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2. Front Cover

Author

Frugone, María José, primary, Cole, Theresa L., additional, López, María Eugenia, additional, Clucas, Gemma, additional, Matos‐Maraví, Pável, additional, Lois, Nicolás A., additional, Pistorius, Pierre, additional, Bonadonna, Francesco, additional, Trathan, Phil, additional, Polanowski, Andrea, additional, Wienecke, Barbara, additional, Raya‐Rey, Andrea, additional, Pütz, Klemens, additional, Steinfurth, Antje, additional, Bi, Ke, additional, Wang‐Claypool, Cynthia Y., additional, Waters, Jonathan M., additional, Bowie, Rauri C. K., additional, Poulin, Elie, additional, and Vianna, Juliana A., additional

Published
2021
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3. Taxonomy based on limited genomic markers may underestimate species diversity of rockhopper penguins and threaten their conservation

Author

Frugone, María José, primary, Cole, Theresa L., additional, López, María Eugenia, additional, Clucas, Gemma, additional, Matos‐Maraví, Pável, additional, Lois, Nicolás A., additional, Pistorius, Pierre, additional, Bonadonna, Francesco, additional, Trathan, Phil, additional, Polanowski, Andrea, additional, Wienecke, Barbara, additional, Raya‐Rey, Andrea, additional, Pütz, Klemens, additional, Steinfurth, Antje, additional, Bi, Ke, additional, Wang‐Claypool, Cynthia Y., additional, Waters, Jonathan M., additional, Bowie, Rauri C. K., additional, Poulin, Elie, additional, and Vianna, Juliana A., additional

Published
2021
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4. Taxonomy based on limited genomic markers may underestimate species diversity of rockhopper penguins and threaten their conservation

Author

Frugone, María José, Cole, Theresa L., López, María Eugenia, Clucas, Gemma, Matos‐Maraví, Pável, Lois, Nicolás A., Pistorius, Pierre, Bonadonna, Francesco, Trathan, Phil, Polanowski, Andrea, Wienecke, Barbara, Raya‐Rey, Andrea, Pütz, Klemens, Steinfurth, Antje, Bi, Ke, Wang‐Claypool, Cynthia Y., Waters, Jonathan M., Bowie, Rauri C.K., Poulin, Elie, Vianna, Juliana A., Blakeslee, April, Frugone, María José, Cole, Theresa L., López, María Eugenia, Clucas, Gemma, Matos‐Maraví, Pável, Lois, Nicolás A., Pistorius, Pierre, Bonadonna, Francesco, Trathan, Phil, Polanowski, Andrea, Wienecke, Barbara, Raya‐Rey, Andrea, Pütz, Klemens, Steinfurth, Antje, Bi, Ke, Wang‐Claypool, Cynthia Y., Waters, Jonathan M., Bowie, Rauri C.K., Poulin, Elie, Vianna, Juliana A., and Blakeslee, April

Abstract

Delimiting recently diverged species is challenging. During speciation, genetic differentiation may be distributed unevenly across the genome, as different genomic regions can be subject to different selective pressures and evolutionary histories. Reliance on limited numbers of genetic markers that may be underpowered can make species delimitation even more challenging, potentially resulting in taxonomic inconsistencies. Rockhopper penguins of the genus Eudyptes comprise three broadly recognized taxa: northern (E. moseleyi), southern (E. chrysocome) and eastern rockhopper (E. filholi). Their taxonomic status has been controversial for decades, with researchers disagreeing about whether E. chrysocome and E. filholi are distinct species or conspecific. Our goal is to evaluate genome-wide patterns of divergence to evaluate genetic differentiation and species delimitation in rockhopper penguins, and to assess which mechanisms may underlie previous discordance among nuclear versus mitochondrial analyses.

Published
2021

5. Changes in prey fields increase the potential for spatial overlap between gentoo penguins and a krill fishery within a marine protected area

Author

Ratcliffe, Norman, Deagle, Bruce, Love, Kieran, Polanowski, Andrea, Fielding, Sophie, Wood, Andrew G., Hill, Simeon, Grant, Susie, Belchier, Mark, Fleming, Andrew, Hall, Jonathan, Ratcliffe, Norman, Deagle, Bruce, Love, Kieran, Polanowski, Andrea, Fielding, Sophie, Wood, Andrew G., Hill, Simeon, Grant, Susie, Belchier, Mark, Fleming, Andrew, and Hall, Jonathan

