NDLI: The Effect of Visual Features on Jumping Spider Movements Across Gaps

Content Provider	Springer Nature Link
Author	Baker, Liv Kelty, Emma C. Jakob, Elizabeth M.
Copyright Year	2009
Abstract	Our objective was to determine whether an animal’s decisions to cross inhospitable open space are influenced by the visual characteristics of targets it can see across the space. We studied jumping spiders (Salticidae) in the genus Phidippus. We considered the effect of target size (short vs. tall) and distance (close vs. distant) in no-choice experiments. How often spiders approached close targets, regardless of target size, was not significantly different from how often they approached tall, distant targets, but they approached close targets of either size significantly more often than short, distant targets. When presented simultaneously with short, close and tall, distant targets the spiders’ choices did not differ significantly from random. We also tested for the effects of the contrast of targets with their background and found that the spiders crossed open space to reach green, but not white, targets, regardless of background. Finally, spiders were more likely to approach a green grass-like target rather than a target composed of geometric shapes. We conclude that target size, distance and appearance all influence the spiders’ willingness to cross open space.
Starting Page	350
Ending Page	361
Page Count	12
File Format	PDF
ISSN	08927553
Journal	Journal of Insect Behavior
Volume Number	22
Issue Number	5
e-ISSN	15728889
Language	English
Publisher	Springer US
Publisher Date	2009-03-31
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Perception movement gap crossing spiders salticidae Evolutionary Biology Animal Ecology Agriculture Neurobiology Behavioural Sciences Entomology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics Insect Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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