PDFs available on Research Gate or Google Scholar

2024

  • Cronin, M. R., Beltran, R. S., & Zavaleta, E. S. (2024). Beyond reporting: proactive strategies for safer scientific fieldwork. Trends in Ecology & Evolution. https://doi.org/10.1016/j.tree.2024.01.003
  • Beltran, R. S., Lozano, R. R., Morris, P. A., Robinson, P. W., Holser, R. R., Keates, T. R., Favilla, A.B., Kilpatrick, A.M., & Costa, D. P. (2024). Individual variation in life-history timing: synchronous presence, asynchronous events and phenological compensation in a wild mammal. Proceedings of the Royal Society B. https://doi.org/10.1098/rspb.2023.2335
  • Cronin, M. R., Zavaleta, E. S., Beltran, R. S., Esparza, M., Payne, A. R., Termini, V., Thomphson, J., & Jones, M. S. (2024). Testing the effectiveness of interactive training on sexual harassment and assault in field science. Scientific reports. https://doi.org/10.1038/s41598-023-49203-0
  • Jouma’a, J., Orgeret, F., Picard, B., Robinson, P. W., Weimerskirch, H., Guinet, C., Costa, D.P. & Beltran, R. S. (2024). Contrasting offspring dependence periods and diving development rates in two closely related marine mammal species. Royal Society Open Science. https://doi.org/10.1098/rsos.230666

2023

  • Abdel-Raheem, S. T., Payne, A. R., Rivera, M. G., Sturdivant, S. K., Walker, N. S., Márquez, M. C., Ornelas, A., Turner, M., Byers, K., & Beltran, R. S. (2023). Oceanography’s Diversity Deficit: Identifying and Addressing Challenges for Marginalized Groups. Oceanography. https://www.jstor.org/stable/27278250
  • AN Cramer, JA Hoey, TE Dolan, R Gratins, J Toy, J Chancellor, EP Palkovacs, JC Garza, RS Beltran. A unifying framework for understanding ecological & evolutionary population connectivity. Frontiers in Ecology and Evolution. https://www.frontiersin.org/articles/10.3389/fevo.2023.1072825/
  • JM Kendall-Bar, TM Williams, R Mukherji, DA Lozano, JK Pitman, RR Holser, T Keates RS Beltran, PW Robinson, DE Crocker, T Adachi, T, OI Lyamin, AL Vyssotski DP Costa. Brain activity of diving seals reveals short sleep cycles at depth. Science. https://www.science.org/doi/10.1126/science.adf0566
  • RS Beltran*, KM Hernandez* (*contributed equally), R Condit, PW Robinson, DE Crocker, C Goetsch, AM Kilpatrick, DP Costa. Physiological tipping points in the relationship between foraging success and lifetime fitness of a long-lived mammal. Ecology Letters. https://doi.org/10.1111/ele.14193

2022

  • M Czapanskiy and RS Beltran. How reproducibility will accelerate discovery through collaboration in physio-logging. Frontiers in Physiology (Rising Stars in Physio-Logging). https://doi.org/10.3389/fphys.2022.917976
  • JM Kendall-Bar, R Mukherji, J Nichols, C Lopez, DA Lozano, JK Pitman, RR Holser, RS Beltran, M Schalles, CL Field, SP Johnson, AL Vyssotski, TM Williams, DP Costa. Eavesdropping on the brain at sea: the development of a surface-mounted brain monitoring device to detect weak electrophysiological signals from wild animals. Animal Biotelemetry. https://doi.org/10.1186/s40317-022-00287-x
  • RS Beltran, AL Yuen, R Condit, PW Robinson, MF Czapanskiy, DE Crocker, DP Costa. Elephant seals time their long-distance migration using a map sense. Current Biology. 32, R141–R157 https://doi.org/10.1016/j.cub.2022.01.031

2021

  • R Condit, RS Beltran, PW Robinson, DP Costa. Birth timing after the long feeding migration in elephant seals. Marine Mammal Science. http://doi.org/10.1111/mms.12896
  • JM Kendall-Bar, N Kendall-Bar, AG Forbes, G McDonald, PJ Ponganis, C Williams, M Horning, A Hindle, H Klinck, RS Beltran, AS Friedlaender, D Wiley, DP Costa, TM Williams. Visualizing life in the deep: a creative pipeline for data-driven animations to facilitate marine mammal research, outreach, and conservation. IEEE. DOI 10.1109/VISAP52981.2021.00007
  • I Shukla, AM Kilpatrick, RS Beltran. Variation in resting strategies across trophic levels and habitats in mammals. Ecology and Evolution. DOI: 10.1002/ece3.8073
  • KA Keen, RS Beltran, E Pirotta, DP Costa. Emerging themes in Population Consequences of Disturbance models. Proceedings of the Royal Society B. https://doi.org/10.1098/rspb.2021.0325
  • QM Patterson, S Kraberger, DP Martin, MR Shero, RS Beltran, AL Kirkham, M Aleamotu’a, DG Ainley, S Kim, JM Burns, A Varsani. Circoviruses and cycloviruses identified in Weddell seal fecal samples from McMurdo Sound, Antarctica. Infection, Genetics and Evolution. https://doi.org/10.1016/j.meegid.2021.105070
  • MR Cronin (26 authors including RS Beltran). Perspective: Anti-racist interventions to transform ecology, evolution and conservation biology departments. Nature Ecology and Evolution. https://doi.org/10.1038/s41559-021-01522-z
  • L DeKock, C Oosthuzien, RS Beltran, NP DeBruyn. Determinants of the moult phenology and duration of southern elephant seals (Mirounga leonina) at Marion Island. Scientific Reports. 11.1 (2021): 1-13. https://doi.org/10.1038/s41598-021-93678-8
  • A Race, RS Beltran, E Zavaleta. How an early, inclusive field course builds persistence in ecology and evolutionary biology. Integrative and Comparative Biology. icab121. https://doi.org/10.1093/icb/icab121
  • T Adachi, A Takahashi, DP Costa, PW Robinson, LA Huckstadt, SH Peterson, RR Holser, RS Beltran, TR Keates, Y Naito. Forced into an ecological corner: round-the-clock deep-foraging on small prey by elephant seals. Science Advances. DOI: 10.1126/sciadv.abg3628
  • SA Wood, PW Robinson, DP Costa, RS Beltran. Accuracy and precision of citizen scientist animal counts from drone imagery. PLOS ONE.
  • RS Beltran, JM Kendall-Bar, E Pirotta, T Adachi, Y Naito, A Takahashi, J Cremers, PW Robinson, DE Crocker, DP Costa. Lightscapes of fear: how mesopredators balance starvation and predation in the open ocean. Science Advances. 
  • RS Beltran, AM Kilpatrick, GA Breed, T Adachi, A Takahashi, Y Naito, PW Robinson, WO Smith Jr., AL Kirkham, JM Burns. Seasonal resource pulses and the foraging depth of a Southern Ocean top predator. Proceedings of the Royal Society B.
  • AI Race, M De Jesus, RS Beltran, ES Zavaleta. A comparative study between outcomes of an in-person versus online introductory field course. Ecology and Evolution

