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News articles on tropical conservation science
Mongabay.com news articles on tropical conservation science in blog format. Updated regularly.
(03/18/2013) The Peruvian night monkey (Aotus miconax) is one of the world's least known primates, having never been studied in the wild--until now. Found only in the cloud forests of northern Peru, a group of scientists with Neotropical Primate Conservation and the National University of Mayor San Marcos have spent 12 months following a single group of this enigmatic monkey species in a small forest patch. The results of their research, published in mongabay.com's open access journal Tropical Conservation Science, shows that protecting forests, even small forest fragments, is vital to the species' survival.
Scientists successfully freeze Barbary sheep embryos for conservation purposes
(03/18/2013) The Barbary sheep (Ammotragus lervia), or aoudad, is a goat-antelope found in northern Africa. It is currently listed as Vulnerable by the IUCN Red List, with populations imperiled by hunting, habitat loss, and competition with livestock. Still little is known about its remaining population, prompting scientists in Mexico to test possible assisted reproduction of captive individuals.
Deer populations hurt by poaching in Mexican dry forest
(03/18/2013) White-tailed deer are usually thought of as inhabiting temperate forests in the U.S. and Canada, but this widespread species can also be found across tropical forests, from Mexico to Peru. A new study in mongabay.com's open access journal Tropical Conservation Science investigates the population of white-tailed deer (Odocoileus virginianus) in Mexico's Tehuacan-Cuicatlan Biosphere Reserve (TCBR), and finds that poaching may be having a large impact.
Invasive plants hurt locals in Mauritius
(03/18/2013) Native species on the island of Mauritius have long had to deal with invasive species. In fact, invasives likely played a major role in the extinction of the Mauritius' most famous resident, the dodo. While scientists have long cataloged the impact of invasive animals on island wildlife, there has been less clarity when it comes to invasive plants. However, a new paper in mongabay.com's open access journal Tropical Conservation has found that invasive plants do indeed negatively impact local species.
Forgotten lions: shedding light on the fate of lions in unprotected areas
(03/18/2013) African lions (Panthera leo) living outside of protected areas like national parks or reserves also happen to be studied much less than those residing within protected areas, to the detriment of lion conservation initiatives. In response to this trend, a group of researchers surveyed an understudied, unprotected region in northwestern Mozambique called the Tete Province, whose geography and proximity to two national parks suggests a presence of lions.
Scientists successfully reintroduce gaur in Indian park
(03/18/2013) Gaur (Bos gaurus gaurus) is one of the large wild ungulates of Asian jungles. It is the tallest living ox, and one of the four heaviest land mammals (elephant, rhino and wild buffalo are the other three), weighing up to 940 kilograms (2,070 pounds) and standing between 1.6 and 1.9 meters (5.2 to 6.2 feet) at the shoulder. Gaur were once distributed throughout the forested tracts of India and South Nepal, east to Vietnam and south to Malaya. Today, however, they are confined to just over a hundred existing, and 27 proposed, Protected Areas in India.
Heavy metal shark meat: dangerous lead levels found in sharks used as fish food
(03/18/2013) A recent study published in mongabay.com’s open access journal Tropical Conservation Science raises concerns about levels of heavy metals, particularly lead (Pb), present in shark meat, as well as the decline of shark abundance due to global fishing pressures. Sharks are primarily caught as by-catch for other fishing industries. By one account, 70% of the total catch in swordfish long-line fisheries was sharks. Due to consumer demand, this by-catch is sold to Asian fish markets as fin and trunk meat. Much of the trunk and organ meat is used to make fish-meal, which is then fed to farmed fish.
Innovative idea: wildlife income may help people withstand drought in Africa
(03/18/2013) Getting local people to become invested in wildlife conservation is not always easy, especially in parts of the world where protected areas are seen as taking away natural resources from local communities. This tension lies around Gonarezhou National Park in Zimbabwe, where a growing population of livestock herders competes with wildlife.
