Results 11 to 20 of about 8,227 (177)

Using Historic and Contemporary Genomes to Assess the Genetic Consequences of a Population Decline in an Endangered Tern Population. [PDF]

Evol Appl
ABSTRACT Many migratory species have experienced severe population declines, but the genetic consequences of such declines are still rarely assessed. The last Central European population of gull‐billed terns (Gelochelidon nilotica) has declined from 500 breeding pairs in the 1940s to 52 in 2025, whereas Mediterranean populations of this migratory ...
Schnelle A, Rollins RE, Müller IA, Irestedt M, Cecere JG, Serra L, Gutiérrez JS, Masero JA, Risch M, Bouwhuis S, Liedvogel M.   +10 more
europepmc   +2 more sources

Use of Contaminated Habitat and Associated Selenium Uptake Mediate Haemosporidian Parasite Infections in Wild Passerine Birds. [PDF]

Ecol Evol
We conducted a community‐scale field study to evaluate whether trace element contaminants derived from coal combustion residuals and nuclear fission products alter the dynamics of haemosporidian blood parasites, dipteran vectors, and avian hosts in riparian and wetland habitats in South Carolina, USA.
Werner CS, Chapman M, Peach DAH, DeVault TL, Rhodes OE.   +4 more
europepmc   +2 more sources

VoronaGasyCodes: A Public Database of Mitochondrial Barcodes for Malagasy Birds. [PDF]

Mol Ecol Resour
ABSTRACT Molecular tools are increasingly being used to survey the presence of biodiversity and their interactions within ecosystems. Indirect methods, like environmental DNA (eDNA) and invertebrate‐derived DNA (iDNA), are dependent on sequence databases with accurate and sufficient taxonomic representation. These methods are increasingly being used in
Reddy S, Wacker K, Fahmy M, Hekkala E, Bates JM, Goodman SM, Hackett SJ, Raherilalao MJ, Maddox JD.   +8 more
europepmc   +2 more sources

Genetic Relationship Analysis of <i>Pastor roseus</i> Based on <i>COI</i> and <i>Cytb</i> Gene Sequences. [PDF]

Ecol Evol
Pastor roseus exhibits exceptionally high mitochondrial diversity (haplotype diversity Hd > 0.94). The AT‐rich nucleotide composition in its COI and Cytb genes enhances energy metabolism efficiency during flight, while high haplotype diversity contributes to population resilience against environmental fluctuations.
Sun X, Wang X, Li R, Liu H, Xu Y, Ji R, Lin J, Yang K, Ye X.   +8 more
europepmc   +2 more sources

Mitochondrial heteroplasmy in an avian hybrid form (Passer italiae: Aves, Passeriformes) [PDF]

, 2019
Mitochondrial heteroplasmy is the result from biparental transmission of mitochondrial DNA (mtDNA) to the offspring. In such rare cases, maternal and paternal mtDNA is present in the same individual.
Giacalone G., Kehlmaier C., Lo Valvo M., Packert M.   +3 more
core   +1 more source

An Intergeneric Hybrid Between Historically Isolated Temperate and Tropical Jays Following Recent Range Expansion. [PDF]

Ecol Evol
We document the first known hybridization event between the Green Jay (Cyanocorax yncas) and Blue Jay (Cyanocitta cristata), two distantly related species whose ranges now overlap in Texas due to climate‐driven range expansions. Genetic and morphological evidence confirm this unprecedented hybridization, which represents a remarkable breach of ...
Stokes BR, Keitt TH.
europepmc   +2 more sources

Ancient origin and maternal inheritance of blue cuckoo eggs [PDF]

, 2016
Maternal inheritance via the female-specific W chromosome was long ago proposed as a potential solution to the evolutionary enigma of co-existing host-specific races (or 'gentes') in avian brood parasites.
Ekrem, Torbjørn, Fossøy, Frode, Liang, Wei, Moksnes, Arne, Møller, Anders P., Rutila, Jarkko, Røskaft, Eivin, Sorenson, Michael D., Stokke, Bård G., Takasu, Fugo, Yang, Canchao   +10 more
core   +3 more sources

Sequencing of the complete mitochondrial genome of the common raven Corvus corax (Aves: Corvidae) confirms mitogenome-wide deep lineages and a paraphyletic relationship with the Chihuahuan raven C. cryptoleucus. [PDF]

PLoS ONE, 2017
Previous studies based on single mitochondrial markers have shown that the common raven (Corvus corax) consists of two highly diverged lineages that are hypothesised to have undergone speciation reversal upon secondary contact. Furthermore, common ravens
Arild Johnsen, Anna M Kearns, Kevin E Omland, Jarl Andreas Anmarkrud   +3 more
doaj   +1 more source

Low variation in the polymorphic Clock gene poly-Q region despite population genetic structure across barn swallow (Hirundo rustica) populations. [PDF]

PLoS ONE, 2011
Recent studies of several species have reported a latitudinal cline in the circadian clock gene, Clock, which influences rhythms in both physiology and behavior. Latitudinal variation in this gene may hence reflect local adaptation to seasonal variation.
Roi Dor, Irby J Lovette, Rebecca J Safran, Shawn M Billerman, Gernot H Huber, Yoni Vortman, Arnon Lotem, Andrew McGowan, Matthew R Evans, Caren B Cooper, David W Winkler   +10 more
doaj   +1 more source

Species Limits and Phylogeography of North American Cricket Frogs (Acris: Hylidae) [PDF]

, 2008
Cricket frogs are widely distributed across the eastern United States and two species, the northern cricket frog (Acris crepitans) and the southern cricket frog (A. gryllus) are currently recognized. We generated a phylogenetic hypothesis for Acris using
Berendzen, Peter B., Gamble, Tony, Shaffer, H. Bradley, Simons, Andrew M., Starkey, David E.   +4 more
core   +2 more sources