Publications
Population declines and changes in community composition at the world’s largest penguin colony
Ratcliffe, N., J. Dickens, G. Clucas, K. Pütz, N. Fenney, E. Mackley, T. Hart, L. Cugniere, C. Colesie, N. Richter, M. Belchier, A. Skachkova, H. Lynch, P. Convey and P. Fretwell. 2026. Population declines and changes in community composition at the world’s largest penguin colony. In press at Current Biology.
Winter sea ice decline drives Gentoo penguin population expansion along the Western Antarctic Peninsula
Wethington, M., and H.J. Lynch. 2026. Winter sea ice decline drives Gentoo penguin population expansion along the Western Antarctic Peninsula. Marine Ecology Progress Series 787: meps15149.
Structured monitoring enhances regional trend and abundance estimates for Pygoscelis penguins around the Antarctic Peninsula
Flynn, C.M, and H.J. Lynch. 2026. Structured monitoring enhances regional trend and abundance estimates for Pygoscelis penguins around the Antarctic Peninsula. In press at Antarctic Science.
Predicting pack-ice seal occupancy of ice floes along the Western Antarctic Peninsula
Wethington, M.J., B. Sen, and H.J. Lynch. 2024. Predicting pack-ice seal occupancy of ice floes along the Western Antarctic Peninsula. PLoS ONE 19(12): e0311747.
Advances and shortfalls in knowledge of Antarctic terrestrial and freshwater biodiversity
Pertierra, L.R., P. Convey, A. Barbosa, E. M. Biersma, D. Cowan, J. A. F. Diniz-Filho, A. de los Ríos, P. Escribano-Álvarez, C. I. Fraser, D. Fontaneto, M. Greve, H. J. Griffiths, M. Harris, K. A. Hughes, H. J. Lynch, R. J. Ladle, X. P. Liu, P. C. le Roux, R. Majewska, M. A. Molina-Montenegro, L. S. Peck, A. Quesada, C. Ronquillo, Y. Ropert-Coudert, L. G. Sancho, A. Terauds, G. Varliero, J. A. Vianna, A. Wilmotte, S. L. Chown, M. Á. Olalla-Tárraga, and J. Hortal. 2025. Frozen but lively: ecological research advances and key knowledge gaps in terrestrial and freshwater Antarctic biodiversity science. Science 387: 609-615.
The influence of biotic and abiotic factors on the bacterial microbiome of gentoo penguins (Pygoscelis papua) in their natural environment
Kaczvinsky, C., H. Levy, S. Preston, C. Youngflesh, G. Clucas, H.J. Lynch, A.L. Smith, and T. Hart. The influence of biotic and abiotic factors on the bacterial microbiome of gentoo penguins (Pygoscelis papua) in their natural environment. 2024. Scientific Reports 14:17933.
Update on the abundance and distribution of Macaroni penguins (Eudyptes chrysolophus) in the Antarctic Peninsula region
Hallet, M., and H.J. Lynch. 2024. Update on the abundance and distribution of Macaroni Penguins (Eudyptes chrysolophus) in the Antarctic Peninsula region. Polar Biology 47: 607-615.
Quantifying krill connectivity across the west Antarctic Peninsula and its role in large-scale Pygoscelis penguin population dynamics
Gallagher, K., M. Dinniman, and H.J. Lynch. 2023. Quantifying Antarctic krill connectivity across the West Antarctic Peninsula and its role in large-scale Pygoscelis penguin population dynamics. Scientific Reports 13: 12072.
TerrANTALife 1.0: Biodiversity data checklist of known Antarctic terrestrial and freshwater lifeforms
Pertierra, L.R., G. Varliero, A. Barbosa, E.M. Biersma, P. Convey, S.L. Chown, D. Cowan, A. De los Rios, P. Escribano-Alvarez, D. Fontaneto, C.I. Fraser, M. Harris, K.A. Hughes, H.J. Griffiths, P.C. le Roux, X.P. Liu, H.J. Lynch, P.A. Martinez, M.A. Molina-Montenegro, M.A. Olalla-Tarraga, L. Peck, A. Quesada, Y. Ropert-Coudert, L. Sancho, A. Terauds, J.A. Vianna, A. Wilmotte, J. Hortal, and M. Greve. 2024. ANTALIFE 1.0 Biodiversity data checklist of all Antarctic terrestrial and freshwater life forms in the continent. Biodiversity Data Journal 12: e106199.
Whole genome sequencing reveals stepping stone dispersal buffered against founder effects in a range expanding seabird
Herman, R.W., G. Clucas, J. Younger, J. Bates, B. Robinson, S. Reddy, J. Stepanuk, K. O’Brien, K. Veeramah, and H.J. Lynch. 2024. Whole genome sequencing reveals stepping stone dispersal buffered against founder effects in a range expanding seabird. Molecular Ecology 00:e17282.
