth and intensification of agriculture are putting increased pressure on this always-precarious relationship. In a recent paper in Biological Conservation, four researchers examine how well agricultural landscapes support biodiversity conservation in one of India's most species-rich landscapes.
Protected areas not enough to save life on Earth
(08/03/2011) Since the creation of Yellowstone National Park in 1872 protected areas have spread across the world. Today, over 100,000 protected areas—national parks, wildlife refuges, game reserves, marine protected areas (MPAs), wildlife sanctuaries, etc.—cover some 7.3 million square miles (19 million kilometers), mostly on land, though conservation areas in the oceans are spreading. While there are a number of reasons behind the establishment of protected areas, one of the most important is the conservation of wildlife for future generations. But now a new open access study in Marine Ecology Progress Series has found that protected areas are not enough to stem the loss of global biodiversity. Even with the volume of protected areas, many scientists say we are in the midst of a mass extinction with extinction levels jumping to 100 to 10,000 times the average rate over the past 500 million years. While protected areas are important, the study argues that society must deal with the underlying problems of human population and overconsumption if we are to have any chance of preserving life on Earth—and leaving a recognizable planet for our children.
WWF partnering with companies that destroy rainforests, threaten endangered species
(07/25/2011) Arguably the globe's most well-known conservation organization, the World Wide Fund for Nature (WWF), has been facilitating illegal logging, vast deforestation, and human rights abuses by pairing up with notorious logging companies in a flagging effort to convert them to greener practices, alleges a new report by Global Witness. Through its program, the Global Forest and Trade Network (GFTN), WWF—known as World Wildlife Fund in the US and Canada—has become entangled with some dubious companies, including one that is imperiling orangutans in Borneo and another which has been accused of human rights abuses in the Congo rainforest. Even with such infractions, these companies are still able to tout connections to WWF and use its popular panda logo. The Global Witness report, entitled Pandering to the Loggers, calls for WWF to make large-scale changes in order to save the credibility of its corporate program.
Decline in top predators and megafauna 'humankind’s most pervasive influence on nature'
(07/14/2011) Worldwide wolf populations have dropped around 99 percent from historic populations. Lion populations have fallen from 450,000 to 20,000 in 50 years. Three subspecies of tiger went extinct in the 20th Century. Overfishing and finning has cut some shark populations down by 90 percent in just a few decades. Though humpback whales have rebounded since whaling was banned, they are still far from historic numbers. While some humans have mourned such statistics as an aesthetic loss, scientists now say these declines have a far greater impact on humans than just the vanishing of iconic animals. The almost wholesale destruction of top predators—such as sharks, wolves, and big cats—has drastically altered the world's ecosystems, according to a new review study in Science. Although researchers have long known that the decline of animals at the top of food chain, including big herbivores and omnivores, affects ecosystems through what is known as 'trophic cascade', studies over the past few decades are only beginning to reveal the extent to which these animals maintain healthy environments, preserve biodiversity, and improve nature's productivity.
First ever picture of long lost rainbow toad
(07/13/2011) Scientists are elated after the surprise rediscovery of a wildly-colored frog not seen for 87 years and never before photographed—until now. The Bornean rainbow toad, also known as the Sambas Stream toad (Ansonia latidisca) was rediscovered on Borneo in the Malaysian state of Sarawak by local scientists inspired by a 2010 search for the world's missing amphibians by Conservation International (CI). Leading up to its search CI released the World's Top 10 Most Wanted Lost Frogs (out of a hundred being searched for): the Bornean rainbow toad was listed as number 10.
Climate change to push over 10 percent of the world's species to extinction by 2100
(07/11/2011) Scientists have predicted for decades that climate change could have a grave impact on life on Earth, which is already facing numerous threats from habitat loss, over-exploitation, pollution, invasive species, and other impacts. However, empirical proof of extinctions--and even endangerment--due to climate change have been difficult to come by. A new study in the Proceeding of the National Academy of Science has found that by the time today's infants are 90 years old (i.e. the year 2100) climate change could have pushed over 11 percent of the world's species to extinction.
