Browsing Research Articles (Mammal Research Institute) by UP Author "De Bruyn, P.J. Nico"

Browsing Research Articles (Mammal Research Institute) by UP Author "De Bruyn, P.J. Nico"

Sort by: Order: Results:

  • Moura, Andre E.; Janse van Rensburg, Charlene; Pilot, Malgorzata; Tehrani, Arman; Best, Peter B.; Thornton, Meredith; Plön, Stephanie; De Bruyn, P.J. Nico; Worley, Kim C.; Gibbs, Richard A.; Dahlheim, Marilyn E.; Hoelzel, A. Rus (Oxford University Press, 2014-05)
    Ecosystem function and resilience is determined by the interactions and independent contributions of individual species. Apex predators play a disproportionately determinant role through their influence and dependence on ...
  • Oosthuizen, W.C. (Wessel Christiaan); Pradel, Roger; Bester, Marthan Nieuwoudt; De Bruyn, P.J. Nico (Wiley Open Access, 2019-01)
    Increased environmental stochasticity due to climate change will intensify temporal variance in the life‐history traits, and especially breeding probabilities, of long‐lived iteroparous species. These changes may decrease ...
  • Arthur, Benjamin; Hindell, Mark; Bester, Marthan Nieuwoudt; De Bruyn, P.J. Nico; Goebel, Michael E.; Trathan, Phil; Lea, Mary-Anne (Elsevier, 2018-08)
    To understand and predict current and future distributions of animals under a changing climate it is essential to establish historical ranges as baselines against which distribution shifts can be assessed. Management ...
  • Bester, Marthan Nieuwoudt; De Bruyn, P.J. Nico; Oosthuizen, W.C. (Wessel Christiaan); Tosh, Cheryl A.; McIntyre, Trevor; Reisinger, Ryan Rudolf; Postma, Martin; Van der Merwe, Derek S.; Wege, Mia (Taylor & Francis, 2011)
    The Marine Mammal Programme (MMP) conducts research on pinnipeds and killer whales Orcinus orca at Marion Island, Prince Edward Islands, under the auspices of the Mammal Research Institute, Department of Zoology and ...
  • Treasure, Anne; Roquet, Fabien; Ansorge, Isabelle J.; Bester, Marthan Nieuwoudt; Boehme, Lars; Bornemann, Horst; Charrassin, Jean-Benoit; Chevallier, Damien; Costa, Daniel P.; Fedak, Mike A.; Guinet, Christophe; Hammill, Mike O.; Harcourt, Robert G.; Hindell, Mark A.; Kovacs, Kit M.; Lea, Mary-Anne; Lovell, Phil; Lowther, Andrew D.; Lydersen, Christian; McIntyre, Trevor; McMahon, Clive R.; Muelbert, Monica M.C.; Nicholls, Keith; Picard, Baptiste; Reverdin, Gilles; Trites, Andrew W.; Williams, Guy D.; De Bruyn, P.J. Nico (Oceanography Society, 2017)
    Polar oceans are poorly monitored despite the important role they play in regulating Earth’s climate system. Marine mammals equipped with biologging devices are now being used to fill the data gaps in these logistically ...
  • Hofmeyr, G.J. Greg (Gordon John Gregory); Bester, Marthan Nieuwoudt; Pistorius, Pierre Anton; Mulaudzi, Tambu W.; De Bruyn, P.J. Nico; Ramunasi, Justice A.; Tshithabane, Hendrik N.; McIntyre, Trevor; Radzilani, Phathu M. (Southern African Wildlife Management Association, 2007)
    Modelling fur seal populations requires the accurate assessment of demographic parameters such as age-specific mortality. Owing to the highly variable mortality rates that pups are subject to, mortality of this age class ...
  • Reisinger, Ryan Rudolf; Keith, Mark; Andrews, Russel D.; De Bruyn, P.J. Nico (Elsevier, 2015-12)
    Eleven satellite tagswere deployed on 9 killerwhales at the Prince Edwards Islands in the Southern Ocean. Statespace switchingmodelswere used to generate position estimates fromArgos location data,while two behavioural modes ...
