Institute of Grassland Science

Dr. Dina Hamidi - Postdoc

Research interest


  • Pasture technology: virtual fencing
  • Sustainable livestock-grazing-systems
  • GPS-supported movement data
  • Animal behaviour patterns
  • Water Management
  • Peatland
  • Climate Change Adaption



Current Project:

Joint project climate protection concept district Wesermarsch / land use - agricultural land use in climate change

Short CV

since 2023: Postdoc - Joint project climate protection concept district Wesermarsch / land use - agricultural land use in climate change

since 2020: Ph.D. researcher at the Department of Crop Science/Grassland Science, Georg-August-University Göttingen
Topic: GreenGrass: Agronomic and technological evaluation of innovative grazing systems
Thesis: Using smart farming technologies to improve the sustainability of livestock grazing systems

2019-2020: Project worker DAS-Projekt „Netzwerke Wasser 2.0“ (Federal Agency of Agriculture in Niedersachsen)

2016-2018: Studies of Water Resources and the Environmental Management (M.Sc.) at the Gottfried Wilhelm Leibniz Universität in Hannover
Thesis: Derivation of recommendations for action for the development of urban over-developed and artificial water bodies with special consideration of historical research (implementation of the WFD)

2010-2013: Studies of Agriculture/Agrarmanagement (B.Sc.) at the Hochschule Anhalt in Bernburg
Thesis: Analysis of the training situation in the agricultural sector in Lower Saxony

Publications

Wilms, L., Komainda, M., Hamidi, D., Riesch, F., Horn, J., Isselstein, J., 2024. How do grazing cattle respond to virtual fences? A review. Journal of Animal Science https://doi.org/10.1093/jas/skae108

Hamidi, D., Grinnell, N., Komainda, M., Wilms, L., Riesch, F., Horn, J., Hamidi, M., Traulsen, I., Isselstein, J., 2024. Training cattle for virtual fencing – different approaches to determine learning success. Resubmitted after minor revision to Applied Animal Behaviour Science https://doi.org/10.1016/j.applanim.2024.106220

Hamidi, D., Hütt, C., Komainda, M., Grinnell, N.A., Horn, J., Riesch, F., Hamidi, M., Traulsen, I., Isselstein, J., 2023. Grid grazing: A case study on the potential of combining virtual fencing and remote sensing for innovative grazing management on a grid base. Livestock Science 278 105373. https://doi.org/10.1016/j.livsci.2023.105373

Hamidi, D., Komainda, M., Grinnell, N. A., Riesch, F., Horn, J., Hamidi, M., Traulsen, I., Isselstein, J., 2023. More than a fencing system? Testing the validity of virtual fencing collars for cattle monitoring on pasture. 25. International Grassland Congress, May 14-19 in Kentucky, USA, (2023)

Hamidi, D., Komainda, M., Grinnell, N. A., Wilms, L., Riesch, F., Horn, J., Hamidi, M., Traulsen I., Isselstein J., 2023. Virtual fencing predictable for cattle? 25. International Grassland Congress, May 14-19 in Kentucky, USA, (2023)

Grinnell N.A., Komainda M., Tonn B., Hamidi D. & Isselstein J. (2023). Long-term effects of extensive grazing on pasture productivity. Animal Production Science. https://doi.org/10.1071/AN22316

Hamidi D., Komainda M., Tonn B., Harbers J., Grinnell N. & Isselstein J. (2021). The Effect of Grazing Intensity and Sward Heterogeneity on the Movement Behavior of Suckler Cows on Semi-natural Grassland. Frontiers in Veterinary Science, 8, Article 639096, https://doi.org/10.3389/fvets.2021.639096

Hamidi, D., Grinnell, N.A., Komainda, M., Riesch, F., Horn, J., Ammer, S., Traulsen, I., Palme, R., Hamidi, M., Isselstein, J. 2022. Heifers don't care: no evidence of negative impact on animal welfare growing heifers when using virtual fences compared to physical fences for grazing. ANIMAL. The international journal of animal biosciences, 100614 .https://doi.org/10.1016/j.animal.2022.100614

In Conference Proceedings

Grinnell N., Komainda M., Hamidi D., Riesch F., Horn J., Traulsen I., Palme R., Isselstein J., 2024. Virtual fencing in rotational stocking systems: stress levels of grazing heifers. Grassland Science in Europe 29, 566-568.

Hamidi D., Hütt C., Komainda M., Grinnell N.A., Horn J., Riesch F., Hamidi M., Traulsen I., Isselstein J., 2024. Asking grazing cattle: using virtual fencing collars to make forage availability dynamics visible. Grassland Science in Europe 29, 630-632.

Hamidi D., Sieve F., Siede C., Wilms L., Zinken L., Kunz F., Kayser M., Hamidi M., Isselstein J., 2024. Solar grazing - spatial distribution of sheep in free-field-photovoltaik systems on grassland. Grassland Science in Europe 29, 452-454.

Siede C., Pohlmann W., Juch A., Hamidi D., Isselstein J., Komainda M., 2024. Bite item diversity and bite item quality in an extensive grazing system with suckler cows. Grassland Science in Europe 29, 813-815.

Wilms L., Hamidi D., Lüntzel C.H.U., Isselstein J., Waiblinger S., Egerbacher M., 2024. Introducing goats to virtual fencing. Grassland Science in Europe 29, 624-626.

