Results 41 to 50 of about 2,822 (211)

Evaluating purifying selection in the mitochondrial DNA of various mammalian species [PDF]

open access: yes, 2013
Mitochondrial DNA (mtDNA), the circular DNA molecule inside the mitochondria of all eukaryotic cells, has been shown to be under the effect of purifying selection in several species.
Abrantes, Diogo   +8 more
core   +8 more sources

Elevation patterns and critical environmental drivers of the taxonomic, functional, and phylogenetic diversity of small mammals in a karst mountain area

open access: yesEcology and Evolution, 2020
Understanding how biodiversity components are related under different environmental factors is a fundamental challenge for ecology studies, yet there is little knowledge of this interplay among the biotas, especially small mammals, in karst mountain ...
Jian Sun   +8 more
doaj   +1 more source

Molecular-phylogenetic analyses of Ixodes species from South Africa suggest an African origin of bird-associated exophilic ticks (subgenus Trichotoixodes)

open access: yesParasites & Vectors, 2023
Background Among hard ticks (Acari: Ixodidae), the genus Ixodes comprises the highest number of species, which in turn are most numerous in the Afrotropical zoogeographic region.
Sándor Hornok   +9 more
doaj   +1 more source

The Fast and the Furriest: Investigating the Rate of Selection on Mammalian Toxins

open access: yesToxins, 2022
The evolution of venom and the selection pressures that act on toxins have been increasingly researched within toxinology in the last two decades, in part due to the exceptionally high rates of diversifying selection observed in animal toxins.
Leah Lucy Joscelyne Fitzpatrick   +3 more
doaj   +1 more source

Identifying Norwegian shrews (Soricidae) from non-dental mandibular characters

open access: yesFauna Norvegica, 1992
A method for discriminating between 6 species of Norwegian shrews (Soricidae) based on a few characters in the lower mandible is described. Length, height, and one angle were measured in cleaned mandibles (n = 297). When plotting angle/length on height,
Tore Fredriksen   +2 more
doaj   +1 more source

Evolutionary history of LINE-1 in the major clades of placental mammals [PDF]

open access: yes, 2016
BACKGROUND: LINE-1 constitutes an important component of mammalian genomes. It has a dynamic evolutionary history characterized by the rise, fall and replacement of subfamilies.
Dobigny, Gauthier   +3 more
core   +1 more source

They can dig it: semifossorial habits of the Mexican small-eared shrew (Mammalia: Cryptotis mexicanus)

open access: yesRevista Mexicana de Biodiversidad, 2017
Some small-eared shrews, genus Cryptotis, display modifications of the forelimb that have been interpreted as an adaptation for burrowing. As most of the species in the genus inhabit areas with poor accessibility and it is difficult to obtain direct ...
Lázaro Guevara
doaj   +1 more source

Recombinogenic Telomeres in Diploid Sorex granarius (Soricidae, Eulipotyphla) Fibroblast Cells [PDF]

open access: yesMolecular and Cellular Biology, 2014
The telomere structure in the Iberian shrew Sorex granarius is characterized by unique, striking features, with short arms of acrocentric chromosomes carrying extremely long telomeres (up to 300 kb) with interspersed ribosomal DNA (rDNA) repeat blocks. In this work, we investigated the telomere physiology of S. granarius fibroblast cells and found that
N S, Zhdanova   +11 more
openaire   +2 more sources

Mammal endemism In Italy: A review [PDF]

open access: yes, 2018
Although there are various checklists of Italian mammals, there is not yet a synthesis of those mammals that are endemic to Italy. Therefore, we provide for the first time a detailed review on Italian mammal endemic species including endemic taxa ...
Amori, Giovanni, Castiglia, Riccardo
core   +3 more sources

Beremendia (Mammalia, Soricidae) remains from the late Early Pleistocene Somssich Hill 2 locality (Southern Hungary) and their taxonomic, biostratigraphical, palaeoecological and palaeobiogeographical relations [PDF]

open access: yes, 2014
Beremendia fi ssidens and B. minor remains of the late Early Pleistocene vertebrate fauna of the Somssich Hill 2 locality are described. B. minor is reported here as a new element in the site.
Botka, D., Mészáros, L.
core   +5 more sources

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