John O'Donnell, Schalles M.S. Student

« Please Note: John O'Donnell is no longer active on the GCE-LTER Project so contact information may not be accurate (see the GCE Personnel page for an up-to-date list of participants) »

Contact Information:

Primary Organization: Creighton University

Mailing Address:

John O'Donnell
Department of Biology
Creighton University
Omaha, Nebraska 68178-0103

E-Mail: JohnODonnell@creighton.edu

GCE Data Sets:

PLT-GCET-1801 (Spartina alterniflora aboveground biomass patterns from Landsat 5 TM imagery (1984-2011) and external driver data used in multivariate analysis.)

PLT-GCEM-1511a (Fall 2015 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10)

PLT-GCEM-1412a (Fall 2014 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10)

PLT-GCEM-1403a (Fall 2013 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10)

GCE Publications and Presentations: (custom bibliography)

Journal Articles

Zinnert, J.C., Nippert, J.B., Rudgers, J.A., Pennings, S.C., Gonzalez, G., Alber, M., Baer, S.G., Blair, J.M., Burd, A.B., Collins, S.L., Craft, C.B., Di Iorio, D., Dodds, W.K., Groffman, P.M., Herbert, E., Hladik, C.M., Li, F., Litvak, M., Newsome, S., O'Donnell, J., Pockman, W.T., Schalles, J.F. and Young, D.R. 2021. State Changes: Insights from the U.S. Long Term Ecological Research Network. Ecosphere. (DOI: 10.1002/ecs2.3433)

O'Donnell, J. and Schalles, J.F. 2016. Examination of Abiotic Drivers and Their Influence on Spartina alterniflora Biomass over a Twenty-Eight Year Period Using Landsat 5 TM Satellite Imagery of the Central Georgia Coast. Special Issue: Remote Sensing in Coastal Environments. Remote Sensing. 8(6):22. (DOI: 10.3390/rs8060477)

Conference Posters and Presentations

Schalles, J.F., Hladik, C.M., Nealy, N., Miklesh, D.M., Meile, C., Lynn, T. and O'Donnell, J. Presentation: A 35 year spatial-temporal analysis of serious Spartina alterniflora biomass declines in coastal Georgia. Impact of multiple disturbances on coastal ecosystem structure and function. Coastal and Estuarine Research Federation Biennial Meeting, November 4, 2019, Mobile, Alabama.

Schalles, J.F., Hladik, C.M., O'Donnell, J., Miklesh, D.M., Pudil, T. and Nealy, N. 2021. Presentation: Satellite and drone remote sensing to study decadal scale and high resolution spatial-temporal patterns and declines of Spartina alterniflora above-ground biomass in Georgia, USA salt marshes. Session 2. 1st International Symposium on Coastal Ecosystems and Global Change (CoEco1), April 18, 2021, Xiamen University, Xiamen, China.

Schalles, J.F., Hladik, C.M., O'Donnell, J., Miklesh, D.M., Pudil, T., Nealy, N. and Currin, H. 2021. Presentation: Serious multidecadal declines in aboveground biomass of the keystone salt marsh species, Spartina alterniflora, are related to climate change in coastal Georgia, USA. Wetlandscapes: Understanding the Large-scale Wetland Functions in the Landscape Symposium. 11th INTECOL International Wetlands Conference, October 14, 2021, Christchurch, New Zealand (virtual, prerecorded).

Meile, C., Schalles, J.F., Peterson, R.N., O'Donnell, J., Bice, K., Medeiros, P.M., Di Iorio, D., Hopkinson, C.S., Joye, S.B., Stegen, J., Goldman, A., Thomle, J. and Danczak, R. 2019. Presentation: Flow and short- and long-term carbon dynamics at tidally impacted coastal interfaces in the SE USA. Goldschmidt Conference, August 18-23, 2019, Barcelona.

Miklesh, D.M., O'Donnell, J., Schalles, J.F. and Meile, C. 2018. Poster: Analysis of decadal-scale patterns of Spartina biomass in Georgia marshes using soil modeling and satellite imagery. Ocean Sciences Meeting, Feb 11-16, 2018, Portland OR.

Schalles, J.F., O'Donnell, J., Hladik, C.M., Ponzi, S., Cao, F. and Miller, W. 2018. Poster: The dynamic littoral fringe – Spatial and temporal patterns in community structureand productivity in North American coastal ecosystems. Poster Session - Tuesday. GLOBOLakes and GEO Aquawatch Joint Workshop, Wednesday, August 29, 2018, University of Stirling, Stirling, Scotland, UK.