Logging studies plagued by sampling problems
(03/18/2013) Although research into the impact of selective logging in tropical forests has been booming recently, much of it is undercut by basic research flaws, according to a new study in mongabay.com's open access journal Tropical Conservation Science. Selective logging means targeting certain species or only a particular number of trees per hectare, and as such is considered generally more environmentally-friendly than clearcutting, which strips entire forests.
Deforestation in key Madagascar park accelerated after 2009 coup d'etat, finds satellite analysis
(03/18/2013) Deforestation and forest disturbance in Madagascar's largest national park increased significantly less than a year after a coup displaced the country's democratically-elected president in 2009, finds a new study that analyzed forest cover in Masoala National Park.
Selective logging changes character of tropical forest
(02/28/2013) Selective logging is usually considered less harmful than other forestry practices, such as clear cutting, but a new study in mongabay.com's open access journal Tropical Conservation Science has found that even selective logging has a major impact on tropical forests lasting decades. Comparing trees in two previously logged sites and two unlogged sites in northeast India, researchers found less tree diversity in selectively logged forests with trees dispersed by birds proved especially hard-hit.
Poaching in Serengeti seems worth the risk
(12/10/2012) Illegal hunting in Tanzania's Greater Serengeti Ecosystem (GSE) remains a prevalent activity for local people, despite government regulation and grassroots movements to prevent it. A new paper from mongabay.com's open-access Tropical Conversation Science examines the factors that drive poachers to continue their activities, despite the high costs involved. By interviewing citizens involved with illegal hunting in the Western part of the Serengeti, they were able to identify key risks that are faced by the hunters as well as the perceived gains of a successful hunt.
Recovery of Atlantic Forest depends on land-use histories
(12/10/2012) The intensity of land-use influences the speed of regeneration in tropical rainforests, says new research. Tropical rainforests are a priority for biodiversity conservation; they are hotspots of endemism but also some of the most threatened global habitats. The Atlantic Forest stands out among tropical rainforests, hosting an estimated 8,000 species of endemic plants and more than 650 endemic vertebrates. However, only around 11 percent of these forests now remain.
New inroads made into bushmeat consumption in Tanzania
(12/10/2012) Bushmeat consumption, or "wildlife hunted for human consumption," poses a significant threat to wildlife conservation all across the globe. But in Eastern Africa—where savannah grasslands flourish and big game roam free within 'protected' reserves—one may be forgiven to think that poaching does not occur here: but it does.
REDD+ should pave way for more research into genetic studies of tropical species
(12/10/2012) Reducing Emissions from Deforestation and Degradation (REDD+), the UN program to conserve tropical forests by paying developing nations to keep them standing, should go hand-in-hand with increased genetic studies of imperiled tropical biodiversity, according to a new opinion article in mongabay.com's open access journal Tropical Conversation Science.
Vanishing corridors: trying to keep big animals on the move across Tanzania
(12/10/2012) One of the biggest challenges for big African wildlife like lions, elephants, and buffalo is movement across native habitat that is increasingly being encroached on by humans. Animals find their movement restricted by roads, fences, and property boundaries which fragment the landscape. Without safe, smart, and well-maintained corridors between designated wildlife areas, animals can get cut off from resources needed for survival and from potential mates (putting genetic health at risk), even while conflicts with humans become more frequent.
Measuring nutrient pollution in pristine waters: Puerto Rico's Vieques Island
(12/10/2012) Life in the ocean require nutrient, but too much of a good thing can be hugely detrimental. Nutrient pollution from agricultural and industrial runoff causes serious ecological harm in the world's marine waters, at times producing massive "dead zones" where much of the dissolved oxygen has been stripped making it difficult for most marine animals to live there. A new study by scientists with the U.S. National Oceanic and Atmospheric Administration (NOAA) attempts to establish a baseline of nutrient levels in the largely pristine waters around the island of Vieques off of Puerto Rico.
