Ocean animals along the Atlantic coast of the U.S. will remain safe from excessive noise pollution at least for the foreseeable future, as President Obama last week moved to deny six permit applications for oil and gas exploration from Florida to Delaware — including requests to use intrusive seismic blasting.
New study tracks increase in summertime haze in Colorado wilderness
Longer and hotter droughts and wildfires are polluting the once clear blue skies of the high country in the West, according to new research from the University of Utah.
The study, published this week in the journal Environmental Research Letters, found a link between the severity of drought in the Intermountain West and summertime air quality. Climate projections suggest that drought and wildfire risk will continue to increase in coming decades.
Increase in offshore energy development spurs conservation concerns
Humpback whales have always congregated in near-shore breeding areas, which makes them more susceptible to pressures from land-based and near-shore human activity, and the populations in the southwestern Indian Ocean are no exception. Scientists tracking the great cetaceans off the east coast of Africa say there are several areas near Madagascar that need protection from expanding offshore energy exploration.
After tagging several whales and tracing their movements via satellite, the scientists said their data can define potentially sensitive areas that should be protected from the disruption of seismic testing or other industrial development that could be destructive to the humpback population and this globally important marine habitat. Continue reading “Study IDs key humpback whale habitats near Madagascar”→
New data help show how long impacts will linger on seafloor, where pollutants get into the foodchain
Fall-out from the 2010 Deepwater Horizon oil disaster contaminated more 1,000 square miles of the Gulf of Mexico’s seafloor, but the exact long-term ecological effects are still unknown, said a group of scientists who are tracking 125 major petroleum hydrocarbons settled to the deep ocean floor when the failed Macondo well discharged 160 million gallons of crude oil into the water.
Climate change and other impacts from human activities are enabling jackals to spread into parts of Europe, scientists said after documenting the first living golden jackal in the Czech Republic. The mammal, native to northern Africa and southern Eurasia, was photographed by motion sensors cameras several times just 40 kilometers from Prague, according to a new study published in the open access journal ZooKeys.
“The habitat, where the golden jackal decided to settle, resembles the landscapes which these animals prefer in their natural distribution area, the Balkans – an open grass-shrubland surrounded by a forest. It is one of the warmest areas in the country, with mild winters.The observed animal was mostly active at dusk and dawn, with majority of the sightings occurring in the morning hours,” said researcher Klára Pyšková, who co-authored the paper with a group of researchers from Charles University and Institute of Botany of the Czech Academy of Sciences, among them her supervisors Ivan Horáček and David Storch. Continue reading “Wildlife: Jackals spreading into central Europe”→
Jaguars making their from Mexico back to the southwestern U.S. apparently won’t be getting much help from the U.S. Fish and Wildlife Service. The agency this week released a draft recovery plan that puts the conservation burden on Mexico. The plan’s criteria for recovery and removal of the jaguar from the “endangered” list could be met without any jaguars occupying any of their vast historic range in the United States, according to wildlife watchdogs with the Center for Biological Diversity.
The draft was released just a short time after a second jaguar was documented in the Southwest. Between 2011 and 2015, another jaguar was seen several times around the Santa Rita Mountains southeast of Tucson. Another jaguar called “Macho B” was photographed repeatedly from 1996 until he was killed by the Arizona Department of Game and Fish as a result of a botched capture operation in 2009.
“Jaguars are making their presence known in the southwestern United States so it’s disappointing to see the U.S. Fish and Wildlife Service put the focus of jaguar recovery solely in Mexico,” said Michael Robinson of the Center for Biological Diversity. “By excluding the best remaining unoccupied jaguar habitat, this plan aims too low to make a difference in saving the jaguar. It’s an extinction plan, not a recovery plan.” Continue reading “Draft plan for jaguar recovery panned by wildlife advocates”→
New measurements taken in the ocean near a massive East Antarctica ice sheet confirm that warm water is melting the ice from below. The new data will help scientists determine how fast the Totten Ice Shelf will melt. In all, it contains enough water to raise global sea level by 3.5 meters, according to a new study published last week in Science Advances.