One “dog year” supposedly equals seven human years. But does one year feel like seven years to a dog? Evidence suggests that distinct species do indeed experience passing time on different scales. A recent study in Animal Behavior reveals that body mass and metabolic rate determine how animals of different species perceive time.
It is believed to be the largest in the world – with queens likened to "flying mice". But a bumblebee once common in South America is heading for extinction, scientists fear, as European invaders mass on the doorstep of its last known stronghold.
Rapid changes on Elwha River in nation's largest dam-removal project The Republic PORT ANGELES, Washington — The final chunks of concrete are expected to fall this September in the nation's largest dam-removal project, but nature is already...
"With only about one-sixth of the original coral cover left, most Caribbean coral reefs may disappear in the next 20 years, primarily due to the loss of grazers in the region, according to the latest report by the Global Coral Reef Monitoring Network (GCRMN), the International Union for Conservation of Nature (IUCN) and the United Nations Environment Programme (UNEP).
The report, Status and Trends of Caribbean Coral Reefs: 1970-2012, is the most detailed and comprehensive study of its kind published to date – the result of the work of 90 experts over the course of three years. It contains the analysis of more than 35,000 surveys conducted at 90 Caribbean locations since 1970, including studies of corals, seaweeds, grazing sea urchins and fish.
The results show that the Caribbean corals have declined by more than 50% since the 1970s. But according to the authors, restoring parrotfish populations and improving other management strategies, such as protection from overfishing and excessive coastal pollution, could help the reefs recover and make them more resilient to future climate change impacts.
“The rate at which the Caribbean corals have been declining is truly alarming,” says Carl Gustaf Lundin, Director of IUCN’s Global Marine and Polar Programme. “But this study brings some very encouraging news: the fate of Caribbean corals is not beyond our control and there are some very concrete steps that we can take to help them recover.”
Climate change has long been thought to be the main culprit in coral degradation. While it does pose a serious threat by making oceans more acidic and causing coral bleaching, the report shows that the loss of parrotfish and sea urchin – the area’s two main grazers – has, in fact, been the key driver of coral decline in the region. An unidentified disease led to a mass mortality of the sea urchin in 1983 and extreme fishing throughout the 20th century has brought the parrotfish population to the brink of extinction in some regions. The loss of these species breaks the delicate balance of coral ecosystems and allows algae, on which they feed, to smother the reefs."
The Idaho Statesman Chinook salmon coming to the Boise River The Idaho Statesman Boise — To give more anglers a chance to catch one of Idaho's most prized game fish, Idaho Fish and Game will release chinook salmon into the Boise River sometime...
The usual US partisan divisions over climate change were absent today in the state of Virginia, where Republican and Democrat officials met to discuss what to do about the threat of rising sea levels to the state. The proposals include the launch of a climate-change task force, which Virginia's Democrat governor will announce tomorrow. Christina DeConcini, government affairs director at...
Dam's removal in Augusta is a wildlife success story Press Herald Environmental and fisheries advocates say the Kennebec River has been looking better and getting healthier ever since the 917-foot-long dam was removed on July 1, 1999, returning 17...
Credit: Wikimedia Commons "Overfishing and pollution have pushed life in the high seas to the brink of collapse, according to a new report from the Global Ocean Commission. “The oceans are a failed state,” David Miliband, co-chair of the commission, told Reuters. The commission has implored governments to set a five-year deadline to deal with threats to the health of the high seas, which are marine waters outside national coastal zones; these seas cover almost half the globe."
The news is filled with Eco-Armageddon as each new study reveals that the polar ice is melting even faster, polar bears are starving, there are garbage gyres in the ocean, and sunblock is destroying coral reef. Is green living a worthwhile pursuit or are we really just wasting our time?
A study published this week found tree cover does not necessarily correlate with habitat importance. It suggests that using such a metric may be leading to false assumptions of habitat importance, and that REDD+ and other carbon-centric conservation programs may actually be propelling some species towards extinction.
An international team of researchers has discovered honey bee colonies in Newfoundland, Canada, that are free of the invasive parasites that affect honey bees elsewhere in the world. The populations offer a unique opportunity to investigate honey bee health, both with and without interfering interactions ...
U.S. commercial fishermen are throwing away about $1 billion worth of edible fish each year, according to a conservation group which is advocating for incentives to stop the waste.
The quantity of so-called bycatch – that is, fish that wasn't targeted but caught inadvertently – is estimated by the U.S. government at two billion pounds (907,185 tonnes) a year.
The surprise was the quality of the bycatch that often is tossed back into the ocean dead or dying, said marine scientist Amanda Keledjian, author of the report from Oceana, a nonprofit international conservation group.