Browsing Tag 'trees'
Yellowstone National Park is home to more than 1,350 species of vascular plants and numerous species of mammals, amphibians, reptiles and birds—not to mention the natural landmarks such as Old Faithful Geyser. Among the inhabitants of Yellowstone is the famous quaking aspen, a deciduous tree that has significantly declined in the park since the 20th Century, due in large part to elk grazing.
Read more...Video describing the challenges of male pregnancy, photo gallery of the oldest trees in the world, podcast outlining Earth’s environmental tipping points and an article on adapting to the anthropocene. Here is ecological news from the third week in March.
Read more...
Growing conditions, such as water and nutrient supply, are the major determinates of tree growth, but insectivorous birds can also play an important role, say scientists in a study published in the January issue of Ecology. Under the right conditions, birds contribute to whole tree growth by preying on herbaceous arthropods, such as leafhoppers, caterpillars and grasshoppers…
Read more...
Tree deaths have more than doubled in the western U.S. in the past 20-30 years, and the culprit is climate change, according to a paper published Friday in Science. Warming has all kinds of consequences for species ranges. Changes in temperature can narrow a species’ range or move it latitudinally through changes in average yearly [...]
Read more...