Welcome to e-obs GmbH!

We are an innovative company based in Germany. We are specialized in engineering and the production of high-end GPS telemetry products to study animal movement and behaviour.

Our special focus are lightweight GPS-tags combining high data rates and remote data download capabilities. Our goal is to enable biologists to observe animals in the wild using electronic means in order to gain valuable and detailed behavioural information.

Our products enable researchers to analyse small scale movement (e.g. bird using thermic updrafts) and distinguish distinct behaviors (e.g. bird in active flight vs. gliding vs. resting on ground / fox sleeping vs. walking vs. running).

e-obs offers bird tags as well as mammal collars in numerous shapes and sizes for a variety of study approaches.

Please get in touch with us to learn more...(contact us).

Research Highlights

SCIENCE COVER 2015-06-19

Ariana Strandburg-Peshkin, Damien R. Farine, Iain D. Couzin, Margaret C. Crofoot Shared decision-making drives collective movement in wild baboons, SCIENCE, 19 June 2015, Vol. 348 no. 6241 pp. 1358-1361, DOI: 10.1126/science.aaa5099


Cover BIOLOGY LETTERS October 2016; volume 12, issue 10: Gyps himalayensis (Himalayan vulture). Taking on its wings equipped with e-obs tag being released at Pelela (3200m), Bhutan. (Picture courtesy Siddhartha Goswami.)

Sherub S, Bohrer G, Wikelski M, Weinzierl R., Behavioural adaptations to flight into thin air, Biology Letters, 20160432. http://dx.doi.org/10.1098/rsbl.2016.0432

Papers in 2017

Torres LG, Orben RA, Tolkova I, Thompson DR (2017), Classification of Animal Movement Behavior through Residence in Space and Time, PLoS ONE, 12(1): e0168513. doi:10.1371/journal.pone.0168513.

A. Strandburg-Peshkin, D. R. Farine, M.C. Crofoot & I. D. Couzin (2017), Habitat and social factors shape individual decisions and emergent group structure during baboon collective movement, eLIFE, January 31, 2017, doi: 10.7554/eLife.19505

Rotics et al. (2017), Wintering in Europe instead of Africa enhances juvenile survival in a long-distance migrant, Animal Behaviour, Volume 126, April 2017, Pages 79-88 http://dx.doi.org/10.1016/j.anbehav.2017.01.016

Stark DJ, Vaughan IP, Ramirez Saldivar DA, Nathan SKSS, Goossens B, Evaluating methods for estimating home ranges using GPS collars: A comparison using proboscis monkeys (Nasalis larvatus), PLoS ONE , 12(3): e0174891. (2017) doi:10.1371/journal.pone.0174891

Papers in 2016


A. Flack, W. Fiedler, J. Blas, I. Pokrovsky, M. Kaatz, M. Mitropolsky, K. Aghababyan, I. Fakriadis, E. Makrigianni, L. Jerzak, H. Azafzaf, C. Feltrup-Azafzaf, S. Rotics, T. M. Mokotjomela, R. Nathan, M. Wikelski, Costs of migratory decisions: A comparison across eight white stork populations, Sci. Adv. 2, e1500931 (2016).

Nawang Norbu, Ugyen, Martin C. Wikelski and David S. Wilcove, Partial altitudinal migration of the Near Threatened satyr tragopan Tragopan satyra in the Bhutan Himalayas: implications for conservation in mountainous environments, Oryx, available on CJO2016. doi:10.1017/S0030605315000757

Daniel Bengtsson, Kamran Safi, Alexis Avril, Wolfgang Fiedler, Martin Wikelski, Gunnar Gunnarsson, Johan Elmberg, Conny Tolf, Björn Olsen, Jonas Waldenström, Does influenza A virus infection affect movement behaviour during stopover in its wild reservoir host?, R. Soc. open sci, 2016 3 150633; DOI: 10.1098/rsos.150633

Pius Korner, Annette Sauter, Wolfgang Fielder & Lukas Jenni, Variable allocation of activity to daylight and night in the mallard, Animal Behaviour, 115 (2016) 69-79, DOI:10.1016/j.anbehav.2016.02.026

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 Nathan, R., The challenges of the first migration: movement and behavior of juvenile versus adult white storks with insights regarding juvenile mortality, J Anim Ecol., 2016, Accepted Author Manuscript. doi:10.1111/1365-2656.12525

