Search Results - "Oosthuizen, W"

Return customers: foraging site fidelity and the effect of environmental variability in wide-ranging antarctic fur seals by Arthur, Benjamin, Hindell, Mark, Bester, Marthan, Trathan, Phil, Jonsen, Ian, Staniland, Iain, Oosthuizen, W Chris, Wege, Mia, Lea, Mary-Anne

“…Strategies employed by wide-ranging foraging animals involve consideration of habitat quality and predictability and should maximise net energy gain. Fidelity…”
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Abundance of Indo-Pacific bottlenose dolphins (Tursiops aduncus) along the south coast of South Africa by Vargas-Fonseca, O. Alejandra, Kirkman, Stephen P, Oosthuizen, W. Chris, Bouveroux, Thibaut, Cockcroft, Vic, Conry, Danielle S, Pistorius, Pierre A

“…Coastally distributed dolphin species are vulnerable to a variety of anthropogenic pressures, yet a lack of abundance data often prevents data-driven…”
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Determinants of moult haulout phenology and duration in southern elephant seals by de Kock, Leandri, Oosthuizen, W. Chris, Beltran, Roxanne S., Bester, Marthán N., de Bruyn, P. J. Nico

“…Phenological shifts are among the most obvious biological responses to environmental change, yet documented responses for Southern Ocean marine mammals are…”
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Positive early-late life-history trait correlations in elephant seals by Oosthuizen, W. Chris, Péron, Guillaume, Pradel, Roger, Bester, Marthán N., de Bruyn, P. J. Nico

“…Correlations between early- and late-life performance are a major prediction of life-history theory. Negative early–late correlations can emerge because…”
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Comment on Krüger, L. Decreasing Trends of Chinstrap Penguin Breeding Colonies in a Region of Major and Ongoing Rapid Environmental Changes Suggest Population Level Vulnerability. Diversity 2023, 15, 327 by Oosthuizen, W. Chris, Christian, Murray, Ngwenya, Mzabalazo

“…Historical data on chinstrap penguin (Pygoscelis antarctica) breeding population sizes are sparse and sometimes highly uncertain, making it hard to estimate…”
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Unmanned aerial vehicle (UAV) survey of the Antarctic shag (Leucocarbo bransfieldensis) breeding colony at Harmony Point, Nelson Island, South Shetland Islands by Oosthuizen, W. Chris, Krüger, Lucas, Jouanneau, William, Lowther, Andrew D.

“…Monitored seabird populations—useful sentinels of marine ecosystem health—have been declining worldwide at a rapid pace. Yet, lack of reliable long-term…”
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Publisher Correction: Determinants of moult haulout phenology and duration in southern elephant seals by de Kock, Leandri, Oosthuizen, W. Chris, Beltran, Roxanne S., Bester, Marthán N., de Bruyn, P. J. Nico

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Reproductive phenology is a repeatable, heritable trait linked to the timing of other life-history events in a migratory marine predator by Oosthuizen, W C, Pistorius, P A, Bester, M N, Altwegg, R, de Bruyn, P J N

“…Population-level shifts in reproductive phenology in response to environmental change are common, but whether individual-level responses are modified by…”
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Phenotypic selection and covariation in the life‐history traits of elephant seals: heavier offspring gain a double selective advantage by Oosthuizen, W. Chris, Altwegg, Res, Nevoux, Marie, Bester, M. N., de Bruyn, P. J. Nico

“…Early developmental conditions contribute to individual heterogeneity of both phenotypic traits and fitness components, ultimately affecting population…”
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Identifying prey capture events of a free-ranging marine predator using bio-logger data and deep learning by Schoombie, Stefan, Jeantet, Lorène, Chimienti, Marianna, Sutton, Grace J, Pistorius, Pierre A, Dufourq, Emmanuel, Lowther, Andrew D, Oosthuizen, W Chris

