Data for: "Carnivorous bats hunt songbirds on the wing at high altitudes "
Description
In this paper, we are testing the hypothesis that greater noctule bats (Nyctalus lasiopterus) search for, catch and eat nocturnally migrating songbirds on the wing. We attached miniature multi-sensor loggers to the back of bats that recorded sound and movement of the bats while they were hunting. To reconstruct the findings in our paper: "Carnivorous bats hunt songbirds on the wing at high altitudes", we have here provided the code and data to reproduce the major findings of the paper: Figure 01: Comparison of the hunting behavior when catching insects and birds We compare the biosonar behavior measured as: - the duration of buzzing per hunting event (Figure 1a) -The number of buzzes per hunting event (Figure 1b) - the altitude at which the bats detect their prey (Figure1c). - The changes in altitude the bats are covering from prey detection to prey capture (Figure 1d) - The duration of the mastication after prey captures. (Figure 1e) This data is saved in the excel file: Figure01Data.xlsx and can be plotted in matlab using the script: Figure01.m Figure 3a-d: The sensory and movement behavior during the last stage of the hunting events Here we compare the movement behavior based on 3 different variables: - The highest change in pitch measured in Euler angles (Figure 3a) - The highest change in roll measured in Euler angles (figure 3b) - The maximum tortuosity measured from a straight line (0) to circular movement (1) (Figure 3c) The sensory behavior is summarised as the duration of each individual buzz emitting during all hunting events and is plotted in ms. This data is saved in the excel file: Figure03Data.xlsx and can be plotted in matlab using the script: Figure03.m To make the plots, you need to add the helpfiles violin.m, violin_simple.m and raincloud_plot_separated.m to your path. You can also choosThis data is saved in the excel file: Figure01Data.xlsx and can be plotted in matlab using the script: Figure01.m
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Steps to reproduce
We used the procedure of "A 2.6-g sound and movement tag for studying the acoustic scene and kinematics of echolocating bats" (https://besjournals.onlinelibrary.wiley.com/doi/10.1111/2041-210X.13108). We attached these tags to the back of greater noctule bats in Donana National Park. Detailed description of the methods can be found in the paper "Carnivorous bats hunt songbirds on the wing at high altitudes "