2020

  • ES Zavaleta, RS Beltran, AL Borker. How field courses propel inclusion and collective excellence. Trends in Ecology and Evolution.
  • DC Alvarado, PW Robinson, NC Frasson, DP Costa, RS Beltran. Calibration of aerial photogrammetry to estimate elephant seal mass. Marine Mammal Science.
  • RS Beltran, E Marnocha, A Race, D Croll, G Dayton, E Zavaleta. Field courses narrow demographic achievement gaps in ecology and evolutionary biology. Ecology and Evolution. 10(12).

2019

  • RS Beltran, AL Kirkham, GA Breed, JW Testa, JM Burns. Reproductive success influences moult phenology in Weddell seals. Scientific Reports. 9,5221.
  • G Frankfurter, RS Beltran, M Hoard, JM Burns. Rapid prototyping and 3D printing of Antarctic seal flipper tags. The Wildlife Society Bulletin. WSB964.

2018

  • RS Beltran, JM Burns, GA Breed. Review: Convergence of biannual moulting strategies across birds and mammals. Proceedings of the Royal Society of London B. 20180318.​
  • Z Smeele, JM Burns, K Van Doorsaler, S Kraberger, RS Fontenele, K Waits, D Stainton, MR Shero, RS Beltran, AL Kirkham, G Frankfurter, R Berngartt, P Lefeurve, A Varsani. Diverse papillomaviruses identified in Weddell seals. General Virology.
  • RS Beltran, B Ruscher-Hill (undergrad), AL Kirkham, JM Burns. An evaluation of three-dimensional photogrammetric and morphometric techniques for estimating volume and mass in Weddell seals. PLOS ONE.

2017

  • E Fahsbender, JM Burns, S Kim, S Kraberger, G Frankfurter, A Eilers, MR Shero, RS Beltran, AL Kirkham, R McCorkell, R Berngartt, M Male, K Rosario, G Ballard, DG Ainley, M Breitbart, A Varsani. Diverse and highly recombinant alleloviruses associated with Weddell seals in Antarctica. Journal of Virus Evolution. 3,1-11.
  • RS Beltran, JW Testa, JM Burns. An agent-based model for predicting impacts of environmental change on a top marine predator, the Weddell seal. Ecological Modelling. 351,36-50.

2016

  • N Lubcker, R Condit, RS Beltran, PJN de Bruyn, MN Bester. Vibrissal growth parameters of southern elephant seals: obtaining fine-scale, time-based stable isotope data. Marine Ecology Progress Series. 559,243-255.
  • RS Beltran, SH Peterson, EA McHuron, C Reichmuth, LA Huckstadt, DP Costa. Pinnipeds are what they eat, plus what? Determination of trophic discrimination factors in six seal species. Rapid Communications in Mass Spectrometry. 30, 1115–1122.

2015

  • L Schwarz, S Villegas-Amtmann, RS Beltran, DP Costa, C Goetsch, LA Huckstadt, J Maresh, SH Peterson. Comparisons and uncertainty in fat and adipose tissue estimation techniques: The Northern Elephant Seal as a Case Study. PLOS ONE. 
  • RS Beltran, MS Connolly, SH Peterson, R Condit, C Reichmuth, DP Costa. Whisker growth dynamics: a validated approach for assigning timescales to stable isotope analyses. Marine Ecology Progress Series. 523, 233-241.

2014

  • M Connolly, RS Beltran and C Reichmuth. A calibration procedure for measuring pinniped vibrissae using photogrammetry. Aquatic Mammals. 40(2), 213-218.
  • ​RS Beltran, N Kreidler* (undergrad), D Van Vuren, S Morrison, E Zavaleta, K Newton, B Tershy D Croll. Passive recovery of vegetation from herbivore eradication on Santa Cruz Island, California. Restoration Ecology. 22(6), 790-797. Cover photo.