USAP-DC

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The consequences of maternal effects and environmental conditions on offspring success in an Antarctic predator Short Title: Maternal effects in Weddell seals Start Date: 2017-08-01 End Date: 2022-07-31 Project Website(s) Weddell Seal Population Dynamics in Erebus Bay, Antarctica Description/Abstract The Erebus Bay population of Weddell seals in the Ross Sea of Antarctica is the most southerly breeding population of mammal in the world, closely associated with persistent shore-fast ice, and one that has been intensively studied since 1969. The resulting long-term database, which includes data for over 25,000 marked individuals, contains detailed population information that provides an excellent opportunity to study linkages between environmental conditions and demographic processes in the Antarctic. The study population is of special interest as the Ross Sea is one of the most productive areas of the Southern Ocean and one of the most pristine marine environments on the planet. The study provides long-term demographic data for individual seals Personnel Person Role Rotella, Jay Investigator and contact Garrott, Robert Co-Investigator Funding Antarctic Organisms and Ecosystems Award # 1640481 AMD - DIF Record(s) USAP-1640481_1 Data Management Plan DataManagementPlan.pdf Product Level: 0 (raw data) Datasets Repository Title (link) Format(s) Status USAP-DC Demographic data for Weddell Seal colonies in Erebus Bay through the 2017 Antarctic field season None exists USAP-DC Demographic data for Weddell Seal colonies in Erebus Bay through the 2023 Antarctic field season Adobe Portable Document Format (PDF); Microsoft Access Database 2007 exists Publications Brusa, J. L., Rotella, J. J., Garrott, R. A., Paterson, J. T., & Link, W. A. (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(1), 134–150. (doi:10.1002/1438-390x.12036) Paterson, J. T., Rotella, J. J., Link, W. A., & Garrott, R. (2018). Variation in the vital rates of an Antarctic marine predator: the role of individual heterogeneity. Ecology, 99(10), 2385–2396. (doi:10.1002/ecy.2481) Miller, J. M., Campbell, E. O., Rotella, J. J., Macdonald, K. R., Gelatt, T. S., & Davis, C. S. (2021). Evaluation of novel genomic markers for pedigree construction in an isolated population of Weddell Seals (Leptonychotes weddellii) at White Island, Antarctica. Conservation Genetics Resources. (doi:10.1007/s12686-021-01237-0) 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. Portico. (doi:10.1111/1365-2656.13870) Powell, J., Kalinowski, S., Taper, M., Rotella, J., Davis, C., & Garrott, R. (2023). Evidence of an Absence of Inbreeding Depression in a Wild Population of Weddell Seals (Leptonychotes weddellii). Entropy, 25(3), 403. (doi:10.3390/e25030403) Anderson, A. K., Levinson, P. M., Conklin, A., & Rotella, J. J. (2024). Observations of Weddell seal (Leptonychotes weddellii) supernumerary nipples. Polar Biology. (doi:10.1007/s00300-024-03228-x) Keywords Amd/Us ANIMAL ECOLOGY AND BEHAVIOR Ross Sea Platforms and Instruments FIELD INVESTIGATION