1. Kiat, Y., Davaasuren, B., Erdenechimeg, T., Troupin D. and N. Sapir. 2020. Large-scale longitudinal climate gradient across the Palearctic region affects passerine feather moult extent. Ecography 43. doi: Abstract Full-text
  2. Fandos, G., Rotics, S., Sapir, N., Fiedler, W., Kaatz, M., Wikelski, M., Nathan, R. and D. Zurell. 2020. Seasonal niche tracking of climate emerges at the population level in a migratory bird. Proceedings of the Royal Society B. 287: 20201799. doi: Abstract Full-text 
  3. Kiat, Y., Balaban, A., Sapir, N., O’Connor, J.K., Wang, M., and X. Xu. 2020. Sequential Molt in a Feathered Dinosaur and Implications for Early Paravian Ecology and Locomotion. Current Biology S0960-9822 (20) 30862-9. doi: Abstract Full-text  
  4. Becciu, P., Rotics, S., Horvitz, N., Kaatz, M., Fiedler, W., Zurell, D., Flack, A., Jeltsch, F., Wikelski, M., Nathan, R. and N. Sapir. 2020. Causes and consequences of facultative sea crossing in a soaring migrant. Functional Ecology 34: 840-854. doi: Abstract Full-text
  5. Kiat, Y., Vortman, Y., and N. Sapir. 2019. Feather moult and bird appearance are correlated with global warming over the last 200 years. Nature Communications 10 (2540). doi: Abstract Full-text
  6. Domer, A., Shochat, E., Ovadia, O., and N. Sapir. 2019. Fruit consumption in migratory passerines is limited by water ingestion rather than by body water balance. Journal of Avian Biology (In press). doi: Abstract Full-text 
  7. Becciu, P., Menz, M.H.M., Aurbach, A., Cabrera-Cruz., S., Wainwright, C., Scacco, M., Ciach, M., Petterson, L., Maggini, I., Arroyo, G., Buler, J., Reynolds, D., and N. Sapir. 2019. Environmental effects on flying migrants revealed by radar. Ecography 42 (5). doi: Abstract Full-text
  8. Panuccio, M., Stanzione, V., Catoni, C., Bogliani, G., Dell'Omo, G., and N. Sapir. 2019. Migrating birds avoid flying through fog and low clouds. International Journal of Biometeorology 63 (2) 231-239. doi: Abstract Full-text 
  9. Tucker, M.A., Alexandrou O., Bierregaard R.O. Jr., et al. (including Sapir, N.). 2019. Large birds travel farther in homogenous environments. Global Ecology and Biogeography 28 (5). doi: Abstract Full-text
  10. Liechti, F., Aschwanden, J., Blew, J., Boos, M., Brabant, R., Dokter, A., Kosarev, V., Lukach, M., Maruri, M.M., Reyniers, M., Schekler, I., Scmaljohann, H., Weisshaupt, N., and N. Sapir. 2018. Cross-calibration of different radar systems for monitoring nocturnal bird migration across Europe and the Near East. Ecography 42 (5). doi: Abstract Full-text 
  11. Kiat, Y., Izhaki, I., and N. Sapir. 2018. The effects of long-distance migration on the evolution of moult strategies in Western-Palearctic passerines. Biological Reviews 94 (2). doi: Abstract Full-text 
  12. Nilsson, C., Dokter, A., Verlinden, L., Shamoun-Baranes, J., Schmid, B., Desmet, P., Bauer, S., Chapman, J., Alves, J.A., Stepanian, P.M., Sapir, N., Wainwright, C., Boos, M., Górska, A., Menz, M.H.M, Rodrigues, P., Leijnse, H., Zehtindjiev, P., Brabant, R., Haase, G., Weisshaupt, N., Ciach, M., and F. Liechti. 2018. Revealing patterns of nocturnal migration using the European weather radar network. Ecography 42: 1-11. doi: Abstract Full-text 
