32 research outputs found
The drift of early life stages of Percidae and Gobiidae (Pisces: Teleostei) in a free-flowing section of the Austrian Danube
Data from: Genetic and maternal effects on tail spine and body length in the invasive spiny water flea (Bythotrephes longimanus)
Interest in the evolution of invasive species has grown in recent years, yet few studies have investigated sources of variation in invasive species traits experiencing natural selection. The spiny water flea, Bythotrephes longimanus, is an invasive zooplankton in the Great Lakes that exhibits seasonal changes in tail spine and body length consistent with natural selection. Evolution of Bythotrephes traits, however, depends on the presence and magnitude of quantitative genetic variation, which could change within or across years. Clonal analysis of wild-captured Bythotrephes indicated that variance components for distal spine length were variable among but not within years. Spine length was always heritable but was not always influenced by maternal effects. In contrast, variance components for body length varied both within and among years, but likewise body length was always heritable and not always influenced by maternal effects. Results indicate that important Bythotrephes traits have heritable variation comparable to native species and other invasive species that would enable an evolutionary response to natural selection. This evolutionary capacity could contribute to the widespread success and dramatic effects of Bythotrephes invasion in systems with diverse biotic and abiotic conditions
Miehls et al. Evol Appl Data
The Miehls et al. Evol Appl Data.csv file contains the data used to quantify genetic, maternal, and environmental variation in distal spine and body length of Bythotrephes longimanus (the spiny water flea) in Lake Michigan (USA). Each row in the spreadsheet includes field and laboratory information (including clonal line relationships and trait measurements) for a single F2 Bythotrephes born in our laboratory clonal lines. All analyses were completed using data from F2 individuals
Morphological Measurements of Bythotrephes in Canadian Shield Lakes
Morphological Measurements of Bythotrephes in Canadian Shield Lake
Appendix A. Detailed fish kairomone collection methodology.
Detailed fish kairomone collection methodology
Appendix D. Statistical results for predator kairomone and temperature effects on Bythotrephes morphology and life history.
Statistical results for predator kairomone and temperature effects on Bythotrephes morphology and life history
Appendix B. Description of the Daphnia behavioral bioassay used to assess the effectiveness of our methodology to produce fish kairomones.
Description of the Daphnia behavioral bioassay used to assess the effectiveness of our methodology to produce fish kairomones
Appendix E. Figures illustrating predator kairomone and temperature effects on Bythotrephes S2 and S3 spine length.
Figures illustrating predator kairomone and temperature effects on Bythotrephes S2 and S3 spine length