Researchers report harmful levels of toxic lead were found in the bones of 46% of bald eagles sampled in 38 states.
Similar rates of lead exposure were found in golden eagles, according to their study Thursday in the journal Science.
Scientists say the raptors likely consumed carrion or prey contaminated by lead from ammunition or fishing tackle. Bald eagles are one of America’s most celebrated conservation success stories. But scientists say that high lead levels still suppress eagle population growth and reduce their ability to withstand future challenges, such as climate change and infectious diseases.In 2019, California became the first state in the country to ban lead bullets for hunting. However, the study's authors say educating hunters about the effects of lead ammunition may be better than bans.
“The hunting community remains mostly unaware,” Vincent Slabe, a wildlife biologist at the nonprofit Conservation Science Global, told the American Association for the Advancement of Science."In the hunter education programs I’ve done, they’re really receptive to this issue.” .Page-below > .RichTextModule {display:none;} .Page-below .Link {font-size: 12px; padding: 5px 10px;border: 1px solid #005687;border-radius: 4px;font-family:"proxima-nova", sans-serif; } Report a typo
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Stars snap Avalanche 19-game point streak behind Jake Oettinger’s career-high 46 savesDENVER — With 17:40 left in the Stars’ 4-1 win over the league-leading Avalanche on Tuesday night, Jake Oettinger flashed a smile. Play was stopped. His...
続きを読む »
Nearly half of US bald eagles suffer lead poisoning, study indicatesAmerica’s national bird is more beleaguered than previously believed, with nearly half of bald eagles tested across the U.S. showing signs of chronic lead exposure, according to a study published Thursday
続きを読む »
Nearly Half of U.S. Bald Eagles Tested Suffer Lead PoisoningAmerica’s national bird is more beleaguered than previously believed, with nearly half of bald eagles tested across the U.S. showing signs of chronic lead exposure.
続きを読む »
Nearly Half of US Bald Eagles Have Lead PoisoningLead is a neurotoxin that even in low doses impairs an eagle’s balance and stamina, reducing its ability to fly, hunt and reproduce.
続きを読む »
Demographic implications of lead poisoning for eagles across North AmericaNew research in Science looked at lead levels in samples collected from bald and golden eagles across the United States, finding that almost half of all animals sampled had chronic, toxic levels of lead. ScienceResearch
続きを読む »
Most U.S. eagles suffer from lead poisoning, study suggestsThe primary source of exposure is ammunition—as eagles scavenge on the carcasses of animals shot by hunters, they can ingest lead fragments from rifle rounds and shotgun pellets
続きを読む »