  13. Kiat, Y. and N. Sapir. 2018. Life-history tradeoffs result in evolutionary optimization of feather quality. Biological Journal of the Linnean Society 125(3):613–624. doi: Abstract Full-text 
  14. Rotics., S., Kaatz, M., Turjeman, S., Zurell, D., Wikelski, M., Sapir, N., Eggers, U., Fiedler, W., Jeltsch, F., and R. Nathan. 2018. Early arrival to breeding grounds: causes, costs and a trade-off with overwintering latitude. Journal of Animal Ecology 87:16271638. doi: Abstract Full-text 
  15. Zurell, D., von Wehrden, H., Rotics, S., Kaatz, M., Gross, H., Schlag, L., Schäfer, M., Sapir, N., Turjeman, S., Wikelski, M., Nathan, R. and F. Jeltsch. 2018. Home range size and resource use of breeding and non-breeding white storks along a land use gradient. Frontiers in Ecology and Evolution 6: 79. doi: Abstract Full-text 
  16. Achache, Y., Sapir, N., and Y. Elimelech. 2018. Hovering hummingbird wing aerodynamics during the annual cycle. II. Implications of wing feather moult. Royal Society Open Science 5: 171766. doi: Abstract Full-text 
  17. Becciu, P., Panuccio, M., Catoni, C., Dell'Omo, G., and N., Sapir. 2018. Contrasting aspects of tailwinds and asymmetrical response to crosswinds in soaring migrants. Behavioral Ecology and Sociobiology 72(28). doi: Abstract Full-text 
  18. Tucker, M.A., Böhning-Gaese, K., Fagan, W.F., Fryxell, J.M., Van Moorter, B., Alberts, S.C., Ali, A.H., Allen, A.M., Attias, N., Avgar, T., Bartlam-Brooks, H., Bayarbaatar, B., Belant, J.L., Bertassoni, A., Beyer, D., Bidner, L., van Beest, F.M., Blake, S., Blaum, N., Bracis, C., Brown ,D., de Bruyn, P.J.N., Cagnacci, F., Calabrese, J.M., Camilo-Alves, C., Chamaillé-Jammes, S., Chiaradia, A., Davidson, S.C., Dennis, T., De Stefano, S., Diefenbach, D., Douglas-Hamilton, I., Fennessy, J., Fichtel, C., Fiedler, W., Fischer, C., Fischhoff, I., Fleming, C.H., Ford, A.T., Fritz, S.A., Gehr, B., Goheen, J.R., Gurarie, E., Hebblewhite, M., Heurich, M., Hewison, A.J.M, Hof, C., Hurme, E., Isbell, L.A., Janssen, R., Jeltsch, F., Kaczensky, P., Kane, A., Kappeler, P.M., Kauffman, M., Kays, R., Kimuyu, D., Koch, F., Kranstauber, B., LaPoint, S., Leimgruber, P., Linnell, J.D.C., López-López, P., Markham, A.C., Mattisson, J., Medici, E.P., Mellone, U., Merrill, E., de Miranda Mourão, G., Morato, R.G., Morellet, N., Morrison, T.A., Díaz-Muñoz, S.L., Mysterud, A., Nandintsetseg, D., Nathan, R., Niamir, A., Odden, J., O’Hara, R.B., Oliveira-Santos, L.G.R., Olson, K.A., Patterson, B.D., de Paula, R.C., Pedrotti, L., Reineking, B.,Rimmler, M., Rogers, T.L., Rolandsen, C.M., Rosenberry, C.S., Rubenstein, D.I., Safi, K., Saïd, S., Sapir, N., Sawyer, H., Schmidt, N.M., Selva, N., Sergiel, A., Shiilegdamba, E., Silva, J.P., Singh, N., Solberg, E.J., Spiegel, O., Strand, O., Sundaresan, S., Ullmann, W., Voigt, U., Wall, J., Wattles, D., Wikelski, M., Wilmers, C.C., Wilson, J.W., Wittemyer, G., Zięba, F., Zwijacz-Kozica, T., and T. Mueller. 2018. Moving in the Anthropocene: Global reductions in terrestrial mammalian movements. Science 359 (6374):466-469. doi: 10.1126/science.aam9712 Abstract Full-text 

