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 understand how land use and climate change impact ecosystem
Science and Products
Continuous water quality sensor data from the main channel and a backwater of the Upper Mississippi River from 2015-2018
This dataset includes high-frequency sensor data collected during four consecutive summers from buoys deployed at main channel and backwater sites in Pool 8 of the Upper Mississippi River from 2015-2018. It also includes the event-specific concentration-discharge metrics (hysteresis and slope) calculated by combining the water quality sensor data with discharge data from a nearby USGS gage in Wino
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 from 10 strea
Filter Total Items: 14
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 assessed pot
Authors
Leonardo Maracahipes-Santos, Divino Vicente Silvério, Leandro Maracahipes, Marcia N. Macedo, Eddie Lenza, Kathi Jo Jankowski, Michelle Wong, Antônio Carlos Silveiro da Silva, Christopher Neill, Giselda Durigan, Paulo 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 and backw
Authors
Taryn Waite, Kathi Jo Jankowski, Denise Bruesewitz, Molly Van Appledorn, Megan Johnston, Jeffrey N. Houser, Douglas 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 to large
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 Mississippi Rive
Authors
Kathi Jo Jankowski, Jeffrey N. Houser, Mark D. Schuerell, Adrianne P Smits
Land use change influences ecosystem function in headwater streams of the Lowland Amazon Basin
Intensive agriculture alters headwater streams, but our understanding of its effects is limited in tropical regions where rates of agricultural expansion and intensification are currently greatest. Riparian forest protections are an important conservation tool, but whether they provide adequate protection of stream function in these areas of rapid tropical agricultural development has not been wel
Authors
Kathi Jo Jankowski, Linda A. Deegan, Christopher Neill, HIllary L. Sullivan, Paulo Ilha, Leonardo Maracahipes-Santos, Nubia C.S. Marques, Marcia N. Macedo
Riparian forests buffer the negative effects of cropland on macroinvertebrate diversity in lowland Amazonian streams
Riparian forests regulate stream ecosystems and biodiversity. Therefore, changes to riparian structure may threaten stream ecosystem function by triggering taxonomic and functional changes to aquatic communities. Because macroinvertebrate assemblages are sensitive to environmental changes, they can be effective indicators of stream integrity in disturbed landscapes. To assess the role of riparian
Authors
Nubia C.S. Marques, Kathi Jo Jankowski, Marcia N. Macedo, Leandro Juen, Ana Luiza-Andrade, Linda A. Deegan
Aquatic ecosystem metabolism as a tool in environmental management
Recent advances in high-frequency environmental sensing and statistical approaches have greatly expanded the breadth of knowledge regarding aquatic ecosystem metabolism - the measurement and interpretation of gross primary productivity (GPP) and ecosystem respiration (ER). Aquatic scientists are poised to take advantage of widely available datasets and freely-available modeling tools to apply func
Authors
Kathi Jo Jankowski, Francine H. Mejia, Joanna Blaszczak, Gordon W. Holtgrieve
Using Markov chains to quantitatively assess movement patterns of invasive fishes impacted by a carbon dioxide barrier in outdoor ponds
Natural resource managers use barriers to deter the movement of aquatic invasive species. Research and development of new invasive species barriers is often evaluated in pond and field scales using high‐resolution telemetry data. Telemetry data sets can be a rich source of data about fish movement and behavior but can be difficult to analyze due to the size of these data sets as well as their irre
Authors
Lauren K Borland, Collin J Mulcahy, Barb Bennie, Douglas D Baumann, Roger J. Haro, Molly Van Appledorn, Kathi Jo Jankowski, Aaron R. Cupp, Richard A. Erickson
Integrating perspectives to understand lake ice dynamics in a changing world
Ice cover plays a critical role in physical, biogeochemical, and ecological processes in lakes. Despite its importance, winter limnology remains relatively understudied. Here, we provide a primer on the predominant drivers of freshwater lake ice cover and the current methodologies used to study lake ice, including in situ and remote sensing observations, physical based models, and experiments. We
