Show simple item record

dc.contributor.authorMay, Holly Y.en_US
dc.date.accessioned2009-06-04T14:09:27Z
dc.date.available2009-06-04T14:09:27Z
dc.date.issued2007-06-04T14:09:27Z
dc.identifier.urihttp://hdl.handle.net/10464/1552
dc.description.abstractThis thesis examines how dominance status of crayfish alters responses to their own reflection. Crayfish are social animals that fight to develop a dominance hierarchy consisting of dominant and subordinate members. After socialization, crayfish were videotaped in an aquarium with mirrors on one half of the tank and a non-reflective plastic on the other half. Dominants paired for 14 days perform more cornering, turning, crossing and spent more time in a reflective environment versus a non-reflective environment. Subordinate crayfish exhibit more reverse walking in a mirrored environment while isolated crayfish show no preference for reflection. This change in behaviour occurs immediately for dominants paired for 30 min while subordinates require 3 days of pairing to exhibit the same behaviour as subordinate crayfish paired for 14 days. Thus, 30 min of pairing is required to enhance responses to a reflection observed in dominant crayfish while 3 days is required to decrease subordinate responses to a reflection. These findings propose that male socialized crayfish respond to their mirror image as they do a male conspecific. Their responses depend on both their dominance status and the length of socialization which suggests that crayfish are learning to behave in a characteristic manner as a result of their social experience.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectCrayfish.en_US
dc.subjectSocialization.en_US
dc.titleResponses of crayfish to a reflective environment /en_US
dc.typeElectronic Thesis or Dissertationen
dc.degree.nameM.Sc. Biological Sciencesen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Biological Sciencesen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US
refterms.dateFOA2021-07-16T11:01:29Z


Files in this item

Thumbnail
Name:
Brock_May_Holly_2007.pdf
Size:
5.741Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record