Ocean prognosis: mass extinction
(06/20/2011) Multiple and converging human impacts on the world's oceans are putting marine species at risk of a mass extinction not seen for millions of years, according to a panel of oceanic experts. The bleak assessment finds that the world's oceans are in a significantly worse state than has been widely recognized, although past reports of this nature have hardly been uplifting. The panel, organized by the International Program on the State of the Ocean (IPSO), found that overfishing, pollution, and climate change are synergistically pummeling oceanic ecosystems in ways not seen during human history. Still, the scientists believe that there is time to turn things around if society recognizes the need to change.
Over 900 species added to endangered list during past year
(06/16/2011) The past twelve months have seen 914 species added to the threatened list by the world's authority of species endangerment, the International Union for the Conservation of Nature (IUCN)'s Red List. Over 19,000 species are now classified in one of three threatened categories, i.e. Vulnerable, Endangered, and Critically Endangered, a jump of 8,219 species since 2000. Species are added to the threatened list for a variety of reasons: for many this year was the first time they were evaluated, for others new information was discovered about their plight, and for some their situation in the wild simply deteriorated. While scientists have described nearly 2 million species, the IUCN Red List has evaluated only around 3 percent of these.
Amphibian-plague strikes frogs harder in pristine ecosystems
(05/31/2011) Frog populations worldwide are facing two apocalypses: habitat destruction and a lethal plague, known as chytridiomycosis. Over 30 percent of the world's amphibians are currently threatened with extinction and it is thought at least 120 species have gone extinct in just the last 30 years. Unfortunately, a new study in Proceedings of the National Academy of Sciences (PNAS) finds that the two threats—habitat loss and chytridiomycosis—are likely to leave no frog population undisturbed. According to the study, frogs that live in still-pristine habitats are more susceptible to chytridiomycosis than those that are already suffering from habitat loss.
New paper stirs up controversy over how scientists estimate extinction rates
(05/19/2011) A new paper in Nature negating how scientists estimate extinction rates has struck a nerve across the scientific community. The new paper clearly states that a mass extinction crisis is underway, however it argues that due to an incorrect method of determining extinction rates the crisis isn't as severe as has been reported. But other experts in the field contacted disagree, telling mongabay.com that the new the paper is 'plain wrong'. In fact, a number of well-known researchers are currently drafting a response to the day-old, but controversial paper.
3,000 amphibians, 160 land mammals remain undiscovered—that is if they don't go extinct first
(05/18/2011) Remote little-explored rainforests probably harbor the majority of undiscovered amphibians and land mammals according to a new study in Proceedings of the Royal Society B. The study calculated that it's likely 33% of the world's amphibians and 3% of terrestrial mammals still remain unknown. However, the paper also found that these undiscovered species are likely in worse peril of extinction than already-described species.
Cambodia's wildlife pioneer: saving species and places in Southeast Asia's last forest
(05/11/2011) Suwanna Gauntlett has dedicated her life to protecting rainforests and wildlife in some of the world’s most hostile and rugged environments and has set the trend of a new generation of direct action conservationists. She has designed, implemented, and supported bold, front-line conservation programs to save endangered wildlife populations from the brink of extinction, including saving the Amur Tiger (also known as the Siberian Tiger) from extinction in the 1990s in the Russian Far East, when only about 80 individuals remained and reversing the drastic decline of Olive Ridley sea turtles along the coast of Orissa, India in the 1990s, when annual nestings had declined from 600,000 to a mere 8,130. When she first arrived in Cambodia in the late 1990s, its forests were silent. 'You couldn’t hear any birds, you couldn’t hear any wildlife and you could hardly see any signs of wildlife because of the destruction,' Gauntlett said. Wildlife was being sold everywhere, in restaurants, on the street, and even her local beauty parlor had a bear.
