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Biographies and Selected Publications

Dr. James Cahill

James Cahill (Project Lead)

Professor of Ecology
University of Alberta
Office: B717a Bio Science - Botany Wing
11355 - Saskatchewan Drive
Edmonton AB, T6G 2E9
Canada

James (JC) Cahill is a professor of ecology in the Department of Biological Sciences at the University of Alberta. He arrived at the U of A in 1999, soon after receiving his Ph.D. in 1997 from the University of Pennsylvania. Over the past 24 years, the Cahill lab has played a significant role in the mentorship and development of more than 150 individuals across various stages of their careers, with alumni finding success in diverse fields such as industry, government, and academia. JC and his lab group are experimental plant ecologists, studying both grassland community ecology and function as well as the seemingly disparate field of plant behavioural ecology. The Cahill lab takes an experimental approach to better understand how plants interact with each other, their local environment, and other taxa (e.g. soil microbes, herbivores, etc.). This work crosses disciplinary boundaries which include behavioural sciences, microbiology, botany & zoology and grassland ecology. Cahill has led multiple projects, including research as the principal investigator on two NSERC Strategic grants focused on understanding the impacts of factors such as drought, warming, and defoliation in grasslands, as well as the effects of the mountain pine beetle on soil microbiome functionality in Alberta forests. Additionally, he has contributed to a collaborative project investigating the consequences of smooth brome invasion on native plant biodiversity in Alberta grasslands. Cahill is currently co-leader of CAT-G, Climate Action Through Grazing, a 6.3M project funded by Genome Canada, RDAR, and AAFC focused on understanding how to support Canada’s Net Zero by 2050 ambition through an integrated understanding of rangeland ecosystems in Canada.

  1. A Batbaatar, CN Carlyle, EW Bork, SX Chang, JF Cahill Jr. 2023. Differential sensitivity of above-and belowground plant biomass to drought and defoliation in temperate grasslands. Agriculture, Ecosystems & Environment 356, 108660.

  2. Z Ma, EW Bork, B Attaeian, JF Cahill Jr, SX Chang. 2022. Altered precipitation rather than warming and defoliation regulate short-term soil carbon and nitrogen fluxes in a northern temperate grassland. Agricultural and Forest Meteorology 327, 109217.

  3. JSJ Grenke, EW Bork, CN Carlyle, MS Boyce, JF Cahill. 2022. Limited impacts of adaptive multi‐paddock grazing systems on plant diversity in the Northern Great Plains. Journal of Applied Ecology 59(7), 1734-1744.

  4. C Liu, T Groff, E Anderson, C Brown, JF Cahill Jr, L Paulow, JA Bennett. 2023. Effects of the invasive leafy spurge (Euphorbia esula L.) on plant community structure are altered by management history. NeoBiota 81, 157-182.

  5. MA Dettlaff, N Erbilgin, JF Cahill Jr. 2021. An invasive grass and litter impact tree encroachment into a native grassland. Applied Vegetation Science 24 (4), e12618.

  6. Zi Ma, SX. Chang, EW. Bork, DF Steinaker, SD Wilson, SR White, JF. Cahill, Jr, M Weiser. 2020. Climate change and defoliation interact to affect root length across northern temperate grasslands Functional Ecology 34(12), 2611-2621.

Dr. Carolyn Fitzsimmons

Carolyn Fitzsimmons (Project Lead)

Associate Professor
University of Alberta
5-20 Agriculture and Forestry Blg.
University of Alberta
Edmonton AB, T6G 2P5.
Canada
Tel: (780) 719- 4852

Dr. Fitzsimmons received her Ph.D. in 2006 at Uppsala University, Sweden. She is a Research Scientist at Agriculture and Agri-Food Canada, Lacombe, Alberta, and an Associate Professor in the Faculty of Agricultural, Life and Environmental Sci (ALES), Department of Agricultural, Food and Nutritional Science (AFNS) at the University of Alberta. Dr. Fitzsimmons is particularly interested in exploring the potential for permanent changes in gene expression resulting from nutritional and other environmental factors (epigenetics). Her current work involves enhancing livestock production through genetic methodologies, with specific emphasis on traits such as RFI (Residual Feed Intake) and enteric methane, and processes such as epigenetics, and fetal programming.

