updated_rmax_data.csv (10.73 kB)
Life histories for 94 chondrichthyans used to calculate updated estimates of maximum intrinsic rate of population increase
dataset
posted on 2016-05-04, 00:45 authored by Sebastián PardoSebastián Pardo, Holly KindsvaterHolly Kindsvater, John D. Reynolds, Nicholas DulvyNicholas DulvyThis dataset includes life history parameters for 94 chondrichthyans used to calculate updated estimates of maximum intrinsic rate of population increase (rmax) as shown in Pardo et al. (2016). The data here was primarily obtained from Garcia et al. (2008), however we have excluded species from their dataset that did not have values for maximum age or litter size. We have included life history parameters for the Basking Shark (Cetorhinus maximus).
Life history traits included are maximum size (length_max), von Bertalanffy growth coefficient (k), age at maturity (age_mat), maximum age (age_max), average lifespan (ave_lifespan) which was defined as the midpoint between age at maturity and maximum age, litter size (l), and breeding interval (i).
This dataset includes three different rmax estimates: published estimates of rmax based on the method outlined in Garcia et al. (2008) (rmax_published_previous), rmax estimates we recalculated using the method outlined in Garcia et al. (2008) (rmax_previous_recalc), and updated rmax estimates we calculated using the method outlined in Pardo et al. (2016) (rmax_updated_recalc).
Given that there are slight discrepancies in rmax estimates for a few species between published values from Garcia et al. (2008) and our recalculated estimates using their methodology, we used our own rmax recalculation using the previous method to compare with our rmax estimates based on our updated method.
References:
García VB, Lucifora LO, Myers RA (2008) The importance of habitat and life history to extinction risk in sharks, skates, rays and chimaeras. Proceedings of the Royal Society of London, B 275: 83-89.
Pardo SA, Kindsvater HK, Reynolds JD, Dulvy NK. Maximum intrinsic rate of population increase in sharks, rays, and chimaeras: the importance of survival to maturity. Canadian Journal of Fisheries and Aquatic Sciences, available at http://dx.doi.org/10.1139/cjfas-2016-0069.
Life history traits included are maximum size (length_max), von Bertalanffy growth coefficient (k), age at maturity (age_mat), maximum age (age_max), average lifespan (ave_lifespan) which was defined as the midpoint between age at maturity and maximum age, litter size (l), and breeding interval (i).
This dataset includes three different rmax estimates: published estimates of rmax based on the method outlined in Garcia et al. (2008) (rmax_published_previous), rmax estimates we recalculated using the method outlined in Garcia et al. (2008) (rmax_previous_recalc), and updated rmax estimates we calculated using the method outlined in Pardo et al. (2016) (rmax_updated_recalc).
Given that there are slight discrepancies in rmax estimates for a few species between published values from Garcia et al. (2008) and our recalculated estimates using their methodology, we used our own rmax recalculation using the previous method to compare with our rmax estimates based on our updated method.
References:
García VB, Lucifora LO, Myers RA (2008) The importance of habitat and life history to extinction risk in sharks, skates, rays and chimaeras. Proceedings of the Royal Society of London, B 275: 83-89.
Pardo SA, Kindsvater HK, Reynolds JD, Dulvy NK. Maximum intrinsic rate of population increase in sharks, rays, and chimaeras: the importance of survival to maturity. Canadian Journal of Fisheries and Aquatic Sciences, available at http://dx.doi.org/10.1139/cjfas-2016-0069.