Authors
Sapna Sharma, Michael F. Meyer, Joshua Culpepper, Xiao Yang, Stephanie Hampton, Stella A. Berger, Matthew R. Brousil, Steven C. Fradkin, Scott N. Higgins, Kathi Jo Jankowski, Georgiy Kirillin, Adrianne P Smits, Emily C. Whitaker, Foad Yousef, Shuai Zhang
Mapping the thermal landscape of the Upper Mississippi River
Temperature has a fundamental influence on physical, chemical and biological processing in aquatic ecosystems. River temperatures respond to a diverse array of drivers including air temperature, streamflow, and thermal inputs, but the physical template has been shown to play a significant role in structuring spatial and temporal variation in water temperature. How these factors interact to affect
Authors
Kathi Jo Jankowski, Larry R. Robinson, John Kalas, Alicia Carhart, Brian R. Lubinski, Janis Ruhser
Watershed geomorphology modifies the sensitivity of aquatic ecosystem metabolism to temperature
How carbon cycles are regulated by environmental temperature remains a substantial uncertainty in our understanding of how watersheds will respond to ongoing climate change. Aquatic ecosystems are important components of carbon flux to the atmosphere and ocean, yet we have limited understanding of how temperature modifies ecosystem metabolic processes and, therefore, aquatic contributions to carbo
Authors
Kathi Jo Jankowski, Daniel E. Schindler
Exploring silica stoichiometry on a large floodplain riverscape
Freshwater ecosystems are critical zones of nutrient and carbon (C) processing along the land-sea continuum. Relative to our understanding of C, nitrogen (N), and phosphorus (P) cycling within the freshwater systems, the controls on silicon (Si) cycling and export are less understood. Understanding Si biogeochemistry and its coupled biogeochemical processing with N and P has direct implications fo
Authors
Joanna C. Carey, Kathi Jo Jankowski, Paul Julian, Lienne Sethna, Patrick Thomas, Jason J. Rohweder
Science and Products
- Data
Continuous water quality sensor data from the main channel and a backwater of the Upper Mississippi River from 2015-2018
This dataset includes high-frequency sensor data collected during four consecutive summers from buoys deployed at main channel and backwater sites in Pool 8 of the Upper Mississippi River from 2015-2018. It also includes the event-specific concentration-discharge metrics (hysteresis and slope) calculated by combining the water quality sensor data with discharge data from a nearby USGS gage in WinoLand 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 from 10 strea - Publications
Filter Total Items: 14
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 assessed potAuthorsLeonardo Maracahipes-Santos, Divino Vicente Silvério, Leandro Maracahipes, Marcia N. Macedo, Eddie Lenza, Kathi Jo Jankowski, Michelle Wong, Antônio Carlos Silveiro da Silva, Christopher Neill, Giselda Durigan, Paulo BrandoRiver 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 and backwAuthorsTaryn Waite, Kathi Jo Jankowski, Denise Bruesewitz, Molly Van Appledorn, Megan Johnston, Jeffrey N. Houser, Douglas Baumann, Barbara BennieThe 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 to largeAuthorsAudrey Thellman, Kathi Jo Jankowski, Brian Hayden, Xiao Yang, Wayana Dolan, Adrianne P Smits, Antoin M O'SullivanWarmer 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 Mississippi RiveAuthorsKathi Jo Jankowski, Jeffrey N. Houser, Mark D. Schuerell, Adrianne P SmitsLand use change influences ecosystem function in headwater streams of the Lowland Amazon Basin
Intensive agriculture alters headwater streams, but our understanding of its effects is limited in tropical regions where rates of agricultural expansion and intensification are currently greatest. Riparian forest protections are an important conservation tool, but whether they provide adequate protection of stream function in these areas of rapid tropical agricultural development has not been welAuthorsKathi Jo Jankowski, Linda A. Deegan, Christopher Neill, HIllary L. Sullivan, Paulo Ilha, Leonardo Maracahipes-Santos, Nubia C.S. Marques, Marcia N. MacedoRiparian forests buffer the negative effects of cropland on macroinvertebrate diversity in lowland Amazonian streams
