Results 1 to 10 of about 728 (153)

Insularity and Aridity as Drivers of Mandibular Disparity in Thylamys elegans (Waterhouse, 1839) from Populations of the Atacama Desert, Chile [PDF]

open access: yesAnimals, 2022
Island ecosystems differ in several elements from mainland ecosystems and may induce variations related to natural selection and patterns of adaptation in most aspects of the biology of an organism.
José I. Arriagada   +7 more
doaj   +4 more sources

Demography and Population Dynamics of a Small Mammal Assemblage in Chilean Semiarid Thorn‐Scrub Habitat: A 30‐Year Study [PDF]

open access: yesEcology and Evolution
Characterizing population dynamics in heterogeneous environments requires comprehensive long‐term data. We monitored seven small mammals in replicated sites in a semiarid Chilean thorn‐scrub habitat over 30 years using monthly capture–mark–recapture (CMR)
Douglas A. Kelt   +6 more
doaj   +3 more sources

A comprehensive overview of the genetic diversity in Thylamys elegans (Didelphimorphia: Didelphidae): establishing the phylogeographic determinants

open access: yesRevista Chilena De Historia Natural, 2021
Background For the genus Thylamys, the rivers have been reported as barriers to dispersal, limiting current and historical distribution of its lineages.
Dusan Boric-Bargetto   +2 more
exaly   +4 more sources

Divergent patterns of meiotic double strand breaks and synapsis initiation dynamics suggest an evolutionary shift in the meiosis program between American and Australian marsupials [PDF]

open access: yesFrontiers in Cell and Developmental Biology, 2023
In eutherian mammals, hundreds of programmed DNA double-strand breaks (DSBs) are generated at the onset of meiosis. The DNA damage response is then triggered.
F. Javier Valero-Regalón   +17 more
doaj   +2 more sources

First Report of Bartonella spp. in Marsupials from Brazil, with a Description of Bartonella harrusi sp. nov. and a New Proposal for the Taxonomic Reclassification of Species of the Genus Bartonella [PDF]

open access: yesMicroorganisms, 2022
The genus Bartonella (Rhizobiales: Bartonellaceae) encompasses facultative intracellular Gram-negative alphaproteobacteria that parasitize mainly erythrocytes and endothelial cells, as well as macrophages, monocytes and dendritic cells. Although they can
Renan Bressianini do Amaral   +9 more
doaj   +2 more sources

Kinetoplastid Species Maintained by a Small Mammal Community in the Pantanal Biome [PDF]

open access: yesPathogens, 2022
Kinetoplastids include species economically important in agriculture, livestock, and human health. We evaluated the richness of kinetoplastids that infect small mammals in patches of unflooded forests in the Pantanal biome, an area where we hypothesize ...
Filipe Martins Santos   +10 more
doaj   +2 more sources

Natural history of the relict marsupial Monito del Monte at the most extreme altitudinal and latitudinal location

open access: yesEcosphere, 2021
Until a few years ago, the “monito del monte” (Dromiciops gliroides) was considered the sole surviving species of Microbiotheria, the sister group of Australidelphia (Australian marsupials).
Carlos Mejías   +6 more
doaj   +2 more sources

Gastrointestinal helminths of opossums (Mammalia: Didelphidae) from Bolivia [PDF]

open access: yesParasitology
A total of 32 taxa of helminths were recovered from 52 individuals corresponding to 17 species of didelphiomorph marsupials collected across Bolivia.
F. Agustín Jiménez   +4 more
doaj   +2 more sources

Disseminated protozoal infection in a wild feathertail glider (Acrobates pygmaeus) in Australia [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2020
This is the first report of a disseminated protozoal infection in a wild feathertail glider (Acrobates pygmaeus) from south-eastern Australia. The glider was found dead in poor body condition.
Peter H. Holz   +3 more
doaj   +2 more sources

Neohilgertia venusti Gen. N. SP. N. (Nematoda: Oxyuridae)from Thylamys venustus cinderellus (Thomas) Reig, Kirsch & Marshall, 1985 (Marsupialia: Didelphidae) in Burruyacu, Tucuman, Argentina - Systematic position and possible evolution

open access: yesMemorias Do Instituto Oswaldo Cruz, 1990
Neohilgertia gen. n. proposed for Oxyuridae nematodes from Thylamys venustus cinderellus (Marsupialia: Didelphidae) is described. The hypothesis about the possibility of a secondary parasitism for marsupials and the origin of the genus in the African ...
Graciela T. Navone   +2 more
exaly   +3 more sources

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