Results 61 to 70 of about 904 (165)

Salmonella and Campylobacter spp. in Northern Elephant Seals, California

open access: yesEmerging Infectious Diseases, 2005
Campylobacter and Salmonella spp. prevalence and antimicrobial drug sensitivity were determined in northern elephant seals that had not entered the water and seals that were stranded on the California coast.
Robyn A. Stoddard   +5 more
doaj   +1 more source

Tooth Size Variation in Pinniped Dentitions. [PDF]

open access: yesPLoS ONE, 2015
It is contentious whether size variation among mammalian teeth is heterogeneous or homogeneous, whether the coefficient of variation is reliable, and whether the standard deviation of log-transformed data and the residual of standard deviation on mean ...
Mieczyslaw Wolsan   +3 more
doaj   +1 more source

Phocid seal leptin: tertiary structure and hydrophobic receptor binding site preservation during distinct leptin gene evolution [PDF]

open access: yes, 2012
The cytokine hormone leptin is a key signalling molecule in many pathways that control physiological functions. Although leptin demonstrates structural conservation in mammals, there is evidence of positive selection in primates, lagomorphs and ...
John A. Hammond (170370)   +17 more
core   +2 more sources

Change in the foraging strategy of female South American sea lions (Carnivora: Pinnipedia) after parturition

open access: yesScientia Marina, 2010
This study tests the hypothesis that female South American sea lions shift from off-shore, pelagic prey to coastal, benthic prey after parturition in order to reduce the foraging trip duration and hence the time pups remain unattended on the beach ...
Massimiliano Drago   +5 more
doaj   +1 more source

Beyond Serology: A Meta‐Analysis of Advancements in Molecular Detection of Brucella spp. in Seronegative Animals and Biological Samples

open access: yesVeterinary Medicine and Science, Volume 11, Issue 1, January 2025.
Molecular diagnostics, such as PCR and biosensor‐based techniques, offer high sensitivity in detecting Brucella spp. in seronegative animals, overcoming the limitations of traditional serological methods. The pooled detection rate of 35.08% suggests a substantial number of hidden carriers.
Md. Sadequl Islam   +4 more
wiley   +1 more source

动物基础知识讲座 第八讲 食肉目

open access: yes野生动物学报, 1983
食肉目包括体形和生活方式上各不相同的许多种哺乳动物,它们具有共同的起源和一系列共同的特征。食肉目(Carnivora)在系统发生上与鳍脚目(Pinnipedia)和己绝灭的肉齿目(Creo donta)关系最为密切,因此有些分类学家主张把上述三目都作为亚目,同属于食肉目,而将本讲介绍的兽类称为裂脚亚目(Fissipedia)。但是我们仍分别介绍食肉目和鳍脚目。
肖前柱, 王玉玺
doaj  

Interpretation of anatomical characters in phylogenetic analysis of Pinnipedia, with emphasis on Otariidae (Mammalia, Carnivora)

open access: yesBiotemas, 2013
The hypothesis that pinnipeds have a common origin gained support during the 1980s in discussions focused on the systematics of the group. However, the limited knowledge of the anatomy of several species and the frequent variation in several character ...
Daniela Sanfelice, César Drehmer
doaj   +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

A Pinnipedia alrend adaptációi és táplálkozása

open access: yes, 2011
A szakdolgozat a Pinnipedia subordo (úszólábúak) fajainak adaptációit és táplálkozásának főbb jellemzőit hivatott bemutatni. Általános képet ad a subordo családjainak hasonlóságairól,különbségeiről.
Sallai, Gábor
core  

Covariation in the Craniocervical Junction of Carnivora

open access: yesJournal of Morphology, Volume 285, Issue 11, November 2024.
The craniocervical junction in mammals is a biomechanically unique region that involves the occiput and two specialized vertebrae: the ring‐shaped atlas (CV1) and the axis (CV2) with its peculiar odontoid process (Dens). In Carnivora, the present study indicates that quantitative variation in CV1 morphology reflects a functional signal, while CV2 ...
Christine Böhmer, Mara Destina Ocak
wiley   +1 more source

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