  • Tucker, Marlee A.; Böhning-Gaese, Katrin; Fagan, William F.; Fryxell, John M.; Van Moorter, Bram; Alberts, Susan C.; Ali, Abdullahi H.; Allen, Andrew M.; Attias, Nina; Avgar, Tal; Bartlam-Brooks, Hattie; Bayarbaatar, Buuveibaatar; Belant, Jerrold L.; Bertassoni, Alessandra; Beyer, Dean; Bidner, Laura; Van Beest, Floris M.; Blake, Stephen; Blaum, Niels; Bracis, Chloe; Brown, Danielle; De Bruyn, P.J. Nico; Cagnacci, Francesca; Calabrese, Justin M.; Camilo-Alves, Constança; Chamaillé-Jammes, Simon; Chiaradia, Andre; Davidson, Sarah C.; Dennis, Todd; DeStefano, Stephen; Diefenbach, Duane; Douglas-Hamilton, Iain; Fennessy, Julian; Fichtel, Claudia; Fiedler, Wolfgang; Fischer, Christina; Fischhoff, Ilya; Fleming, Christen H.; Ford, Adam; Fritz, Susanne; Gehr, Benedikt; Goheen, Jacob R.; Gurarie, Eliezer; Hebblewhite, Mark; Heurich, Marco; Hewison, A.J. Mark; Hof, Christian; Hurme, Edward; Isbell, Lynne A.; Janssen, René; Jeltsch, Florian; Kaczensky, Petra; Kane, Adam; Kappeler, Peter M.; Kauffman, Matthew; Kays, Roland; Kimuyu, Duncan; Koch, Flavia; Kranstauber, Bart; LaPoint, Scott; Leimgruber, Peter; Linnell, John D.C.; López-López, Pascual; Markham, A. Catherine; Mattisson, Jenny; Medici, Emilia Patricia; Mellone, Ugo; Merrill, Evelyn; De Miranda Mourão, Guilherme; Morato, Ronaldo G.; Morellet, Nicolas; Morrison, Thomas; Díaz-Muñoz, Samuel L.; Mysterud, Atle; Nandintsetseg, Dejid; Nathan, Ran; Niamir, Aidin; Odden, John; O'Hara, Robert B.; Oliveira-Santos, Luiz Gustavo R.; Olson, Kirk A.; Patterson, Bruce D.; De Paula, Rogerio Cunha; Pedrotti, Luca; Reineking, Björn; Rimmler, Martin; Rogers, Tracy L.; Rolandsen, Christer Moe; Rosenberry, Christopher S.; Rubenstein, Daniel I.; Safi, Kamran; Saïd, Sonia; Sapir, Nir; Sawyer, Hall; Schmidt, Niels Martin; Selva, Nuria; Sergiel, Agnieszka; Shiilegdamba, Enkhtuvshin; Silva, João Paulo; Singh, Navinder; Solberg, Erling J.; Spiegel, Orr; Strand, Olav; Sundaresan, Siva; Ullmann, Wiebke; Voigt, Ulrich; Wall, Jake; Wattles, David; Wikelski, Martin; Wilmers, Christopher C.; Wilson, John W.; Wittemyer, George; Ziȩba, Filip; Zwijacz-Kozica, Tomasz; Mueller, Thomas (American Association for the Advancement of Science, 2018-01)
    Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database ...
  • Nevoux, Marie; De Bruyn, P.J. Nico; Wege, Mia (Cambridge University Press, 2015-06)
    Observer-based studies often underestimate key ecological parameters. Here a fresh approach was used to analyse six years (2006–11) of attendance cycles to estimate foraging trip lengths of a lactating flipper-tagged ...
  • Haddad, William A.; Reisinger, Ryan Rudolf; Scott, Tristan; Bester, Marthan Nieuwoudt; De Bruyn, P.J. Nico (Springer, 2015-05)
    Sexual coercion is the use of force to achieve mating, while reproductive interference encompasses many forms of interspecific interactions during mating. We describe three new occurrences of the sexual coercion of king ...
