Publications By Our Research Team

Rotella, J.J. 2022. Patterns, sources, and consequences of variation in age-specific vital rates: Insights from a long-term study of Weddell seals. Journal of Animal Ecology - Accepted Author Manuscript. https://doi.org/10.1111/1365-2656.13870

Petch, S.M., J.J. Rotella, W.A. Link, J.T. Paterson, and R.A. Garrott. 2022.Investigating diverse sources of variation in the amount of time Weddell seal (Leptonychotes weddellii) pups spend in the water during the lactation period. Marine Mammal Science (Online Early View 1-16) https://doi.org/10.1111/mms.12955

Fay, R., Hamel, S., van de Pol, M., Gaillard, J.-M., Yoccoz, N.G., Acker, P., M. Authier, B. Larue, C. Le Coeur, K.R. Macdonald, A. Nicol-Harper, C. Barbraud, C. Bonenfant, D.H. Van Vuren, E. Cam, K.Delord, M. Gamelon, M. Moiron, F. Pelletier, J. Rotella, C. Teplitsky, M.E. Visser, C.P. Wells, N.T. Wheelwright, S. Jenouvrier, and B.-E. Sæther. 2022. Temporal correlations among demographic parameters are ubiquitous but highly variable across species. Ecology Letters 25:1640-1654.

Miller, J.M., E.O. Campbell, J.J. Rotella, K.R. Macdonald, T.S. Gelatt, and C.S. Davis. 2022. Evaluation of novel genomic markers for pedigree construction in an isolated population of Weddell Seals (Leptonychotes weddellii) at White Island, Antarctica. Conservation Genetics Resources 14:69-80.

Fay, R., M. Authier, S. Hamel, S. Jenouvrier, M. van de Pol, E. Cam, J.-M. Gaillard, N.G. Yoccoz, P. Acker, A. Allen, L.M. Aubry, C. Bonenfant, H. Caswell, C.F.D. Coste, B. Larue, C. Le Coeur, M. Gamelon, K.R. Macdonald, M. Moiron, A. Nicol-Harper, F. Pelletier, J.J. Rotella, C. Teplitsky, L. Touzot, C.P. Wells, and B.-E. Sæther. 2022. Quantifying fixed individual heterogeneity in demographic parameters: Performance of correlated random effects for Bernoulli variables. Methods in Ecology and Evolution 13:91-104.

LaRue, M., L. Salas, N. Nur, D. Ainley, S. Stammerjohn, J. Pennycook, M. Dozier, J. Saints, K. Stamatiou, L. Barrington, and J. Rotella. 2021. Insights from the first global population estimate of Weddell seals in Antarctica. Science Advances 7:eabh3674.

Brusa, J.L., J.J. Rotella, K.M. Banner, and P.R. Hutchins. 2021. Challenges and opportunities for comparative studies of survival rates: An example with male pinnipeds. Ecology and Evolution 11:7980–7999.
Brusa, J.L., J.J. Rotella, and R.A. Garrott. 2021. Influence of age and individual identity in the use of breeding colony habitat by male Weddell seals in Erebus Bay, Antarctica. Marine Mammal Science 37:1277-1291.

Ainley, D., P. Cziko, N. Nur, J. Rotella, J. Eastman, M. Larue, I. Stirling, and P. Abrams. 2021. Further evidence that Antarctic toothfish are important to Weddell seals. Antarctic Science 33:17-29.

Macdonald, K.R., J.J. Rotella, R.A. Garrott, and W.A. Link. 2020. Sources of variation in maternal allocation in a long-lived mammal. Journal of Animal Ecology 89:1927–1940.

Brusa, J.L., J.J. Rotella, R.A. Garrott, J.T. Paterson, and W.A. Link. 2019. Variation of annual apparent survival and detection rates with age, year and individual identity in male Weddell seals (Leptonychotes weddellii) from long-term mark-recapture data. Population Ecology 62:134–150.

Paterson, J.T., J.J. Rotella, W.A. Link, and R.A. Garrott. 2018. Variation in the vital rates of an Antarctic marine predator: the role of individual heterogeneity. Ecology 99:2385-2396.