Riparian forests regulate stream ecosystems and biodiversity. Therefore, changes to riparian structure may threaten stream ecosystem function by triggering taxonomic and functional changes to aquatic communities. Because macroinvertebrate assemblages are sensitive to environmental changes, they can be effective indicators of stream integrity in disturbed landscapes. To assess the role of riparianAuthorsNubia C.S. Marques, Kathi Jo Jankowski, Marcia N. Macedo, Leandro Juen, Ana Luiza-Andrade, Linda A. DeeganAquatic ecosystem metabolism as a tool in environmental management
Recent advances in high-frequency environmental sensing and statistical approaches have greatly expanded the breadth of knowledge regarding aquatic ecosystem metabolism - the measurement and interpretation of gross primary productivity (GPP) and ecosystem respiration (ER). Aquatic scientists are poised to take advantage of widely available datasets and freely-available modeling tools to apply funcAuthorsKathi Jo Jankowski, Francine H. Mejia, Joanna Blaszczak, Gordon W. HoltgrieveUsing Markov chains to quantitatively assess movement patterns of invasive fishes impacted by a carbon dioxide barrier in outdoor ponds
Natural resource managers use barriers to deter the movement of aquatic invasive species. Research and development of new invasive species barriers is often evaluated in pond and field scales using high‐resolution telemetry data. Telemetry data sets can be a rich source of data about fish movement and behavior but can be difficult to analyze due to the size of these data sets as well as their irreAuthorsLauren K Borland, Collin J Mulcahy, Barb Bennie, Douglas D Baumann, Roger J. Haro, Molly Van Appledorn, Kathi Jo Jankowski, Aaron R. Cupp, Richard A. EricksonIntegrating perspectives to understand lake ice dynamics in a changing world
Ice cover plays a critical role in physical, biogeochemical, and ecological processes in lakes. Despite its importance, winter limnology remains relatively understudied. Here, we provide a primer on the predominant drivers of freshwater lake ice cover and the current methodologies used to study lake ice, including in situ and remote sensing observations, physical based models, and experiments. WeAuthorsSapna Sharma, Michael F. Meyer, Joshua Culpepper, Xiao Yang, Stephanie Hampton, Stella A. Berger, Matthew R. Brousil, Steven C. Fradkin, Scott N. Higgins, Kathi Jo Jankowski, Georgiy Kirillin, Adrianne P Smits, Emily C. Whitaker, Foad Yousef, Shuai ZhangMapping the thermal landscape of the Upper Mississippi River
Temperature has a fundamental influence on physical, chemical and biological processing in aquatic ecosystems. River temperatures respond to a diverse array of drivers including air temperature, streamflow, and thermal inputs, but the physical template has been shown to play a significant role in structuring spatial and temporal variation in water temperature. How these factors interact to affectAuthorsKathi Jo Jankowski, Larry R. Robinson, John Kalas, Alicia Carhart, Brian R. Lubinski, Janis RuhserWatershed geomorphology modifies the sensitivity of aquatic ecosystem metabolism to temperature
How carbon cycles are regulated by environmental temperature remains a substantial uncertainty in our understanding of how watersheds will respond to ongoing climate change. Aquatic ecosystems are important components of carbon flux to the atmosphere and ocean, yet we have limited understanding of how temperature modifies ecosystem metabolic processes and, therefore, aquatic contributions to carboAuthorsKathi Jo Jankowski, Daniel E. SchindlerExploring silica stoichiometry on a large floodplain riverscape
Freshwater ecosystems are critical zones of nutrient and carbon (C) processing along the land-sea continuum. Relative to our understanding of C, nitrogen (N), and phosphorus (P) cycling within the freshwater systems, the controls on silicon (Si) cycling and export are less understood. Understanding Si biogeochemistry and its coupled biogeochemical processing with N and P has direct implications foAuthorsJoanna C. Carey, Kathi Jo Jankowski, Paul Julian, Lienne Sethna, Patrick Thomas, Jason J. Rohweder