  • Reisinger, Ryan R.; Landman, Marietjie; Mgibantaka, Nonkoliso; Smale, Malcolm J.; Bester, Marthan Nieuwoudt; De Bruyn, P.J. Nico; Pistorius, Pierre A. (Co-Action Publishing, 2018-04-20)
    Antarctic (Arctocephalus gazella) and Subantarctic (A. tropicalis) fur seals are important predators in the Southern Ocean. Marion Island (southern Indian Ocean) hosts the largest sympatric breeding populations of these ...
  • Oosthuizen, W.C. (Wessel Christiaan); Altwegg, Res; Nevoux, Marie; Bester, Marthan Nieuwoudt; De Bruyn, P.J. Nico (Wiley, 2018-06)
    Early developmental conditions contribute to individual heterogeneity of both phenotypic traits and fitness components, ultimately affecting population dynamics. Although the demographic consequences of ontogenic growth ...
  • Jepsen, Emma M.; De Bruyn, P.J. Nico (Elsevier, 2019-08)
    Oceanic plastic pollution is a growing worldwide environmental concern, endangering numerous marine species. Pinnipeds are particularly susceptible to entanglement, especially in abandoned, lost or discarded fishing gear ...
  • Pistorius, Pierre Anton; De Bruyn, P.J. Nico; Bester, Marthan Nieuwoudt (Taylor & Francis, 2011)
    Southern elephant seal Mirounga leonine numbers declined precipitously throughout most of their circumpolar distribution since the 1950s. A long-term intensive demographic programme was initiated in 1983 on the relatively ...
  • Moura, Andre E.; Kenny, John G.; Chaudhuri, Roy; Hughes, Margaret A.; Welch, Andreanna J.; Reisinger, Ryan Rudolf; De Bruyn, P.J. Nico; Dahlheim, Marilyn E.; Hall, Nathalie; Hoelzel, A. Rus (Wiley, 2014)
    The evolution of diversity in the marine ecosystem is poorly understood, given the relatively high potential for connectivity, especially for highly mobile species such as whales and dolphins. The killer whale (Orcinus ...
  • Lowther, Andrew D.; Lydersen, Christian; Biuw, Martin; De Bruyn, P.J. Nico; Hofmeyr, G.J. Greg (Gordon John Gregory); Kovacs, Kit M. (Cambridge University Press, 2014)
    At-sea behaviour of central-place foraging fur seals and penguins in the Southern Ocean is understudied during the latter stages of parental care and the subsequent pre-moulting period. This biologically important period ...
  • Reisinger, Ryan Rudolf; De Bruyn, P.J. Nico; Bester, Marthan Nieuwoudt (Wiley-Blackwell, 2011-09)
    Killer whales are the oceans’ apex predators and their potential effects on ecosystems have been demonstrated. In the Southern Ocean the role of killer whale predation in population declines of southern elephant seals ...
  • Wege, Mia; De Bruyn, P.J. Nico; Hindell, Mark A.; Lea, Mary‑Anne; Bester, Marthan Nieuwoudt (BioMed Central, 2019-09-11)
    BACKGROUND : To understand and predict the distribution of foragers, it is crucial to identify the factors that affect individual movement decisions at different scales. Individuals are expected to adjust their foraging ...
  • De Bruyn, P.J. Nico; Cameron, Elissa Z.; Tosh, Cheryl A.; Oosthuizen, W.C. (Wessel Christiaan); Reisinger, Ryan Rudolf; Mufanadzo, N. Thomas; Phalanndwa, Mashudu V.; Postma, Martin; Wege, Mia; Van der Merwe, Derek S.; Bester, Marthan Nieuwoudt (Elsevier, 2010-01)
    Non-offspring maternal care should be rare due to the high costs of raising offspring, particularly lactation, but nonetheless occurs in a variety of taxa. Misguided parental care, associated with recognition errors and/or ...
  • Reisinger, Ryan Rudolf; De Bruyn, P.J. Nico; Tosh, Cheryl A.; Oosthuizen, W.C. (Wessel Christiaan); Mufanadzo, N. Thomas; Bester, Marthan Nieuwoudt (Taylor & Francis, 2011)
    The diet of killer whales Orcinus orca was investigated from 48 predation events observed during 823 sightings at sub-Antarctic Marion Island between 2006 and 2009. From these events, there were 10 cases where prey could ...