Title: Using Bean Beetles (Callosobruchus maculatus) in Guided Inquiry Exercises in the Biology Laboratory
Url: http://www.ableweb.org/volumes/vol-37/v37reprint.php?ch=74
Author: Greg K. Fitch
Jordan Burns
Author's Address: Avila University, School of Science and Health, Kansas City, MO
Email Address: greg.fitch@avila.edu
Description: Due to institutional and instructor constraints, a guided inquiry exercise nearly always requires a “system” that can
be manipulated by students. Reproducing bean beetles (Callosobruchus maculatus) constitute such a system. Details about
the laboratory culture and life cycle of Callosobruchus maculatus are readily available, as are ideas for guided inquiry
exercises using bean beetles (e.g., see www.beanbeetles.org). An overarching question to be investigated using this system
might be, “What factors influence the reproductive success of bean beetles?” Typically, in a guided inquiry exercise, a
student group will choose to test the influence of an experimental variable on a dependent variable. For example, students
might hypothesize that living under conditions of high relative humidity (RH), compared to low RH, will result in an increase
in (a) the mean number of eggs laid by newly mated virgin female beetles, (b) the mean number of days lived by newly
emerged female beetles, (c) the mean time to emergence (TTE) of the offspring of newly mated female beetles (with TTE
defined as the number of days elapsed between mating of the mother and emergence from the bean of her adult offspring),
and/or (d) the emergence success (ES) of eggs laid by newly mated female beetles (with ES defined as the proportion of eggs
laid resulting in successfully emerged adult offspring). As another example, students might hypothesize that being reared on
mung beans, as opposed to on blackeye peas (BEP), will result in an increase in one or more of the above four dependent
variables.
Keywords: guided inquiry
bean beetle
Topic: Animal Physiology
Teaching Tools and Techniques
Animal Behavior
BEN Subject/Discipline Taxonomy: Entomology
Invertebrate Biology
Physiology
Teaching Tools and Techniques
Reproductive Biology
Learning Resource Type: Laboratory exercise (DCMI Type Vocabulary)
Context: High school upper division 11-12
Undergraduate lower division 13-14
Format: pdf
Access Rights: This resource is for ABLE members only.
Rights: http://www.ableweb.org/copyright-policy/
Conference Location & Year: Boston University (2015)
Cumulative Rating: NOT YET RATED
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