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Vertical-surface navigation in the Neotropical whip spider Paraphrynus laevifrons (Arachnida: Amblypygi)

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Abstract

Studies on whip spider navigation have focused on their ability to locate goal locations in the horizontal plane (e.g., when moving along the ground). However, many species of tropical whip spiders reside and move along surfaces in the vertical plane (e.g., trees). Under controlled laboratory conditions, the current study investigated the ability of the tropical whip spider, Paraphrynus laevifrons, to return to a home shelter on a vertical surface in the presence of numerous, similar and competing refuge sites, as well as the distribution of navigational errors in the vertical, horizontal and diagonal plane. We also assessed the relative importance of sensory cues originating from a previously occupied home shelter compared to the position of a previously occupied shelter in guiding shelter choice. It was found that P. laevifrons displays robust fidelity in re-locating a home shelter on a vertical surface. When navigational errors did occur, they were not significantly different in all three directions. Additionally, cue-conflict test trials revealed that cues associated with an original home shelter, likely self-deposited chemical signals, were more important than sources of positional information in guiding the shelter choice of P. laevifrons.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We are grateful for financial support from the National Geographic Society and the National Science Foundation (IOS 1457304). The data presented were collected by Meghan E. Moore and submitted in partial fulfillment for the requirements of a Master of Arts degree at Bowling Green State University.

Funding

Funding was provided by a grant from the National Geographic Society and the National Science Foundation (IOS 1457304).

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All authors contributed to the study. Conceptualization—VPB, DDW. Formal Analysis—VPB, DDW, VJC. Writing: PC, DDW, VJC, DN, EAH, VPB. All authors approved the final manuscript.

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Correspondence to Patrick Casto.

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Casto, P., Wiegmann, D.D., Coppola, V.J. et al. Vertical-surface navigation in the Neotropical whip spider Paraphrynus laevifrons (Arachnida: Amblypygi). Anim Cogn 23, 1205–1213 (2020). https://doi.org/10.1007/s10071-020-01420-0

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  • DOI: https://doi.org/10.1007/s10071-020-01420-0

Keywords

Navigation