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Tag: "forest" at biology news

Poison dart frog mimics gain when birds learn to stay away

...st and Cummings studied happen to live in the same forest basin where the famous naturalist Henry Bates first described mimicry in butterflies over 100 years ago. His theory, known as Batesian mimicry, describes how edible species can gain protection from predators by looking like toxic species. ...

Scientists discover dozens of new species in 'Lost World' of western New Guinea

...scientific world in 1981 with his discovery of the forest homeland of the Golden-fronted Bowerbird in the sa...isplaying at its bower ?a tower of twigs and other forest materials it builds for the mating ritual. The new species of honeyeater, the first new bird discov...

Deep-rooted plants have much greater impact on climate than experts thought

...to the atmosphere. The new study in the Amazonian forest shows that trees use water in a much more complex ...ents," Dawson said. "This allows the trees and the forest to sustain water use throughout the dry season." The process is a passive one, he noted, driven by ...

Rhinos clinging to survival in the heart of Borneo, despite poaching

...al of about 84,942 square miles of equatorial rain forest ?through a network of protected areas and sustainably managed forest, and through international cooperation led by the Bornean governments and supported by a global effort. ...

Laos ?a lost world for frogs

...o the Annamite striped rabbit and saola, a type of forest antelope. Nine amphibians have been discovered by...iversity, Lao PDR has some of the most significant forest areas remaining in Southeast Asia. However, the combined loss of forest cover (estimated at nearly 5...

Butterflies lose body fat during metamorphosis

...se the larva feed solely on the leaves of the rain forest tree Pterocarpus, on which the butterfly lays its eggs. On a daily basis, they measured the food consumption of the larva and then analyzed the fatty acid composition and content of the diet as well as the larva. Once the larva had transformed in...

Amazon rainforest greens up in the dry season

...portion of the rainforest. Areas where the primary forest has been converted to other uses or disturbed, "br...uggests the deep roots of trees in the undisturbed forest can reach water even in the dry season, allowing the trees to flourish during the sunnier, drier par...

Protecting endangered species helps reduce poverty

...l people to manage and directly benefit from these forest resources. According to the report, groups of community forest users can earn $4,760 annually in a nation where the per capita income is roughly $250. In the Ind...

The Amazon in 2050: Implementing the law could save a million square kilometers of rainforest

...ns, are simulating future trends in deforestation, forest fire, rivers, fauna, and climate, providing glimps...lometers of deforestation (one fifth of the entire forest area), avoiding 17 billion tons of carbon emissions to the atmosphere, the elimination of several fo...

Diverse tropical forests defy metabolic ecology models

...er more urgent. Modelers seek simple predictors of forest biomass and carbon flux. Over the last decade, the...e models presented by the CTFS team. Are tropical forest structure and dynamics too complex for universal explanations? "When you walk through different tro...

CU, USDA team to curb two invasive, poisonous vines

... in some maize and soybean fields and are altering forest regeneration patterns. Native populations of pale...k-flowered pale swallow-wort grows rapidly in both forest understories and in open fields of undisturbed soil throughout central and upstate New York, around ...

First wolverine radio-collared in Pacific Northwest

...rs, and otters. They are primarily found in boreal forest and tundra habitats in the far north, but also occur in mountainous terrain at the southern end of their current range in the Cascades and Northern Rockies. They prey on everything from moose to mice, and often rely heavily on scavenging for food du...

Invasive species harms native hardwoods by killing soil fungus

...h form mutually beneficial relationships with many forest trees. These fungi have long filaments that penetr...il fungi, the appearance of this weed in an intact forest could stifle the next generation of dominant canopy trees. It could also invite other native and non...

Genetic study shows humans have pushed orangutans to the brink of extinction

...is linked with oil palm plantation development and forest destruction. Illegal killing also contributes to t...ese forests are exploited for timber under natural forest management, but orangutans cannot survive in industrial tree plantations. "This population will d...

Satellites show Amazon parks, indigenous reserves stop forest clearing

...bited reserves in slowing the most extreme form of forest disturbance: conversion to agriculture. In a pap... and indigenous territories halt deforestation and forest fires. According to Nepstad, "Protecting indigenous and traditional peoples' lands and natural ar...

Of mice, men, trees and the global carbon cycle

...rocess of respiration; Peter Reich, a professor of forest resources, and his colleagues have found that plant emissions can be deduced from the nitrogen content of any plant. The study also reveals that the respiration, or metabolic, rates of plants and animals follow different laws of scaling with respect ...

Underdogs in the understory: Study suggests nature favors rarer trees

...id. The study was conducted on seven undisturbed forest plots, or "tropical forest observatories," maintained and studied by research institutions in Borneo, India, Malaysia, Panama, ...

Carnegie Mellon scientists show brain uses optimal code for sound

...and natural environment sounds like footsteps in a forest or a flowing stream," said Michael Lewicki, associate professor of computer science at Carnegie Mellon and a member of the Center for the Neural Basis of Cognition (CNBC). "We found that the optimal code for natural sounds is the same as that for spe...

Computers to save unique type of American red squirrel

...he last 10,000 years in a small area of coniferous forest on a mountain in the Arizona desert, has a unique ... include damage to its habitat by insects and huge forest fires, as well as predation from birds of prey like the Mexican Spotted Owl and the Northern goshawk...

Predators keep the world green, ecologists find

...t. Most of the vertebrates present in regional dry forest ecosystem had disappeared from small islands, including fruit eaters and predators of vertebrates, leaving a hyperabundance of generalist herbivores such as iguanas, howler monkeys and leaf-cutter ants. "Mere numbers do not do justice to the bizarre...

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