Finalexamnoanswers - BIEB 166: Animal Behavior &...

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Student: ____________________________ FINAL EXAM, Latest revision: 4/14/03, 12:30 PM Page 1 of 14 Student’s score:_______________ Name STUDENT ID Number FINAL EXAM BIEB 166, Animal Behavior Spring Quarter, 2002 This exam should consist of 14 pages plus one page describing BIEB 167; please check that your exam is complete. You may keep the last page, but you need to turn in the rest of the exam. Please turn in your exam to the front of the room AND MAKE SURE THAT YOU SIGN YOUR NAME ON THE PRINTOUT. EXAMS THAT DO NOT HAVE A MATCHING SIGNATURE ON THE PRINTOUT WILL NOT BE GRADED. Write your name in the space provided on each page . Please write your answers only in the spaces provided on each page. Do not write on the back of the page Allot time to each question based upon its point value, and budget your time carefully. Good luck!
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Student: ____________________________ FINAL EXAM, Latest revision: 4/14/03, 12:30 PM Page 2 of 14 Student’s score:_______________ FINAL EXAM 1. (18 pts total) The legendary phoenix has a special affinity for myrrh, a tree resin that is used for incense and comes largely from the area around Oman. Phoenix males collect myrrh during the spring and rub it against their wing feathers, which sport large red patches against a black background. They flash their red patches at a rate of 10 Hertz to visiting females. Females search out males by orienting towards the odor. (1) First they fly around at random. (2) When they encounter the myrrh odor, they fly in the direction of the odor, using both nostrils to simultaneously compare the concentration gradient of myrrh odor. (3) Once they reach the male, they watch as he flashes his red wing patches and simultaneously wafts his myrrh odor towards them. She responds by performing a dance where she first bobs her head, then hops around on her left foot while crowing. In order to learn more about the mating system, you have built a robot phoenix. You succeed in attracting females and begin to simplify your model. You find that a cylinder painted with red stripes and coated with myrrh successfully attracts females. In tests, only 50% of females approach naturally advertising males flashing their red patches at 10 Hz. However, females are especially attracted to a cylinder that rotates at 100 Hz and 100% are attracted to such a stimulus when it is coated with raw myrrh of the same concentration as is naturally found in the average male phoenix. In the lab, you isolate the essential oils contained in myrrh. With this concentrated scent, you coat the cylinder. Females are also especially attracted to the concentrated myrrh-oil coated cylinder rotating at 10 Hz (100% of females approach such a cylinder). a)
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This note was uploaded on 08/19/2010 for the course BIEB Bieb taught by Professor Holway during the Spring '09 term at UCSD.

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Finalexamnoanswers - BIEB 166: Animal Behavior &...

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