Results 61 to 70 of about 154,086 (179)

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

Natural and Anthropogenic Drivers of Genomic Diversity in the California Towhee: Conservation Implications for Peripheral Populations

open access: yesEvolutionary Applications, Volume 19, Issue 8, August 2026.
ABSTRACT Demographic, geographic, and environmental factors such as effective population size, isolation, and habitat availability interact to shape contemporary levels of population genomic diversity. Such factors must be carefully evaluated and contextualized at both the intraspecific and interspecific levels when assessing the conservation status of
Andrew N. Black   +9 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

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

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

Genetic divergence between isolated populations of the North Island New Zealand Rifleman (Acanthisitta chloris granti) implicates ancient biogeographic impacts rather than recent habitat fragmentation

open access: yesEcology and Evolution, 2021
This research investigates the extent and causal mechanisms of genetic population divergence in a poorly flighted passerine, the North Island Rifleman or Titipounamu (Acanthisitta chloris granti).
Sarah J. Withers   +4 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

mtDNA-CN measured across DNA extraction methods.

open access: yes, 2020
mtDNA-CN measured by qPCR was mean-zeroed and averaged across three runs for Lyse, PCIAA and Qiagen Kit DNA extractions. Variance for Lyse, PCIAA and Qiagen Kit are 0.02, 0.17 and 0.59 respectively. PCIAA, phenol:chloroform:isoamyl alcohol.
Jason A. Sumpter (8384526)   +12 more
core   +1 more source

A critical reassessment of the role of mitochondria in tumorigenesis [PDF]

open access: yes, 2005
<p><b>Background:</b> Mitochondrial DNA (mtDNA) is being analyzed by an increasing number of laboratories in order to investigate its potential role as an active marker of tumorigenesis in various types of cancer.
Bandelt, H.J.   +23 more
core   +1 more source

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