Tag: "cliff" at biology news
Ancient creature fossilized by the bacteria that ate it
...out 100 miles from McMurdo Station, they came to a cliff
face which had thrust out of the ground, exposing layers of brown volcanic rock with a bold ribbon of tan limestone snaking in-between. Though the scientists could see arthropod fossils exposed in the rock as they gathered their sample...
Self-organization and vegetation collapse in salt marsh ecosystems
...e of vegetation collapse and severe erosion on the cliff
edge, leading to salt-marsh destruction. Seawards of this cliff
new pioneer vegetation can develop, leading to rejuvenation of the salt marsh. The study shows that...
Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra
...such as murres and kittiwakes, which nest on steep cliff
faces, were less affected by the foxes, he said. "Wherever the puffins and gulls have come back after the removal of the foxes, the vegetation has started to become lusher again," Byrd said. "The terrestrial ecosystem was probably modified in more wa...
Students discover 11,000 year old remains of Irish Elk
... peats. "I just scraped the surface of the fallen cliff
section which was in a block that had recently slid down the cliff
and uncovered an orange streak which turned out to be an antler." As the block was in danger of im...
Bio-archaeologists pinpoint oldest northern European human activity
... worked flint flakes discovered two years ago in a cliff
at Pakefield near Lowestoft, Suffolk. After members of the international team used stratigraphy to indicate the likely age of the flints, the York scientists were called in to confirm the antiquity of the artefacts using a newly-refined technique of ...
USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey
...orrelated with those in aquatic insects, fish, and cliff
swallow eggs from the same sites, confirming the usefulness of amphibians as indicators of mercury contamination, especially in fishless areas. Roger Hothem, Session 48, Wednesday, Sep 27, 2006, 8:00 a.m. -12:00 p.m. Predator-Prey Studies Through ...
Coral stress 'like never in history'
... fossil reefs of the Huon Peninsula, which are now cliff
faces rising up to 25 metres above the beach, A/Prof. Pandolfi and his team were able to see where large scale disturbances had occurred in the history of these reefs which dated back as far as 11 000 years ago. "The sequence of fossils is like a t...
Coelacanth fossil sheds light on fin-to-limb evolution
...dman said, adding that the fossil had fallen off a cliff
a couple of hundred feet high and landed in a different set of rocks. The four-inch long specimen details the fin of the animal, which the scientists approximate would have been about 18 to 24 long. The scientists will return to the Wyoming site ne...