News tagged with growth rings
Australia's climate: Drought and flooding in annual rings of tropical trees
Space & Earth / Earth Sciences
Jun 11, 2009 |
3.5 / 5 (6) |
0
Annual rings are acclaimed in representing natural climate archives. For the temperate latitudes it is known that the growth of these annual rings depend mainly on temperature and precipitation. In the tropics, however, ...
Search results for growth rings
Douglas-fir, geoducks make strange bedfellows in studying climate change
Space & Earth / Earth Sciences
Jul 30, 2009 |
5 / 5 (3) |
0
Scientists are comparing annual growth rings of the Pacific Northwest's largest bivalve and its most iconic tree for clues to how living organisms may have responded to changes in climate.
Carbon and oxygen in tree rings can reveal past climate information
Space & Earth / Earth Sciences
Dec 03, 2009 |
3 / 5 (4) |
1
The analysis of carbon and oxygen isotopes embedded in tree rings may shed new light on past climate events in the Mackenzie Delta region of northern Canada.
Study Finds Oldest Trees Grow Slowest - Even as Youngsters
Biology /
Feb 05, 2009 |
4.3 / 5 (3) |
0
(PhysOrg.com) -- A newly published study has found that the oldest trees in the forest also grow the slowest - and they likely aren’t the prettiest.
Ancient high-altitude trees grow faster as temperatures rise
Space & Earth / Earth Sciences
Nov 16, 2009 |
4.2 / 5 (11) |
0
PIC=32536:left]Increasing temperatures at high altitudes are fueling the post-1950 growth spurt seen in bristlecone pines, the world's oldest trees, according to new research.
The least sea ice in 800 years
Space & Earth / Earth Sciences
Jul 01, 2009 |
4.1 / 5 (66) |
77
New research, which reconstructs the extent of ice in the sea between Greenland and Svalbard from the 13th century to the present indicates that there has never been so little sea ice as there is now. The ...
Extinct goat was cold-blooded
Nov 18, 2009 |
4.9 / 5 (39) |
11
(PhysOrg.com) -- An extinct goat that lived on a barren Mediterranean island survived for millions of years by reducing in size and by becoming cold-blooded, which has never before been discovered in mammals.
NYU dental professor discovers biological clock
Biology /
Apr 06, 2008 |
4.4 / 5 (57) |
0
Why do rats live faster and die younger than humans? A newly discovered biological clock provides tantalizing clues.
Images of Saturn's Small Moons Tell the Story of Their Origins
Space & Earth / Space Exploration
Dec 06, 2007 |
4.6 / 5 (18) |
0
Imaging scientists on NASA's Cassini mission are telling a tale of how the small moons orbiting near the outer rings of Saturn came to be. The moons began as leftover shards from larger bodies that broke apart ...
Ancestor of Modern Trees Preserves Record of Ancient Climate Change
Space & Earth / Earth Sciences
Nov 01, 2006 |
4.5 / 5 (24) |
0
About 350 million years ago, at the boundary of the Devonian and Carboniferous ages, the climate changed. There was no one around to record it, but there are records nonetheless in the rocks deposited by glaciers ...
Unexpected finding: Some dinosaurs grew slower in hard times
Dec 15, 2005 |
5 / 5 (3) |
0
Palaeontologists from the University of Bonn report on an intriguing diagnosis in the 16 December issue of the journal Science. A dinosaur which they have examined was apparently able to vary the speed of its ...
List of search results for growth rings
