Entomology, from the Greek words entomos (meaning segmented) and logia (meaning study of) is the scientific discipline focused on the study of insects. It is a sub-discipline of zoology (the study of animals).
Worldwide, the number of insect species is estimated conservatively by the International Union for Conservation of Nature to approach (or likely exceed) 950,000. Insects are critical components of Earth's ecological systems in their varied roles that range from pollinators to disease vectors to foodstuffs rich in protein.
This article was prepared for the U.S. Forest Service by Matthew Shepherd and Scott Hoffman Black of The Xerces Society for Invertebrate Conservation, with contributions from...
West Nile VirusLast Updated on 2012-08-23 00:00:00
Since 1999, more than 30,000 people in the United States have been reported as getting sick with West Nile virus. Infected mosquitoes spread West Nile virus (WNV) that can cause serious, life altering disease.
West Nile Virus: What You Need To Know
CDC Fact Sheet
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What Is West Nile Virus?
West Nile virus (WNV) is a potentially serious illness. Experts believe WNV is established as a seasonal epidemic in North America that flares up in the summer and continues into the fall. This fact sheet contains important information that can help you recognize and prevent West Nile virus.
What Can I Do to Prevent WNV?
New! Prevention measures consist of community-based mosquito control programs that are able to reduce vector populations, personal protection measures to... More »
Geophony, Biophony, and AnthrophonyLast Updated on 2012-08-09 00:00:00
What do these words mean? Biophony is the melodic sound created by such organisms as frogs and birds; geophony, the composition of non-biological sounds like wind, rain and thunder; and anthrophony, the conglomeration of noise spawned by human activity.
Studying Nature's Rhythms:
Soundscape Ecologists Spawn New Field
The following Discovery article is part is part four in a series on the National Science Foundation's Science, Engineering and Education for Sustainability (SEES) investment. Visit parts one, two, three, five, six and seven in this series.
Listen to biophony, geophony, anthrophony: the 'music' of Planet Earth
The following is part four in a series on the National Science Foundation's Science, Engineering and Education for Sustainability (SEES) investment. Visit parts one, two, three, five, six and seven in this series.
Geophony.... More »
Insect RepellentLast Updated on 2012-07-18 00:00:00
Insect Repellent Use and Safety
Do Not Ignore Insect Repellent Directions
Applying insect repellant is not complicated, but before you do, be sure to read the label for any warnings and to see the active ingredients. All insect repellents, including products combined with sunscreen, should be used according to instructions on the label.
Insect repellents can be used at all ages unless the label specifically states an age limitation or precaution. As long as you read and follow label directions and take proper precautions, insect repellents with active ingredients registered by the U.S. Environmental Protection Agency (EPA) do not present health or safety concerns.
The U.S. Food and Drug Administration (FDA) recommends using products that contain active ingredients registered by EPA for use on skin and clothing. EPA registration of insect repellent active ingredients... More »
Predators: influence over habitatsLast Updated on 2012-06-14 00:00:00
Study of grasshoppers' diets shows that animals are an important part of organic matter decomposition. While being hunted, prey animal diets may affect how soil releases carbon dioxide.
Predators Have Outsized Influence Over Habitats
A grasshopper's change in diet to high-energy carbohydrates while being hunted by spiders may affect the way soil releases carbon dioxide into the atmosphere, according to research results published in the journal Science.
Grasshoppers like to munch on nitrogen-rich grass because it stimulates their growth and reproduction. But when spiders enter the picture, grasshoppers cope with the stress from fear of predation by shifting to carbohydrate-rich plants, setting in motion dynamic changes to the ecosystem they inhabit, scientists have found.
"Under stressful conditions they go to different parts of the 'grocery store'... More »
Transgenerational effect of antibioticsLast Updated on 2012-05-01 00:00:00
The study shows a toxic effect across generations—of importance for its potential for cross-generational effects on the fertility of food animals and humans—which has never been examined before.
Study Is First to Show
Transgenerational Effect of Antibiotics
Antibiotic commonly used in animal production
passes from father to son in pseudoscorpions
In a paper published in Nature's open access journal Scientific Reports, researchers at the University of Nevada, Reno, report that male pseudoscorpions treated with the antibiotic tetracycline suffer significantly reduced sperm viability and pass this toxic effect on to their untreated sons. They suggest a similar effect could occur in humans and other species.
A pseudoscorpion, whose scientific name is Cordylochernes scorpioides, is a tiny eight-legged arachnid that has the false appearance of a... More »
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