  19. Agostini, N., Panuccio, M., Pastorino, A., Sapir, N., and G. Dell’Omo. 2017.Migration of the Western Marsh Harrier to the African wintering quarters along the Central Mediterranean flyway: a 5‑year study. Avian Research 8: 24. doi: Abstract Full-text 
  20. Achache, Y., Sapir, N., and Y. Elimelech. 2017. Hovering hummingbird wingaerodynamics during the annual cycle. I.Complete wing. Royal Society Open Science 4: 170183. doi: Abstract Full-text
  21. Bauer, S., Chapman, J.W., Reynolds, D.R., Alves, J.A., Dokter, A.M., Menz, M.M.H., Sapir, N., Ciach, M., Petterson, L.B., Kelly, J.F., Leijnse, H., and J. Shamoun-Baranes. 2017. From Agricultural Benefits to Aviation Safety: Realizing the Potential of Continent-Wide Radar Networks. Bioscience bix074. doi: Abstract Full-text
  22. Rotics, S., Turjeman, S., Kaatz, M., Resheff, Y.S., Zurell, D., Sapir, N., Eggers, U., Fiedler, W., Flack, A., Jeltsch, F., Wikelski, M., and R. Nathan. 2017. Wintering in Europe instead of Africa enhances juvenile survival in a long-distance migrant. Animal Behaviour 126: 79-88. doi: Abstract Full-text
  23. Kiat, Y. and N. Sapir. 2017. Age-dependent modulation of songbird summer feather moult by temporal and functional constraints. The American Naturalist 189 (2):184-195. Abstract Full-text
  24. Hu, G., Lim, K.S., Horvitz, N., Clark, S.J., Reynolds, D.R., Sapir, N., and J.W. Chapman. 2016. Mass seasonal bioflows of high-flying insect migrants. Science 354 (6319): 1584-1587. Abstract Full-text
  25. Kiat, Y., Izhaki, I., and N. Sapir. 2016. Determinants of wing-feather moult speed in songbirds. Evolutionary Ecology 30 (4): 738-795. doi: 10.1007/s10682-016-9838-3. Abstract Full-text
  26. Rotics, S., Kaatz, M., Resheff, Y.S., Feldman Turjeman, S., Zurell, D., Sapir, N., Eggers, U., Flack, A., Fiedler, W., Jeltsch, F., Wikelski, M., and R. Nathan. 2016. The challenges of the first migration: movement and behavior of juvenile versus adult white storks with insights regarding juvenile mortality. Journal of Animal Ecology. doi:10.1111/1365-2656.12525. Abstract Full-text
  27. Efrat, R., Shani, G., Gutman, R., and N. Sapir. 2015. Does saline water consumption affect feeding and fuel deposition rate of a staging, long-distance migrating passerine? Journal of Avian Biology 47 (3): 378-385. doi:10.1111/jav.00770. Abstract Full-text
  28. Buchin, K., Sijben, S., van Loon, E.E., Sapir, N., Mercier, S., Arseneau, T.J-M., and E.P. Willems. 2015. Deriving movement properties and the effect of the environment from the Brownian bridge movement model in monkeys and birds. Movement ecology 3 (1):18-18. doi: 10.1186/s40462-015-0043-8. Abstract Full-text
  29. Zurell, D., Eggers, U., Kaatz, M., Rotics, S., Sapir, N., Wikelski, M., Nathan, R., and F. Jeltsch. 2015. Individual-based modelling of resource competition to predict density-dependent population dynamics: a case study with white storks. Oikos 124 (3):319-330. doi: 10.1111/oik.01294. Abstract Full-text
  30. Horvitz, N., Sapir, N.,(equal contribution of the first two authors), Liechti, F., Avissar, R., Mahrer, I., and R. Nathan. 2014. The gliding speed of migrating birds: slow and safe or fast and risky? Ecology Letters 17 (6):670-679. doi: 10.1111/ele.12268. Abstract Full-text
  31. Sapir, N., Horvitz, N., (equal contribution of the first two authors), Dechmann, D.K.N., Fahr, J., and M. Wikelski. 2014. Commuting fruit bats beneficially modulate their flight in relation to wind. Proceedings of the Royal Society B-Biological Sciences 281 (1782). doi: 10.1098/rspb.2014.0018. Abstract Full-text
  32. Ortega-Jimenez, V.M., Sapir, N., (equal contribution of the first two authors), Wolf, M., Variano, E.A., and R. Dudley. 2014. Into turbulent air: size-dependent effects of von Karman vortex streets on hummingbird flight kinematics and energetics. Proceedings of the Royal Society B-Biological Sciences 281 (1783). doi: 10.1098/rspb.2014.0180. Abstract Full-text