Zinken L., Hamidi D., Tegtmeyer P., Kayser M., Isselstein J., 2024. Microclimate, grass growth and herbage quality of peat grassland under free field photovoltaic modules. Grassland Science in Europe 29, 49-51.

Hamidi, D., Grinnell, N.A., Komainda, M., Wilms, L., Riesch, F., Horn, J., Hamidi, M., Traulsen, I., Isselstein J., 2023. The visibility of the invisible: Analysing heifers reactions while learning the virtual fence system. 74. Annual Meeting, European Federation of Animal Science, August 26th – September 1st, 2023 in Lyon, France, 443

Hamidi D., Komainda M., Grinnell N. A., Riesch F., Horn J., Hamidi, M., Traulsen I., Isselstein J., 2023. Monitoring animal movements by virtual fencing collars – a comparison of different time intervals. 74. Annual Meeting, European Federation of Animal Science, August 26th – September 1st, 2023 in Lyon, France, 247

Hamidi, D., Komainda, M., Grinnell, N. A., Riesch F., Horn, J., Hamidi, M., Traulsen, I., Isselstein, J., 2023. More than a fencing system? Testing the validity of virtual fencing collars for cattle monitoring on pasture. 25. International Grassland Congress, May 14-19 in Kentucky, USA, (2023)

Hamidi, D., Komainda, M., Grinnell, N. A., Wilms, L., Riesch F., Horn, J., Hamidi, M., Traulsen I., Isselstein J., 2023. Virtual fencing predictable for cattle? 25. International Grassland Congress, May 14-19 in Kentucky, USA, (2023)

Hamidi D., Grinnell N. A., Horn J., Riesch F., Komainda M., Ammer S., Traulsen I., Isselstein J., 2021. Training cattle with virtual fences on permanent pastures. Grassland Science in Europe 26, 187-189.

Hamidi D., Komainda M., Tonn B., Harbers J., Grinnell N. A., Isselstein J., 2021. Movement behaviour of cattle analysed with GPS data as affected by three different grazing intensities. Grassland Science in Europe 26, 175-177.

Grinnell N. A., Hamidi D., Horn J., Riesch F., Komainda M., Ammer S., Traulsen I., Isselstein J., 2021. The effect of virtual fencing technology on grazing behaviour: differences in herbage consumption. Grassland Science in Europe 26, 181-183.

Grinnell N. A., Hamidi D., Riesch F., Horn J., Komainda M., Ammer S., Traulsen I., Isselstein J., 2021. Testing the validity of a precision dairy ear sensor technology in recording grazing time. Grassland Science in Europe 26, 205-207.

Hamidi D., Komainda M., Grinnell N. A., Horn J., Riesch F., Ammer S., Hamidi, M., Traulsen I., Isselstein J., 2022. Effects of electrical impulses on cattle grazing behaviour: virtual vs. physical fencing. Grassland Science in Europe 27, 602-604

Hamidi D., Hütt C., Komainda M., Grinnell N. A., Horn J., Riesch F., Hamidi, M., Traulsen I., Isselstein J., 2022. Spatial distribution of virtually and physically fenced cattle in relation to forage availability. Grassland Science in Europe 27, 599-601

Grinnell N. A., Komainda M., Tonn B., Hamidi D., Isselstein J., 2022 Extensively managed grasslands: productivity after more than a decade without fertilizer input. Grassland Science in Europe 27, 161-163

Hamidi D., Komainda M., Grinnell N. A., Horn J., Riesch F., Hamidi, M., Traulsen I., Isselstein J., 2022. Veränderungen im Tierverhalten als Umtriebsindikation. Internationale Weidetagung 2022, Grenzen und Möglichkeiten der Weidehaltung im Berggebiet, 25

Hamidi D., Komainda M., Grinnell N. A., Horn J., Riesch F., Hamidi, M., Ammer S., Traulsen I., Isselstein J., 2022. Ruhen auf der Weide – Möglichkeiten der Detektion mit Hilfe von GPS Daten aus virtuellen Zäunungshalsbändern. Internationale Weidetagung 2022, Grenzen und Möglichkeiten der Weidehaltung im Berggebiet, 77

Hamidi D., Komainda M., Grinnell N. A., Riesch F., Horn J., Hamidi, M., Traulsen I., Isselstein J., 2022. Virtuelles Zäunen: Chancen für eine verbesserte Tierüberwachung?Arbeitsgemeinschaft für Grünland und Futterbau, Grünland im Spannungsfeld Forschung, Wissenstransfer und öffentliche Wahrnehmungen 65, 97-99

Hamidi D., Grinnell N. A., Horn J., Riesch F., Komainda M., Ammer S., Traulsen I., Isselstein J., 2022. Virtuelles Zäunen: Brauchen Rinder sichtbaren Zäune? 15. Tagung: Bau, Technik und Umwelt in der landwirtschaftlichen Nutztierhaltung. 95-98

Grinnell N. A., Hamidi D., Riesch F., Horn J., Komainda M., Ammer S., Traulsen I., Isselstein J., 2022. Nutzung von Smart Farming Sensoren in der Weidehaltung von Rindern. 15. Tagung: Bau, Technik und Umwelt in der landwirtschaftlichen Nutztierhaltung. 70-74

Jauker, F., Hamidi, D., Baumann, K., Komainda, M., Hütt, C., Isselstein, J., Wolters, V., Precision grazing for biodiversity? Spatio-temporal scales of grazing effects on vegetation structure and arthropod abundance. GfÖ Jahrestagung am 21. bis 25. November 2022 in Metz, Frankreich