Results 1 to 10 of about 36 (36)

The influence of the optical characteristics of the environment on colour vision of earless seals [PDF]

open access: yesVestnik MGTU, 2017
The results of studying the influence of optical characteristics of sea water on the ability of earless seals to differentiate tablets of blue and red colours have been presented.
Pakhomov M. V.   +2 more
doaj   +1 more source

Taxonomic implications of morphometric analysis of earless seal limb bones [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Fossil Phocidae (earless seals) are mostly known from isolated postcranial material, forcing researchers to rely upon humeri and femora for the diagnosis of taxa and reconstruction of phylogeny.
Morgan Churchill, Mark D. Uhen
doaj   +1 more source

Evidence for positive selection on the leptin gene in Cetacea and Pinnipedia. [PDF]

open access: yesPLoS ONE, 2011
The leptin gene has received intensive attention and scientific investigation for its importance in energy homeostasis and reproductive regulation in mammals.
Li Yu   +8 more
doaj   +1 more source

The paradox of learned song in a semi‐solitary mammal

open access: yesEthology, Volume 129, Issue 9, Page 445-453, September 2023., 2023
In past decades, pinnipeds have become a popular example of non‐human vocal production learning. In the case of harbor seals (Phoca vitulina), this is mainly owed to Hoover—a human‐raised seal pup, that once adult, imitated its former caretakers speech in a breeding context.
Diandra Duengen, Andrea Ravignani
wiley   +1 more source

Investigating life‐history traits of Steller sea lions with multistate hidden Markov mark–recapture models: Age at weaning and body size effects

open access: yesEcology and Evolution, Volume 11, Issue 2, Page 714-734, January 2021., 2021
Extended maternal care past age 1 was common in Steller sea lions, but ranged geographically (e.g., 0.54–0.86 were weaned at age 1); where offspring were smallest, weaning was later. Earlier weaning and larger offspring were associated with reduced adult female survival but were unrelated to population trends, suggesting this trait may be optimized for
Kelly K. Hastings   +4 more
wiley   +1 more source

SEAL LOUSE (ECHINOPHTHIRIDAE) AS VECTORS FOR INVASIVE AND INFECTIOUS DISEASE AGENTS OF PINNIPEDS

open access: yesЮг России: экология, развитие, 2017
The aim of the presented article is to analyze seal lice (Phthiraptera: Anoplura, Echinophthiridae) adaptation to aquatic environment – permanent parasites of pinnipeds, as well as available literature data about seal lice as pathogen vectors of their ...
Mikhail Yu. Shchelkanov   +7 more
doaj   +1 more source

USING OF POWERED PARAGLIDER IN THE TAUISKAYA GUBA BAY, THE OKHOTSK SEA, FOR LOCAL AIREAL SURVEYS AND OBSERVATIONS ON EARLESS SEALS

open access: yesИзвестия ТИНРО, 2019
Powered paraglider using for local aerial surveys and observations on real seals is described in combination with routine watch from the coastal observation point and motor boat. The results of conventional and combined observations are compared.
M. B. Gorshunov
doaj   +1 more source

New C‐Terminal Conserved Regions of Tafazzin, a Catalyst of Cardiolipin Remodeling

open access: yesOxidative Medicine and Cellular Longevity, Volume 2019, Issue 1, 2019., 2019
Cardiolipin interacts with many proteins of the mitochondrial inner membrane and, together with cytochrome C and creatine kinase, activates them. It can be considered as an integrating factor for components of the mitochondrial respiratory chain, which provides for an efficient transfer of electrons and protons.
Gregory A. Shilovsky   +7 more
wiley   +1 more source

A framework for integrating thermal biology into fragmentation research

open access: yesEcology Letters, Volume 19, Issue 4, Page 361-374, April 2016., 2016
Abstract Habitat fragmentation changes thermal conditions in remnant patches, and thermal conditions strongly influence organism morphology, distribution, and activity patterns. However, few studies explore temperature as a mechanism driving ecological responses to fragmentation. Here we offer a conceptual framework that integrates thermal biology into
K. T. Tuff   +3 more
wiley   +1 more source

A novel papillomavirus in a New Zealand fur seal (Arctocephalus forsteri) with oral lesions

open access: yesnpj Viruses
Despite being the predominant seal species in the Australian-New Zealand region and serving as a key indicator of marine environmental health, little is known about infectious diseases in New Zealand fur seals (Long-nosed fur seal; Arctocephalus forsteri)
Jonathon C. O. Mifsud   +6 more
doaj   +1 more source

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