... . Yet the expeditions, which included surveys at unexplored depths, have revealed disturbing declines in sea-life populations and evidence that human impacts have stretched down deeply in the gulf.
... informed decisions about protecting the world's fragile coral reefs.
"Our maps of cumulative human impacts are a powerful tool for synthesizing and visualizing the state of the oceans," said Selkoe, ...
Tree rings and seafloor sediment cores can show the effects of both climate and human impacts on coastal ecosystems of New Zealand over the past 1,000 years.
... understand the processes driving the observed natural patterns of species distributions. Mountain ranges are hotspots of biodiversity on Earth. They are also severely impacted by human activities...
... Dr. Timothy H. Tear, of The Nature Conservancy, comments, "Deposited pollutants have tangible human impacts. Mercury contamination results in fish that are unsafe to eat. Acidification kills fish and ...
... as 1867 and reported them in the most recent issue of the Journal of the Torrey Botanical Society.
Human impact on the park has continued since the Revolution. Although the land did not become a park ...
... generally thought to be climate change or some form of human impact. People only arrived in Tasmania around ... megafauna disappeared about 46,000 years ago, soon after humans first settled the continent ...
... has approved a new international research programme designed to understand the relationship between humans and the ecosystems that provide essential life-supporting services. The decision was made ...
With their sedentary lifestyles and filter-feeding habits, clams have been silent witnesses to the changes that humans have inflicted upon their waters. These clams are silent no more, as Dr. Ruth H. ...
... various animals.
But along with the excitement of discovery came disturbing signs of human impacts in the gulf's depths, and, in particular, signals that overfishing has decimated ecosystems. Large ...
... food web. Insect population crashes can impact higher levels of the food chain.
"Any ...
Although the research highlights new concerns about human impact on native species and ecological communities, ...
... "Although this is the first study of its kind, we assume this human impact is broad, because our predatory niche ... don't know how these rapid changes will impact larger ecosystems, added Darimont. "Size ...
... view of earth scientists on global warming and the human impact factor, Doran and Kendall Zimmerman ... risen compared to pre-1800s levels, and has human activity been a significant factor in changing mean ...
... high correlation is good news for marine managers in areas of the world that may be in need of maps of human impacts, but don't have the resources to undertake their own tailored analysis."
The study ...
... , that in turn affect a small amount of coastal area," said Halpern. "In these places with little impact from human activities on land, marine conservation can and needs to focus primarily on what is ...