A new method to monitor stray dog abundance
(12/10/2012) Free-roaming dogs (Canis familiaris) can fill a variety of ecological roles including competitor, predator, prey, and transmitter of disease to both wildlife and people with particular concern for rabies. A range of methods has been used to control dog populations, but monitoring dogs is a critical part of assessing the effectiveness of these methods.
Wildlife trade bans may be worsening trafficking of some species, argues paper
(09/18/2012) While founded with good intentions, wildlife trade bans may in some cases be worsening the plight of some endangered species, argues a commentary published in the journal Tropical Conservation Science.
Method to estimate primate abundance falls short
(09/17/2012) Counting wildlife may sound straight-forward, but achieving accurate estimates has plagued scientists for centuries, especially in difficult and dense environments like rainforest. Recently, one method to estimate leaf-eating primates was to look at leaf quality in a particular habitat, particularly the ratio of protein to fiber in leaves. However, a new study in mongabay.com's open access journal Tropical Conservation Science adds to growing concerns regarding this model by finding that it doesn't accurately predict abundance of red colobus (Procolobus rufomitratus) in Uganda's Kibale National Park.
Turtle knowledge in Africa shows significant gaps
(09/17/2012) Sometimes turtles fall through the cracks: a new study in the open access journal Tropical Conservation Science, has uncovered a number of 'gap species' in the turtle families inhabiting Africa. 'Gap species' are those that are recorded in one country or another, but not in adjacent countries which could be due to a lack of data, a change in ecosystems, or human impacts.
Bushmeat consumption differs between communities in Tanzania
(09/17/2012) Bushmeat consumption depends on the make-up of individual communities, according to a new study in the open access journal Tropical Conservation Science. By interviewing indigenous groups and refugees living near two protected areas in western Tanzania, researchers found that consumption rates differed significantly, likely based on costliness and access.
Wax palm can be sustainably harvested
(09/17/2012) The wax palm can be harvested sustainably with just a few management restrictions, according to a new study in mongabay.com's open access journal Tropical Conservation Science (TCS). Found only in the Peruvian and Ecuadorian Andes, the leaves of the wax palm (Ceroxylon echinulatum) are used to make Easter handicrafts. But the practice has caused fears that the species, which is currently categorized as Vulnerable by the IUCN Red List, is being overexploited.
Rare birds abound in Brazil's Acre state
(09/17/2012) The Brazilian state of Acre has had little attention by bird-lovers and bird scientists, though it lies deep in the Amazonian rainforest. Now a new survey in mongabay.com's open access journal Tropical Conservation Science by ornithologist, John J. DeLuca, works to build a better picture of rare birds in this largely-neglected region. The work is all the more important as the Brazil-Peru Interoceanic Highway could bring massive changes to the region.
Buffer zones key to survival of maned wolf
(09/17/2012) Known for its abnormally long lanky legs, its reddish-orange coat, and its omnivorous diet, the maned wolf (Chrysocyon brachyurus) is one of the more beautiful and bizarre predators of South America. However its stronghold, the Brazilian Cerrado, is vanishing rapidly to industrialized agriculture and urban development. Now, a new study in mongabay.com's open access journal Tropical Conservation Science reveals the key role of buffer zones and unprotected areas in keeping the maned wolf from extinction in the Cerrado savannah, where only 2 percent of the ecosystem is under protection.
Rodents have lowest diversity in primary forests in the Congo
(09/17/2012) For many animal families, diversity and abundance rises as one moves away from human-impacted landscapes, like agricultural areas, into untouched places, such as primary rainforests. However, a new study in mongabay.com's open access journal Tropical Conservation Science, shows that the inverse can also be true. In this case, scientists working in the Democratic Republic of Congo's (DRC) Maskao Forest found that both rodent diversity and abundance was lowest in primary forest.
