Results 31 to 40 of about 842,321 (247)

Finescale topographical correlates of behavioural investment in offspring by female grey seals, Halichoerus grypus [PDF]

open access: yes, 2000
Grey seals breed colonially on substrates ranging from ice to rocky or sandy beaches. Clear differences in seal behaviour patterns exist among such broad classes of breeding habitat.
Thomas, C.J.   +9 more
core   +1 more source

The role of oxytocin in the maternal behaviour of the grey seal (Halichoerus grypus) [PDF]

open access: yes, 2015
The neuropeptide hormone oxytocin plays an integral role in mammalian reproductive endocrinology and behaviour. It has been utilised to study the physiological factors driving maternal behaviour in both laboratory and domestic mammals, but few studies ...
Robinson, Kelly J.
core   +2 more sources

Increasing numbers of harbour seals and grey seals in the Solent

open access: yesEcology and Evolution, 2021
Harbour seals (Phoca vitulina) and grey seals (Halichoerus grypus) both occur within the UK, but display regional contrasting population trends. While grey seals are typically increasing in number, harbour seals have shown varying trends in recent ...
Robyne Castles   +5 more
doaj   +1 more source

Deiminated Proteins and Extracellular Vesicles as Novel Biomarkers in Pinnipeds: Grey seal (Halichoerus gryptus) and Harbour seal (Phoca vitulina) [PDF]

open access: yes, 2020
Peptidylarginine deiminases (PADs) are phylogenetically conserved calcium-dependent enzymes which post-translationally convert arginine into citrulline in target proteins in an irreversible manner, leading to functional and structural changes in target ...
Lange, S.   +11 more
core   +1 more source

On the dynamics and selective transport of fatty acids and organochlorines in lactating grey seals (Halichoerus grypus) [PDF]

open access: yes, 2010
This thesis examines fatty acid (FA) and polychlorinated biphenyl (PCB) dynamics in a marine top predator, the grey seal (Halichoerus grypus,) and their transfer during lactation from mother to offspring.
Arriola Ortiz, Aline
core   +2 more sources

A novel tool to mitigate by-catch mortality of baltic seals in coastal fyke net fishery.

open access: yesPLoS ONE, 2015
Developing methods to reduce the incidental catch of non-target species is important, as by-catch mortality poses threats especially to large aquatic predators.
Sari M Oksanen   +3 more
doaj   +1 more source

The diet and feeding ecology of harbour seals around Britain [PDF]

open access: yes, 2015
Since 2000, there has been a marked decline in the number of harbour seals in some regions around Britain; one possible contributing cause is competition for prey with sympatric grey seals.
Wilson, Lindsay J.
core   +2 more sources

An approximate Bayesian method applied to estimating the trajectories of four British grey seal (Halichoerus grypus) populations from pup counts. [PDF]

open access: yes, 2011
1. For British grey seals, as with many pinniped species, population monitoring is implemented by aerial surveys of pups at breeding colonies. Scaling pup counts up to population estimates requires assumptions about population structure; this is ...
Dave Thompson   +7 more
core   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Status of grey seals (Halichoerus grypus) in Norway

open access: yesNAMMCO Scientific Publications, 2007
During the period September-December in 2001-2003, ship based surveys of grey seal (Halichoerus grypus) pups, including tagging, counting and staging of pups, were conducted along the Norwegian coast.
Kjell Tormod Nilssen, Tore Haug
doaj   +1 more source

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