  33. Sapir, N., Horvitz, N., Wikelski, M., Avissar, R., and R. Nathan. 2014. Compensation for lateral drift due to crosswind in migrating European Bee-eaters. Journal of Ornithology 155 (3):745-753. doi: 10.1007/s10336-014-1060-x. Abstract Full-text
  34. Sapir, N., and R. Dudley. 2013. Implications of floral orientation for flight kinematics and metabolic expenditure of hover-feeding hummingbirds. Functional Ecology 27 (1):227-235. doi: 10.1111/1365-2435.12024. Abstract Full-text
  35. Sapir, N., and R. Dudley. 2012. Backward flight in hummingbirds employs unique kinematic adjustments and entails low metabolic cost. Journal of Experimental Biology 215 (20):3603-3611. doi: 10.1242/jeb.073114. Abstract Full-text
  36. Lerner, A., Haspel, C., Sapir, N., Meltser, N., Broza, M., and N. Shashar. 2012. Insights from chironomid oviposition is useful to visual pest control. Fauna Norvegica 31:65-70. doi: 10.5324/fn.v31i0.1404. Abstract Full-text
  37. Sapir, N., Horvitz, N., Wikelski, M., Avissar, R., Mahrer, Y., and R. Nathan. 2011. Migration by soaring or flapping: numerical atmospheric simulations reveal that turbulence kinetic energy dictates bee-eater flight mode. Proceedings of the Royal Society B-Biological Sciences 278 (1723):3380-3386. doi: 10.1098/rspb.2011.0358. Abstract Full-text
  38. Sapir, N., Wikelski, M., Avissar, R., and R. Nathan. 2011. Timing and flight mode of departure in migrating European bee-eaters in relation to multi-scale meteorological processes. Behavioral Ecology and Sociobiology 65 (7):1353-1365. doi: 10.1007/s00265-011-1146-x. Abstract Full-text
  39. Lerner, A., Sapir, N., (equal contribution of the first two authors),Erlick, C., Meltser, N., Broza, M., and N. Shashar. 2011. Habitat availability mediates chironomid density-dependent oviposition. Oecologia 165 (4):905-914. doi: 10.1007/s00442-010-1893-9. Abstract Full-text
  40. Sapir, N., Wikelski, M., McCue, M.D., Pinshow, B., and R. Nathan. 2010. Flight Modes in Migrating European Bee-Eaters: Heart Rate May Indicate Low Metabolic Rate during Soaring and Gliding. Plos One 5 (11). doi: 10.1371/journal.pone.0013956. Abstract Full-text
  41. Bowlin, M.S., Bisson, I-A., Shamoun-Baranes, J., Reichard, J.D., Sapir, N., Marra, P.P., Kunz, T.H., Wilcove, D.S., Hedenstrom, A., Guglielmo, C.G., Akesson, S., Ramenofsky, M., and M. Wikelski. 2010. Grand Challenges in Migration Biology. Integrative and Comparative Biology 50 (3):261-279. doi: 10.1093/icb/icq013.9. Abstract Full-text
  42. Lerner, A., Meltser, N., Sapir, N., Erlick, C., Shashar, N., and M. Broza. 2008. Reflected polarization guides chironomid females to oviposition sites. Journal of Experimental Biology 211 (22):3536-3543. doi: 10.1242/jeb.022277. Abstract Full-text
  43. Tsurim, I., Sapir, N., Belmaker, J., Shanni, I., Izhaki, I., Wojciechowski, M.S., Karasov, W.H., and B. Pinshow. 2008. Drinking water boosts food intake rate, body mass increase and fat accumulation in migratory blackcaps (Sylvia atricapilla). Oecologia 156 (1):21-30. doi: 10.1007/s00442-008-0970-9. Abstract Full-text
  44. Nathan, R., Sapir, N., Trakhtenbrot, A., Katul, G. G., Bohrer, G., Otte, M., Avissar, R., Soons, M. B., Horn, H. S., Wikelski, M., and S. A. Levin. 2005. Long-distance biological transport processes through the air: can nature's complexity be unfolded in silico? Diversity and Distributions 11 (2):131-137. doi: 10.1111/j.1366-9516.2005.00146.x.7. Abstract Full-text
  45. Sapir, N., Tsurim, I., Gal, B., and Z. Abramsky. 2004. The effect of water availability on fuel deposition of two staging Sylvia warblers. Journal of Avian Biology 35 (1):25-32. doi: 10.1111/j.0908-8857.2004.03212.x. Abstract Full-text
  46. Sapir, N., Abramsky, Z., Shochat, E., and I. Izhaki. 2004. Scale-dependent habitat selection in migratory frugivorous passerines. Naturwissenschaften 91 (11):544-547. doi: 10.1007/s00114-004-0564-2. Abstract Full-text
  47. Sapir, N. 2003. Six new breeding bird species in Israel during 1995-2002. Israel Journal of Zoology 49 (2-3):203-218. doi: 10.1560/equx-h2j9-fjq1-q5rg. Abstract Full-text

