Everyone knows all about the epic breeding journey taken each year by generations of monarch butterflies between Mexico and Canada, right? Not so fast, say researchers including University of Guelph biologists.
Plants & Animals
Aug 7, 2013
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Our internal circadian clock regulates daily life processes and is synchronized by external cues, the so-called Zeitgebers. The main cue is the light-dark cycle, whose strength is largely reduced in extreme habitats such ...
Plants & Animals
Jun 19, 2013
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Mate competition by males over females is common in many animal species. During mating season male testosterone levels rise, resulting in an increase in aggressive behavior and masculine features. Male bonobos, however, invest ...
Plants & Animals
Jan 23, 2012
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Meteorologists can see a busy hurricane season brewing months ahead, but until now there has been no such crystal ball for tornadoes, which are much smaller and more volatile. This information gap took on new urgency after ...
Earth Sciences
Jan 19, 2012
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The Chesapeake Bay houses a huge diversity of fish, birds, plants, and mammals. But to understand this vital habitat, University of Delaware scientists studied its tiniest inhabitants -- viruses -- and found that they play ...
Cell & Microbiology
Jul 19, 2011
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(PhysOrg.com) -- Previously rare big city storms - like a tornado Aug. 19 that downed trees and ripped off roofs in downtown Minneapolis and the powerful thunderstorms in New York City a day earlier - may not be so unusual ...
Earth Sciences
Sep 8, 2009
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Weather experts on Wednesday reduced the number of projected hurricanes in the north Atlantic this season to four, two of them major hurricanes with winds above 178 kilometers (111 miles) per hour.
Earth Sciences
Aug 4, 2009
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Tropical forests are experiencing increasing vapor pressure deficits (D), with possible negative effects on tree growth. However, the mechanisms by which climatic variability drives tree growth are poorly understood. The ...
Plants & Animals
Jul 13, 2023
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Particulate matter (PM), or atmospheric particulate matter, are microscopic particles of solid or liquid matter suspended in the air which adversely affect human health. Sources of urban particulate matter (UPM) can be natural ...
Environment
Nov 29, 2022
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Agricultural producers around the world must adapt to changing weather patterns. Much research has focused on mitigation strategies for crop production, but livestock producers face unique challenges.
Agriculture
Oct 7, 2022
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