  1. Shirzadifar A, Miar Y, Plastow G, Basarab J, Li C, Fitzsimmons C, Riazi M, & Manafiazar G. (2023) A machine learning approach to predict the most and the least feed–efficient groups in beef cattle. Smart Agricultural Technology 5: 100317.

  2. Behrouzi A, Colazo C, Li C, & Fitzsimmons C. (2022) First-service pregnancy rate among beef heifers with different residual feed intake. Canadian Journal of Animal Science 0(0): 1-4.

  3. Foroutan A, Wishart DS, & Fitzsimmons C. (2021) Exploring Biological Impacts of Prenatal Nutrition and Selection for Residual Feed Intake on Beef Cattle Using Omics Technologies: A Review. Frontiers in Genetics, 12. DOI: 10.3389/fgene.2021.720268

  4. Meale SJ, Ruiz-Sanchez AL, Dervishi E, Roy BC, Paradis F, Juárez M, Aalhus J, López-Campos Ó, Das C, Li C, Block H, Colazo MG, Straathof C, Bruce HL, & Fitzsimmons C. (2021) Impact of genetic potential for residual feed intake and diet fed during early- to mid-gestation in beef heifers on carcass characteristics and meat quality attributes of their castrated male offspring. Meat Science, 182, 22. DOI: 10.1016/j.meatsci.2021.108637

  5. Manafiazar G, Fitzsimmons C, Zhou M, Basarab JA, Baron VS, McKeown L, & Guan LL. (2021) Association between fecal methanogen species with methane production and grazed forage intake of beef heifers classified for residual feed intake under drylot conditions. Animal, 15, 100304. DOI: 10.1016/j.animal.2021.100304

  6. Devos J, Behrouzi A, Paradis F, Straathof C, Li C, Colazo M, Block H, & Fitzsimmons C. (2021) Genetic potential for residual feed intake and diet fed during early- to mid-gestation influences post-natal DNA methylation of imprinted genes in muscle and liver tissues in beef cattle. Journal of Animal Science, 99. DOI: 10.1093/jas/skab140

  7. Foroutan A, Devos J, Wishart DS, Li C, Colazo M, Kastelic J, Thundathil J, & Fitzsimmons C. (2021) Impact of prenatal maternal nutrition and parental residual feed intake (RFI) on mRNA abundance of metabolic drivers of growth and development in young Angus bulls. Livestock Science, 243, 104365. DOI: 10.1016/j.livsci.2020.104365

Dr. Majid Iravani

Majid Iravani (Project Manager)

Research and Development Manager
University of Alberta North Campus
Office: B-704B BioScience - Botany Wing
11355 - Saskatchewan Drive
Edmonton AB, T6G 2E9
Canada

Dr. Majid Iravani is an applied research scientist specializing in developing sustainable solutions and technologies to ensure the responsible use of biodiversity and other natural resources, as well as the provision of goods and services by ecological and land-use systems. Dr. Iravani connects scientific research with the diverse needs of clients to address complex environmental challenges and inform decision-making processes. For over 15 years, he has focused on assessing biodiversity and ecological services within agricultural and livestock production landscapes, working to enhance their sustainability and resilience. His efforts contribute directly to advancing more sustainable practices and policies in these critical areas. With over a decade of experience in research-to-action and environmental sustainability initiatives across Canadian and international nature-dependent sectors, Dr. Iravani excels in leading and managing large-scale, collaborative, and complex research projects.

Dr. Brent Swallow

Brent Swallow (Co-Investigator)

Professor of ALES
University of Alberta
5-67 General Services Building
9007 - 116 St NW
Edmonton AB, T6G 2H1
Canada

Brent Swallow is a Professor at the Faculty of Agricultural, Life and Environmental Sci - Resource Economics & Environmental Sociology. He is an environment and development economist. His research interests include: Climate change mitigation in agriculture and forestry, rural poverty and economic development, water and watershed management, market-based instruments for environmental management, land tenure and property rights, economics of land use and food deserts and local food economy.

