Search Results - "Sherley, R B"

An overview of the impacts of fishing on seabirds, including identifying future research directions by Votier, S C, Sherley, R B, Scales, K L, Camphuysen, K, Phillips, R A

“…Abstract Knowledge of fisheries impacts, past and present, is essential for understanding the ecology and conservation of seabirds, but in a rapidly changing…”
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The initial journey of an Endangered penguin: implications for seabird conservation by RB Sherley, K Ludynia, T Lamont, JP Roux, RJM Crawford, LG Underhill

“…Seabirds can disperse widely in search of prey, especially during non-breeding periods. Conservation measures predominately focus on protecting breeding…”
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Processes influencing the population dynamics and conservation of African penguins on Dyer Island, South Africa by Ludynia, K, Waller, LJ, Sherley, RB, Abadi, F, Galada, Y, Geldenhuys, D, Crawford, RJM, Shannon, LJ, Jarre, A

“…Dyer Island, South Africa, supported the largest African penguin Spheniscus demersus colony in 1979 (22 655 breeding pairs), but population dynamics of the…”
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African Penguins and Localized Fisheries Management: Response to Butterworth and Ross-Gillespie by Sydeman, W J, Hunt, G L, Pikitch, E K, Parrish, J K, Piatt, J F, Boersma, P D, Kaufman, L, Anderson, D W, Thompson, S A, Sherley, R B

“…Abstract We present a response to Butterworth and Ross-Gillespie's (2022) comment on our perspectives on how forage fish fisheries are impacting the endangered…”
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Investigating differences in population recovery rates of two sympatrically nesting sea turtle species by Omeyer, L. C. M., Stokes, K. L., Beton, D., Çiçek, B. A., Davey, S., Fuller, W. J., Godley, B. J., Sherley, R. B., Snape, R. T. E., Broderick, A. C.

“…Estimating life‐history traits and understanding their variation underpins the management of long‐lived, migratory animals, while knowledge of recovery…”
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Body condition as a quantitative tool to guide hand‐rearing decisions in an endangered seabird by Morten, J. M., Parsons, N. J., Schwitzer, C., Holderied, M. W., Sherley, R. B.

“…The use of wildlife rehabilitation for conservation is growing, but quantitative criteria are rarely used to guide whether and when to remove animals from the…”
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Tangled and drowned: a global review of penguin bycatch in fisheries by Crawford, R, Ellenberg, U, Frere, E, Hagen, C, Baird, K, Brewin, P, Crofts, S, Glass, J, Mattern, T, Pompert, J, Ross, K, Kemper, J, Ludynia, K, Sherley, RB, Steinfurth, A, Suazo, CG, Yorio, P, Tamini, L, Mangel, JC, Bugoni, L, Jiménez Uzcátegui, G, Simeone, A, Luna-Jorquera, G, Gandini, P, Woehler, EJ, Pütz, K, Dann, P, Chiaradia, A, Small, C

“…Penguins are the most threatened group of seabirds after albatrosses. Although penguins are regularly captured in fishing gear, the threat to penguins as a…”
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Survival estimates for the greater crested tern Thalasseus bergii in southern Africa by Payo-Payo, A, Sanz-Aguilar, A, Gaglio, D, Sherley, RB, Cook, TR, Altwegg, R, Ryan, PG

“…The nominate race of the greater crested tern Thalasseus bergii breeds only along the coast of the Benguela region (west coast) of southern Africa, where its…”
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Geographical and temporal variation in the diet of Bank Cormorants Phalacrocorax neglectus in South Africa by Dyer, BM, Cooper, J, Crawford, RJM, Sherley, RB, Somhlaba, S, Cockcroft, A, Upfold, L, Makhado, AB

“…The Bank Cormorant Phalacrocorax neglectus is endemic to the Benguela upwelling ecosystem off southwest Africa and is classified as Endangered owing to a…”
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Hemispheric asymmetry in ocean change and the productivity of ecosystem sentinels by Sydeman, W. J., Schoeman, D. S., Thompson, S. A., Hoover, B. A., García-Reyes, M., Daunt, F., Agnew, P., Anker-Nilssen, T., Barbraud, C., Barrett, R., Becker, P. H., Bell, E., Boersma, P. D., Bouwhuis, S., Cannell, B., Crawford, R. J. M., Dann, P., Delord, K., Elliott, G., Erikstad, K. E., Flint, E., Furness, R. W., Harris, M. P., Hatch, S., Hilwig, K., Hinke, J. T., Jahncke, J., Mills, J. A., Reiertsen, T. K., Renner, H., Sherley, R. B., Surman, C., Taylor, G., Thayer, J. A., Trathan, P. N., Velarde, E., Walker, K., Wanless, S., Warzybok, P., Watanuki, Y.

“…Sampling seabirds The vastness of the worlds' oceans makes them difficult to monitor. Seabirds that forage and breed across oceans globally have been…”
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Decades of artificial nests towards African penguin conservation—Have they made a difference? by Pichegru, L., Sherley, R. B., Malan, T., Barham, B. J., Ludynia, K., Geldenhuys, D., Amos, K., Barham, P. J., Drost, E., Hahndiek, V., Hufke, A., Hugo, C., Lawrence, C., McGeorge, C., McInnes, A. M., Makhado, A. M., Mashau, M., Milne, R., Purves, A., Slier, M., van der Merwe, C., van Wilgen, N. J., Waller, L.

“…Abstract African penguins are among the most threatened seabird species globally and an African Penguin Biodiversity Management Plan (BMP) published in 2013…”
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Sex differences in migration and demography of a wide-ranging seabird, the northern gannet by Deakin, Zoe, Hamer, Keith C., Sherley, Richard B., Bearhop, Stuart, Bodey, Thomas W., Clark, Bethany L., Grecian, W. James, Gummery, Matt, Lane, Jude, Morgan, Greg, Morgan, Lisa, Phillips, Richard A., Wakefield, Ewan D., Votier, Stephen C.

“…Marine vertebrates show a diversity of migration strategies, including sex differences. This may lead to differential demography, but the consequences of such…”
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Influence of local and regional prey availability on breeding performance of African penguins Spheniscus demersus by Sherley, Richard B., Underhill, Les G., Barham, Barbara J., Barham, Peter J., Coetzee, Janet C., Crawford, Robert J. M., Dyer, Bruce M., Leshoro, T. Mario, Upfold, Leshia

“…Population trends of African penguins Spheniscus demersus in the Western Cape, South Africa, and their breeding success have been linked to the abundance of…”
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Interactions between snakes and seabirds on Robben, Schaapen and Meeuw Islands, Western Cape province, South Africa by Underhill, Les G, Sherley, Richard B, Dyer, Bruce M, Crawford, Robert JM

“…Encounters between seabirds and snakes are known from the literature both for South Africa (e.g. Dyer 1996, Calf 2004) and from further afield (e.g. Oro 1997,…”
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