such as "Introduction", "Conclusion"..etc
February 2007 — While Al Gore's film, An
Inconvenient Truth, has generated greater awareness of global warming,
most people remain unaware of the more rapid warming that has occurred
within major cities. In fact, large cities can be more than 10 degrees
hotter than their surroundings. These metropolitan hot spots, which
scientists refer to as urban heat islands, can stress the animals and
plants that make their home alongside humans. Until recently,
biologists had focused so much on the effects of global climate change,
that they had overlooked the effects of urban warming.
Now, an international team of biologists, led by Michael Angilletta
of Indiana State University, has shown that city animals have been
affected by urban heat islands. These researchers discovered that ants
within South America's largest city--São Paulo, Brazil--could tolerate
heat better than ants from outside this city. Their findings, to be
published in the online journal PLoS ONE, suggest that ants have
adjusted their physiology in response to urban warming.
"We don't know whether this pattern will hold up for other species
or other cities, but people should certainly be looking," said
Angilletta, an Associate Professor of Ecology and Organismal Biology.
"Ultimately, this research could help us to understand how species will
respond to global climate change."
Working closely with geographers from Indiana State University's
Center for Urban and Environmental Change, these biologists will soon
determine whether urban warming has affected species in other major
"We will quantify heat islands on the small scales that pertain to
organisms, initially in Indianapolis and later in other major cities
throughout the world," said Weng, an Associate Professor of Geography
and Director of Indiana State's Center for Urban and Environmental
"We will construct thermal maps using satellite images recorded over
several years. These maps will enable us to assess the potential
biological consequences of urban warming and identify suitable sites
for future experiments," Weng said.
This study will be published on February 28, 2007 in PLoS ONE, the
international, peer-reviewed, open-access, online publication from the
Public Library of Science (PLoS).
Source : Public Library of Science
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