Kathi Jo Jankowski, PhD
Kathi Jo Jankowski is the Principal Investigator for the Water Quality Component of the Upper Mississippi River Restoration Program's Long-term Resource Monitoring Element.
She coordinates water quality monitoring and research on the Upper Mississippi in coordination with several federal and state agencies. Her research aims to provide understanding on how aquatic ecosystems are responding to ongoing environmental change. Her work focuses on understanding nutrients, biogeochemical processes, and productivity in the Upper Mississippi and other river ecosystems globally.
Science and Products
Land cover, discharge, terrestrial litterfall, organic matter, and nutrient concentrations of headwater streams in Mato Grosso, Brazil
These data were collected as part of a study headwater streams of the lowland Brazilian Amazon to assess the effects of land use change on organic matter dynamics (OM), ecosystem metabolism, and nutrient concentrations and uptake (nitrate and phosphate) in 11 first order streams draining forested (n=4) or cropland (n=7) water-sheds with intact riparian forests. Data included here are...
Filter Total Items: 23
Bridging the gap between mathematical biology and undergraduate education using applicable natural resource modeling
Mathematical biology is a wide field of study with many venues that undergraduate students can access through research. However, the topics of study for these students can be overwhelming, and many topics of study yield either only trivial results or abstract outcomes that are nonintuitive and diffcult to understand. We have used natural resource modeling, and more specifically, a...
Authors
Richard A. Erickson, Douglas D Baumann, Barbara Bennie, Wako Bungula, Aaron R. Cupp, James Diffendorfer, Eric E. Eager, Roger J. Haro, Kathi Jo Jankowski, Danelle M. Larson, Gregory Sandland, Molly Van Appledorn, James P Peirce
Long-term changes in concentrations and yield of riverine dissolved silicon from the poles to the tropics
Riverine exports of silicon (Si) influence global carbon cycling through the growth of marine diatoms, which account for ∼25% of global primary production. Climate change will likely alter river Si exports in biome-specific ways due to interacting shifts in chemical weathering rates, hydrologic connectivity, and metabolic processes in aquatic and terrestrial systems. Nonetheless, factors...
Authors
Kathi Jo Jankowski, Keira Johnson, Lienne R. Sethna, Paul Julian, Adam S. Wymore, Arial J. Shogren, Patrick Thomas, Pamela L. Sullivan, Diane M. McKnight, William H. McDowell, Ruth C. Heindel, Jeremy B. Jones, Wilfred M. Wollheim, Benjamin Abbott, Linda A. Deegan, Joanna C. Carey
Intraspecific trait variability facilitates tree species persistence along riparian forest edges in Southern Amazonia
Tropical forest fragmentation from agricultural expansion alters the microclimatic conditions of the remaining forests, with effects on vegetation structure and function. However, little is known about how the functional trait variability within and among tree species in fragmented landscapes influence and facilitate species’ persistence in these new environmental conditions. Here, we...
Authors
Leonardo Maracahipes-Santos, Divino Vicente Silverio, Leandro Maracahipes, Marcia Nunes Macedo, Eddie Lenza, Kathi Jo Jankowski, Michelle Wong, Antônio Carlos Silveiro da Silva, Christopher Neill, Giselda Durigan, Paulo Monteiro Brando
River geomorphology affects biogeochemical responses to hydrologic events in a large river ecosystem
Shifts in the frequency and intensity of high discharge events due to climate change may have important consequences for the hydrology and biogeochemistry of rivers. However, our understanding of event-scale biogeochemical dynamics in large rivers lags that of small streams. To fill this gap, we used high-frequency sensor data collected during four consecutive summers from a main channel...
Authors
Taryn Waite, Kathi Jo Jankowski, Denise A Bruesewitz, Molly Van Appledorn, Megan Johnston, Jeffrey N. Houser, Douglas D Baumann, Barbara Bennie
The ecology of river ice
Many of the world's rivers are ice-covered during winter months but increasing evidence indicates that the extent of river ice will shift substantially as winters warm. However, our knowledge of rivers during winter lags far behind that of the growing season, limiting our understanding of how ice loss will affect rivers. Physical, chemical, and biological processes change from headwaters...
Authors
Audrey Thellman, Kathi Jo Jankowski, Brian Hayden, Xiao Yang, Wayana Dolan, Adrianne P Smits, Antoin M O'Sullivan
Warmer winters increase the biomass of phytoplankton in a large floodplain river
Winters are changing rapidly across the globe but the implications for aquatic productivity and food webs are not well understood. In addition, the degree to which winter dynamics in aquatic systems respond to large-scale climate versus ecosystem-level factors is unclear but important for understanding and managing potential changes. We used a unique winter data set from the Upper...