Dr. Cameron Carlyle

Cameron Carlyle (Co-Investigator)

Professor of ALES
University of Alberta
4-10H Agriculture/Forestry Centre
9011 - 116 St NW
Edmonton AB, T6G 2P5
Canada

Cameron Carlyle is an Associate Professor in the Dept. of Agricultural, Food and Nutritional Science in the Faculty of Agricultural, Life and Environmental Sci, University of Alberta. He conducts research in grassland and rangeland ecology with an emphasis on the effects of grazing management on soil carbon storage and the mechanisms controlling carbon cycling.

Dr. Changxi Li

Changxi Li (Co-Investigator)

Chair in Bovine Genomics
University of Alberta
2-41 General Services Building
9007 - 116 St NW
Edmonton AB, T6G 2H1
Canada

Dr. Li is Research Scientist with Agriculture and Agri-Food Canada (AAFC), AAFC Professor and AAFC Chair in Bovine Genomics at the Faculty of Agricultural, Life and Environmental Sci - Dept. of Agricultural, Food and Nutritional Science. His research focuses on bovine quantitative genetics and functional genomics. The current research interests include: (1) identification and characterization of genes for economically important traits including growth, feed efficiency, fat deposition, carcass merit traits, and fertility traits in beef cattle; (2) investigation of functions of DNA polymorphisms and elucidation of genetic mechanisms regulating growth, feed efficiency, fat deposition, meat quality, and fertility traits in beef cattle; (3) development of genomic tools to enable the beef industry to improve the above mentioned traits through genomic selection and genome assisted management.

Dr. David Wishart

David Wishart (co-investigator)

Professor
Departments of Computing Science and Biological Sciences
University of Alberta
Edmonton AB, T6G 2E8
Office: 341 Athabasca Hall
Canada
Tel: 780-492-0383

Professor in the Departments of Biological Sciences and Computing Science and a Fellow of the Royal Society of Canada. His extensive research interests encompass a wide range of fields, including metabolomics, proteomics, genomics, bioinformatics, analytical chemistry, food chemistry, natural product chemistry, molecular biology, protein chemistry, structural biology and nanotechnology and neuroscience. Some of his lab's most significant contributions have been in the area of protein chemical shift analysis and the prediction of protein structure. Dr. Wishart led the "Human Metabolome Project" (HMP), a comprehensive initiative involving multiple universities and investigators aimed at cataloging over 250,000 human metabolites in various human tissues and biofluids.

  1. Vanessa Neveu, Geneviève Nicolas, Reza M Salek, David S Wishart, Augustin Scalbert. Exposome-Explorer 2.0: An Update Incorporating Candidate Dietary Biomarkers and Dietary Associations With Cancer Risk. Nucleic Acids Res. 2020 Jan 8;48(D1):D908-D912. DOI: 10.1093/nar/gkz1009. PubMed: 31724701 

  2. Wishart DS, Li C, Marcu A, Badran H, Pon A, Budinski Z, Patron J, Lipton D, Cao X, Oler E, Li K, Paccoud M, Hong C, Guo AC, Chan C, Wei W, Ramirez-Gaona M. PathBank: a comprehensive pathway database for model organisms. Nucleic Acids Res. 2020 Jan 8;48(D1):D470-D478. DOI: 10.1093/nar/gkz861. PubMed: 31602464 

  3. DS Wishart. NMR metabolomics: A look ahead. J Magn Reson. 2019 Sep;306:155-161. DOI: 10.1016/j.jmr.2019.07.013. PubMed: 31377153

  4. Abdul-Hamid Emwas, Raja Roy, Ryan T McKay, Leonardo Tenori, Edoardo Saccenti, G A Nagana Gowda, Daniel Raftery, Fatimah Alahmari, Lukasz Jaremko, Mariusz Jaremko, David S Wishart. NMR Spectroscopy for Metabolomics Research. Metabolites. 2019 Jun 27;9(7):123. 23DOI: 10.3390/metabo9070123. PubMed: 31252628