Schalles, J.F., O'Donnell, J., Nealy, N., Mizoguchi, T. and Hladik, C.M. 2018. Presentation: Multidecadal biomass declines and controlling variables for the keystone salt marsh species, Spartina alterniflora, in coastal Georgia . SS86: Connecting the Dots – Signals of Global Change Effects in Freshwater and Marine Ecosystems. ASLO 2018 Summer Meeting, June 15, 2018, Victoria, British Columbia, BC.

O'Donnell, J. and Schalles, J.F. 2017. Poster: Serious declines in Georgia salt marsh plant biomass are linked to climate variables. Poster Session. Climate Justice: The Struggle for Our Common Home. Loyola University 4th Annual Climate Change Conference, March 17, 2017, Chicago, IL.

O'Donnell, J., Schalles, J.F. and Hladik, C.M. 2017. Presentation: Serious declines in a large area of Georgia Salt marsh plant biomass are linked to climate variables. Collaborating across geographic scales: integrating estuarine and coastal ocean information. Coastal and Estuarine Research Federation Biennial Meeting, November 9, 2017, Providence, Rhode Island.

Schalles, J.F., Hladik, C.M., Yacobi, Y., Olley, J. and O'Donnell, J. 2017. Presentation: Chlorophyll retrieval Algorithms and effects of highly variable TSS and CDOM using a large spectral library of inland and coastal observations. #031 Global Remote Sensing of Inland Waters. Association for the Sciences of Limnology and Oceanography Annual Meeting, February 28, 2017, Honolulu, HI.

O'Donnell, J., Schalles, J.F. and Hladik, C.M. 2016. Poster: Recent declines in Georgia salt marsh plant biomass and health are linked to climate and hydrologic variables. Poster Session. Georgia Department of Natural Resources Coastal Climate Change Conference: Prepare, Respond, and Adapt, November 2, 2016, Jekyll Island, GA.

O'Donnell, J. and Schalles, J.F. 2015. Poster: 28 Years of Landsat5 TM and external forcing data for analysis of Spartina biomass on the Central Georgia coast. Coastal and Estuarine Research Federation Biennial Meeting., November 2015, Portland, OR.

Schalles, J.F., O'Donnell, J. and Olley, J. 2014. Poster: Remote sensing and geospatial analysis of material gradients and fronts within the Inner Shelf of the Central South Atlantic Bight. 42. Optical Remote Sensing of Freshwater, Estuarine, and Coastal Environments: Water Quality and Other Applications. Ocean Sciences Meeting, February, 2014, Honolulu, Hawaii.

Gilson, G.F., Schalles, J.F. and O'Donnell, J. 2013. Poster: Quantifying spatial variability of microbenthic algae using optical reflectance measurements. SCI-068P Estuarine Shallows : Biophysical Interactions. Coastal and Estuarine Research Federation Biennial Meeting, November, 2012, San Diego, CA.

Olley, J., O'Donnell, J. and Schalles, J.F. 2012. Presentation: Boat-borne remote sensing and HPLC analysis of coastal phytoplankton populations along the Atlantic and Gulf Coasts. Biological oceanography - aquatic biology. TOS/ASLO/AGU 2012 Ocean Sciences Meeting, February 20 - 24, 2012, Salt Lake City, Utah.

Schalles, J.F., Olley, J., O'Donnell, J. and Hladik, C.M. 2012. Presentation: Assessing chlorophyll patterns in tidal tributary streams and rivers and in estuary to near shore transition zones. FR4.5.5: Invited Session - Hyperspectral remote sensing in shallow waters. IEEE International Geoscience and Remote Sensing Symposium, July 22 - 27, 2012, Munich, Germany.

Schalles, J.F., Hladik, C.M., Seminara, D. and O'Donnell, J. 2011. Presentation: Mapping Coastal and Estuarine Chlorophyll Concentrations. S05: Ocean Color Radiometry of Coastal and Inland Water. 2011 ASLO Aquatic Sciences Meeting, February 16, 2011, San Juan, Puerto Rico.

Schalles, J.F., Olley, J., Hladik, C.M. and O'Donnell, J. 2011. Presentation: Comparing algal chlorophyll spatial patterns within and between Gulf and East Coast National Estuarine Research Reserves. SCI-106, Comparative Studies of Estuarine and Coastal System Properties. Coastal and Estuarine Research Federation, November 9. 2011, Daytona Beach, Florida.

