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Google Earth Improves Estimates of Fish Catches
November 27, 2013 09:10 AM - Allison Winter, ENN
The basic idea of a fish trap is that when a fish swims inside through it's opening, it cannot get out, therefore trapping the fish and making it easier for populations to collect a decent catch. People around the world use different kinds of fish traps depending on the local conditions and behavior of the fish they are trying to catch. One type of fishing trap known as weirs that jut out from coastlines is now facing scrutiny as Google Earth images reveal the traps be snaring six times as many fish than what is officially reported.
Ammonia threatens national parks
November 27, 2013 09:09 AM - ENN, Staff
Ammonia emissions have become a serious concern for scientists at Harvard University. Of particular note, thirty eight U.S. national parks are experiencing “accidental” fertilization” at or above a critical threshold for ecological damage according the study recently published in Atmospheric Chemistry and Physics.
Climate change signals a whale of a shift in feeding patterns
November 26, 2013 09:08 AM - Rebecca Kessler, Yale 360
Every summer and fall, endangered North Atlantic right whales congregate in the Bay of Fundy between Nova Scotia and New Brunswick to gorge on zooplankton. Researchers have documented the annual feast since 1980, and well over 100 whales typically attend, a significant portion of the entire species. Only this year, they didn't. Just a dozen right whales trickled in—a record low in the New England Aquarium's 34-year-old monitoring program. And that comes on the heels of two other low-turnout years, 2010 and 2012.
"Location, location, location" on the wild side
November 25, 2013 04:16 PM - Robin Blackstone, ENN
The old real estate adage "location, location, location" is still the most important factor in purchasing property but the term "location" is bringing with it a different perspective today than it did years ago. While property sales have boasted bonus attributes such as proximately to shops, bus routes, beach front and features such as media rooms, offices and central air conditioning and "other amenities" little has been said about wildlife-friendly gardens.
80,000 acres swallowed up
November 25, 2013 02:58 PM - Robin Blackstone, ENN
The United States has lost approximately 80,000 acres of coastal wetlands between 2004 and 2009 according to the U.S. Fish and Wildlife Service and the National Oceanic and Atmospheric Administration (NOAA). Much of this loss is blamed on development and has occurred in freshwater regions. Additionally, more than 70% of the loss is from the Gulf of Mexico. According to the EPA wetland loss in the eastern U.S. is happening at a rate double that of what is being restored.
November 25, 2013 12:42 PM - ENN Staff
Soaring silently above the landscape, owls search out their prey utilizing acoustic stealth. University of Cambridge, England researchers led by Dr. Justin Jaworski are studying the owl’s wing structure and mechanics to better understand how it mitigates noise to apply that information conventional aircraft design.
Arctic at risk from invasive species
November 25, 2013 09:31 AM - Christopher Ware, Ecologist
As the Arctic ice melts, new shipping routes are opening up for tourism, mining and other commercial purposes, cutting journey times and fuel costs. And as Christopher Ware reports, a new danger arises - invasive alien species disrupting fragile Arctic ecosystems...
Pre-industrial Methane Emissions Triggered by Natural and Anthropogenic Causes
November 25, 2013 09:19 AM - Allison Winter, ENN
The climate change debate has been going back and forth between skeptics and believers for the last couple of years. While carbon dioxide is usually the greenhouse gas that gets the most attention, methane is considered another powerful greenhouse gas that can be emitted both naturally as well as human-induced. A new study suggests the increase in methane emissions since the industrial revolution cannot be blamed on anthropogenic sources alone.
Brazil Deforestation Up 28%
November 21, 2013 04:54 PM - Editor, The Ecologist
After a significant drop in the last several years, the annual deforestation rates in Brazil raised 28% for the period August 2012-July 2013, according to INPE, the Brazilian Spatial Institute. The total area deforested in 2012-2013 is 5,843 km2 - a trend led by the states of Mato Grosso, Roraima, MaranhÃ£o, and ParÃ¡. The area cleared in Mato Grosso rose 52% from 757 km2 in 2012 to 1,149. The area cleared in ParÃ¡ rose 37% from 1,741 km2 to 2,379 km. For Roraima deforestation increased 49% from 124 km2 to 185 km2. MaranhÃ£o registered 269 km2 cleared in 2012 and 382 km2 in 2013, an increase of 42%...
Deadly Disease Causes Extinction of Darwin's Frog
November 21, 2013 11:24 AM - Allison Winter, ENN
Discovered by Charles Darwin in 1834, Rhinoderma darwinii (better known as Darwin's frogs) have been declared extinct after a killer disease is thought to have wiped out entire populations across Chile and Argentina. According to scientists from the Zoological Society of London (ZSL) and Universidad Andrés Bello (UNAB), Chile, chytridiomycosis is the main reason for this amphibian extinction.