Data from: Background matching can reduce responsiveness of jumping spiders to stimuli in motion
Data files
Jan 05, 2024 version files 30.86 KB
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Data_Tan_et_al.zip
29.10 KB
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README.md
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Abstract
Motion and camouflage were previously considered to be mutually exclusive, as sudden movements can be easily detected. Background matching, for instance, is a well-known, effective camouflage strategy where the color and pattern of a stationary animal match its surrounding background. However, background matching may lose its efficacy when the animal moves, as the boundaries of the animal become more defined against its background. Recent evidence shows otherwise, as camouflaged objects can be less detectable than uncamouflaged objects even while in motion. Here, we explored if the detectability of computer-generated stimuli varies with the speed of motion, background (matching and unmatching) and size of stimuli in six species of jumping spiders (Araneae: Salticidae). Our results showed that in general, the responsiveness of all six salticid species tested decreased with increasing stimulus speed regardless of whether the stimuli were conspicuousness or camouflaged. Importantly, salticid responses to camouflaged stimuli were significantly lower compared to conspicuous stimuli. There were significant differences in motion detectability across species when the stimuli were conspicuous, suggesting differences in visual acuity in closely related species of jumping spiders. Furthermore, small stimuli elicited significantly lower responses than large stimuli across species and speeds. Our results thus suggest that background matching is effective even when stimuli are in motion, reducing the detectability of moving stimuli.
This README_Tan_et_al.txt was generated on 2023-05-05 by Min Tan and Daiqin Li.
-————————————-General Information———————————-
#This is the dataset for Min Tan, Jeremiah Y.O. Chan, Long Yu, Eunice J. Tan, and Daiqin Li. Background matching can reduce responsiveness of jumping spiders to stimuli in motion. Journal of Experimental Biology. doi:10.1242/jeb.246092
#Authors for Correspondence
- Daiqin Li; e-mail: dbslidq@nus.edu.sg
- Eunice J. Tan; email: ynctje@nus.edu.sg
#Period of Data Collection
July 2020 to May 2021
#Location of Data Collection
Singapore
#Description of Data Points
NA=unavailable record
#Funding sources
This study was supported and funded by the Singapore Ministry of Education AcRF grants (A-0008615-00-00 and A-8001085-00-00); the National Natural Science Foundation of China (31872229, 32270531).
-———————Overview for data_and_codes_Tan_et_al——————————–
#Folder List:
Codes_Tan_et_al: This folder contains R codes (in software) for data analyses and figures.
Data_Tan_et_al: This folder contains datasets (file type “csv”) for the Visual Responsiveness Assay and Background Matching Assay.
Missing data code: NA
-——————————–Methodological Information——————————–
#The data was collected following the protocol described in Tan et al. Background matching can reduce responsiveness of jumping spiders to stimuli in motion. Journal of Experimental Biology. doi:10.1242/jeb.246092
#The data was analysed with R 4.2.2.
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#More details for each folder can be found within the folders.