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Tag: plankton
Plankton make scents for seabirds and a cooler planet
2014-03-20 12:29:00| Climate Ark Climate Change & Global Warming Newsfeed
PhysOrg: The top predators of the Southern Ocean, far-ranging seabirds, are tied both to the health of the ocean ecosystem and to global climate regulation through a mutual relationship with phytoplankton, according to newly published work from the University of California, Davis. When phytoplankton are eaten by grazing crustaceans called krill, they release a chemical signal that calls in krill-eating birds. At the same time, this chemical signal-dimethyl sulfide, or DMS-forms sulfur compounds in the...
Tags: make
planet
cooler
scents
Ancient Climate Data Entombed in Plankton Shells
2013-10-26 17:33:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: New research suggests a record of ancient climate change is embedded in magnesium deposits present in ancient plankton shells. With further research, scientists may be able to use these ancient plankton shells to establish climate variability in Earth's far distant past, as well as provide new methods of measuring ocean acidification and salinity in past oceans. The research, published in the journal Earth and Planetary Science Letters, reveals new insights on the state of the climate hundreds...
Tags: data
ancient
climate
shells
Magnesium In Plankton Shells Serves As Record Of Ancient Climate Change
2013-10-26 13:17:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: Climate change dating as far back as hundreds of million years ago was recorded in the shells of ancient oceanic plankton, according to new research published in the journal Earth and Planetary Sciences Letters. Typically, scientists analyze polar ice in search of information about the planets temperature and atmosphere, but the oldest Antarctic ice core records only date back to approximately 800,000 years ago. In the new study, investigators from the University of Cambridge Department of...
Tags: change
record
serves
ancient
Tiny Plankton in the Oceans Could Have Big Impact
2013-09-28 19:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate News Network: Some of the most minute forms of marine life may have a significant effect both on more developed creatures and on the oceans' ability to absorb carbon dioxide. An international team of scientists has found that the smallest species of plankton thrive when levels of carbon dioxide (CO2), the main greenhouse gas from human sources, rise and increase the acidity of the oceans. Writing in Biogeosciences, a journal of the European Geosciences Union, they say this could knock the marine food web...
Tiniest plankton to thrive with increased CO2, upsetting ocean carbon cycle
2013-09-14 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Summit County: In the great global warming experiment there will be winners and losers, and it looks like some of the tiniest plankton species will be among the winners -- probably at the expense of larger species higher up the food chain. Research off the coast of Svalbard, Norway in 2010 showed that the smallest plankton groups thrive at elevated carbon dioxide levels. This could cause an imbalance in the food web as well as a decrease ocean CO2 uptake, an important regulator of global climate. The results...
Tags: increased
cycle
ocean
carbon