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Author Wehner, R.
Title Astronavigation in Insects Type Journal Article
Year 1984 Publication Annual Review of Entomology Abbreviated Journal Annu. Rev. Entomol.
Volume 29 Issue 1 Pages 277-298
Keywords (up) Animals
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ISSN 0066-4170 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 624
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Author Baatrup, E.; Bayley, M.
Title Quantitative analysis of spider locomotion employing computer-automated video tracking Type Journal Article
Year 1993 Publication Physiology & Behavior Abbreviated Journal Physiology & Behavior
Volume 54 Issue 1 Pages 83-90
Keywords (up) Animals
Abstract The locomotor activity of adult specimens of the wolf spider Pardosa amentata was measured in an open-field setup, using computer-automated colour object video tracking. The x,y coordinates of the animal in the digitized image of the test arena were recorded three times per second during four consecutive 12-h periods, alternating between white and red (lambda > 600 nm) illumination. Male spiders were significantly more locomotor active than female spiders under both lighting conditions. They walked, on average, twice the distance of females, employed higher velocities, and spent less time in quiescence. Both male and female P. amentata were significantly less active in red light (simulated dark environment) than in white light. The results also revealed that P. amentata administers its walking velocity and periods of quiescence according to consistent distributions, which can be approximated by simple mathematical expressions. It was found that this species spends exponentially decreasing time at increasing velocities. The number of quiescent periods, however, follow a power decay distribution at increasing quiescent period duration.
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ISSN 0031-9384 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 663
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Author Craig, C.L.
Title Insect Perception of Spider Orb Webs in Three Light Habitats Type Journal Article
Year 1988 Publication Functional Ecology Abbreviated Journal Functional Ecology
Volume 2 Issue 3 Pages 277
Keywords (up) Animals
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ISSN 0269-8463 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 665
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Author Craig, C. L.; Bernard, G. D.
Title Insect Attraction to Ultraviolet-Reflecting Spider Webs and Web Decorations Type Journal Article
Year 1990 Publication Ecology Abbreviated Journal
Volume 71 Issue 2 Pages 616–623
Keywords (up) Animals
Abstract The foraging performance of any predator is dependent on its ability to locate prey. All spiders produce silks and many locate insects by producing silk traps. We measured the reflective properties of silk produced by primitive, non-web-weaving spiders and derived aerial web spinners. We found that primitive spiders produce silks that reflect ultraviolet (UV) light and primitive aerial web weavers spin UV-reflecting catching silks that attract Drosophila. Derived, web-spinning spiders in the genus Argiope, however, produce catching silks that exhibit low reflectivity in the UV and, in fact, reflect little light at all. Nevertheless, Argiope decorate their webs with bright, UV-reflecting bars and crosses that attract prey. We found that more insects were intercepted per hour by decorated webs with spiders than by undercorated webs from which the spider had been removed. In addition, within-web analyses showed that when only half of a web was decorated, more insects were intercepted by the decorated halves than the undecorated web halves. We propose that UV-reflecting decorative silks, together with the UV-reflecting body surfaces of A. argentata, act as a visual display that attracts prey.
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Publisher Ecological Society of America Place of Publication Editor
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 666
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Author Gillespie, R. G.
Title The Mechanism of Habitat Selection in the Long-Jawed Orb-Weaving Spider Tetragnatha Type Journal Article
Year 1987 Publication American Arachnological Society Abbreviated Journal
Volume 15 Issue 1 Pages 81-90
Keywords (up) Animals
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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Area Expedition Conference
Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 669
Permanent link to this record