Authors
Kathi Jo Jankowski, Jeffrey N. Houser, Mark D. Schuerell, Adrianne P Smits
Science and Products
Land cover, discharge, terrestrial litterfall, organic matter, and nutrient concentrations of headwater streams in Mato Grosso, Brazil
These data were collected as part of a study headwater streams of the lowland Brazilian Amazon to assess the effects of land use change on organic matter dynamics (OM), ecosystem metabolism, and nutrient concentrations and uptake (nitrate and phosphate) in 11 first order streams draining forested (n=4) or cropland (n=7) water-sheds with intact riparian forests. Data included here are...
Filter Total Items: 23
Bridging the gap between mathematical biology and undergraduate education using applicable natural resource modeling
Mathematical biology is a wide field of study with many venues that undergraduate students can access through research. However, the topics of study for these students can be overwhelming, and many topics of study yield either only trivial results or abstract outcomes that are nonintuitive and diffcult to understand. We have used natural resource modeling, and more specifically, a...
Authors
Richard A. Erickson, Douglas D Baumann, Barbara Bennie, Wako Bungula, Aaron R. Cupp, James Diffendorfer, Eric E. Eager, Roger J. Haro, Kathi Jo Jankowski, Danelle M. Larson, Gregory Sandland, Molly Van Appledorn, James P Peirce
Long-term changes in concentrations and yield of riverine dissolved silicon from the poles to the tropics
Riverine exports of silicon (Si) influence global carbon cycling through the growth of marine diatoms, which account for ∼25% of global primary production. Climate change will likely alter river Si exports in biome-specific ways due to interacting shifts in chemical weathering rates, hydrologic connectivity, and metabolic processes in aquatic and terrestrial systems. Nonetheless, factors...
Authors
Kathi Jo Jankowski, Keira Johnson, Lienne R. Sethna, Paul Julian, Adam S. Wymore, Arial J. Shogren, Patrick Thomas, Pamela L. Sullivan, Diane M. McKnight, William H. McDowell, Ruth C. Heindel, Jeremy B. Jones, Wilfred M. Wollheim, Benjamin Abbott, Linda A. Deegan, Joanna C. Carey
Intraspecific trait variability facilitates tree species persistence along riparian forest edges in Southern Amazonia
Tropical forest fragmentation from agricultural expansion alters the microclimatic conditions of the remaining forests, with effects on vegetation structure and function. However, little is known about how the functional trait variability within and among tree species in fragmented landscapes influence and facilitate species’ persistence in these new environmental conditions. Here, we...
Authors
Leonardo Maracahipes-Santos, Divino Vicente Silverio, Leandro Maracahipes, Marcia Nunes Macedo, Eddie Lenza, Kathi Jo Jankowski, Michelle Wong, Antônio Carlos Silveiro da Silva, Christopher Neill, Giselda Durigan, Paulo Monteiro Brando
River geomorphology affects biogeochemical responses to hydrologic events in a large river ecosystem
Shifts in the frequency and intensity of high discharge events due to climate change may have important consequences for the hydrology and biogeochemistry of rivers. However, our understanding of event-scale biogeochemical dynamics in large rivers lags that of small streams. To fill this gap, we used high-frequency sensor data collected during four consecutive summers from a main channel...
Authors
Taryn Waite, Kathi Jo Jankowski, Denise A Bruesewitz, Molly Van Appledorn, Megan Johnston, Jeffrey N. Houser, Douglas D Baumann, Barbara Bennie
The ecology of river ice
Many of the world's rivers are ice-covered during winter months but increasing evidence indicates that the extent of river ice will shift substantially as winters warm. However, our knowledge of rivers during winter lags far behind that of the growing season, limiting our understanding of how ice loss will affect rivers. Physical, chemical, and biological processes change from headwaters...
Authors
Audrey Thellman, Kathi Jo Jankowski, Brian Hayden, Xiao Yang, Wayana Dolan, Adrianne P Smits, Antoin M O'Sullivan
Warmer winters increase the biomass of phytoplankton in a large floodplain river
Winters are changing rapidly across the globe but the implications for aquatic productivity and food webs are not well understood. In addition, the degree to which winter dynamics in aquatic systems respond to large-scale climate versus ecosystem-level factors is unclear but important for understanding and managing potential changes. We used a unique winter data set from the Upper...
Authors
Kathi Jo Jankowski, Jeffrey N. Houser, Mark D. Schuerell, Adrianne P Smits