From migration routes


— the legal issue in the case concerns where the lack of action constitutes a “constructive submission” by the states that epa is required to act upon under the clean water act. the court held that it is. read : court says EPA must regulate river temperatures


— one analysis has projected that between 1.7 million and 3.7 million gallons of freshwater will be required to build every 5 miles of the new border wall through protected areas in the most arid reach of the sonoran desert. read : at the mexican border, the battle for endangered species is as much about water as about the wall


— overall, many of the changes finalized last month are far more modest than environmentalists and the media have portrayed. and some of the more substantive changes, such as restoring the regulatory distinction between threatened and endangered species, will likely reduce conflicts with landowners and encourage more collaboration in species-recovery efforts — all without reducing the act’s effectiveness at preventing extinction. read : new endangered-species regulations are good for species


— that device is connected by cable to a buoy floating above that transmits data by satellite to scientists on shore. from there, captains can be alerted to slow their ships down or reroute. read : california sound system tries to keep whales and ships apart


— an approach like this one can help modernize the classification system, what the authors are doing, it’s almost like a plea for more data and more information to make better and clearer and more accurate assessments of where species are living. the researchers believe that their finding probably extends to mammals and amphibians as well. read article : is the endangered species list missing hundreds of species of birds?  


— the iucn is the most comprehensive and recognized listing of the status of species in the world. the list categories range from least concern (lu), meaning the species is still widespread and abundant, to extinct (e), meaning there are no known individuals still existing, whether in the wild or in captivity. the whale shark was previously classified as vulnerable (vu), this next level, endangered (en), kicks this status up to a high risk of extinction. read article  it’s official: ‘butanding’ an endangered species    


— “you can’t protect and recover endangered species without protecting the places they live.” read press release from Center for Biological Diversity : new regulation allows widespread destruction of habitat


the unprecedented scale of the wildlife crisis in the united states requires policymakers to develop new tools and strategies to halt the decline of wildlife species before they become imperiled and need the protection of the esa. this report proposes the establishment of a new category of wildlife designation—at risk— read article : confronting america’s wildlife extinction crisis


— birds that migrate at night make different sounds and give different calls while flying in the dark, than they do in the day. read article : peregrine falcon population sees record growth more : falcons in migrating season over the cape and islands


— studies have documented negative effects of livestock grazing, the usfs rocky mountain experimental station found that 100 years of continual cattle grazing virtually halted the growth of new sycamores. because of their ecological impact, cattle generally are banned from riverside grazing. horses, however, are not managed, as a result, are a threat to the wildlife species on the riverbanks read article : salt river horses destroying endangered bird habitat, wildlife experts say


— many residents take pride in this piece of their natural heritage, and there has been ample interest in a citizen science program where private citizens are trained to help monitor trail cameras and document the presence of the species.  scientists are now determining whether the development of a “payment for ecosystem services” program would further engage citizens and private landowners and promote jaguar conservation in the u.s. borderlands region read article : conserving arizona’s resident jaguars