Results 51 to 60 of about 8,131 (174)

Full mitochondrial genome sequences of two endemic Philippine hornbill species (Aves: Bucerotidae) provide evidence for pervasive mitochondrial DNA recombination

open access: yesBMC Genomics, 2011
Background Although nowaday it is broadly accepted that mitochondrial DNA (mtDNA) may undergo recombination, the frequency of such recombination remains controversial.
Bleidorn Christoph   +2 more
doaj   +1 more source

Correlates of genetic monogamy in socially monogamous mammals: insights from Azara's owl monkeys [PDF]

open access: yes, 2014
Understanding the evolution of mating systems, a central topic in evolutionary biology for more than 50 years, requires examining the genetic consequences of mating and the relationships between social systems and mating systems.
Barelli C   +11 more
core   +3 more sources

A Brief Review of Non-Avian Reptile Environmental DNA (eDNA), with a Case Study of Painted Turtle (Chrysemys picta) eDNA Under Field Conditions

open access: yesDiversity, 2019
Environmental DNA (eDNA) is an increasingly used non-invasive molecular tool for detecting species presence and monitoring populations. In this article, we review the current state of non-avian reptile eDNA work in aquatic systems, and present a field ...
Clare I. M. Adams   +3 more
doaj   +1 more source

Feather growth rate and mass in nearctic passerines with variablemigratory behavior and molt pattern [PDF]

open access: yes, 2012
Bird species vary greatly in the duration of their annual complete feather molt. However, such variation is not well documented in birds from many biogeographic areas, which restricts our understanding of the diversification of molt strategies.
Barta Z.   +8 more
core   +2 more sources

Mitogenomic and Metabarcoding Resources for the Study and Conservation of Keystone Neotropical Raptors

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
We characterized complete mitochondrial genomes for nine keystone Neotropical raptors, including four threatened and five near‐threatened species, providing essential resources for phylogenetic and conservation studies. We also developed metabarcoding primers, enabling non‐invasive monitoring of Neotropical raptors via environmental DNA.
Diego De Panis   +2 more
wiley   +1 more source

Molecular detection and genetic diversity of avian haemosporidian parasites in Iran. [PDF]

open access: yesPLoS ONE, 2018
BACKGROUND:The mobility of birds across or between continents exposes them to numerous vectors that have the potential to transmit pathogens and spread them into new regions. A combination of rich species diversity of birds along with the small amount of
Leila Nourani   +3 more
doaj   +1 more source

High Genetic Diversity among Breeding Red-Backed Shrikes Lanius collurio in the Western Palearctic

open access: yesDiversity, 2019
Revealing the genetic population structure in abundant avian species is crucial for understanding speciation, conservation, and evolutionary history.
Liviu G. Pârâu   +2 more
doaj   +1 more source

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

Ancient DNA & stable isotope profiling of fossil eggshell [PDF]

open access: yes, 2012
Eggshell is frequently encountered within palaeontological and archaeological deposits and due to various chemical and physical properties, it is highly valued as a substrate for geochronology, palaeodietary and palaeoecological applications. Despite the
Oskam, Charlotte
core   +1 more source

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