Salas, L., N. Nur, D. Ainley, J. Burns, J. Rotella, and G. Ballard. 2017. Coping with the loss of large, energy-dense prey: A potential bottleneck for Weddell Seals in the Ross Sea. Ecological Applications 27: 10-25.

Paterson, J.T., J.J Rotella, J.M. Mannas, and R.A. Garrott. 2016. Patterns of age-related
change in reproductive effort differ in the prenatal and postnatal periods in a long-lived mammal. J. Animal Ecology 85:1540-1551.

Rotella, J.J., J.T. Paterson, and R.A. Garrott. 2016. Birth dates vary with fixed and dynamic maternal features, offspring sex, and extreme climatic events in a high-latitude marine mammal. Ecology & Evolution 6:1930-1941.

Paterson, J.T., J.J. Rotella, K.R. Arrigo, and R.A. Garrott. 2015. Tight coupling of primary production and marine mammal reproduction in the Southern Ocean. Proceedings of the Royal Society B: Biological Sciences 282: 20143137.

Chambert, T.C., J.J. Rotella, and R.A. Garrott. 2015. Female Weddell seals show flexible strategies of colony attendance related to varying environmental conditions. Ecology 96:479-488.

Stauffer, G.E., J.J. Rotella, R.A. Garrott, and W.L. Kendall. 2014. Environmental correlates of temporary emigration for female Weddell seals and consequences for recruitment. Ecology 95:2526-2536.

Chambert, T.C., J.J. Rotella, R.A. Garrott. 2014. An evolutionary perspective on reproductive individual heterogeneity in a marine vertebrate. Journal of Animal Ecology 84:1158-1168.

Chambert, T., J.J. Rotella, and M.D. Higgs. 2014. Use of posterior predictive checks as an inferential tool for investigating individual heterogeneity in animal population vital rates. Ecology & Evolution 4:1389-1397.

Chambert, T., J.J. Rotella, M.D. Higgs, and R.A. Garrott. 2013. Individual heterogeneity in reproductive rates and cost of reproduction in a long-lived vertebrate. Ecology and Evolution 3:2047-2060.

Stauffer, G.E., J.J. Rotella, and R.A. Garrott. 2013. Birth-year and current-year influences on survival and recruitment rates of female Weddell seals. Population Ecology 55:405-415.

Stauffer, G.E., J.J. Rotella, and R.A. Garrott. 2013. Variability in temporary emigration rates of individually marked female Weddell seals prior to first reproduction. Oecologia 172:129-140.

Chambert, T.C., J.J. Rotella, R.A. Garrott. 2012. Environmental extremes versus ecological extremes: Impact of a massive iceberg on the population dynamics of a high-level Antarctic marine predator. Proceedings of the Royal Society B: Biological Sciences 279:4532-4541.

Rotella, J.J., W.A. Link, T. Chambert, G.E. Stauffer, and R.A. Garrott. 2012. Evaluating the demographic buffering hypothesis with vital rates estimated for Weddell seals from 30 years of mark-recapture data. Journal of Animal Ecology 81:162-173.

Garrott, R.A., J.J. Rotella, D.B. Siniff, C.L. Parkinson, and G.E. Stauffer. 2012. Environmental variation and cohort effects in an Antarctic predator. Oikos 121:1027-1040.

LaRue, M.A., J.J. Rotella, R.A. Garrott, D.B. Siniff, D. Ainley, G.E. Stauffer, C.C. Porter, and P.J. Morin. 2011. Satellite imagery can be used to detect spatial and temporal variation in abundance of Weddell seals (Leptonychotes weddellii) in Erebus Bay, Antarctica. Polar Biology 34:1727-1737
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Proffitt, K.M., J.J. Rotella, and R.A. Garrott. 2010. Effects of pup age, maternal age, and birth date on pre-weaning survival of Weddell seals in Erebus Bay, Antarctica. Oikos 119:1255-1264.

