Data from: Reductions in prolonged swimming capacity following freshwater colonization in multiple threespine stickleback populations.

To determine which traits evolved in conjunction with, and may underlie, differences in performance capacity we measured a suite of traits known to affect prolonged swimming performance in fishes. While some candidate traits did not evolve (standard metabolic rate and two body shape traits), multiple morphological (pectoral fin size, shape and four body shape measures) and physiological (maximum metabolic rate; MMR) traits evolved in the predicted direction in both stream-resident populations.

However, data from F1 hybrids suggested that only one of these traits (MMR) had dominance effects similar to those of Ucrit in both locations. Overall, our data suggest that reductions in prolonged swimming performance were selected for in non-migratory populations of threespine stickleback, and that decreases in MMR may mediate these reductions in performance.

Usage notes

R_Script R script to re-produce analyses run in Dalziel et al. 2011 Fig2_Ucrit_R Raw prolonged swimming speed data (Ucrit) associated with Figure 2 Fig3_PecFinSA_R Raw pectoral fin surface area data (residuals of mass and standard length). Figure 3 of Dalziel et al. 2011. PecFinShapelandmarks_UnalignedTPS TPS file of 6 pectoral fin landmarks from Fig.3.

Note that these landmarks must be aligned in TpsRelw prior to further analysis Fig3_PecFinshape_R Raw data for pectoral fin shape (aligned landmarks), and DFA analysis. Fig4_BodyShape_R Corrected measures of stickleback body shape (see methods) and results of DFA. BodyShape12Landmarks TPS file for use in TmorphGen.

Can be used to calculate distances between 12 landmarks from Fig. 4. Fig5_SMR_R Raw standard metabolic rate data. Fig5_MMR_R Raw maximum metabolic rate data DominanceModel R script for dominance model Dominance_modelUcritdata_R Raw data for testing for differences in dominance among locations (Bonsall and West Creeks)in R.