Roi Harel
Interest:
My research deals with group foraging of Griffon Vultures (gyps fulvus) and information transfer while searching for the ephemeral food resource. Using a new GPS-3D accelerometer tracking device and new technology of long range radio tags, I'm trying to differentiate between several information transfer mechanisms in the local vulture population such as local enhancement and information center. The local vulture population present a great opportunity to test this question due to the control we have on the food resource and due to the ability to mark great proportion of the population. The low conservation status gives one more reason to study this species. Studying what affect individuals decisions while searching for food can contribute to the conservation for this and related species.
Role:
Alumni
Years:
2009-2017
Email(s):
Phone:
+972-(0)2-6586110
Fax:
+972-(0)2-6586080
Address:
Department of Ecology, Evolution and Behavior, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel
Publications
Tucker, M. A., O. Alexandrou, R. O. Bierregaard Jr., K. L. Bildstein, K. Böhning-Gaese, C. Bracis, J. N. Brzorad, E. R. Buechley, D. Cabot, J. M. Calabrese, C. Carrapato, A. Chiaradia, L. C. Davenport, S. C. Davidson, , , M. Desholm, C. R. DeSorbo, R. Domenech, P. Enggist, W. F. Fagan, N. Farwig, W. Fiedler, C. H. Fleming, A. Franke, J. M. Fryxell, C. García-Ripollés, D. Grémillet, L. R. Griffin, R. Harel, A. Kane, R. Kays, , E. Kleyheeg, A. E. Lacy, S. LaPoint, R. Limiñana, P. López-López, A. D. Maccarone, U. Mellone, E. K. Mojica, R. Nathan, S. H. Newman, M. J. Noonan, S. Oppel, M. Prostor, E. C. Rees, Y. Ropert-Coudert, S. Rösner, N. Sapir, D. Schabo, M. Schmidt, , H. Schulz, M. Shariati, A. Shreading, J. Paulo Silva, H. Skov, O. Spiegel, J. Y. Takekawa, C. S. Teitelbaum, M. L. van Toor, V. Urios, J. Vidal-Mateo, Q. Wang, B. D. Watts, M. Wikelski, K. Wolter, R. Žydelis, and T. Mueller, (2019) Large birds travel farther in homogeneous environments | Global Ecology and Biogeography 576-587 : 28
Harel, R., and R. Nathan, (2018) The characteristic time‐scale of perceived information for decision‐making: Departure from thermal columns in soaring birds | Functional ecology 2065-2072 : 8
Efrat, R., R. Harel, O. Alexandrou, G. Catsadorakis, and R. Nathan, (2018) Seasonal differences in energy expenditure, flight characteristics and spatial utilization of Dalmatian Pelicans Pelecanus crispus in Greece | Ibis 415-427
Harel, R., O. Spiegel, W. M. Getz, and R. Nathan, (2017) Social foraging and individual consistency in following behaviour: testing the information centre hypothesis in free-ranging vultures | Proceedings of the Royal Society B 20162654 : 284
Harel, R., O. Duriez, O. Spiegel, J. Fluhr, N. Horvitz, W. M. Getz, W. Bouten, F. Sarrazin, O. Hatzofe, and R. Nathan, (2016) Decision-making by a soaring bird: time, energy and risk considerations at different spatiotemporal scales | Philosophical Transactions of the Royal Society B