  5. Rosa Vázquez-Fresno, Albert Remus R Rosana, Tanvir Sajed, Tuviere Onookome-Okome, Noah A Wishart, David S Wishart. Herbs and Spices-Biomarkers of Intake Based on Human Intervention Studies–A Systematic Review. Genes Nutr. 2019 May 22;14:18. DOI: 10.1186/s12263-019-0636-8. PubMed: 31143299

  6. Lipfert M, Rout MK, Berjanskii M, Wishart DS. Automated Tools for the Analysis of 1D-NMR and 2D-NMR Spectra. Methods in Molecular Biology (Clifton, N.J.). 2019. 2037: 429-449. DOI: 10.1007/978-1-4939-9690-2_24.  PubMed: 31463859

Dr. Derek MacKenzie

M Derek MacKenzie (Co-Investigator)

Associate Professor
Faculty of ALES
University of Alberta
Office: 348E South Academic Building
11328 - 89 Ave NW
Edmonton AB, T6G 2J7
Canada
Tel: (780) 492-6388

Associate Professor, Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept at the University of Alberta. His research area focuses on Agricultural Soil Health. He is interested in examining how regenerative farm practices, including the use of compost and biochar, can increase carbon sequestration and reduce GHG emissions.

Dr. Edward Bork

Edward Bork (co-investigator)

Professor
Faculty of ALES
University of Alberta
Office: 4-10E Agriculture/Forestry Centre
9011 - 116 St NW,
Edmonton AB, T6G 2P5
Canada
Tel: (780) 492-3843

Professor, Faculty of Agricultural, Life and Environmental Sci - Dept. of Agricultural, Food and Nutritional Science at the University of Alberta. Dr. Bork also serves as the Director of the Rangeland Research Institute at the University of Alberta. His research area includes Rangeland Ecology and Management. Major areas of investigation include the integrated control of weeds in pasture, agro-forestry production systems, landscape ecology including riparian grazing management, plant community responses to disturbance (grazing, drought and fire), forage agronomy and utilization, livestock-wildlife integration, rotational grazing applications, livestock behavior and production efficiency on pasture, and the ability of rangelands to provide multiple ecosystem services such as biodiversity, carbon storage, and greenhouse gas mitigation.

Dr. Gleise Medeiros da Silva

Gleise Medeiros da Silva (co-investigator)

Assistant Professor
Faculty of ALES
University of Alberta
Office: 410 Agriculture/Forestry Centre
9011 - 116 St NW,
Edmonton AB, T6G 2P5
Canada
Tel: (780) 492-0237

Assistant Professor and BCRC - Hays Chair in Beef Production Systems, Faculty of Agricultural, Life and Environmental Sci - Dept. of Agricultural, Food and Nutritional Science at the University of Alberta. Her research goals are to identify sustainable nutritional and management strategies able to enhance cattle health and performance, therefore, increasing profitability in the cow-calf sector. Her research interests include: stress mitigation, understanding the impacts of nutrition and management on physiology, immunity, and behavior of beef cattle, beef female nutrition and fetal-programming and identifying nutritional strategies in forage-based systems to reduce feeding costs.

    Dr. Jonathan A. Bennett

    Jonathan A. Bennett (co-investigator)

    Associate Professor
    Department of Plant Sciences
    University of Saskatchewan
    Office: 4D70 - Agriculture Building
    Saskatoon, SK
    Canada
    Tel: (306) 966-7492

    Associate Professor at the department of Plant Sciences, University of Saskatchewan. His lab focuses on basic and applied ecology focusing on plant-soil interactions. His research interests include: ecology and management of invasive species, plant-soil feedbacks, mycorrhizas, plant diversity and ecosystem functioning, functional traits and plant community assembly.