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Student « Please Note: John O'Donnell is no longer active on the GCE-LTER Project so contact information may not be accurate (see the GCE Personnel page for an up-to-date list of participants) » Contact Information: Primary Organization: Creighton University Mailing Address: John O'Donnell Department of Biology Creighton University Omaha, Nebraska 68178-0103 E-Mail: JohnODonnell@creighton.edu GCE Data Sets: PLT-GCET-1801 (Spartina alterniflora aboveground biomass patterns from Landsat 5 TM imagery (1984-2011) and external driver data used in multivariate analysis.) PLT-GCEM-1511a (Fall 2015 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10) PLT-GCEM-1412a (Fall 2014 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10) PLT-GCEM-1403a (Fall 2013 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10) GCE Publications and Presentations: (custom bibliography) Journal Articles Zinnert, J.C., Nippert, J.B., Rudgers, J.A., Pennings, S.C., Gonzalez, G., Alber, M., Baer, S.G., Blair, J.M., Burd, A.B., Collins, S.L., Craft, C.B., Di Iorio, D., Dodds, W.K., Groffman, P.M., Herbert, E., Hladik, C.M., Li, F., Litvak, M., Newsome, S., O'Donnell, J., Pockman, W.T., Schalles, J.F. and Young, D.R. 2021. State Changes: Insights from the U.S. Long Term Ecological Research Network. Ecosphere. (DOI: 10.1002/ecs2.3433) O'Donnell, J. and Schalles, J.F. 2016. Examination of Abiotic Drivers and Their Influence on Spartina alterniflora Biomass over a Twenty-Eight Year Period Using Landsat 5 TM Satellite Imagery of the Central Georgia Coast. Special Issue: Remote Sensing in Coastal Environments. Remote Sensing. 8(6):22. (DOI: 10.3390/rs8060477) Conference Posters and Presentations Schalles, J.F., Hladik, C.M., Nealy, N., Miklesh, D.M., Meile, C., Lynn, T. and O'Donnell, J. Presentation: A 35 year spatial-temporal analysis of serious Spartina alterniflora biomass declines in coastal Georgia. Impact of multiple disturbances on coastal ecosystem structure and function. Coastal and Estuarine Research Federation Biennial Meeting, November 4, 2019, Mobile, Alabama. Schalles, J.F., Hladik, C.M., O'Donnell, J., Miklesh, D.M., Pudil, T. and Nealy, N. 2021. Presentation: Satellite and drone remote sensing to study decadal scale and high resolution spatial-temporal patterns and declines of Spartina alterniflora above-ground biomass in Georgia, USA salt marshes. Session 2. 1st International Symposium on Coastal Ecosystems and Global Change (CoEco1), April 18, 2021, Xiamen University, Xiamen, China. Schalles, J.F., Hladik, C.M., O'Donnell, J., Miklesh, D.M., Pudil, T., Nealy, N. and Currin, H. 2021. Presentation: Serious multidecadal declines in aboveground biomass of the keystone salt marsh species, Spartina alterniflora, are related to climate change in coastal Georgia, USA. Wetlandscapes: Understanding the Large-scale Wetland Functions in the Landscape Symposium. 11th INTECOL International Wetlands Conference, October 14, 2021, Christchurch, New Zealand (virtual, prerecorded). Meile, C., Schalles, J.F., Peterson, R.N., O'Donnell, J., Bice, K., Medeiros, P.M., Di Iorio, D., Hopkinson, C.S., Joye, S.B., Stegen, J., Goldman, A., Thomle, J. and Danczak, R. 2019. Presentation: Flow and short- and long-term carbon dynamics at tidally impacted coastal interfaces in the SE USA. Goldschmidt Conference, August 18-23, 2019, Barcelona. Miklesh, D.M., O'Donnell, J., Schalles, J.F. and Meile, C. 2018. Poster: Analysis of decadal-scale patterns of Spartina biomass in Georgia marshes using soil modeling and satellite imagery. Ocean Sciences Meeting, Feb 11-16, 2018, Portland OR. Schalles, J.F., O'Donnell, J., Hladik, C.M., Ponzi, S., Cao, F. and Miller, W. 2018. Poster: The dynamic littoral fringe – Spatial and temporal patterns in community structureand productivity in North American coastal ecosystems. Poster Session - Tuesday. GLOBOLakes and GEO Aquawatch Joint Workshop, Wednesday, August 29, 2018, University of