Extremely rare plant region left unprotected in the Yucatan Peninsula
(09/17/2012) For the first time, scientists have identified the areas of the Yucatan Peninsula that hold the highest concentrations of endangered woody plants, which includes trees, shrubs, and lianas. In doing so they uncovered four key regions, but also noted that the region with the highest concentration of extremely rare plants was left unprotected, according to a new paper in mongabay.com's open access journal Tropical Conservation Science.
Over 80 species targeted by hunters in Brazil's northeast
(09/17/2012) A new survey of hunting in Brazil's northeastern state of Paraíba, finds that hunters target, often illegally over 80 species for food, the pet trade, medicine, leather, fur, and ornaments. Over half of the species, mainly birds and mammals, are targeted for food, according to the research published in mongabay.com's open access journal Tropical Conservation Science.
Predicting the distribution of tropical dung beetles
(07/09/2012) Although they live in almost every ecosystem in the world—from your backyard to the Antarctic—scientists know very little about many insect species, including many individual species' distribution. A new study in mongabay.com's open-access journal Tropical Conservation Science attempts to predict the range of 53 dung beetle species in the genus Eurysternus, all of which are found in the American tropics. Dung beetles are hugely important to their environments, since they efficiently devour and recycle waste.
Poaching in the Serengeti linked to poverty, high legal hunting prices
(07/09/2012) In the effort to protect the Serengeti—arguably Africa's most famous ecosystem—one of the major problems is the bushmeat trade. Population growth, little available protein, poverty, and a long-standing history of hunting has led many communities to poach wildlife within Serengeti National Park. Interviewing over a thousand community members in the western Serengeti, scientists found that community members are largely aware that wildlife hunting is illegal and that conservation of wild species is important, but hunt animals anyway partly out of necessity.
Making reforestation work in abandoned pasturelands
(07/09/2012) Tropical reforestation is not easy, especially in abandoned pasturelands. But a new study in mongabay.com's open access journal Tropical Conservation Science finds that removing grasses prior to and after planting native tree seeds significantly improves the chances of forests to take root. The study site, located in Mexico's Lacandon rainforest, was covered in an invasive African grass (Cynodon plectostachyus).
Poaching results in elephant gender imbalance in Indian park
(07/09/2012) Scientists have undertaken a new census of Asian elephants (Elephas maximus) in India's Biligiri Rangaswamy Temple Tiger Reserve (BRT) following almost 30 years of sustained poaching. Estimating that the park contains four female elephants for every male, the scientists warn in a new study in mongabay.com's open access journal Tropical Conservation Science that this gender imbalance threatens the population. Poachers target male Asian elephants for their tusks, generally leaving females untouched.
Critically Endangered capuchins discovered in four new locations
(07/09/2012) The Ecuadorian capuchin, a Critically Endangered subspecies of the white-fronted capuchin (Cebus albifrons), has been discovered in four new locations according to a new study in mongabay.com's open access journal Tropical Conservation Science. Found only in Ecuador and northern Peru, the scientists say the monkey may be unique enough to warrant consideration as a distinct species.
Tracking elephants in Cameroon to mitigate conflict with locals
(07/09/2012) Elephant conservation is imperiled by poor spatial planning, according to a new study in mongabay.com's open access journal Tropical Conservation Science. Tracking two elephant matriarchs in and around Bénoué National Park in Cameroon, scientists found that the herds spent over half their time outside of the park, highlighting the potential for human-wildlife conflict as elephants are known to raid fields.
Bad science journalism: articles spread misinformation about whale sharks
(07/09/2012) The death of one of the world's largest recorded whale sharks (Rhincodon typus) in the Arabian Sea provoked a sudden global interest in these massive shark. Weighing 14.5 tons, the fish in question made 'whale shark 'whale shark' the number 3 top search in Google Trends on the day the news hit. But, according to a new study in mongabay.com's open access journal Tropical Conservation Science, more than half the reports filed by journalists were "factually wrong."