      Dr. Le Luo Guan

      Le Luo Guan (co-investigator)

      Professor
      Department of Agricultural, Food, and Nutritional Science
      University of Alberta
      Office: 416F Agriculture/Forestry Centre
      9011 - 116 St NW
      Edmonton AB, T6G 2P5
      Canada
      Tel: (780) 492-2480

      Professor of Department of Agricultural, Food and Nutritional Science. Her research primarily delves into understanding the molecular intricacies of host-microbial interactions, focusing on the characterization of bovine gut microbial ecology and its functions through metagenomics/metatranscriptomics approaches. Furthermore, Dr. Guan investigates host gene expression utilizing a functional genomics approach, exploring the association between gut microbial ecology and crucial aspects such as feed efficiency, methane emission, and gut immunity development in both beef and dairy cattle.

      In addition to her microbial research, she conducts in-depth analyses of the bovine transcriptome, proteome, and non-coding microRNAs, aiming to unravel their roles in various economically significant traits related to cattle.

        Dr. Malinda Thilakarathna

        Malinda Thilakarathna (co-investigator)

        Assistant Professor
        Faculty of ALES
        University of Alberta
        Office: 4-10F Agriculture/Forestry Centre
        9011 - 116 St NW,
        Edmonton AB, T6G 2P5
        Canada
        Tel: (780) 492-9966

        Assistant professor, Faculty of Agricultural, Life and Environmental Sci - Dept. of Agricultural, Food and Nutritional Science at University of Alberta. His research focuses on technologies that reduce the need for synthetic nitrogen fertilizers to grow crops by replacing them with more natural, biological resources. His current research interests include: assessment of beneficial microbes (probiotics) for improving nitrogen fixation in legumes and non-legumes, evaluating biostimulants that can improve nutrient use efficiency and alleviate abiotic stress in plants, and discovering the physiological mechanisms and factors that influence nitrogen fixation and belowground nitrogen transfer from legumes to non-legumes.

          Dr. Miles Dyck

          Miles Dyck (co-investigator)

          Professor
          Faculty of ALES
          University of Alberta
          Office: 338A Earth Sciences Building
          1223 Saskatchewan Drive NW,
          Edmonton AB, T6G 2E3
          Canada
          Tel: (780) 492-2886

          Professor, at Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept at University of Alberta. He is member of Canadian Society of Soil Science, Soil Science Society of America, Canadian Geophysical Union. His research areas include: Long-term agroecological experiments, soil fertility, transport processes, transport of mass and energy in managed and reconstructed ecosystems.

            Dr. Roland Kröbel

            Roland Kröbel (co-investigator)

            Research Scientist
            Agriculture and Agri-Food Canada
            Lethbridge Research and Development Centre.
            5403 1st Avenue South
            Lethbridge, AB
            Canada
            Tel: (403) 317-3434

            Research Scientist at Agriculture and Agri-Food Canada at the Lethbridge Research and Development Centre. His work focuses on the further development of AAFC's whole farm model Holos. He is interested in ecosystem modeling in agriculture, climate change, greenhouse gas emissions and N cycling.

              Dr. Scott Chang

              Scott Chang (co-investigator)

              Professor
              Faculty of Agricultural, Life and Environmental Sciences
              Renewable Resources Dept.
              11223 Saskatchewan Drive NW
              University of Alberta
              Edmonton AB, T6G 2E3
              Canada
              Tel: (780) 492-6375

              Professor, Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept. His research focuses on forest soil processes, soil microbial ecology, carbon sequestration, greenhouse gas emissions, application of N-15 tracer in forest soils research, forest fertilization, tree nutrition, forest ecophysiology, silviculture-soil management interactions, and land reclamation.

                Dr. Scott Jeffrey

                Scott Jeffrey (co-investigator)

                Professor
                Faculty of Agricultural, Life and Environmental Sciences
                Department of Resource Economics and Rural Sociology
                Office: 531 General Services Building
                9007 - 116 St NW
                University of Alberta
                Edmonton AB, T6G 2H1
                Canada
                Tel: (780) 492-5470

                Professor, Faculty of Agricultural, Life and Environmental Sci, Department of Resource Economics and Rural Sociology. His research focuses on Production and Resource Economics, Agricultural Business Management. Some of his research interests include: Productive efficiency in Canadian agriculture, agricultural risk management, environmental issues and agricultural production management and farm level economics of ecosystem service production.

