Plant news from Mongabay
Majority of Andes' biodiversity hotspots remain unprotected
Around 80 percent of the Andes' most biodiverse and important ecosystems are unprotected according to a new paper published in the open-access journal BMC Ecology. Looking at a broad range of ecosystems across the Andes in Peru and Bolivia, the study found that 226 endemic species, those found no-where else, were afforded no protection whatsoever. Yet time is running out, as Andean ecosystems are undergoing incredible strain: a combination of climate change and habitat destruction may be pushing many species into ever-shrinking pockets of habitat until they literally have no-where to go.
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Picture of the day: the world's largest bromeliad
Found in the Andes of Peru and Bolivia, the world's biggest bromeliad Puya raimondii is imperiled by climate change and human disturbances.
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Protecting original wetlands far preferable to restoration
Even after 100 years have passed a restored wetland may not reach the state of its former glory. A new study in the open access journal PLoS Biology finds that restored wetlands may take centuries to recover the biodiversity and carbon sequestration of original wetlands, if they ever do. The study questions laws, such as in the U.S., which allow the destruction of an original wetland so long as a similar wetland is restored elsewhere.
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Economic slowdown leads to the pulping of Latvia's forests
The economic crisis has pushed many nations to scramble for revenue and jobs in tight times, and the small Eastern European nation of Latvia is no different. Facing tough circumstances, the country turned to its most important and abundant natural resource: forests. The Latvian government accepted a new plan for the nation's forests, which has resulted in logging at rates many scientists say are clearly unsustainable. In addition, researchers contend that the on-the-ground practices of state-owned timber giant, Latvijas Valsts meži (LVM), are hurting wildlife and destroying rare ecosystems.
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Scientists discover over 19,000 new species in 2009
In 2009 researchers described and named 19,232 species new to science, pushing the number of known species on Earth to just under two million (1,941,939 species), according to the State of Observed Species (SOS). Discoveries included seven new birds, 41 mammals, 120 reptiles, 148 amphibians, 314 fish, 626 crustaceans, and 9,738 insects.
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Geology has split the Amazon into two distinct forests
The common view of the Amazon is that it is one massive, unbroken forest. This impression is given by maps which tend to mark the Amazon by a large glob of green or even by its single name which doesn't account for regional changes. Of course, scientists have long recognized different ecosystems in the Amazon, most especially related to climate. But a new study in the Journal of Biogeography has uncovered two distinct forest ecosystems, sharply divided, caused by million of years of geologic forces.
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New book series hopes to inspire research in world's 'hottest biodiversity hotspot'
Entomologist Dmitry Telnov hopes his new pet project will inspire and disseminate research about one of the world's last unexplored biogeographical regions: Wallacea and New Guinea. Incredibly rich in biodiversity and still full of unknown species, the region, also known as the Indo-Australian transition, spans many of the tropical islands of the Pacific, including Indonesia's Sulawesi, Komodo and Flores, as well as East Timor—the historically famous "spice islands" of the Moluccan Archipelago—the Solomon Islands, and, of course, New Guinea. Telnov has begun a new book series, entitled Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea, that aims to compile and highlight new research in the region, focusing both on biology and conservation. The first volume, currently available, also includes the description of 150 new species.
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Seals, birds, and alpine plants suffer under climate change
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.
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Weird carnivorous flower devours worms underground
A worm measuring only a millimeter in length scoots its way through relatively massive grains of white sand. The worm, known as a nematode or roundworm, is seeking lunch in the form of bacteria. Suddenly, however, its journey is interrupted: it is caught on a large green surface. Unable to wiggle free the worm is slowly digested, becoming lunch itself for an innocuous purple flower called Philcoxia minensis.
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How lemurs fight climate change
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.
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Will Taiwan save its last pristine coastline?
Voters in the January 14 Taiwanese presidential election will decide the fate of the island’s last pristine wilderness known as the Alangyi Trail. Amongst the three candidates, only one (Tsai Ing-wen from the Democratic Progressive Party) may support the conservation of Alangyi Trail and its coastline. One of the top domestic stories of 2011 were the efforts by the Pingtung County government, indigenous tribes, and NGOs to preserve the Alangyi Trail, according to the Taiwan Environmental Information Center. Alangyi is now a major issue reflecting steadily growing environmental concern amongst the Taiwanese, but its fate is sadly uncertain.
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Using palm hearts sustainably in Colombia
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.
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Estimating the rich diversity of galling insects
How does one estimate the number of tiny, cryptic "galling" insects without finding and describing every one (a task that could take centuries of taxonomic work)? According to a new paper in mongabay.com's open access journal Tropical Conservation Science, you count the plants. Galling insects use plant tissue for development creating a "gall," or abnormal growth on the plant. Such little-known insects include gall wasps, gall midges, aphids, and jumping plant lice. The groups are known to be highly diverse, with over 2,000 species described from the US alone; scientists have previously estimated that there may be as many as 132,000 different species.
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Madagascar tree diversity among the highest worldwide
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.
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Zoopharmacognosy: how self-healing animals could save humans
As humans we take many things for granted. When we come down with a sore throat, a fever, or the dreaded stomach flu, we drag our aching bodies into our cars and visit the doctor. Animals have no such luxury. Instead they have mastered evolution and have acquired an innate knowledge of the plants, soils, minerals, algae, and other remedies that nature offers to heal their aches and pains.
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One night only: new orchid species surprises scientists
A mysterious new orchid blooms for one night only, opening around 10 PM and closing at 10 AM. Discovered on the island of New Britain near Papua New Guinea, the new species is the world's first orchid that flowers only at night. Scientists found the new flower, named Bulbophyllum nocturnum, in a logging concession on the tropical island.
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Giant rat plays big ecological role in dispersing seeds
Rats are rarely thought of as heroes. In fact, in many parts of the world they are despised, while in others they serve largely as food. But, scientists are now discovering that many tropical forest rodents, including rats, serve as heroic seed dispersers, i.e. eating fruits and nuts, and carrying seeds far from the parent tree, giving a chance to a new sapling. While this has been documented with tropical rodents in South America like agoutis and acouchis, a new study in Biotropica documents the first successful seed dispersal by an African rodent: the Kivu giant pouched rat (Cricetomys kivuensis), one of four species of giant African rats.
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Picture of the day: quiet river in the woods
A river and forest in Gooseberry Falls State Park in the US state of Minnesota. The forest here is made up primarily of evergreens, aspen, and birch.
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Critically Endangered lemurs disperse seeds, store carbon
Many tropical plants depend on other species to carry their progeny far-and-wide. Scientists are just beginning to unravel this phenomenon, known as seed dispersal, which is instrumental in supporting the diversity and richness of tropical forests. Researchers have identified a number of animal seed dispersers including birds, rodents, monkeys, elephants, and even fish. Now a new study in the Journal of Tropical Ecology adds another seed disperser to that list: the Critically Endangered black-and-white ruffed lemur (Varecia variegata). Capable of dispersing big tree species, the black-and-white ruffed lemur may even play a big role in carbon sequestration.
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Picture of the day: bromeliads in a cloud forest
These bromeliads of the cloud forests of the Andes are epiphytes. While they grow on other plants, in these cases trees, they are not parasitic.
Categories: Plant news from around the world