“…Marine predators are integral to the functioning of marine ecosystems, and their consumption requirements should be integrated into ecosystem-based management…”
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Robustly estimating the demographic contribution of immigration: Simulation, sensitivity analysis and seals by Christian, Murray, Oosthuizen, W. Chris, Bester, Marthán N., Bruyn, P. J. Nico

“…Identifying important demographic drivers of population dynamics is fundamental for understanding life‐history evolution and implementing effective…”
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Ross seal distribution in the Weddell Sea: fact and fallacy by Bester, Marthán N., Wege, Mia, Oosthuizen, W. Chris, Bornemann, Horst

“…The presence of Ross seals ( Ommatophoca rossii ) throughout the Weddell Sea is at best equivocal although overview articles usually depict this as fact on…”
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Selective disappearance of frail juveniles: consequences for understanding social dominance in adult male elephant seals by Lloyd, Kyle J., Oosthuizen, W. Chris, Fay, Rémi, Bester, Marthán N., Nico de Bruyn, P. J.

“…Individual heterogeneity is variation in trait expression observed among individuals of a population. Individual heterogeneity in the pre‐breeder stage of…”
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Satellite tagging and biopsy sampling of killer whales at subantarctic Marion Island: effectiveness, immediate reactions and long-term responses by Reisinger, Ryan R, Oosthuizen, W Chris, Péron, Guillaume, Cory Toussaint, Dawn, Andrews, Russel D, de Bruyn, P J Nico

“…Remote tissue biopsy sampling and satellite tagging are becoming widely used in large marine vertebrate studies because they allow the collection of a diverse…”
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Trade‐offs between age‐related breeding improvement and survival senescence in highly polygynous elephant seals: Dominant males always do better by Lloyd, Kyle J., Oosthuizen, W. Chris, Bester, Marthán N., Bruyn, P. J. Nico, Koons, Dave

“…Life‐history trade‐off theory predicts that current reproduction can negatively affect survival and future reproduction. Few studies have assessed breeding…”
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Correction: Return Customers: Foraging Site Fidelity and the Effect of Environmental Variability in Wide-Ranging Antarctic Fur Seals by Arthur, Benjamin, Hindell, Mark, Bester, Marthan, Trathan, Phil, Jonsen, Ian, Staniland, Iain, Oosthuizen, W Chris, Wege, Mia, Lea, Mary-Anne

“…[This corrects the article DOI: 10.1371/journal.pone.0120888.]…”
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Tracking the foraging migrations of Marion Island southern elephant seals (Mirounga leonina) during their first year of life by McIntyre, Trevor, Oosthuizen, W. Chris, Bester, Marthán N., Hindell, Mark A., Reisinger, Ryan R., Tosh, Cheryl A., Hoff, John, Bruyn, P.J. Nico

“…The first year of life is critical for large mammals to acquire foraging and predator avoidance skills. Southern elephant seal (Mirounga leonina) pups wean at…”
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South for the winter? Within-dive foraging effort reveals the trade-offs between divergent foraging strategies in a free-ranging predator by Arthur, Benjamin, Hindell, Mark, Bester, Marthan N., Oosthuizen, W. Chris, Wege, Mia, Lea, Mary-Anne

“…Summary Central to an animal's fitness is its foraging strategy and understanding the choices made by foraging animals is a fundamental aim in animal ecology…”
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The foraging behavior of nonbreeding Adélie penguins in the western Antarctic Peninsula during the breeding season by Oosthuizen, W. Chris, Pistorius, Pierre A., Korczak‐Abshire, Malgorzata, Hinke, Jefferson T., Santos, Mercedes, Lowther, Andrew D.

“…Information on marine predator at‐sea distributions is key to understanding ecosystem and community dynamics and an important component of spatial management…”
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The effect of prey abundance and fisheries on the survival, reproduction, and social structure of killer whales (Orcinus orca) at subantarctic Marion Island by Jordaan, Rowan K., Oosthuizen, W. Chris, Reisinger, Ryan R., Bruyn, P. J. Nico

“…Most marine apex predators are keystone species that fundamentally influence their ecosystems through cascading top‐down processes. Reductions in worldwide…”
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