Wednesday, July 07, 2010

Delaware Record Summer Heat -103 degrees 070610

Delaware Record Summer Heat -103 degrees 070610
Delaware Record Summer Heat -103 degrees 070610
Originally uploaded by sneakerdoggy

A photo-record of a very hot day, July 6, 2010, in New Castle County, Wilmington, Delaware. The thermometer reads 103 degrees and this matches the official high as recorded as the airport.  A high temperature record was also broken for July 7, when the high temperature was again 103 degrees.  The airport recorded it as 101 degrees.  This record is mentioned in an article about heat waves in wikipedia:
http://en.wikipedia.org/wiki/Heat_wave
https://en.wikipedia.org/wiki/List_of_heat_waves

Interested in weather?  Here's book that I enjoy reading:
http://www.powells.com/book/weather-a-guide-to-phenomena-forecasts-golden-2221199413598/1-3

If you find any links on my blog that are not working, please let me know by making a comment, so that I can fix or eliminate the bad links.

Saturday, July 03, 2010

Why Is Evolution Important Now? Understanding Predation

Why Is Evolution Important Now?  Understanding why some chili peppers are hot and some are not
http://www.sciencedaily.com/releases/2008/08/080811195315.htm

WHY IS EVOLUTION IMPORTANT NOW? Understanding Predator-Prey Relationships – An Evolutionary Arms Race
Read the following article:

University of Washington (2008, August 12). Bugs Put The Heat In Chili Peppers. ScienceDaily. Retrieved July 2, 2010, from http://www.sciencedaily.com/releases/2008/08/080811195315.htm

Name _______________________________ Period _______________
Note-taking Worksheet

Chili peppers have these predators:

__________________

__________________

__________________

__________________

Predators are attracted to and eat peppers because of these biochemicals:

__________________

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This is the predator that helps disperse the pepper seeds:

__________________

This is the predator that kills the pepper seeds:

__________________

Chili peppers produce this biochemical as a defense against attack of a microbe predator:

__________________

This predator does not sense and is not harmed by eating capsaicin:

__________________

This predator is inhibited by capsaicin:

__________________

These predators can sense “heat” of the capsaicin, but still eat the peppers without being harmed:

__________________

Hot peppers are most often found growing in areas with larger populations of:

__________________

When you have filled in all the blanks in the note-taking worksheet, you can design a concept map, or chart that contains the important facts about the peppers and bugs being part of an evolutionary arms race within a food web.

This video clip shows another predator-prey evolutionary arms race that is demonstrated by the relationships between garter snakes and toxic newts:
http://www.pbs.org/wgbh/evolution/library/01/3/l_013_07.html


The following posts also address the question: Why is Evolution Important Now?

Why Is Evolution Important Now? Understanding Extinction and Our Environment
http://cavalierscience.blogspot.com/2009/03/why-is-evolution-important-now.html

Why Is Evolution Important Now? Disease Prevention
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now-disease.html

Why Is Evolution Important Now? Antibiotic Resistance
http://cavalierscience.blogspot.com/2009/02/why-is-evolutions-important-now.html

Why Is Evolution Important Now? Understanding Diseases and Food Production
http://cavalierscience.blogspot.com/2009/02/why-is-evolution-important-now.html

The Human Environment (McGraw-Hill series in population biology)

Why Is Evolution Important Now?  Battling the Bedbug Epidemic and Cockroach avoidance of bait - Pesticide Resistance
http://cavalierscience.blogspot.com/2011/03/why-is-evolution-important-now-battling.html