                  Dr. Xiaoli Fan

                  Xiaoli Fan (co-investigator)

                  Assistant Professor
                  Faculty of Agricultural, Life and Environmental Sciences
                  Department of Resource Economics and Environmental Sociology
                  Office: 545 General Services Building
                  9007 - 116 St NW
                  University of Alberta
                  Edmonton AB, T6G 2H1
                  Canada
                  Tel: (780) 492-4711

                  Xiaoli Fan is an Assistant Professor, Faculty of Agricultural, Life and Environmental Sci- Department of Resource Economics and Environmental Sociology. She received her Ph.D. (2017) degree from the Dyson School of Applied Economics and Management, Cornell University, and her MSc (2009) and BA (2007) degrees in international economics from Wuhan University, China. Xiaoli’s research focuses on understanding consumer and producer behavior to inform better agricultural policies and decision-making. Her specific research interests include consumer preference for emerging food issues, agrifood sustainability, agrifood value chain coordination, antibiotic use in livestock, bioeconomic modeling, and agent-based modeling.


                    Students

                    Hongwei Li

                    Hongwei Li

                    I am a postdoc at Livestock Gentec, Dept. of Agricultural, Food and Nutritional Science in the Faculty of Agricultural, Life and Environmental Sci, University of Alberta. I majored in quantitative genetics and statistical genomics and had a good theoretical basis for animal genetic breeding. My research work mainly focused on optimization and development of models and algorithms to improve the accuracies of genomic prediction in Canadian beef cattle population.

                    Isaac Peetoom Heida

                    Isaac Peetoom Heida

                    Isaac got his BSc in Ecology from the U of A, and his MSc from UBC studying the role of silicon in cereal crop defense. He began his Ph.D at the University of Alberta in September 2023 and is taking the lead on the soil genomics research in the CAT-G project. He is passionate about applying plant and soil ecology to improve food system sustainability.

                    Dolapo Adepoju

                    Dolapo Adepoju

                    Dolapo received his master's degree in Animal Science from the Swedish University of Agricultural Sciences. Currently, he's enrolled as a Ph.D. student at the Department of Agricultural Food and Nutritional Science, University of Alberta. He's working on understanding the effects of different grazing systems on enteric methane and carbon emissions in beef cattle. He'll also examine the microbiome communities in cattle fecal samples and their roles in greenhouse gas emissions.

                    Esther Taiwo image

                    Esther Taiwo

                    I am an enthusiastic and dedicated researcher with a passion for genetics and genomic. My academic background includes a Bachelor of Science degree in Animal Science from Osun State University, Nigeria, and a Master’s degree in European Master in Animal Breeding and Genetics, as an Erasmus Mundus Joint Master’s Degree scholarship recipient, at Georg-August University Gottingen, Germany, and Swedish University of Agricultural Science Uppsala, Sweden. My PhD research will explore the genetic/genomic links between enteric methane production, residual feed intake, and cattle performance traits. It will focus on understanding the genetic controls of these traits and utilizing advanced genomic and management techniques to mitigate methane emissions while enhancing beef production efficiency and quality.

                    Heather Anderson image

                    Heather Anderson

                    My name is Heather, and I’m a master’s student working on the CAT-G project. Throughout my undergraduate studies, I’ve been particularly interested in studying plant and insect communities. This interest led me to conduct a thesis on plant behavior and work with honey bees during the summer. For the CAT-G project, I will be examining these communities in the context of various cattle grazing systems.


                    Biographies and Selected Publications

                    Dr. Elda Dervishi

                    Elda Dervishi (Project Manager)

                    Research Manager
                    University of Alberta
                    B704B, Bio Science - Botany Wing
                    11355 - Saskatchewan Drive
                    Edmonton AB, T6G 2E9
                    Canada

                    CAT-G Research manager. University of Alberta. Her research interests include application of omics technologies (metabolomics, genomics and transcriptomics) to livestock species.