Results 1 to 10 of about 10,639 (113)

Ontogeny of movement patterns in naïve grey seal pups inhabiting a complex continental shelf ecosystem. [PDF]

open access: yesPLoS ONE, 2023
Most vertebrate offspring must transition from the relative security of parental care (nutrition and protection) to independent foraging. Offspring face many challenges during this critical period, particularly in species where parental care ends at ...
Benia V R Nowak   +4 more
doaj   +2 more sources

Assessing seal carcasses potentially subjected to grey seal predation [PDF]

open access: yesScientific Reports, 2021
In order to conduct an objective evaluation of potential ecological effects of grey seal predation on marine mammals, it is essential to establish a broad knowledge base helping in the thorough identification of such cases during post-mortem examination.
Abbo van Neer   +6 more
doaj   +2 more sources

Corkscrew Seals: Grey Seal (Halichoerus grypus) Infanticide and Cannibalism May Indicate the Cause of Spiral Lacerations in Seals. [PDF]

open access: yesPLoS ONE, 2016
Large numbers of dead seals with characteristic spiral lesions have been washing ashore around the North Atlantic over the past two decades. Interactions with ship propellers and shark predation have been suggested as the likely causal mechanisms ...
Andrew Brownlow   +4 more
doaj   +2 more sources

A novel quantitative real-time PCR diagnostic assay for seal heartworm (Acanthocheilonema spirocauda) provides evidence for possible infection in the grey seal (Halichoerus grypus) [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2018
The distinct evolutionary pressures faced by Pinnipeds have likely resulted in strong coevolutionary ties to their parasites (Leidenberger et al., 2007). This study focuses on the phocid seal filarial heartworm species Acanthocheilonema spirocauda.
Caroline D. Keroack   +6 more
doaj   +2 more sources

Prevalence of Presenting Conditions in Grey Seal Pups (Halichoerus grypus) Admitted for Rehabilitation [PDF]

open access: yesVeterinary Sciences, 2015
A retrospective survey was performed on the presenting conditions of 205 live grey seal pups (Halichoerus grypus) admitted to the Cornish Seal Sanctuary in Gweek, United Kingdom between May 2005 and March 2011.
Marc A. C. Silpa   +3 more
doaj   +2 more sources

Wonders of Harbor and Grey Seal Whiskers: Morphology, Natural Frequencies, and 3D Modeling [PDF]

open access: yesAdvanced Science
Seals can track fish using highly sensitive whiskers; however, the extent to which their morphologically diverse whiskers respond to hydrodynamic signals across frequencies remains unexplored.
Xingwen Zheng   +4 more
doaj   +2 more sources

Underwater audiogram of the grey seal (Halichoerus grypus) [PDF]

open access: yesBiology Open
Andreas Ruser   +4 more
doaj   +2 more sources

After the bite: bacterial transmission from grey seals (Halichoerus grypus) to harbour porpoises (Phocoena phocoena) [PDF]

open access: yesRoyal Society Open Science, 2020
Recent population growth of the harbour porpoise (Phocoena phocoena), grey seal (Halichoerus grypus) and common seal (Phoca vitulina) in the North Sea has increased potential interaction between these species.
Maarten J. Gilbert   +7 more
doaj   +1 more source

Trophic niche overlap between sympatric harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus) at the southern limit of their European range (Eastern English Channel)

open access: yesEcology and Evolution, 2021
Sympatric harbour (Phoca vitulina) and grey seals (Halichoerus grypus) are increasingly considered potential competitors, especially since recent local declines in harbour seal numbers while grey seal numbers remained stable or increased at their ...
Yann Planque   +5 more
doaj   +1 more source

Heartworms in Halichoerus grypus: first records of Acanthocheilonema spirocauda (Onchocercidae; Filarioidea) in 2 grey seals from the North Sea

open access: yesParasitology, 2023
The assumed definitive host of the heartworm Acanthocheilonema spirocauda (Onchocerdidae; Filarioidea) is the harbour seal (Phoca vitulina). This filaroid nematode parasitizing in cardiac ventricles and blood vessel lumina of harbour seals (P.
Kristina Lehnert   +7 more
doaj   +1 more source

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