Save the Frogs Day focuses on banning Atrazine in US
(04/26/2011) This year's Save the Frogs Day (Friday, April 29th) is focusing on a campaign to ban the herbicide Atrazine in the US with a rally at the steps of the Environmental Protection Agency (EPA). Kerry Kriger, executive director of frog-focused NGO Save the Frogs! and creator of Save the Frogs Day, says that Atrazine is an important target in the attempt to save amphibians worldwide, which are currently facing extinction rates that are estimated at 200 times the average. "Atrazine weakens amphibians' immune systems, and can cause hermaphroditism and complete sex reversal in male frogs at concentrations as low as 2.5 parts per billion," Kriger told mongabay.com.
From the Serengeti to Lake Natron: is the Tanzanian government aiming to destroy its wildlife and lands?
(04/14/2011) What's happening in Tanzania? This is a question making the rounds in conservation and environmental circles. Why is a nation that has so much invested in its wild lands and wild animals willing to pursue projects that appear destined not only to wreak havoc on the East African nation's world-famous wildlife and ecosystems, but to cripple its economically-important tourism industry? The most well known example is the proposed road bisecting Serengeti National Park, which scientists, conservationists, the UN, and foreign governments alike have condemned. But there are other concerns among conservationists, including the fast-tracking of soda ash mining in East Africa's most important breeding ground for millions of lesser flamingo, and the recent announcement to nullify an application for UNESCO Heritage Status for a portion of Tanzania's Eastern Arc Mountains, a threatened forest rich in species found no-where else. According to President Jakaya Kikwete, Tanzania is simply trying to provide for its poorest citizens (such as communities near the Serengeti and the Eastern Arc Mountains) while pursuing western-style industrial development.
New method to measure threat of extinction could help conservationists prioritize
(04/07/2011) Researchers have developed a new method to predict how close species are to extinction. Dubbed SAFE (Species Ability to Forestall Extinction) the researchers believe the new tool, published in the Frontiers in Ecology and Environment, should help conservationists select which species to focus on saving and which, perhaps controversially, should be let go.
More biodiversity equals cleaner water, but why?
(04/07/2011) A new landmark study not only proves that adding more species to a freshwater stream linearly increases the ecosystem's ability to clean pollutants, but also shows why. The study, published in Nature found that by increasing the biodiversity of a lab controlled mini-stream from one algae species to eight caused the ecosystem to soak up nitrate pollution 4.5 times faster on average. To conduct the experiment, researchers used plastic to create 150 mini model streams. Molding the plastic, they recreated real stream-like habitats such as pools, runs, and eddies. Different species of algae gravitated toward particular mini-habitats, creating special ecological niches and allowing more of the stream to be utilized by the algae for soaking up the nitrate pollution. Less utilization of the available habitats resulted in a dirtier river and vice-versa.
The value of the little guy, an interview with Tyler Prize-winning entomologist May Berenbaum
(04/06/2011) May Berenbaum knows a thing or two about insects: in recognition of her lifelong work on the interactions between insects and plants, she has had a character on The X-Files named after her, received the Public Understanding of Science and Technology Award for her work in making science accessible to the public, and this year has been awarded the prestigious Tyler Environmental Prize. "Winning the Tyler Prize is an incredible honor—most of my scientific heroes have been Tyler Prize winners and I’m exceedingly grateful to be considered worthy of being included among their ranks," Berenbaum told mongabay.com in an interview. "The Prize is also tremendously enabling—because the money is unrestricted I can use it to carry out projects that have been difficult to fund."
Goodbye national parks: when 'eternal' protected areas come under attack
(03/17/2011) One of the major tenets behind the creation of a national park, or other protected area, is that it will not fade, but remain in essence beyond the pressures of human society, enjoyed by current generations while being preserved for future ones. The protected area is a gift, in a way, handed from one wise generation to the next. However, in the real world, dominated by short-term thinking, government protected areas are not 'inalienable', as Abraham Lincoln dubbed one of the first; but face being shrunk, losing legal protection, or in some cases abolished altogether. A first of its kind study, published in Conservation Letters, recorded 89 instances in 27 countries of protected areas being downsized (shrunk), downgraded (decrease in legal protections), and degazetted (abolished) since 1900. Referred to by the authors as PADDD (protected areas downgraded, downsized, or degazetted), the trend has been little studied despite its large impact on conservation efforts.
