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 ...

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 ...

A previously-developed Food Limitation Index (FLI) for larvae of the dragonfly Anax junius (Drury) was used to measure the food consumption of these animals in four water bodies in southern Ontario.

Carlsbad Caverns National Park staff recently collected dragonfly larvae for the Dragonfly Mercury Project. The project is ...

(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 ...

Public participants help collect dragonfly larvae and record field data. Park staff work to engage students, conservation corps, interns, and others in this hands-on research experience.

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 ...

Mercury pollution from power plants and mining operations can end up in our air and water. But it’s tricky to predict just how much of that environmental mercury will make its way into our food—and ...

(Nanowerk News) It is a high-speed movement: within fractions of a second the mouthparts of the dragonfly larvae spring forwards to seize its prey. For decades, researchers had assumed that this ...

A new study has unveiled surprising findings about mercury pollution: where it comes from and how it moves through the environment vary significantly depending on the ecosystem. In drier regions, most ...

A citizen science program that began over a decade ago has confirmed the use of dragonflies to measure mercury pollution, according to a study in Environmental Science & Technology. The national ...

Research confirms dragonfly larvae as ''biosentinels'' to indicate mercury pollution and presents the first-ever survey of mercury pollution in the U.S. National Park System. A citizen science program ...