Search Results - "Bester, M. N."

Vagrant sub-Antarctic fur seal at tropical Ascension Island, South Atlantic Ocean by Bester, M. N.

“…Knowledge of extra-limital movements of seals improves our understanding of species’ dispersal and dispersion abilities and patterns, and perhaps environmental…”
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Status of pinnipeds on mid-Atlantic ridge islands, South Atlantic Ocean by Bester, M. N.

“…The status of pinnipeds on mid-Atlantic ridge islands is reviewed to detect trends that may relate to climate change. Small numbers of southern elephant seals…”
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Increase of sub-Antarctic fur seals at the Tristan da Cunha Islands by Bester, M. N., Wege, M., Glass, T.

“…Sub-Antarctic fur seal, Arctocephalus tropicalis , pups were counted on some of the beaches on all four Tristan da Cunha (TdC) islands, in January 2017, to…”
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Sub-Antarctic fur seals depredate northern rockhopper penguins at Nightingale Island, Tristan da Cunha by Bester, M. N., Dilley, B. J., Davies, D., Glass, T.

“…The most plausible hypothesis for declining population trends of some marine top predators at the northern extent of their breeding ranges in the Southern…”
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Dispersion of a southern elephant seal Mirounga leonina to Possession Island, Namibia by Bester, M. N., Hofmeyr, G. J. G., Bartlett, P. A.

“…Whilst southern elephant seals Mirounga leonina inhabit the Southern Ocean, hauling out on sub-Antarctic islands, individuals are frequently encountered…”
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Stalked barnacles on an adult male sub-Antarctic fur seal at Inaccessible Island, Tristan da Cunha by Bester, M. N., Ryan, P. G.

“…An adult male sub-Antarctic fur seal, Arctocephalus tropicalis , on Inaccessible Island in the Tristan da Cunha archipelago (TdC), was observed infested with…”
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Early pupping of a sub-Antarctic fur seal at Inaccessible Island, Tristan da Cunha by Bester, M. N., Ryan, P. G.

“…A sub-Antarctic fur seal, Arctocephalus tropicalis , pup was located on Inaccessible Island in the Tristan da Cunha archipelago (TdC), well before the start of…”
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Fish prey of sub-Antarctic fur seals Arctocephalus tropicalis at the Tristan da Cunha Islands, South Atlantic Ocean by Bester, M. N., Stansfield, L. J., Glass, T., de Bruyn, P. J. N.

“…Some top predator populations in the South Atlantic and South Indian oceans are in decline, presumably contingent upon reduced food availability, precipitated…”
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Cape fur seals (Arctocephalus pusillus pusillus) adjust traversing behaviour with lunar conditions in the high white shark (Carcharodon carcharias) density waters of Mossel Bay, South Africa by Morse, P., Mole, M. A., Bester, M. N., Johnson, R., Scacco, U., Gennari, E.

“…White sharks Carcharodon carcharias are highly visual predators, leading to the hypothesis that the predation risk for foraging Cape fur seals Arctocephalus…”
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Cross-seasonal foraging site fidelity of subantarctic fur seals: implications for marine conservation areas by Wege, M., Tosh, C. A., de Bruyn, P. J. N., Bester, M. N.

“…Marine top predators show fidelity to foraging areas with predictable high-quality food patches. Areas of predictable prey yield are of conservation…”
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lifetime at depth: vertical distribution of southern elephant seals in the water column by McIntyre, T, de Bruyn, P. J. N, Ansorge, I. J, Bester, M. N, Bornemann, H, Plötz, J, Tosh, C. A

“…Although numerous studies have addressed the migration and dive behaviour of southern elephant seals (Mirounga leonina), questions remain about their habitat…”
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Cryptorchidism in the sub-Antarctic fur seal Arctocephalus tropicalis by Bester, M. N.

“…The prevalence of cryptorchidism, a condition when one or more testes failed to move to their proper position(s), was evaluated for sub-Antarctic fur seals…”
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Sex at sea: alternative mating system in an extremely polygynous mammal by de Bruyn, P.J.N., Tosh, C.A., Bester, M.N., Cameron, E.Z., McIntyre, T., Wilkinson, I.S.

“…Polygyny is a widespread and evolutionarily significant mating system in vertebrates. The southern elephant seal, Mirounga leonina, has often been cited as…”
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Vagrant leopard seal at Tristan da Cunha Island, South Atlantic by Bester, M. N., Bester, W. A., Wege, M., Schofield, R. A., Glass, T. A.

“…Leopard seals Hydrurga leptonyx breed in the Antarctic pack ice, but individuals may wander farther north. Only two records exist from Gough Island (40°S,…”
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Hydrographic influences on the summer dive behaviour of Weddell seals (Leptonychotes weddellii) in Atka Bay, Antarctica by McIntyre, T., Stansfield, L. J., Bornemann, H., Plötz, J., Bester, M. N.

“…In order to gain insights into species-level behavioural responses to the physical environment, it is necessary to obtain information from various populations…”
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Vagrant Antarctic fur seals at the Tristan da Cunha Islands by Bester, M. N., Ryan, P. G., Bester, W. A., Glass, T.

“…Antarctic fur seals Arctocephalus gazella mainly breed at islands south of the Antarctic Polar Front, but stragglers occasionally occur farther north, with…”
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The diet of the subantarctic fur seal Arctocephalus tropicalis at Marion Island by Makhado, A. B., Bester, M. N., Somhlaba, S., Crawford, R. J. M.

“…Scats of subantarctic fur seals Arctocephalus tropicalis at Marion Island were collected from 1996 to 2,000, to examine temporal variability in the diet,…”
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Cephalopod diet of juvenile male southern elephant seals Mirounga leonina at Marion Island, South Indian Ocean by Bester, M. N., Connan, M.

“…Southern elephant seals Mirounga leonina have a circumpolar distribution and migrate across broad geographic regions. Therefore, they can provide important…”
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First confirmed record of a leucistic Antarctic fur seal pup born outside the Scotia Arc Islands by Wege, M., Postma, M., Tosh, C. A., de Bruyn, P. J. N., Bester, M. N.

“…A leucistic Antarctic fur seal ( Arctocephalus gazella ) pup was born on subantarctic Marion Island during the austral summer of 2010/2011. This is the first…”
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Abundance and degree of residency of humpback dolphins Sousa plumbea in Mossel Bay, South Africa by James, BS, Bester, MN, Penry, GS, Gennari, E, Elwen, SH

“…Indian Ocean humpback dolphins Sousa plumbea inhabit nearshore waters from South Africa to eastern India. Humpback dolphins are vulnerable to conservation…”
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