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appendix-e-gutsch-2017-ruffe-dissertation-accessible

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T

appendix-e-gutsch-2017-ruffe-dissertation-accessibleTO THE FACULTY OFUNIVERSITY OF MINNESOTABYMichelle Kathleen GutschIN PARTIAL FULFILLMENT OF THE REQUIREMENTSOF THE DEGREE OFDOCTOR OF PHILOSOPHYDr. Jo

el c. Hoffman. Advisor43070©Michelle Gutsch 2017AcknowledgementsThank you to all of the people that compiled and shared data with me— Henry Quinlan an appendix-e-gutsch-2017-ruffe-dissertation-accessible

d Jared Myers (US Fish and Wildlife Service), Andrew Edwards (1854 Treaty Authority), Deserae Hendrickson (MN Department of Natural Resources), Bradle

appendix-e-gutsch-2017-ruffe-dissertation-accessible

y Ray (Wl Department of Natural Resources), Mark Vinson and Lori Evrard (US Geological Survey), and Derek Ogle, Randy Lehr, and Matt Hudson (Northland

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T

appendix-e-gutsch-2017-ruffe-dissertation-accessiblee Cotter for stable isotope processing. Thank you to Cindy Hagley and local and regional educators associated with MN Sea Grant programming for help c

ollecting and processing samples. Thank you to Will Bartsch and Matt Etterson for R and stats help and support. Thank you to Nate Nibbelink and Matt E appendix-e-gutsch-2017-ruffe-dissertation-accessible

tterson for Maxent help and support. A special thank you to Jonathan Launspach for amazing GIS work on multiple chapters of the dissertation. Thank yo

appendix-e-gutsch-2017-ruffe-dissertation-accessible

u to Lyle Shannon and Paul Bates for teaching support and mentoring. Thank you to the Integrated Biosciences and Biology Departments for financial and

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T

appendix-e-gutsch-2017-ruffe-dissertation-accessibleo like to thank my office mates for scientific and emotional support— Jill Scharold, Chelsea Hatzenbuhler, Julie Lietz. and Christy Meredith, special

thank you to my friends and family for incredible support—husband (Charles Gornik), Baby Maggie, Mom (Holly Gutsch). Dad (Mike Gutsch), Sister (Bonnie appendix-e-gutsch-2017-ruffe-dissertation-accessible

Gutsch), Emily Heald, Chelsea Hatzenbuhler, and Dogs (Rascal and Zoey).DedicationI dedicate this dissertation to my husband and Baby Maggie. Thank yo

appendix-e-gutsch-2017-ruffe-dissertation-accessible

u for your love and support throughout this endeavor.iiAbstractInvasive species are a global problem, impacting property, habitats, ecosystem function

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T

appendix-e-gutsch-2017-ruffe-dissertation-accessible integrate information regarding life history, movement, and habitat, especially across continents. Invasive Ruffe (Gymnocephalus cernua) has caused s

ubstantial ecological damage in North America, parts of Western Europe. Scandinavian countries, and the United Kingdom. Given the potential for ecolog appendix-e-gutsch-2017-ruffe-dissertation-accessible

ical impacts, such as native fish declines, ongoing concern regarding the spread of Ruffe is warranted. But there are significant research gaps regard

appendix-e-gutsch-2017-ruffe-dissertation-accessible

ing life history, movement, and Ruffe distribution in the native and non-native range. Therefore, the overall goals of my dissertation were to acquire

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T

appendix-e-gutsch-2017-ruffe-dissertation-accessiblecale species distribution model for Ruffe at a 30-m resolution. First. I found that Ruffe exhibits plasticity with regard to chemical, physical, biolo

gical, and habitat requirements (Chapter One). Adult Ruffe has characteristics that allow it to adapt to a range of environments, including rapid matu appendix-e-gutsch-2017-ruffe-dissertation-accessible

ration, relatively long life and large size, batch spawning, genotypic and phenotypic plasticity, tolerance to a wide range of environmental condition

appendix-e-gutsch-2017-ruffe-dissertation-accessible

s, broad diet, and multiple dispersal periods. Notably, there is variability among these characteristics between the native, non-native North American

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T

appendix-e-gutsch-2017-ruffe-dissertation-accessiblen stages (Chapter Two). In the st. Louis River, the populationiii

Appendix EGutsch (2017) Ruffe study DissertationThe rise and fall of the Ruffe (Gymnocephalus cernua) empire in Lake SuperiorA DISSERTATIONSUBMITTED T