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Tag: "understory" at biology news

Immunization rates hit record high in poor countries

...takable to turkeys and deer (and hunters): a thick understory of duff, deep with shade that accentuates the black furrows of the hemlock's tannin-rich bark. In winter, chickadees eat the small seed cones of the hemlock and they are only one species of many that depend on the hemlock not just for food but for...

Fungal factories may save hemlock forests

...takable to turkeys and deer (and hunters): a thick understory of duff, deep with shade that accentuates the black furrows of the hemlock's tannin-rich bark. In winter, chickadees eat the small seed cones of the hemlock and they are only one species of many that depend on the hemlock not just for food but for...

Fragmentation rapidly erodes Amazonian biodiversity

...re trees specialized for living in the dark forest understory that need animals such as birds or bats to disperse their seeds and pollen.? Fragmentation is also changing the dynamics and structure of the forest. Tree communities in fragments are highly unstable, losing and gaining species at a high rate. Fr...

Ecosystem services and invasive species

...l Park for long-term monitoring of both canopy and understory species. Valuation of ecosystem services of Overton Park, Memphis, TNMonday August 7, 2006, 5 ?6:30 PM, Exhibit Hall, Cook Convention Center Overton park, the largest green space in Memphis, provides ecosystem services as an urban forest. Often ...

Diverse tropical forests defy metabolic ecology models

...rs a run for their money. Trees range from spindly understory shrubs to enormous buttress-rooted rainforest giants festooned with vines and peppered with orchids, ferns and bromeliads. Tropical trees depend on animals for pollination and seed dispersal and are constantly assaulted by insects, fungi, maelstrom a...

Invasive species harms native hardwoods by killing soil fungus

...ustard. "This suggests garlic mustard invades the understory of mature forests by poisoning the allies of its main competitors," Stinson says. "By killing off native soil fungi, the appearance of this weed in an intact forest could stifle the next generation of dominant canopy trees. It could also invite other...

Predators keep the world green, ecologists find

...erbivore-impacted islets," the authors wrote. "The understory is almost free of foliage, so that a person standing in the interior sees light streaming in from the edge around the entire perimeter. There is almost no leaf litter, and the ground is bright red from the subsoil brought to the surface by leaf-cutte...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...f escaped agricultural fires that burn through the understory of frontier forests every dry season. These areas ...ries from our first year of burning is that forest understory fires are invisible to the coarse-resolution satellites that are used to monitor active fires around...

Finding hidden invaders in a Hawaiian rain forest

... my experience that remote sensing has detected an understory species, kahili ginger, one of the most disruptive weeds in Hawaiian rain forests." Asner commented on the expanded effort with the multi-institutional team: "Because Hawaii contains so many different types of ecosystems, from desert grasslands to t...

Falling ants glide back to trunk to avoid dangers of forest floor

...to the tree, they're trying to not get lost in the understory of the forest," he said. Once they hit the forest floor, he added, they're unlikely to find a chemical trail back to the nest, and most likely will be eaten by predators. Yanoviak said that perhaps more important from the perspective of survival, th...

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