Endangered fruit bats, and many other species, on the menu in the Philippines
(07/09/2012) Bushmeat hunting is well-known to be decimating animal populations in Africa, but has been little studied much of Southeast Asia. However, a new paper in mongabay.com's open access journal Tropical Conservation Science shines light on the size and scale of bushmeat poaching in the Philippines. Studying an anonymous community near a national park on the island of Luzon, researchers found that poachers targeted 22 species, ten of which are considered either threatened or near threatened with extinction by the IUCN Red List.
Invasive primates threaten Atlantic Forest natives
(03/19/2012) Scientists have called for the removal of eight invasive primates from Brazil's imperiled Atlantic Forest in a new study published in mongabay.com's open access journal Tropical Conservation Society. The researchers fear that the eight alien monkeys could hurt other species due to increased competition, predation, and possible disease.
Solitary male monkeys cause crop damage in Uganda
(03/19/2012) Solitary male red-tailed monkeys (Cercopithecus ascanius) cause significant damage to cocoa crops in Uganda, according to a new study in mongabay.com's open access journal Tropical Conservation Society (TCS). Researchers examined crop raiding by social groups of red-tailed monkeys and lone males, only to discover that solitary males caused significantly more damage to cocoa crops than the average group member. The research may have implications for how to mitigate human-wildlife conflict in the area.
Chimp conservation requires protecting fragmented river forests in Uganda
(03/19/2012) Forest fragments along riversides in Uganda may make good habitats for chimpanzees but remain unprotected, according to a new study in mongabay.com's open access journal Tropical Conservation Society (TCS). Researchers surveyed a riverine forest known as Bulindi in Uganda, in-between Budongo and Bugoma Forest Reserves, to determine if it was suitable for the long-term survival of eastern chimpanzee (Pan troglodytes schweinfurthii) populations.
How tiny otters survive in agricultural India
(03/19/2012) In the fragmented rainforests of India, many animals must move through human-modified landscapes such as agricultural fields to survive. This includes the world's smallest otter species: the Asian small-clawed otter (Aonyx cinereus). According to a new study published in mongabay.com's open access journal Tropical Conservation Society, the Asian small-clawed otter is widespread in streams flowing through tea and coffee estates of the Western Ghats, but requires improved protection.
Wildlife corridor key to conserving tigers, rhinos in Nepal
(03/19/2012) A single forest corridor links two of Nepal's great wildlife areas: Chitwan National Park and the Mahabharat mountain range, also known as the "little Himalayas." The Barandabhar Forest Corridor (BFC) has become essential for the long term survival Nepal's Indian rhinos (Rhinoceros unicornis) and Bengal tigers (Panthera tigris tigris). Yet, according to a new paper published in mongabay.com's open access journal Tropical Conservation Society (TCS), the corridor is imperiled by deforestation, a highway, and inconsistent management policies.
Airborne lasers discover undocumented deforestation in Belize park
(03/19/2012) A NASA funded expedition using airborne lasers to study ancient Mayan ruins has also documented widespread illegal deforestation in the Caracol Archaeological Reserve. The lasers found that forest disturbance was actually 58 percent greater than recent satellite surveys showed, according new study in mongabay.com's open access journal Tropical Conservation Society (TCS). Such deforestation not only imperils biodiversity, carbon storage, and migration routes for Central American species, but could also lead to plundering of the Maya site of Caracol.
How best to monitor biodiversity in REDD+ projects?
(03/19/2012) If done well, REDD+ projects (Reducing Emissions from Deforestation and Forest Degradation) may not only save carbon rich forests, but also protect embattled biodiversity. But what's the best way to ensure both and carbon and species are preserved under REDD+, a program that proposes to pay nations to keep forests standing? A new study in mongabay.com's open access journal Tropical Conservation Society (TCS) argues that a one-size-fits-all approach to monitoring biodiversity in REDD+ projects would not only be difficult to develop, but would likely fail given vast differences in forest ecology and threats worldwide. Instead local sites should develop monitoring programs based on a generally approved roadmap.