Blight, L.K., D.G. Ainley, S.F. Ackley, G. Ballard, T. Ballerini, R.L. Brownell, C.H.C. Cheng, M. Chiantore, D. Costa, M.C. Coulter, P. Dayton, A.L. Devries, R. Dunbar, S. Earle, J.T. Eastman, S.D. Emslie, C.W. Evans, R.A. Garrott, S. Kim, G. Kooyman, A. Lescroel, M. Lizotte, M. Massaro, S. Olmastroni, P.J. Ponganis, J. Russell, D.B. Siniff, W.O. Smith, B.S. Stewart, I. Stirling, J. Willis, P. Wilson, and E.J. Woehler. 2010. Fishing for Data in the Ross Sea. Science 330:1316-1316.

Rotella, Jay J., William A. Link, James D. Nichols, Gillian L. Hadley, Robert A. Garrott, and Kelly M. Proffitt. 2009. An evaluation of density-dependent and -independent influences on population growth rates in Weddell seals. Ecology 90:975-984.

Ainley, D.G., and D.B. Siniff. 2009. The importance of Antarctic toothfish as prey of Weddell seals in the Ross Sea. Antarctic Science 21:317-327.

Proffitt, K.M., R.A. Garrott, and J.J. Rotella. 2008. Variation in offspring sex ratio among individual Weddell seal females of different quality. Behavioral Ecology and Sociobiology 62:1679-1687.

Proffitt, K.M., R.A. Garrott, and J.J. Rotella. 2008. Long-term evaluation of body mass at weaning and post-weaning survival rates of Weddell seals in Erebus Bay, Antarctica. Marine Mammal Science 24:677-689.

Rotella, J.J. 2008. Estimating reproductive costs with multi-state mark recapture models, multiple observable states, and temporary emigration. In: Thompson, D. L., E.G. Cooch, and M.J. Conroy. Editors. Modeling demographic processes in marked populations. Monograph Series in Environmental and Ecological Statistics, Vol. 3. Springer.

Hadley, G.L., J.J. Rotella, and R.A. Garrott. 2008. Spatial variation in age-specific probabilities of first reproduction for Weddell seals. Oikos 117:1165-1174.

Proffitt, K.M., R.A. Garrott, J.J. Rotella, and S. Lele. 2008. Using form analysis techniques to improve photogrammetric mass-estimation methods. Marine Mammal Science 24:147-158.

Siniff, D.B., R. A. Garrott, J.J. Rotella, W.R. Fraser, and D.G. Ainley. 2008. Projecting the effects of environmental change on Antarctic seals. Antarctic Science 20:425-435.

Proffitt, K.M., R.A. Garrott, J.J. Rotella, and K.E. Wheatley. 2007. Environmental and senescent related variations in Weddell seal body mass: implications for age-specific reproductive performance. Oikos 116:1683-1690.

Hadley, G.L., J.J. Rotella, and R.A. Garrott. 2007. Evaluation of reproductive costs for Weddell Seals in Erebus Bay, Antarctica. Journal of Animal Ecology 76:448-458.

Proffitt, K. M., R. A. Garrott, J. J. Rotella, D. B. Siniff, and J. W. Testa. 2007. Exploring linkages between abiotic oceanographic processes and a top-trophic predator in an Antarctic ecosystem. Ecosystems 10:119-126.

Hadley, G.L., J.J. Rotella, and R.A. Garrott. 2007. Influence of maternal characteristics and oceanographic conditions on survival and recruitment probabilities of Weddell seals. Oikos 116:601-613.

Proffitt, K. M., R. A. Garrott, J. J. Rotella, and J. Banfield. 2007. The importance of considering prediction variance in analyses using photogrammetric mass estimates. Marine Mammal Science 23:65-76.

Cameron, M.F., D.B. Siniff, K.M. Proffitt, and R.A. Garrott. 2007. Site fidelity of Weddell seals: the effects of sex and age. Antarctic Science 19:149–155.

Hadley, G.L., J.J. Rotella, R.A. Garrott, and J.D. Nichols. 2006. Variation in probability of first reproduction of Weddell seals. Journal of Animal Ecology 75:1058-1070.

Ireland, D., R. A. Garrott, J. J. Rotella, and J. Banfield. 2006. Development and application of a mass-estimation method for Weddell seals. Marine Mammal Science 22:361-378.

Rotella, J.J., and J.E. Hines. 2005. Effects of tag loss on direct estimates of population growth rate. Ecology 86:821-827.