Book chapters

  1. Sapir, N., Butler, P.J.,Wikelski, M., and A. Hedenström. 2011. Energy Gain and Use During Animal Migration. In Fryxell, J.M., E.J., Milner-Gulland, and A.R.E. Sinclair. (eds.), Animal Migration – A Synthesis. Oxford: Oxford University Press. Abstract Full-text

Book reviews

  1. Sapir, N. 2015. Scaling up the understanding of animal movement [review of Hansson,L-A and Åkesson S. (eds). 2014. Animal movement across scales. New York: Oxford University Press]. Ecology 96(10): 2850-2851. Full-text

Other publications

  1. Toledo, S., Kishon, O., Orchan, Y., Bartan, Y., Sapir, N., Vortman, Y. and R. Nathan. 2014. Lightweight low-cost wildlife tracking tags using integrated transceivers. Proceedings of the 6th EDERC Conference (European Embedded Design in Education & Research), Milan Italy. pp. 287-291. doi: 10.1109/EDERC.2014.6924406 Abstract Full-text
  1. Sapir, N. 2014. The bird collection, including the collection of Israel Aharoni. Haasiana (newsletter of the biological collections of the Hebrew University of Jerusalem) 7:1-8. Abstract Full-text
  2. Sapir, N., Rotics, S., Kaatz, M., Davidson, S., Zurell, D., Eggers, U., Jeltsch, F., Nathan, R., and M. Wikelski. 2013. Multi-year tracking of White storks (Ciconia ciconia): how the environment shapes the movement and behavior of a soaring-gliding inter-continental migrant. Proceedings of the 2013 meeting of the Society for Integrative and Comparative Biology, in Integrative and Comparative Biology 53(S1): E189. 
  3. Sapir, N., Nathan, R., Wikelski, M., and R. Avissar. 2010. The effect of weather on migrating bee-eaters studied by radio-telemetry and numeric atmospheric model. Proceedings of the 2010 meeting of the Society for Integrative and Comparative Biology, in Integrative and Comparative Biology 50(S1): E156. Abstract
  4. Sapir, N., Nathan, R. and M. Wikelski. 2009. Heart-rates of European bee-eaters migrating over southern Israel. Proceedings of the 2009 meeting of the Society for Integrative and Comparative Biology, in Integrative and Comparative Biology 49(S1): E151. 
  5. Sapir, N., Nathan, R., Wikelski, M. and R. Avissar. 2009. The effects of meteorological conditions on migrating bird take-off time from stopover site: how accurate is bird decision? Supplemental proceedings of the 45th meeting of the Zoological Society of Israel, in Israel Journal of Ecology and Evolution 56(1): 101. 
  6. Sapir N. 2005. Summary of reports from the ISRABIRDNET – mailing list for birding in Israel, for the year 2004. Torgos 33: 74-79 (In Hebrew, with an English summary in Torgos 33:82).
  7. Sapir N. 2004. Summary of reports from the ISRABIRDNET – mailing list for birding in Israel, for the year 2003. Torgos 32: 82-89 (In Hebrew).
  8. Perlman, Y. and N. Sapir. 2004. Israel bird rarities committee: summary of rare bird species records for the years 1995-2003. Torgos 32:66-71 (In Hebrew).
  9. Sapir N. 2003. Summary of reports from the ISRABIRDNET – mailing list for birding in Israel, for the year 2002. Torgos 31: 74-88 (In Hebrew, with an English summary in Torgos 31:92-94).
  10. Sapir N. 2003. Summary of reports from the ISRABIRDNET – mailing list for birding in Israel, between 1999 to 2001. Torgos 30: 72-88 (In Hebrew, with an English summary in Torgos 30:90).
  11. Sapir, N. 2001. Stopover of autumn migrating passerines in a heterogeneous habitat: Factors affecting habitat use. Proceedings of the 37-th meeting of the Zoological Society of Israel, in Israel Journal of Zoology 47:192-193.
  12. Sapir, N. 2001. Diet, aggression and aggregation patterns in a stopover passerines community during the autumn migration.  Proceedings of the 38-th Animal Behavior Society meeting, Oregon State University, USA.
  13. Schulman, Y., Sapir, N., Perlman, Y. and G. Perlman. 2001. Ring size manual for bird ringing in Israel. Israel Ornithological Center of the Society for the Protection of Nature in Israel, Tel-Aviv. 34 pages.
  14. Sapir, N. 2000. Do fruit density and foliage density affect the abundance of stopover autumn migrants in Atlantic Pistachio groves?Proceedings of the 36-th meeting of the Zoological Society of Israel, in Israel Journal of Zoology 46:171-172.
  15. Sapir, N. 2000. The establishment of introduced bird species in Israel: Up to date report of the phenomenon and possible actions. Ecology and Environment 6:130-131 (in Hebrew).

About us

We are a group of scientists devoted to the study of animal flight, including animal movement ecology, behavior, physiology and biomechanics. We study wild animals in the field and in the lab using a diversity of research approaches. We welcome applications for M.Sc. and Ph.D. studies and post-doctoral work in our group at the Department of Evolutionary and Environmental Biology at the University of Haifa.