Results 11 to 20 of about 567 (69)

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

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

Characterization of pinniped vibrissal type and number

open access: yesMarine Mammal Science, Volume 41, Issue 1, January 2025.
Abstract Pinnipeds have vibrissae with which they can explore their environment. Two vibrissal parameters that differ in pinnipeds are shape and number. Regarding shape, most phocids have undulated vibrissae, whereas the vibrissae of a few phocids, all otariids and walruses are smooth.
Katharina Morgenthal   +4 more
wiley   +1 more source

Molecular Discovery of Filarial Nematode DNA in an Endangered Wild Pinniped (Galapagos Sea Lion, Zalophus wollebaeki)

open access: yesEcology and Evolution, Volume 14, Issue 11, November 2024.
Our research explores to use and optimization of molecular methods for the detection and identification of DNA from filarial nematodes in Galapagos sea lion whole blood samples. We developed an accessible workflow for the genus and species‐level identifications of filarial nematodes present in wildlife DNA samples, and used this assay to test 28 ...
Isabella G. Livingston   +10 more
wiley   +1 more source

The gross reproductive morphology of the male Temminck's pangolin Smutsia temminckii (Smuts, 1832)

open access: yesAnatomia, Histologia, Embryologia, Volume 53, Issue 4, July 2024.
Abstract The Temminck's pangolin (Smutsia temminckii) is one of eight pangolin species worldwide and the only pangolin present in southern Africa. Historically, pangolins have not been able to reproduce successfully in captivity and this may be in part due to the lack of knowledge and understanding with regards to the pangolin reproductive system ...
Lauren Nicole Tink   +2 more
wiley   +1 more source

Evaluating the performance of semiautomated photographic identification programs for leopard seals

open access: yesWildlife Society Bulletin, Volume 48, Issue 2, June 2024.
The movement and distribution of leopard seals in relation to climate change can be examined in a more timely and cost‐effective manner using technology. We evaluated the performance of three semiautomated photographic identification programs, HotSpotter, Interactive Individual Identification System's Pattern+ (I3S), and Wild‐ID, with leopard seal ...
Alexander A. Grabham   +2 more
wiley   +1 more source

Evaluating hybrid speciation and swamping in wild carnivores with a decision‐tree approach

open access: yesConservation Biology, Volume 38, Issue 1, February 2024.
Abstract Hybridization is an important evolutionary force with a principal role in the origin of new species, known as hybrid speciation. However, ongoing hybridization can create hybrid swamping, in which parental genomes are completely lost. This can become a biodiversity threat if it involves species that have adapted to certain environmental ...
Laura Tensen, Klaus Fischer
wiley   +1 more source

Modeling Ringed and Bearded Seal Future Habitats Indicates Stability, Shifts, and Refugia. [PDF]

open access: yesGlob Chang Biol
Farnole P   +5 more
europepmc   +1 more source

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