Species classification of Antarctic pack-ice seals using very-high-resolution satellite imagery
Wethington, M.J., B.C. Goncalves, E. Talis, and H.J. Lynch. 2023. Species classification of Antarctic pack-ice seals using very-high-resolution satellite imagery. Marine Mammal Science 1-17.
Antarctic Penguin Biogeography Project
Che-Castaldo, C., G. Humphries, and H.J. Lynch. 2023. Antarctic Penguin Biogeography Project: Database of abundance and distribution for the Adélie, chinstrap, gentoo, emperor, macaroni, and king penguin south of 60 S. Biodiversity Data Journal 11: e101476.
Penguindex: A Living Planet Index for Pygoscelis Species Penguins
Talis, Emma, C. Che-Castaldo, T. Hart, L. McCrae, and H.J. Lynch. 2023. Penguindex: A biodiversity indicator for Pygoscelis spp. penguins identifies key eras of population change. Polar Biology, Online at https://doi.org/10.1007/s00300-023-03148-2
Adelie penguins north and east of the Adelie gap continue to thrive in the face of dramatic declines
Wethington, M., C. Flynn, A. Borowicz, and H.J. Lynch. 2023. Adélie penguins north and east of the ‘Adélie gap’ continue to thrive in the face of dramatic declines elsewhere in the Antarctic Peninsula region. Scientific Reports 13: 2525.
Ant-ICON ‘Integrated Science to Inform Antarctic and Southern Ocean Conservation’
Hughes, K.A., M. Santos, J. A. Caccavo, S. Chignell, N. Gardiner, N. Gilbert, A. Howkins, B. J. van Vuuren, J. R. Lee, D. Liggett, A. Lowther, H. Lynch, A. Quesada, H. Chul Shin, A. Soutullo, and A. Terauds. 2022. Ant-ICON ‘Integrated Science to Inform Antarctic and Southern Ocean Conservation’: a new SCAR research programme. Antarctic Science 34(6): 446-455.
Social Sensors for Wildlife: Ecological Opportunities in the Era of Camera Ubiquity
Borowicz, A., H.J. Lynch, T. Estro, C. Foley, B. Goncalves, K. Herman, S.K. Adamczak, and L. Thorne. 2021. Frontiers in Marine Science 8: 385.
The Role of Wind Fetch in Structuring Antarctic Seabird Breeding Occupancy
Schrimpf, M., and H.J. Lynch. 2021. Ibis 163(2): 695-705.
Fifty-Year Change in Penguin Abundance on Elephant Island, South Shetland Islands, Antarctica: Results of the 2019-20 Census
Strycker, N., A. Borowicz, M. Wethington, S. Forrest, V. Shah, Y. Liu, H. Singh, H. J. Lynch. 2021. Polar Biology 44(1): 1-12.
A Global Population Assessment of the Chinstrap Penguin (Pygoscelis antarctica)
Strycker, N., M. Wethington, A. Borowicz, S. Forrest, C. Witharana, T. Hart, H. J. Lynch. 2020. Scientific Reports 10: 19474.
Update on the Global Abundance and Distribution of Gentoo Penguins (Pygoscelis papua)
Herman, R., A. Borowicz, M. Lynch, P. Trathan, and H.J. Lynch. 2020. Polar Biology 43: 1947-1956.
Presence of King Penguins (Aptenodytes patagonicus) on Elephant Island Provides Further Evidence of Range Expansion
Borowicz, A., S. Forrest, N. Strycker, M. Wethington, H. J. Lynch. 2020. Polar Biology 43: 2117-2120.
Correcting for Within-Season Demographic Turnover to Estimate the Island-Wide Population of King Penguins (Aptenodytes patagonicus) on South Georgia
Foley, C.M., W.F. Fagan, and H.J. Lynch. 2020. Polar Biology 43: 251-262.
Regional Breeding Bird Assessment of the Antarctic Peninsula
Schrimpf, M., C. Che-Castaldo, and H.J. Lynch. 2020. Polar Biology 43, 111–122
Estimating the Pre-Exploitation Population Size of a Historically Harvested Marine Mammal
Foley, C.M. and H.J. Lynch. 2020. Conservation Biology 34(1): 256-265.
A Continent-Wide Search for Antarctic Petrel Breeding Sites With Satellite Remote Sensing
Schwaller, M.R., H.J. Lynch, A. Tarroux, and B. Prehn. 2018. Remote Sensing of Environment 210: 444-451.
Multi-Modal Survey of Adélie Penguin Mega-Colonies Reveals the Danger Islands as a Seabird Hotspot
Borowicz, A., P. McDowall, C. Youngflesh, T. Sayre-McCord, G. Clucas, R. Herman, S. Forrest, M. Rider, M. Schwaller, T. Hart, S. Jenouvrier, M.J. Polito, H. Singh, and H.J. Lynch. 2018. Scientific Reports 3926.