Gabriel E Machovsky-Capuskaab, David Priddelc, Philip HW Leongd, Peter Jonesd, Nicholas Carlilec, Lesley Shannone, Dean Portellic, Alistair McEwand, Alexandre V Chavesf & David Raubenheimera, Coupling bio-logging with nutritional geometry to reveal novel insights into the foraging behaviour of a plunge-diving marine predator, New Zealand Journal of Marine and Freshwater Research, 2016, DOI:10.1080/00288330.2016.1152981

Roi Harel, Nir Horvitz & Ran Nathan, Adult vultures outperform juveniles in challenging thermal soaring condition, nature, Scientific Reports 6, Article number: 27865 (2016) doi:10.1038/srep27865

Bart A. Nolet, Andrea Kölzsch, Michiel Elderenbosch & Arie J. van Noordwijk, Scaring waterfowl as a management tool: how muchmore do geese forage after disturbance, Journal of Applied Ecology, 11 June 2016, DOI: 10.1111/1365-2664.12698

Andrea Kölzsch, Gerhard J. D. M. Müskens, Helmut Kruckenberg, Peter Glazov, Rolf Weinzierl, Bart A. Nolet and Martin Wikelski, Towards a new understanding of migration timing: slower spring than autumn migration in geese reflects different decision rules for stopover use and departure, OIKOS, 25 FEB 2016 DOI: 10.1111/oik.03121

K. David Hyrenbach, Michelle M. Hester, Robert W. Henry, Cynthia Vanderlip, Josh Adams, Matthew Saunter, Naomi Worcester, Management area and longline fishery effort overlap of breeding Black-footed Albatross, A TRACKING STUDY FROM KURE ATOLL, HAWAII

H. Weimerskirch, C. Bishop, T. Jeanniard-du-Dot, A. Prudor & G. Sachs, Frigate birds track atmospheric conditions over months-long transoceanic flights, Science, 01 Jul 2016: Vol. 353, Issue 6294, pp. 74-78, DOI: 10.1126/science.aaf4374

A. Soriano-Redondo, S. Bearhop, I. R. Cleasby, L. Lock, S. C. Votier & G. M. Hilton, Ecological Responses to Extreme Flooding Events: A Case Study with a Reintroduced Bird, nature, Scientific Reports 6, Article number: 28595 (2016), doi:10.1038/srep28595

Roi Harel, Olivier Duriez, Orr Spiegel, Julie Fluhr, Nir Horvitz, Wayne M. Getz, Willem Bouten, François Sarrazin, Ohad Hatzofe, Ran Nathan, Decision-making by a soaring bird: time, energy and risk considerations at different spatio-temporal scales, Phil. Trans. R. Soc, 2016, DOI: 10.1098/rstb.2015.0397

Guillaume Péron, Chris H. Fleming, Rogerio C. de Paula and Justin M. Calabrese, Uncovering periodic patterns of space use in animal tracking data with periodograms, including a new algorithm for the Lomb-Scargle periodogram and improved randomization tests, Movement Ecology, 2016, 4:19, DOI: 10.1186/s40462-016-0084-7

Garthe, S., Markones, N. & Corman, A. J , Possible impacts of offshore wind farms on seabirds: a pilot study in Northern Gannets in the southern North Sea, Ornithol, 2016, doi:10.1007/s10336-016-1402-y

Sherub S, Bohrer G, Wikelski M, Weinzierl R., Behavioural adaptations to flight into thin air, Biology Letters, 20160432. http://dx.doi.org/10.1098/rsbl.2016.0432

Weinzierl, R., Bohrer, G., Kranstauber, B., Fiedler, W., Wikelski, M. and Flack, A., Wind estimation based on thermal soaring of birds, Ecology and Evolution, 00: 1-13. doi: 10.1002/ece3.2585

Friedemann, G. et al., Multidimensional differentiation in foraging resource use during breeding of two sympatric top predators, Sci. Rep., 6, 35031; doi: 10.1038/srep35031 (2016).

