Results 1 to 10 of about 10,615 (210)

Can sexual selection drive female life histories? A comparative study on Galliform birds [PDF]

open access: yes, 2007
Sexual selection is an important driver of many of the most spectacular morphological traits that we find in the animal kingdom (for example see Andersson, 1994). As such, sexual selection is most often emphasized as
A. Ø. MOOERS   +39 more
core   +2 more sources

Waves of genomic hitchhikers shed light on the evolution of gamebirds (Aves: Galliformes) : research article [PDF]

open access: yes, 2007
Background The phylogenetic tree of Galliformes (gamebirds, including megapodes, currassows, guinea fowl, New and Old World quails, chicken, pheasants, grouse, and turkeys) has been considerably remodeled over the last decades as new data and analytical ...
Kriegs, Jan Ole   +6 more
core   +1 more source

Cloning and Comparison of Prolactin Promoter in Galliformes

open access: yesThe Journal of Poultry Science, 2009
To investigate the mechanism regulating transcription of the prolactin (PRL) gene in avian species, the PRL promoter region in Ceylon junglefowl, Japanese quail, ring-necked pheasant, turkey, Indian peafowl and helmeted guineafowl were cloned and ...
Gen Hiyama   +2 more
doaj   +1 more source

The evolution of sperm morphometry in pheasants [PDF]

open access: yes, 2007
Postcopulatory sexual selection is thought to be a potent evolutionary force driving the diversification of sperm shape and function across species. In birds, insemination and fertilisation are separated in time and sperm storage increases the duration
Birkhead, T.R.   +5 more
core   +3 more sources

Population Status and Threats to Galliform Bird in the Arjo-Didessa River Valley, Southwestern Ethiopia

open access: yesInternational Journal of Zoology, 2023
The study was conducted to assess the species composition, population size, public knowledge, and threats to Galliform birds in the Arjo-Didessa River Valley, Southwestern Ethiopia.
Yihenew Aynalem   +2 more
doaj   +1 more source

THE FEATHER’S DIAGNOSTIC FEATURES OF GALLIFORMES

open access: yesТеория и практика судебной экспертизы, 2014
Microstructure of the contour feathers (remex and covert) of 9 species has been compared:Bonasa bonasia, Tetrao urogallus, Lagopus lagopus, Lyrurus tetrix, Coturnix coturnix,Perdix perdix, Francolinus francolinus, Phasianus colchichus, Gallus gallus ...
O. Chernova, O. Silaeva, T. Perfilova
doaj   +1 more source

Inter-familial relationships of the Gamefowl (Aves: Galliformes) based on complete mitochondrial genome sequences

open access: yesMitochondrial DNA. Part B. Resources, 2019
Galliformes is an order of heavy-bodied ground-foraging birds, with important economic value and scientific value. The taxonomic statuses of Galliformes birds have been studied intensively; however, the phylogenetic relationships of some families within ...
Kai Jiang, Fang Zhao, Zuhao Huang
doaj   +1 more source

Helminths of domestic and wild chicken birds (Aves: Galliformes) of Uzbekistan

open access: yesРоссийский паразитологический журнал, 2021
The purpose of the research is studying existing fauna and ecology of Galliform helminths in biogeocenoses of Uzbekistan.Materials and methods. Parasitic worms were collected from chicken-like birds of the terrestrial cenoses of Karakalpakstan and North ...
F. D. Akramova   +5 more
doaj   +1 more source

Climate and land-use changes threaten the effectiveness of protected areas for protecting Galliformes in Southeast Asia

open access: yesFrontiers in Ecology and Evolution, 2023
Climate and land-use changes and their interactions have a profound effect on biodiversity, especially in biodiverse areas such as Southeast Asia (SEA) where aggregations of endemic species are widespread.
Zhengxiao Liu   +9 more
doaj   +1 more source

Independent stratum formation on the avian sex chromosomes reveals inter-chromosomal gene conversion and predominance of purifying selection on the w chromosome [PDF]

open access: yes, 2014
We used a comparative approach spanning three species and 90 million years to study the evolutionary history of the avian sex chromosomes. Using whole transcriptomes, we assembled the largest cross-species dataset of W-linked coding content to date.
Harrison, PW   +4 more
core   +1 more source

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