Results 91 to 100 of about 8,171 (175)

Genetic Differentiation in a Wide‐Ranging Tropical Seabird in the Indian Ocean Is Linked With Oceanographic Factors

open access: yesDiversity and Distributions, Volume 31, Issue 11, November 2025.
ABSTRACT Aim Knowledge of the main drivers of population differentiation is crucial for understanding evolutionary processes and preserving biodiversity. While primarily studied in terrestrial habitats, the mechanisms operating in the marine realm are less well understood.
Helena Teixeira   +17 more
wiley   +1 more source

Population structure of avian malaria parasites

open access: yesEcology and Evolution, 2019
The geographic distribution of genetic diversity in malaria parasite populations (Apicomplexa: Haemosporida) presumably influences local patterns of virulence and the evolution of host‐resistance, but little is known about population genetic structure in
Meghann B. Humphries   +2 more
doaj   +1 more source

Reproductive Isolation and Cryptic Introgression in a Sky Island Enclave of Appalachian Birds [PDF]

open access: yes, 2013
Reproductive isolation is central to the speciation process, and cases where the strength of reproductive isolation varies geographically can inform our understanding of speciation mechanisms.
Braun, Michael J., Sattler, Gene D.
core   +1 more source

Past Environmental Change and Seasonal Migration Shaped Pronounced Variability in the Phylogenomic History of a Morphologically Cryptic Bird Radiation

open access: yesJournal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim Modelling demographic changes through time in combination with phylogenomic reconstructions provides a promising avenue to better understand the impact of past environmental changes on biogeographic patterns, yet we have only begun to exploit this potential.
Qindong Tang   +6 more
wiley   +1 more source

A key to selected rockfishes (Sebastes spp.) based on mitochondrial DNA restriction fragment analysis [PDF]

open access: yes, 2006
Larval and juvenile rockfishes (Sebastes spp.) are difficult to identify using morphological characters. We developed a key based on sizes of restriction endonuclease fragments of the NADH dehydrogenase-3 and -4 (ND3/ND4) and 12S and 16S ribosomal RNA ...
Asahida, Takashi   +5 more
core  

The hitchhiker's guide to avian malaria [PDF]

open access: yes, 2006
The ecological mechanisms underlying the dispersal of parasites are poorly understood, which is of particular concern in view of currently emerging infectious diseases.
Cosgrove, Catherine L, Wood, Matthew J
core   +1 more source

The complete mitochondrial genome sequence of the little egret (Egretta garzetta)

open access: yesGenetics and Molecular Biology, 2015
Many phylogenetic questions in the Ciconiiformes remain unresolved and complete mitogenome data are urgently needed for further molecular investigation.
Yi Zou   +4 more
doaj   +1 more source

DNA barcoding of passerine birds in Iran [PDF]

open access: yesZooKeys
Exploring genetic diversity is essential for precise species delimitation, especially within taxonomically complex groups like passerine birds.
Sahar Javaheri Tehrani   +10 more
doaj   +3 more sources

Calibration choice, rate smoothing, and the pattern of tetrapod diversification according to the long nuclear gene RAG-1 [PDF]

open access: yes, 2007
This is an electronic version of an article published in Systematic Biology, 2007; 56 (4):543-563. Systematic Biology is available online at informaworld: http://www.informaworld.com/smpp/content~db=all?content=10.1080/10635150701477825A phylogeny of ...
Foster, R., Hugall, A., Lee, M.
core   +1 more source

Extensive polymorphism and geographical variation at a positively selected MHC class II B gene of the lesser kestrel (Falco naumanni) [PDF]

open access: yes, 2008
Understanding the selective forces that shape genetic variation in natural populations remains a high priority in evolutionary biology. Genes at the major histocompatibility complex (MHC) have become excellent models for the investigation of adaptive ...
Gravesteijn, D. J.   +5 more
core   +1 more source

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