Abstract

AIM: Management of competition with predators is an important consideration for fisheries, particularly within marine protected areas (MPAs) where conservation is a primary objective. We aimed to test whether static no-take zones within a large, sustainable-use MPA prevented overlap between gentoo penguins and a krill fishery during two winters with contrasting prey fields. LOCATION: South Georgia, Southwest Atlantic Ocean. METHOD: We used satellite tracking (N = 16, June–September 2018) to describe gentoo penguin movements and distribution and quantified their overlap with the MPA’s no-take zone (NTZ) and the krill fishing grounds. DNA metabarcoding of scats (N = 220, April–September 2018) was used to quantify diet. RESULTS: When krill were at moderate densities and evenly distributed in 2001, gentoo penguins would have spent all of their time within the 12 NM NTZ, but when availability was low in 2018, they spent 46.3% of their time outside the NTZ and 9.6% within the krill fishing grounds. The extension of the NTZ to 30 km in response to this finding would have produced a 14.9% increase in protection for penguins and displaced 4% of fishery hauls. Gentoo penguin diet comprised 25.8% krill, which is lower than in the late 1980s but more than in 2009. MAIN CONCLUSIONS: Gentoo penguins extend their foraging range when krill is scarce, which increases the potential for spatial overlap with the krill fishery during periods of nutritional stress. Current regulations allow for expansion of both extent and catches by the krill fishery and, should this occur, gentoo penguins may face heightened risks from competition. A dynamic ocean management framework, that extends closed areas in response to near real-time data on penguin movements and krill density estimates, may reduce the potential for competition in this sustainable use MPA while allowing a profitable krill fishery.

Published
2021

7. Changes in prey fields increase the potential for spatial overlap between gentoo penguins and a krill fishery within a marine protected area

Author

Ratcliffe, Norman, primary, Deagle, Bruce, additional, Love, Kieran, additional, Polanowski, Andrea, additional, Fielding, Sophie, additional, Wood, Andrew G., additional, Hill, Simeon, additional, Grant, Susie, additional, Belchier, Mark, additional, Fleming, Andrew, additional, and Hall, Jonathan, additional

Published
2021
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9. Cryptic speciation in gentoo penguins is driven by geographic isolation and regional marine conditions: Unforeseen vulnerabilities to global change

Author

Pertierra, Luis R., primary, Segovia, Nicolás I., additional, Noll, Daly, additional, Martinez, Pablo A., additional, Pliscoff, Patricio, additional, Barbosa, Andrés, additional, Aragón, Pedro, additional, Raya Rey, Andrea, additional, Pistorius, Pierre, additional, Trathan, Phil, additional, Polanowski, Andrea, additional, Bonadonna, Francesco, additional, Le Bohec, Céline, additional, Bi, Ke, additional, Wang‐Claypool, Cynthia Y., additional, González‐Acuña, Daniel, additional, Dantas, Gisele P. M., additional, Bowie, Rauri C. K., additional, Poulin, Elie, additional, and Vianna, Juliana A., additional

Published
2020
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10. Cryptic speciation in gentoo penguins is driven by geographic isolation and regional marine conditions: Unforeseen vulnerabilities to global change

Author

Pertierra, Luis R., Segovia, Nicolás I., Noll, Daly, Martinez, Pablo A., Pliscoff, Patricio, Barbosa, Andrés, Aragón, Pedro, Raya Rey, Andrea, Pistorius, Pierre, Trathan, Phil, Polanowski, Andrea, Bonadonna, Francesco, Le Bohec, Céline, Bi, Ke, Wang‐Claypool, Cynthia Y., González‐Acuña, Daniel, Dantas, Gisele P. M., Bowie, Rauri C. K., Poulin, Elie, Vianna, Juliana A., Pertierra, Luis R., Segovia, Nicolás I., Noll, Daly, Martinez, Pablo A., Pliscoff, Patricio, Barbosa, Andrés, Aragón, Pedro, Raya Rey, Andrea, Pistorius, Pierre, Trathan, Phil, Polanowski, Andrea, Bonadonna, Francesco, Le Bohec, Céline, Bi, Ke, Wang‐Claypool, Cynthia Y., González‐Acuña, Daniel, Dantas, Gisele P. M., Bowie, Rauri C. K., Poulin, Elie, and Vianna, Juliana A.

Abstract

The conservation of biodiversity is hampered by data deficiencies, with many new species and subspecies awaiting description or reclassification. Population genomics and ecological niche modelling offer complementary new tools for un-covering functional units of phylogenetic diversity. We hypothesize that phyloge-netically delineated lineages of gentoo penguins (Pygoscelis papua) distributed across Antarctica and sub-Antarctic Islands are subject to spatially explicit ecological con-ditions that have limited gene flow, facilitating genetic differentiation, and thereby speciation processes.

Published
2020

16. Low levels of genetic differentiation characterize Australian humpback whale (Megaptera novaeangliae) populations

Author

Schmitt, Natalie T., primary, Double, Michael C., additional, Jarman, Simon N., additional, Gales, Nick, additional, Marthick, James R., additional, Polanowski, Andrea M., additional, Scott Baker, C., additional, Steel, Debbie, additional, Jenner, K. Curt S., additional, Jenner, Micheline-N. M., additional, Gales, Rosemary, additional, Paton, David, additional, and Peakall, Rod, additional

Published
2013
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