Stirling, Stirling, Scotland, UK. Schalles, J.F., O'Donnell, J., Nealy, N., Mizoguchi, T. and Hladik, C.M. 2018. Presentation: Multidecadal biomass declines and controlling variables for the keystone salt marsh species, Spartina alterniflora, in coastal Georgia . SS86: Connecting the Dots – Signals of Global Change Effects in Freshwater and Marine Ecosystems. ASLO 2018 Summer Meeting, June 15, 2018, Victoria, British Columbia, BC. O'Donnell, J. and Schalles, J.F. 2017. Poster: Serious declines in Georgia salt marsh plant biomass are linked to climate variables. Poster Session. Climate Justice: The Struggle for Our Common Home. Loyola University 4th Annual Climate Change Conference, March 17, 2017, Chicago, IL. O'Donnell, J., Schalles, J.F. and Hladik, C.M. 2017. Presentation: Serious declines in a large area of Georgia Salt marsh plant biomass are linked to climate variables. Collaborating across geographic scales: integrating estuarine and coastal ocean information. Coastal and Estuarine Research Federation Biennial Meeting, November 9, 2017, Providence, Rhode Island. Schalles, J.F., Hladik, C.M., Yacobi, Y., Olley, J. and O'Donnell, J. 2017. Presentation: Chlorophyll retrieval Algorithms and effects of highly variable TSS and CDOM using a large spectral library of inland and coastal observations. #031 Global Remote Sensing of Inland Waters. Association for the Sciences of Limnology and Oceanography Annual Meeting, February 28, 2017, Honolulu, HI. O'Donnell, J., Schalles, J.F. and Hladik, C.M. 2016. Poster: Recent declines in Georgia salt marsh plant biomass and health are linked to climate and hydrologic variables. Poster Session. Georgia Department of Natural Resources Coastal Climate Change Conference: Prepare, Respond, and Adapt, November 2, 2016, Jekyll Island, GA. O'Donnell, J. and Schalles, J.F. 2015. Poster: 28 Years of Landsat5 TM and external forcing data for analysis of Spartina biomass on the Central Georgia coast. Coastal and Estuarine Research Federation Biennial Meeting., November 2015, Portland, OR. Schalles, J.F., O'Donnell, J. and Olley, J. 2014. Poster: Remote sensing and geospatial analysis of material gradients and fronts within the Inner Shelf of the Central South Atlantic Bight. 42. Optical Remote Sensing of Freshwater, Estuarine, and Coastal Environments: Water Quality and Other Applications. Ocean Sciences Meeting, February, 2014, Honolulu, Hawaii. Gilson, G.F., Schalles, J.F. and O'Donnell, J. 2013. Poster: Quantifying spatial variability of microbenthic algae using optical reflectance measurements. SCI-068P Estuarine Shallows : Biophysical Interactions. Coastal and Estuarine Research Federation Biennial Meeting, November, 2012, San Diego, CA. Olley, J., O'Donnell, J. and Schalles, J.F. 2012. Presentation: Boat-borne remote sensing and HPLC analysis of coastal phytoplankton populations along the Atlantic and Gulf Coasts. Biological oceanography - aquatic biology. TOS/ASLO/AGU 2012 Ocean Sciences Meeting, February 20 - 24, 2012, Salt Lake City, Utah. Schalles, J.F., Olley, J., O'Donnell, J. and Hladik, C.M. 2012. Presentation: Assessing chlorophyll patterns in tidal tributary streams and rivers and in estuary to near shore transition zones. FR4.5.5: Invited Session - Hyperspectral remote sensing in shallow waters. IEEE International Geoscience and Remote Sensing Symposium, July 22 - 27, 2012, Munich, Germany. Schalles, J.F., Hladik, C.M., Seminara, D. and O'Donnell, J. 2011. Presentation: Mapping Coastal and Estuarine Chlorophyll Concentrations. S05: Ocean Color Radiometry of Coastal and Inland Water. 2011 ASLO Aquatic Sciences Meeting, February 16, 2011, San Juan, Puerto Rico. Schalles, J.F., Olley, J., Hladik, C.M. and O'Donnell, J. 2011. Presentation: Comparing algal chlorophyll spatial patterns within and between Gulf and East Coast National Estuarine Research Reserves. SCI-106, Comparative Studies of Estuarine and Coastal System Properties. Coastal and Estuarine Research Federation, November 9. 2011, Daytona Beach, Florida.
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