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Latest Coastal geography Stories

Coral Reef Diversity - Sometimes Less Is More
2012-08-29 10:08:25

Brett Smith for redOrbit.com - Your Universe Online A general rule of Darwinian evolution is that diversity provides for a more robust population that is capable of withstanding a higher degree of stress than a more homogenous population. However, researchers at the University of Hawaii at Manoa (UHM) have found that less diverse coral populations lead to reefs that are less sensitive to environmental disturbances, according to their report in Proceedings of the Royal Society B....

Charles Darwin Was Right - Some Species Can't Make The Trip
2012-08-28 11:07:18

April Flowers for redOrbit.com - Your Universe Online In 1880 Charles Darwin hypothesized that most species could not disperse across the Eastern Pacific Barrier (EPB). A new study, led by Iliana Baums, assistant professor of biology at Penn State University, is the first comprehensive test of that hypothesis using coral. The study, to be published in Molecular Ecology, found that a coral species in abundance from Indonesia eastward to Fiji, Samoa and the Line Islands rarely crosses the...

Additions To Coral Reef Woes Are Microbes, Sponges And Worms
2012-08-07 13:46:12

Study by Wildlife Conservation Society and University of the Azores identifies additional risks to reefs stemming from pollution and heavy fishing Microbes, sponges, and worms–the side effects of pollution and heavy fishing–are adding insult to injury in Kenya's imperiled reef systems, according to a recent study by the Wildlife Conservation Society and the University of Azores. The authors of the study have found that pollution and overfishing on reef systems have an...

Deepwater Horizon Spill Exacerbated Existing Problems In Louisiana Marshes
2012-06-26 04:10:50

The BP Deepwater Horizon oil spill temporarily worsened existing manmade problems in Louisiana's salt marshes such as erosion, but there may be cause for optimism, according to a new study. A study appearing online Monday in the Proceedings of the National Academy of Sciences found the 2010 spill killed off salt marsh plants 15 to 30 feet from the shoreline and this plant die off resulted in a more-than-doubled rate of erosion along the marsh edge and subsequent permanent marsh habitat...

Understanding The Effects And Impacts Of Flooding In The South Of England
2012-06-15 11:32:42

Research from the University of Southampton has developed and applied a method for understanding the effects and impacts of coastal flooding, which could contribute to more effective flood forecasting, defense design and land use planning. By using observations from real coastal floods and numerical models, researchers simulated coastal floods within the Solent region of the South of England to approximate the consequences of synthetic flood events, using land and property as example...

2012-06-08 11:02:29

Scientists from the Smithsonian and colleagues have found that waterbird communities can be the "canary in the coal mine" when it comes to detecting the health of urban estuary ecosystems. Their research revealed that the types of waterbirds that inhabit urban estuaries are influenced not only by urban development, but also by a far more natural process“•rain. The team's findings are published in the scientific journal PLoS ONE. The scientists compared waterbird communities in...

2010 Chile Earthquake Had Surprising Ecological Effects
2012-05-04 03:45:32

Long-forgotten coastal habitats reappeared, species unseen for years returned The reappearance of long-forgotten habitats and the resurgence of species unseen for years may not be among the expected effects of a natural disaster. Yet that's exactly what researchers found in a study of the sandy beaches of south central Chile, after an 8.8-magnitude earthquake and devastating tsunami in 2010. Their study also revealed a preview of the problems wrought by sea level rise--a major...

First-Of-Its-Kind Study Reveals Surprising Ecological Effects Of Earthquake And Tsunami
2012-05-03 06:29:33

The reappearance of long-forgotten habitats and the resurgence of species unseen for years may not be among the expected effects of a natural disaster. Yet that's exactly what researchers have found on the sandy beaches of south central Chile, after an 8.8-magnitude earthquake and devastating tsunami in 2010. Their study also revealed a preview of the problems wrought by sea level rise —— a major symptom of climate change. In a scientific first, researchers from Universidad...

Old Maps And Dead Clams Help Solve Coastal Boulder Mystery
2012-05-01 08:09:26

Perched atop the sheer coastal cliffs of Ireland's Aran Islands, ridges of giant boulders have puzzled geologists for years. What forces could have torn these rocks from the cliff edges high above sea level and deposited them far inland? While some researchers contend that only a tsunami could push these stones, new research in The Journal of Geology finds that plain old ocean waves, with the help of some strong storms, did the job. And they're still doing it. The three tiny Aran...

Image 1 - Crust Below Mississippi Delta Still Subsiding, Just Much Slower
2012-04-04 04:21:55

New data suggests that the Mississippi Delta is still sinking, but at a much slower rate than previously estimated. A new paper published in the journal Earth and Planetary Science Letters reports these new findings. Geoscientists arrived at this new conclusion after comparing detailed sea-level reconstructions from different areas of coastal Louisiana. The new findings not only reveal new information about the subsidence of the Mississippi Delta, but also admonishes the continuous...


Latest Coastal geography Reference Libraries

Coral Reef
2013-04-20 15:49:21

Coral reefs are submerged structures consisting of calcium carbonate secreted by corals. Coral reefs are colonies of small animals found in marine waters that enclose few nutrients. The majority of coral reefs are constructed from stony corals, which then consist of polyps that come together in groups. The polyps are like small sea anemones, to which they are very closely related. Unlike the sea anemones, coral polyps secrete hard carbonate exoskeletons which provide support and protections...

Mudflats
2013-04-19 21:07:34

Mudflats, or otherwise known as tidal flats, are coastal wetlands that form when mud is left behind by tides or rivers. They’re found in sheltered regions such as bayous, lagoons, estuaries, and bays. Mudflats might be seen geologically as exposed layers of bay mud, a result from the deposition of estuarine silts, marine animal detritus, and clays. The majority of the sediment in a mudflat is within the intertidal zone, therefore the flat is submerged and exposed about twice per day. In...

Salt Marsh
2013-04-19 21:04:15

A salt marsh, also otherwise known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone that lies between the land and the open salt water or brackish water that is routinely flooded by the tides. It’s dominated by dense stands of salt-tolerant plants, for example, herbs, grasses, or low shrubs. These plants originate from all around the globe and are important to the stability of the salt marsh in trapping and binding sediments. Salt marshes...

Basic Ocean Terms
2013-02-05 12:52:11

Image Credit: Meteorologist Joshua Kelly When meteorologists are forecasting for ocean-going vessels, there are a few terms that we need to understand. The first term is wavelength. Wavelength is defined as the distance between two crests or between two troughs as seen in the image above. The example above highlights the crest to crest concept of wavelength. The next term that we use is wave height, and to determine this, we first must look at the wave when it passes our station. When...

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Word of the Day
ween
  • To think; to imagine; to fancy.
  • To be of opinion; have the notion; think; imagine; suppose.
The word 'ween' comes from Middle English wene, from Old English wēn, wēna ("hope, weening, expectation"), from Proto-Germanic *wēniz, *wēnōn (“hope, expectation”), from Proto-Indo-European *wen- (“to strive, love, want, reach, win”).
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