15 conservation issues to watch
(03/14/2011) Deforestation, oil spills, coral acidification: these are just a few examples of ongoing, and well-researched, environmental changes that are imperiling the world's biodiversity. But what issues are on the horizon? At the end of 2010, experts outlined in Trends in Ecology & Evolution 15 issues that may impact conservation efforts this year and beyond, but are not yet widely known. These are issues you may never hear about it again or could dominate tomorrow's environmental headlines. "Our aim was to identify technological advances, environmental changes, novel ecological interactions and changes in society that could have substantial impacts on the conservation of biological diversity […] whether beneficial or detrimental," the authors write in the paper. Experts originally came up with 71 possible issues and then whittled it down to the 15 most important—and least known.
Rich plant diversity leads to increased productivity, ecosystem services
(03/08/2011) A new study finds that diversity of plant species matters—big time. Analyzing nearly 600 research studies, the meta-study in the American Journal of Botany found that productivity in biodiverse plant ecosystems was 1.5 times higher than in monocultures. In other words, a prairie is more productive than a cornfield and forest more productive than a rubber plantation. The researchers warn that eroding plant diversity threatens essential ecosystems services such as food, water purification, oxygen production, carbon sequestration, and the availability of raw materials.
World's sixth mass extinction still preventable
(03/03/2011) So, here's the good news: a mass extinction, the world's sixth, is still preventable. But the bad news: if species currently threatened with extinction vanish—even over the next thousand years—homo-sapiens will be the first single species responsible for a mass extinction. Comparing today's current extinction crisis with the big five that occurred in the past, a new study in Nature finds that while the situation is dire, the choice is ultimately up to humanity. "If you look only at the critically endangered mammals—those where the risk of extinction is at least 50 percent within three of their generations—and assume that their time will run out, and they will be extinct in 1,000 years, that puts us clearly outside any range of normal, and tells us that we are moving into the mass extinction realm," explains lead author Anthony D. Barnosky, UC Berkeley professor of integrative biology.
Parks key to saving India's great mammals from extinction
(02/24/2011) Krithi Karanth grew up amid India's great mammals—literally. Daughter of conservationist and scientist Dr. Ullas Karanth, she tells mongabay.com that she saw her first wild tigers and leopard at the age of two. Yet, the India Krithi Karanth grew up in may be gone in a century, according to a massive new study by Karanth which looked at the likelihood of extinction for 25 of India's mammals, including well-known favorites like Bengal tigers and Asian elephants, along with lesser known mammals (at least outside of India) such as the nilgai and the gaur. The study found that given habitat loss over the past century, extinction stalked seven of India's mammals especially: Asiatic lions, Bengal tigers, wild dogs (also known as dholes), swamp deer, wild buffalo, Nilgiri Tahr, and the gaur. However, increasing support of protected areas and innovative conservation programs outside of parks would be key to saving India's wildlife in the 21st Century.
Top 25 most endangered turtles: Asian species in crisis
(02/23/2011) Surviving hundreds of millions of years on Earth have not saved turtles from facing extinction at human hands. A new report by the Wildlife Conservation Society (WCS) and the Turtle Conservation Coalition, identifies the world's 25 most imperiled turtles, including one that is practically assured extinction: 'Lonesome George' the last Abdington Island tortoise in the world. The list includes four turtle species from South and Central America, three from Africa, and one from Australia. But Asia is the hotbed for turtles in trouble with 17 of the top 25 species, or 68%. The numbers are even more alarming if one looks only at the top ten: eight of the top ten are in Asia, and six of these in China.
Worldwide search for 'lost frogs' ends with 4% success, but some surprises
(02/16/2011) Last August, a group of conservation agencies launched the Search for Lost Frogs, which employed 126 researchers to scour 21 countries for 100 amphibian species, some of which have not been seen for decades. After five months, expeditions found 4 amphibians out of the 100 targets, highlighting the likelihood that most of the remaining species are in fact extinct; however the global expedition also uncovered some happy surprises. Amphibians have been devastated over the last few decades; highly sensitive to environmental impacts, species have been hard hit by deforestation, habitat loss, pollution, agricultural chemicals, overexploitation for food, climate change, and a devastating fungal disease, chytridiomycosis. Researchers say that in the past 30 years, its likely 120 amphibians have been lost forever.
