Skip to Content

3D trajectories and corresponding curvatures of 30 bat pairs Open Access

Social animals exhibit collective behavior wherein they negotiate to reach an agreement, for example to coordinate motion. Bats are unique that they use active sensory echolocation or “bio-sonar”, wherein they emit ultrasonic waves and sense echoes to navigate surroundings. In real bat swarms, understanding navigational leadership roles in light of their unique sensing capabilities is a challenge, and quantitative assessment of leadership has not been explored rigorously. Given the broadcast nature of bio-sonar, the active sensing of one individual can directly influence the motion of others, making the directionality of leadership unclear. Here, we seek to understand navigational leadership from direct observation of other bats in flight and formally measure the strength of influence of one individual on another by quantifying directional coupling using tools from dynamical systems and information theory. Pairs of bats were continuously tracked in a mountain cave in Shandong Province, China, from which three-dimensional path points were extracted and converted to one-dimensional curvature time series. Results demonstrate the evidence of information exchange between flying bat pairs. We find the identified coupling-relationships between bats are sensitive to the selected mathematical tools, their parameters and the bat behavior.

Descriptions

Resource type
Other Data
Creator
Subhradeep Roy
Nicole Abaid
Contributor
Keyword
3D trajectories
Rights
Attribution 3.0 United States

Date Created
07/12/2017
Subject
Interaction
Language
Identifier
Location
Related URL
Provenance

File Details

Depositor
sdroy@vt.edu
Date Uploaded
Date Modified
2017-07-12T10:55:15+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: octet-stream (Matlab v5 mat-file (little endian) version 0x0100)
Mime type: application/octet-stream
File size: 577806
Filename: data.mat
Original checksum: df055ac743fb2cc593a99c70a7afa15f
Activity of users you follow
User Activity Date
User sdroy@vt.edu has updated 3D trajectories and corresponding curvatures of 30 bat pairs 2 months ago
User sdroy@vt.edu has updated 3D trajectories and corresponding curvatures of 30 bat pairs 2 months ago
User sdroy@vt.edu has updated 3D trajectories and corresponding curvatures of 30 bat pairs 2 months ago
User sdroy@vt.edu has deposited data.mat 2 months ago