10.5061/DRYAD.R8N434D
Fleuren, Mike
Wageningen University & Research
van Leeuwen, Johan
Wageningen University & Research
Pollux, Bart
Wageningen University & Research
Data from: Superfetation reduces the negative effects of pregnancy on the
fast-start escape performance in live-bearing fish
Dryad
dataset
2019
Viviparity
Poeciliopsis turneri
Heterandria formosa
Phalloptychus januarius
reproductive traits
C-start
Poeciliidae
2019-11-19T00:00:00Z
2019-11-19T00:00:00Z
en
14742092270 bytes
2
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Superfetation, the ability to simultaneously carry multiple litters of
different developmental stages in utero, is a reproductive strategy that
evolved repeatedly in viviparous animal lineages. The evolution of
superfetation is hypothesized to reduce the reproductive burden and,
consequently, improve the locomotor performance of the female during
pregnancy. Here, we apply new computer-vision based techniques to study
changes in body shape and three-dimensional fast-start escape performance
during pregnancy in three livebearing fishes (family Poeciliidae) that
exhibit different levels of superfetation. We found that superfetation
correlates with a reduced abdominal distension and a more slender female
body shape just before parturition. We further found that body slenderness
positively correlates with maximal speeds, curvature amplitude and
curvature rate, implying that superfetation improves the fast-start escape
performance. Collectively, our study suggests that superfetation may have
evolved in performance-demanding (e.g. high flow or high predation)
environments to reduce the locomotor cost of pregnancy.
Fast-start_MATLAB_data_part1MATLAB File Archive containing tracking data
for individual fast-start manoeuvres. See README.txt for definitions of
variables.dryad_small.7z.001Fast-start_MATLAB_data_part2MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.002Fast-start_MATLAB_data_part3MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.003Fast-start_MATLAB_data_part4MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.004Fast-start_MATLAB_data_part5MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.005Fast-start_MATLAB_data_part6MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.006Fast-start_MATLAB_data_part7MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.007Fast-start_MATLAB_data_part8MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.008Fast-start_MATLAB_data_part9MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.009Fast-start_MATLAB_data_part10MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.010Fast-start_MATLAB_data_part11MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.011Fast-start_MATLAB_data_part12MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.012Fast-start_MATLAB_data_part13MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.013Fast-start_MATLAB_data_part14MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.014Fast-start_MATLAB_data_part15MATLAB File
Archive containing tracking data for individual fast-start manoeuvres. See
README.txt for definitions of
variables.dryad_small.7z.015Morphology_Fast-start_final-dataThe file
'Morphology_Fast-start_final-data.xls' is used for all the
statistical analyses in our manuscript. See the accompanying
README_Morphology_Fast-start_final-data.txt file for a specific content
description.