The ocean crisis: hope in troubled waters, an interview with Carl Safina
(02/07/2011) Being compared—by more than one reviewer—to Henry Thoreau and Rachel Carson would make any nature writer's day. But add in effusive reviews that compare one to a jazz musician, Ernest Hemingway, and Charles Darwin, and you have a sense of the praise heaped on Carl Safina for his newest work, The View from Lazy Point: A Natural Year in an Unnatural World. Like Safina's other books, The View from Lazy Point focuses on the beauty, poetry, and crisis of the world's oceans and its hundreds-of-thousands of unique inhabitants. Taking the reader on a journey around the world—the Arctic, Antarctic, and the tropics—Safina always returns home to take in the view, and write about the wildlife of his home, i.e. Lazy Point, on Long Island. While Safina's newest book addresses the many ways in which the ocean is being degraded, depleted, and ultimately imperiled as a living ecosystem (such as overfishing and climate change) it also tweezes out stories of hope by focusing on how single animals survive, and in turn how nature survives in an increasingly human world. However, what makes Safina's work different than most nature writing is his ability to move seamlessly from contemporary practical problems to the age-old philosophical underpinnings that got us here. By doing so, he points a way forward.
Paradise & Paradox: a semester in Ecuador
(02/02/2011) A semester abroad is an opportunity to live a sort of compacted life. In a few short months you seem to gain the experience of a much longer time and make enough memories to fill years. I recall a weeklong trip to the Alvord Desert with a field biology class from Portland Community College: the adventure of living out of a van, conducting research, and experiencing a place with classmates turned colleagues and professors turned friends who knew the desert like the backs of their hands. In that regard, it had a lot in common with my semester in Ecuador, but I can't think of anything that could have prepared me for a four month stay in a small South American country that I knew very little about.
From Cambodia to California: the world's top 10 most threatened forests
(02/02/2011) Growing populations, expanding agriculture, commodities such as palm oil and paper, logging, urban sprawl, mining, and other human impacts have pushed many of the world's great forests to the brink. Yet scientists, environmentalists, and even some policymakers increasingly warn that forests are worth more standing than felled. They argue that by safeguarding vulnerable biodiversity, sequestering carbon, controlling erosion, and providing fresh water, forests provide services to humanity, not to mention the unquantifiable importance of having wild places in an increasingly human-modified world. Still, the decline of the world's forests continues: the FAO estimating that around 10 million hectares of tropical forest are lost every year. Of course, some of these forests are more imperiled than others, and a new analysis by Conservation International (CI) has catalogued the world's 10 most threatened forests.
Study: REDD could save species from extinction, if well-funded
(12/01/2010) The burgeoning global program REDD+ (Reduced Emissions from Deforestation and Forest Degradation) could do more than mitigate climate change, according to a new study in Conservation Letters by scientists with Conservation International (CI). Analyzing a sample of 2,500 forest animals, including mammals, birds and amphibians, researchers found that REDD+ could reduce the rate of extinction among these species by 46-82% over five years. The wide range in the study's findings depends on the amount of funds devoted to REDD+: more funds means greater forest preservation and, thereby, less extinction.
Earth could see 4 degrees Celsius warming in less than a lifetime
(11/29/2010) By the time children born this year reach 50 years old, the Earth could be 4 degrees Celsius warmer (7.2 degrees Fahrenheit) warns a new study as governments meet in Cancun for this year's UN climate summit, which is not expected to produce an agreement. Last year governments pledged in the non-binding Copenhagen Accord to keep temperatures below a 2 degree Celsius rise, but a new study in Philosophical Transactions of the Royal Society A argues that even with current promises to cut emissions this is unlikely and, in a worst-case scenario, a rise of 4 degrees Celsius is possible by 2060.
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