Various forms of mercury are released naturally by volcanoes and weathering of rocks and soil. Human activities, such as mining or burning fossil fuels, can also release the element into the ...

Dragonfly larvae sampled from Cape Cod and Minuteman National Historical Park recently helped tell a much bigger story about mercury pollution in the U.S. A national study published this week in the ...

(a) Number of observation records per 500-m elevational band. (b) Number of genera and the number of their observation records in the database. (c) Cumulative number of observation records of each ...

A years-in-the-making model developed by the National Park Service and U.S. Geological Survey could offer a deeper look at mercury concentration levels on federal lands across the country — including ...

The Lockport Prairie Nature Preserve provides a summer home for a small group of an endangered species of dragonflies born and raised in a biology lab in South Dakota. A team of ecologists with the ...

Picture this: you’re sitting in your backyard, enjoying the sunshine, maybe sipping a lemonade. Then WHAM! A large, fast bug whizzes past your head. If that bug is a horsefly, you can worry a little ...

This is a preview. Log in through your library . Abstract Acidified bog ponds were the only previously reported habitat of larvae of the dragonfly Leucorrhinia dubia (Van der Lind.) (Odonata: ...

EDITOR'S NOTE: Rudolf Schilder, assistant professor of entomology at Penn State University, took some time to explain why Pennsylvania residents are seeing so many dragonflies this month. He studies ...