Using palm hearts sustainably in Colombia
(12/12/2011) Long eaten by indigenous populations, palm hearts have also popular abroad, usually in fine dining establishments. However, palm hearts are cut-out of the inner core of various palm tree species, in some cases killing the tree. A new study published in mongabay.com's open access journal Tropical Conservation Society looks at the sustainability of palm heart extraction from the palm species Prestoea acuminata in the Colombian Andes. While harvesting from Prestoea acuminata does not kill the host tree, better management is needed to ensure the practice doesn't become unsustainable.
Locals key to saving primate-rich wetlands in Cote D'Ivoire
(12/12/2011) Saved from being converted into a vast palm oil plantation by PALM-CI in 2009, the Ehy Tanoé wetlands and forest in the Cote D'Ivoire (Ivory Coast) is home to three gravely endangered primates and as well as many other species. Since 2006, a pilot community management program has been working to protect the 12,000 hectare area, and a new study in mongabay.com's open access journal Tropical Conservation Science finds that long-term conservation of the Ehy Tanoé wetlands and forest is, in fact, vital for locals who depend on the area for hunting, fishing, firewood, building materials, and medicinal plants. In addition, the study finds that the ecosystem has special cultural and spiritual importance to locals.
Madagascar tree diversity among the highest worldwide
(12/12/2011) In terms of biodiversity, the hugely imperiled forests of Madagascar may be among the world's richest. Researchers estimate that the island off the coast of Africa is home to at least 10,000 tree and shrub species with over 90 percent of them found no-where else in the world. With little baseline data collected on Madagascar's ecosystems, a new study, the first ever of tree diversity in Madagascar lowland rainforests, hopes to begin the process. Published in mongabay.com's open access journal Tropical Conservation Science, the new study surveyed tree species in eastern Madagascar's Betampona Special Reserve.
Bushmeat trade driving illegal hunting in Zimbabwe park
(12/12/2011) Bushmeat hunting is one of the major threats to mammals in sub-Saharan Africa. Although widely discussed and recognized as an issues in Central and West Africa, a new study in mongabay.com's open access journal Tropical Conservation Science describes a pattern of bushmeat hunting that is also occurring in southern Africa. Interviewing 114 locals living adjacent to Gonarezhou National Park in Zimbabwe, Edson Gandiwa with Wageningen University found that the primary drivers of illegal hunting in the park were bushmeat and personal consumption (68 percent).
Caatinga ecosystem almost wholly ignored in Brazil
(09/26/2011) Tropical dry forests have received little conservation and research attention as compared to their rainforest cousins, leaving these ecosystems to become gravely threatened while still largely unknown to the public and scientists. A new study in mongabay.com's open access journal finds that Caatinga, a seasonally dry tropical forest, is the least-known forest in Brazil.
Restoring tropical forests by keeping fire far away
(09/26/2011) Keeping fire at bay could be key to reforesting abandoned land in the tropics, according to a new study in mongabay.com's open access journal Tropical Conservation Science. Measuring the recovery of regenerating forests in Kibale National Park in Uganda, the study found that suppressing fire allowed the forest to come back over a period of decades. Given the role rainforests play in sequestering carbon and safeguarding biodiversity, the study argues that reforesting abandoned land in the tropics should be a global policy and controlling fire may be an simple and largely inexpensive method to achieve the goal.
Expanding ethanol threatens last remnants of Atlantic Forest
(09/26/2011) Aggressively expanding sugarcane ethanol is putting Brazil's nearly-vanished Atlantic Forest at risk, according to an opinion piece in mongabay.com's open-access journal Tropical Conservation Science. Already down to less than 12 percent of its original extent, the Atlantic Forest—home to over 7,000 species that survive no-where else—is facing a new peril from ethanol, used as an alternative to gasoline and often touted as 'green' or 'environmentally-sustainable'.
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