[#59 for Altmetric’s Top 100 Stories for 2018]
King Penguin Populations Increase on South Georgia But Explanations Remain Elusive
Foley, C.M., T. Hart, and H.J. Lynch. 2018. Polar Biology 41(6): 1111-1122.
Population Status of the Antarctic Shag (Phalacrocorax [atriceps] bransfieldensis)
Schrimpf, M., R. Naveen, and H.J. Lynch. 2018. Antarctic Science 30(3): 151-159.
Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data and Tools for Dynamic Management and Decision Support
Humphries G.R.W., C. Che-Castaldo, R. Naveen, M. Schwaller, P. McDowall, M Schrimpf, H.J. Lynch. 2017. Polar Record 53(2): 160-166.
In Stark Contrast to Widespread Declines Along the Scotia Arc, a Survey of the South Sandwich Islands Finds a Robust Seabird Community
Lynch, H.J., R. White, R. Naveen, A.D. Black, M.S. Meixler, and W.F. Fagan. 2016. Polar Biology 39: 1615-1625.
Population Structure and Phylogeography of the Gentoo Penguin (Pygoscelis papua) Across the Scotia Arc
Levy, H., G. Clucas, A. Rogers, A.D. Leaché, K. Ciborowski, M. Polito, H.J. Lynch, M. Dunn, and T. Hart. 2016. Ecology and Evolution 6(6): 1834-1853.
A Comprehensive Coastal Seabird Survey Maps Out the Front Lines of Ecological Change on the Western Antarctic Peninsula
Casanovas, P.V., R. Naveen, S. Forrest, J. Poncet, H.J. Lynch. 2015. Polar Biology 38:927-940.
Important Bird Areas in Antarctica Summary 2015
Harris, C.M., K. Lorenz, L.D.C. Fishpool, B. Lascelles, J. Cooper, N. Coria, J.P. Croxall, L.M. Emmerson, R. Fijn, P. Jouventin, M.A. LaRue, Y. Le Maho, H.J. Lynch, R. Naveen, S. Poncet, R.A. Phillips, C.J. Southwell, J.A. van Franeker, H. Weimerskirch, B. Wienecke, and E.J. Woehler. 2015. BirdLife International and Environmental Research & Assessment Ltd., Cambridge.
First Global Survey of Adélie Penguin Populations
Lynch, H.J., and M.A. LaRue. 2014. The Auk 131(4): 457-466.
Antarctic Site Inventory Breeding Bird Survey Data 1994/95-2012/13
Lynch, H.J., R. Naveen, P.V. Casanovas. 2013. Ecology (Data Paper) 94(11): 2653.
Understanding Lichen Diversity on the Antarctic Peninsula Using Parataxonomic Units as a Surrogate for Species Richness
Casanovas, P., H.J. Lynch, R. Naveen, and W.F. Fagan. 2013. Ecology (Data Paper) 94(9): 2110-2110.
Sensitivity Analysis Identifies High Influence Sites for Estimates of Penguin Krill Consumption on the Antarctic Peninsula
Lynch, H.J., N. Ratcliffe, J. Passmore, E. Foster, P.N. Trathan. 2013. Antarctic Science 25(1): 19-23.
Multi-Scale Patterns of Lichen and Moss Richness on the Antarctic Peninsula
Casanovas, P., H.J. Lynch, and W.F. Fagan. 2013. Ecography 36: 209-219.
The Gentoo Penguin
Lynch, H.J. 2013. In P.D. Boersma and P.G. Borboroglu (eds) Penguins: Natural History and Conservation. University of Washington Press, Seattle, Washington.
First Direct, Site-Wide Penguin Survey at Deception Island, Antarctica Suggests Significant Declines in Breeding Chinstrap Penguins
Naveen, R.*, H. J. Lynch*, S. Forrest, T. Mueller, and M. Polito. 2012. Polar Biology 35(12): 1879-1888. [* joint first authors]
Antarctic Peninsula Compendium, 3rd Edition
R. Naveen, and H.J. Lynch. 2011. Environmental Protection Agency, Washington, D.C.
Long-Term Changes in Populations of Seabirds on Petermann Island and Surrounding Islands in Graham Land, Antarctic Peninsula
Chesalin, M. R. Naveen, H. Lynch, I. Bullock, M. Rider, A. Miller, S. Forrest, R. Dagit, I. Dykyy, and V. Timofeyev. 2009. Marine Ecological Journal VIII(3): 5-13.
Censuses of Penguin, Blue-Eyed Shag Phalacrocorax Atriceps and Southern Giant Petrel Macronectes Giganteus Populations on the Antarctic Peninsula, 2001-2007
Lynch, H.J., R. Naveen, and W.F. Fagan. 2008. Marine Ornithology 36: 83-97.