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There’s a symphony of sounds taking place under the ocean’s surface. But, what happens when these natural sounds are disrupted by things like a passing
Rain falls lightly on the ocean’s surface. Marine mammals chirp and squeal as they swim along. The pounding of surf along a distant shoreline heaves and thumps with metronomic regularity. These are the sounds that most of us associate with the marine environment. But the soundtrack of the healthy ocean no longer reflects the acoustic environment of today’s ocean, plagued with human-created noise. A global team of researchers set out to understand how human-made noise affects wildlife, from invertebrates to whales, in the oceans, and found overwhelming evidence that marine fauna, and their...
Offspring born in the last four years before a female primate’s death are more likely to die at a young age, before their mother dies, research finds. If these kids make it, the negative effects of losing their mother will reach across generations, lessening the survival of their future children as well. Researchers used data collected across decades from seven species of primates from multiple regions of the world. Knowing which mothers had died and when, researchers started with a look at the survival of these doomed mothers’ offspring. Matthew Zipple, a PhD candidate in biology at Duke...
December 7, 2020 at 10:30 am by Sean Crommelin The health of fishery stocks is of paramount importance to food security across the world. Billions of people rely on wild-caught and farmed seafood to provide their main source of protein. Unfortunately, fish stocks in recent years have found themselves in precarious positions following years of overexploitation. Freshly fished Larimichthys polyactis, or small yellow croaker, stored in plastic tubs and covered in ice. Courtesy of Cody Szuwalski As policymakers in the present day must contend with the overlapping effects of overfishing...
Camera traps document wildlife’s return to Gorongosa National Park Mozambique’s civil war, which raged from 1977 to 1992, took a devastating toll on wildlife in the country’s famed Gorongosa National Park, a 1,500-square-mile reserve at the southern tip of Africa’s Great Rift Valley. During the war, violence and food insecurity drove many people to hunt wild animals to feed themselves, resulting in the loss of more than 90% of the large mammals in the park. Nearly three decades later, animal populations have largely recovered, thanks to ongoing conservation and reintroduction efforts ...