Results 41 to 50 of about 1,961 (136)

Maternal zinc alleviates tert-butyl hydroperoxide-induced mitochondrial oxidative stress on embryonic development involving the activation of Nrf2/PGC-1α pathway

open access: yesJournal of Animal Science and Biotechnology, 2023
Background Mitochondrial dysfunction induced by excessive mitochondrial reactive oxygen species (ROS) damages embryonic development and leads to growth arrest.
Liang Huang   +11 more
doaj   +1 more source

Comparative Phylogeography of Southern African Bird Species Suggests an Ephemeral Speciation Model

open access: yesDiversity, 2021
Southern Africa is remarkably rich in avian species diversity; however, the evolutionary and biogeographic mechanisms responsible for that diversity are, in general, poorly understood, and this is particularly true with respect to the many species that ...
Gary Voelker   +3 more
doaj   +1 more source

High Gene Flow Despite Urbanization: Genetic Diversity and Structure of the Eastern Spotted Dove (Spilopelia chinensis) in Jiangsu Province, China and Implications for Releasing Confiscated Individuals

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
This study reveals high haplotype diversity but low nucleotide diversity in Eastern Spotted Dove (Spilopelia chinensis) populations across Jiangsu Province, China, based on mitochondrial Cytb and D‐loop sequences from 139 individuals. Despite sampling from 13 sites spanning five geographical regions and varying urbanization levels, genetic analyses ...
Dawei Liu   +4 more
wiley   +1 more source

A new species of Muscicapa flycatcher from Sulawesi, Indonesia.

open access: yesPLoS ONE, 2014
The Indonesian island of Sulawesi, a globally important hotspot of avian endemism, has been relatively poorly studied ornithologically, to the extent that several new bird species from the region have been described to science only recently, and others ...
J Berton C Harris   +6 more
doaj   +1 more source

Unravelling the diversity of the Crassiphialinae (Digenea: Diplostomidae) with molecular phylogeny and descriptions of five new species

open access: yesCurrent Research in Parasitology and Vector-Borne Diseases, 2021
Crassiphialinae Sudarikov, 1960 is a large subfamily of the Diplostomidae Poirier, 1886 with a complex taxonomic history. It includes a diversity of species parasitic in the intestines of avian and mammalian definitive hosts worldwide.
Tyler J. Achatz   +10 more
doaj   +1 more source

Common Chiffchaffs (Phylloscopus collybita) Diverge in a Genomic Region Associated With Migration Differences in Willow Warblers (Phylloscopus trochilus)

open access: yesMolecular Ecology, Volume 35, Issue 13, July 2026.
ABSTRACT Despite technological advances in both tracking and sequencing technologies, finding the genetic mechanisms behind migratory traits remains a challenge. Recent studies have shown that migratory direction in European willow warblers (Phylloscopus trochilus) is mainly influenced by a repeat‐rich region named MARB.
Violeta Caballero‐Lopez   +10 more
wiley   +1 more source

Hybridization between two recently diverged Neotropical passerines: The Pearly-bellied Seedeater Sporophila pileata, and the Copper Seedeater S. bouvreuil (Aves, Passeriformes, Thraupidae).

open access: yesPLoS ONE, 2020
The small Neotropical finches called capuchinos are outstanding because they have experienced one of the most recent and explosive avian radiations ever documented for birds. Despite very low morphological and niche divergence among species, many of them
Cesar A B Medolago   +3 more
doaj   +1 more source

Expansion From Lowland Pleistocene Refugia Followed by Cryptic Introgression in an African Elevational Generalist Bird

open access: yesMolecular Ecology, Volume 35, Issue 14, July 2026.
ABSTRACT The immense biodiversity observed in tropical forests has inspired the study of evolution since its inception, and numerous hypotheses have been generated to explain this diversity. One major driver of tropical forest biodiversity has been the repeated climatic fluctuations due to the Pleistocene glacial cycles.
Ethan F. Gyllenhaal   +9 more
wiley   +1 more source

Genetic Divergence of an Avian Endemic on the Californian Channel Islands. [PDF]

open access: yesPLoS ONE, 2015
The Californian Channel Islands are near-shore islands with high levels of endemism, but extensive habitat loss has contributed to the decline or extinction of several endemic taxa. A key parameter for understanding patterns of endemism and demography in
Amy G Wilson   +3 more
doaj   +1 more source

Interplay Between River Formation and Historical Climatic Changes Drove Diversification of the Thamnomanes caesius and T. schistogynus (Passeriformes, Thamnophilidae) Species Complex Across Amazonian and Atlantic Forests

open access: yesZoologica Scripta, Volume 55, Issue 4, Page 555-567, July 2026.
ABSTRACT The Amazon and Atlantic forests harbour immense biodiversity shaped by complex evolutionary history with diverse processes leading to species build‐up. We investigated the Cinereous Antshrike species complex (Thamnomanes caesius and T. schistogynus) to disentangle the relative contributions of riverine barriers and historical climatic ...
Henrique Batalha‐Filho   +6 more
wiley   +1 more source

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