Pascual López-López, Clara García-Ripollés, José Giménez, and Vicente Urios, A Case of Predation of a Eurasian Eagle-Owl by a Bonelli's Eagle, Journal of Raptor Research, 50(4):422-424. 2016 doi: http://dx.doi.org/10.3356/JRR-16-26.1


Scharf AK, LaPoint S, Wikelski M, Safi K, Acceleration Data Reveal Highly Individually Structured Energetic Landscapes in Free-Ranging Fishers (Pekania pennanti), PLoS ONE, 11(2): e0145732. DOI:10.1371/journal.pone.0145732

Meaghan N. Evans, Sergio Guerrero-Sanchez, Mohd Soffian Abu Bakar, Peter Kille, Benoit Goossens, First known satellite collaring of a viverrid species: preliminary performance and implications of GPS tracking Malay civets(Viverra tangalunga), Ecological Research, 2016, 10(10) DOI 10.1007/s11284-016-1338-y

Springer A, Mellmann A, Fichtel C, Kappeler PM, Social structure and Escherichia coli sharing in a group-living wild primate, Verreaux's sifaka, BMC Ecology, 2016;16:6. doi:10.1186/s12898-016-0059-y

Martijn J.A. Weterings, Marco Zaccaronib, Nikki van der Koorec, Linda M. Zijlstrac, Henry J. Kuipersc, Frank van Langeveldea, Sipke E. van Wierena, Strong reactive movement response of the medium-sized European hare to elevated predation risk in short vegetation, Animal Behaviour, 2016, Volume 115, May 2016, Pages 107-114, doi:10.1016/j.anbehav.2016.03.011

McLean, Kevin A., Trainor, Anne M., Asner, Gregory P., Crofoot, Margaret C., Hopkins, Mariah E., Campbell, Christina J., Martin, Roberta E., Knapp, David E. and Jansen, Patrick A., Movement patterns of three arboreal primates in a Neotropical moist forest explained by LiDAR-estimated canopy structure, Landscape Ecology, 2016, Pages 1-14, 1572-9761, doi.org/10.1007/s10980-016-0367-9

Michael Abedi-Lartey, Dina K.N. Dechmann, Martin Wikelski, Anne K. Scharf, Jakob Fahr, Long-distance seed dispersal by straw-coloured fruitbats varies by season and landscape, Global Ecology and Conservation, Volume 7, July 2016, Pages 12-24, doi:10.1016/j.gecco.2016.03.005

Isbell, Lynne A., and Laura R. Bidner, Vervet monkey (Chlorocebus pygerythrus) alarm calls to leopards (Panthera pardus) function as a predator deterrent, Behaviour, 2016, Volume 153, Issue 5, pages 591 - 606, doi: 10.1163/1568539X-00003365

Crofoot Farine, Ariana Strandburg-Peshkin, Tanya Berger-Wolf, Brian Ziebart, Ivan Brugere, Jia Li & Margaret C. Crofoot, Both Nearest Neighbours and Longterm Affiliates Predict Individual Locations During Collective Movement in Wild Baboons, nature, Scientific Reports 6, Article number: 27704 (2016), doi:10.1038/srep27704

Flávia Koch, Johannes Signer, Peter M. Kappeler & Claudia Fichtel, The role of the residence-effect on the outcome of intergroup encounters in Verreaux's sifakas, nature, Scientific Reports 6, Article number: 28457 (2016), doi:10.1038/srep28457

Saskia Jeroscha, Malte Götz, Mechthild Roth, Spatial organisation of European wildcats (Felis silvestris silvestris) in an agriculturally dominated landscape in Central Europe, Mammalian Biology, Volume 82, January 2017, Pages 8-16

Exotic Species

Guillaume Bastille-Rousseau, Jonathan Potts, Charles B. Yackulic, Jacqueline L. Frair, Hance Ellington, and Stephen Blake, Flexible characterization of animal movement pattern using net squared displacement and a latent state model, Movement Ecology, 2016, 4:15, doi: 10.1186/s40462-016-0080-y

Sheldon JD, Stacy NI, Blake S, Cabrera F, Deem SL., COMPARISON OF TOTAL LEUKOCYTE QUANTIFICATION METHODS IN FREE-LIVING GALAPAGOS TORTOISES (CHELONOIDIS SPP.), J Zoo Wildl Med., 2016, 47(1):196-205, doi: 10.1638/2015-0159.1.

Guillaume Bastille-Rousseau, James P. Gibbs, Charles B. Yackulic, Jacqueline L. Frair, Fredy Cabrera, Louis-Philippe Rousseau, Martin Wikelski, Franz Kümmeth, Stephen Blake, Animal movement in the absence of predation: environmental drivers of movement strategies in a partial migration system, OIKOS, 22 November 2016, DOI: 10.1111/oik.03928.