Variation in body size of ringed seals (Pusa hispida hispida) across the circumpolar Arctic: evidence of morphs, ecotypes or simply extreme plasticity?

Autor: Kit M. Kovacs, John Citta, Tanya Brown, Rune Dietz, Steve Ferguson, Lois Harwood, Magali Houde, Ellen V. Lea, Lori Quakenbush, Frank Riget, Aqqalu Rosing-Asvid, Tom G. Smith, Vladimir Svetochev, Olga Svetocheva, Christian Lydersen

Publikováno v: Polar Research, Vol 40, Pp 1-18 (2021)

The ringed seal is a small phocid seal that has a northern circumpolar distribution. It has long been recognized that body size is variable in ringed seals, and it has been suggested that ecotypes that differ in size exist. This study explores patter

Externí odkaz: https://doaj.org/article/335448ab59074d5295feb82ae61d62ed

Report of the NAMMCO-ICES Workshop on Seal Modelling (WKSEALS 2020)

Autor: Sophie Smout, Kimberly Murray, Geert Aarts, Martin Biuw, Sophie Brasseur, Alejandro Buren, Fanny Empacher, Anne Kirstine Frie, James Grecian, Mike Hammill, Bjarni Mikkelsen, Arnaud Mosnier, Aqqalu Rosing-Asvid, Debbie Russell, Hans Skaug, Garry Stenson, Len Thomas, Jay ver Hoef, Lars Witting, Vladimir Zabavnikov, Tor Arne Øigård, Ruth Fernandez, Fern Wickson

Publikováno v: NAMMCO Scientific Publications, Vol 12, Iss 1 (2021)

To support sustainable management of apex predator populations, it is important to estimate population size and understand the drivers of population trends to anticipate the consequences of human decisions. Robust population models are needed, which

Externí odkaz: https://doaj.org/article/35ce8b0dd0244a4aaa781a36310acbf3

Drift diving by hooded seals (Cystophora cristata) in the Northwest Atlantic Ocean.

Autor: Julie M Andersen, Garry B Stenson, Mette Skern-Maurizen, Yolanda F Wiersma, Aqqalu Rosing-Asvid, Mike O Hammill, Lars Boehme

Publikováno v: PLoS ONE, Vol 9, Iss 7, p e103072 (2014)

Many pinniped species perform a specific dive type, referred to as a 'drift dive', where they drift passively through the water column. This dive type has been suggested to function as a resting/sleeping or food processing dive, and can be used as an

Externí odkaz: https://doaj.org/article/6b9574f4839944fd991bc903e65f9c4c

Quantitative fatty acid signature analysis reveals a high level of dietary specialization in killer whales across the North Atlantic

Autor: Anaïs Remili, Rune Dietz, Christian Sonne, Filipa I. P. Samarra, Audun H. Rikardsen, Lisa E. Kettemer, Steven H. Ferguson, Cortney A. Watt, Cory J. D. Matthews, Jeremy J. Kiszka, Eve Jourdain, Katrine Borgå, Anders Ruus, Sandra M. Granquist, Aqqalu Rosing‐Asvid, Melissa A. McKinney

Publikováno v: Journal of Animal Ecology
Remili, A, Dietz, R, Sonne, C, Samarra, F I P, Rikardsen, A H, Kettemer, L E, Ferguson, S H, Watt, C A, Matthews, C J D, Kiszka, J J, Jourdain, E, Borgå, K, Ruus, A, Granquist, S M, Rosing-Asvid, A & McKinney, M A 2023, ' Quantitative fatty acid signature analysis reveals a high level of dietary specialization in killer whales across the North Atlantic ', Journal of Animal Ecology, vol. 92, no. 6, pp. 1216-1229 . https://doi.org/10.1111/1365-2656.13920

1. Quantifying the diet composition of apex marine predators such as killer whales (Orcinus orca) is critical to assessing their food web impacts. Yet, with few exceptions, the feeding ecology of these apex predators remains poorly understood. 2. Her

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23d98bbc5e63dc5684ed20f116a023b0
https://hdl.handle.net/11250/3075527

Marine mammal hotspots across the circumpolar Arctic

Autor: Charmain D. Hamilton, Christian Lydersen, Jon Aars, Mario Acquarone, Todd Atwood, Alastair Baylis, Martin Biuw, Andrei N. Boltunov, Erik W. Born, Peter Boveng, Tanya M. Brown, Michael Cameron, John Citta, Justin Crawford, Rune Dietz, Jim Elias, Steven H. Ferguson, Aaron Fisk, Lars P. Folkow, Kathryn J. Frost, Dmitri M. Glazov, Sandra M. Granquist, Rowenna Gryba, Lois Harwood, Tore Haug, Mads Peter Heide‐Jørgensen, Nigel E. Hussey, Jimmy Kalinek, Kristin L. Laidre, Dennis I. Litovka, Josh M. London, Lisa L. Loseto, Shannon MacPhee, Marianne Marcoux, Cory J. D. Matthews, Kjell Nilssen, Erling S. Nordøy, Greg O’Corry‐Crowe, Nils Øien, Morten Tange Olsen, Lori Quakenbush, Aqqalu Rosing‐Asvid, Varvara Semenova, Kim E. W. Shelden, Olga V. Shpak, Garry Stenson, Luke Storrie, Signe Sveegaard, Jonas Teilmann, Fernando Ugarte, Andrew L. Von Duyke, Cortney Watt, Øystein Wiig, Ryan R. Wilson, David J. Yurkowski, Kit M. Kovacs

Publikováno v: Hamilton, C D, Lydersen, C, Aars, J, Acquarone, M, Atwood, T, Baylis, A, Biuw, M, Boltunov, A N, Born, E W, Boveng, P, Brown, T M, Cameron, M, Citta, J, Crawford, J, Dietz, R, Elias, J, Ferguson, S H, Fisk, A, Folkow, L P, Frost, K J, Glazov, D M, Granquist, S M, Gryba, R, Harwood, L, Haug, T, Heide-Jørgensen, M P, Hussey, N E, Kalinek, J, Laidre, K L, Litovka, D I, London, J M, Loseto, L L, MacPhee, S, Marcoux, M, Matthews, C J D, Nilssen, K, Nordøy, E S, O’Corry-Crowe, G, Øien, N, Olsen, M T, Quakenbush, L, Rosing-Asvid, A, Semenova, V, Shelden, K E W, Shpak, O V, Stenson, G, Storrie, L, Sveegaard, S, Teilmann, J, Ugarte, F, Von Duyke, A L, Watt, C, Wiig, Ø, Wilson, R R, Yurkowski, D J & Kovacs, K M 2022, ' Marine mammal hotspots across the circumpolar Arctic ', Diversity and Distributions, vol. 28, no. 12, pp. 2729-2753 . https://doi.org/10.1111/ddi.13543
Diversity and Distributions: A journal of biological invasions and biodiversity

Aim: Identify hotspots and areas of high species richness for Arctic marine mammals. Location: Circumpolar Arctic. Methods: A total of 2115 biologging devices were deployed on marine mammals from 13 species in the Arctic from 2005 to 2019. Getis-Ord

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9230ad6cd4148ff7d02dbc7739dc0c6
https://pure.au.dk/portal/da/publications/marine-mammal-hotspots-across-the-circumpolar-arctic(59702942-acb4-4778-8d36-3eb871711d05).html