Results 11 to 20 of about 681 (134)

Immunostaining of P450c17, Aromatase and Oestrogen Receptor Alpha in Germ and Somatic Cells During Gonadal Development in Greater Rhea. [PDF]

Anat Histol Embryol
ABSTRACT The greater rhea (Rhea americana), the largest bird species in South America, has significant economic value due to its meat, eggs, leather, feathers and oil. However, its lack of external sexual dimorphism poses challenges for reproductive management and breeding programmes.
Cristofoli M, de Brito DCC, Alcobaça MMO, Donoso FMPM, Jorge FMG, Novaes MAS, Oliveira MF, de Assis Neto AC.   +7 more
europepmc   +2 more sources

Metagenomic analysis of the gut microbiota of hooded cranes (Grus monacha) on the Izumi plain in Japan. [PDF]

FEBS Open Bio
We analyzed metagenomic sequencing data obtained from fecal samples of hooded cranes and wild ducks that winter on the Izumi Plain in Japan. Various organisms were identified in each sample, and their diversity differs between the crane and duck groups, suggesting that these two bird species may have distinct gut microbiota.
Takada K, Nakagawa S, Kryukov K, Ozawa M, Watanabe T.   +4 more
europepmc   +2 more sources

Genetic factors for short life span associated with evolution of the loss of flight ability. [PDF]

Ecol Evol, 2020
Positively selected genes at the branches of interest. Abstract Acquisition or loss of flying ability is evolutionarily linked with maximum life span (MLS) in mammals and birds. Although ecological factors, such as extrinsic mortality, may lead to either shortened or extended life spans through natural selection, MLS is influenced by complex molecular ...
Ikemoto A, Sato DX, Makino T, Kawata M.
europepmc   +2 more sources

West Nile Virus Monitoring in Flanders (Belgium) During 2022-2023 Reveals Endemic Usutu Virus Circulation in Birds. [PDF]

Transbound Emerg Dis
The recent emergence of West Nile virus (WNV) and Usutu virus (USUV) in some European countries has triggered an increase in animal and human cases across Europe. Wild birds, serving as key reservoirs for WNV and USUV, often act as crucial indicators for the introduction and spread of these viruses. Currently, there is no durable large‐scale monitoring
Sohier C, Breman FC, Vervaeke M, De Regge N.   +3 more
europepmc   +2 more sources

Complexity of avian evolution revealed by family-level genomes. [PDF]

Nature
Despite tremendous efforts in the past decades, relationships among main avian lineages remain heavily debated without a clear resolution. Discrepancies have been attributed to diversity of species sampled, phylogenetic method and the choice of genomic ...
Stiller J, Feng S, Chowdhury AA, Rivas-González I, Duchêne DA, Fang Q, Deng Y, Kozlov A, Stamatakis A, Claramunt S, Nguyen JMT, Ho SYW, Faircloth BC, Haag J, Houde P, Cracraft J, Balaban M, Mai U, Chen G, Gao R, Zhou C, Xie Y, Huang Z, Cao Z, Yan Z, Ogilvie HA, Nakhleh L, Lindow B, Morel B, Fjeldså J, Hosner PA, da Fonseca RR, Petersen B, Tobias JA, Székely T, Kennedy JD, Reeve AH, Liker A, Stervander M, Antunes A, Tietze DT, Bertelsen MF, Lei F, Rahbek C, Graves GR, Schierup MH, Warnow T, Braun EL, Gilbert MTP, Jarvis ED, Mirarab S, Zhang G.   +51 more
europepmc   +6 more sources

Palaeognaths Reveal Evolutionary Ancestry of the Avian Major Histocompatibility Complex Class II. [PDF]

Genome Biol Evol
Minias P, Babik W.
europepmc   +3 more sources

Osteological and Soft-Tissue Evidence for Pneumatization in the Cervical Column of the Ostrich (Struthio camelus) and Observations on the Vertebral Columns of Non-Volant, Semi-Volant and Semi-Aquatic Birds [PDF]

, 2015
© 2015 Apostolaki et al. This is an open access article distributed under the terms of the Creative Commons Attribution License [4.0], which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source ...
A Milani, AJ Bezuidenhout, AM Yates, Andrew A. Farke, AS King, AS King, B Müller, BC Livezey, CG Farmer, CG Farmer, D Schwarz, D Schwarz, D Schwarz-Wings, DA Hogg, DA Hogg, DB Wake, DJ Gower, DJ Heard, DR Carrier, Emily J. Rayfield, Emma R. Schachner, ER Schachner, FL Powell, G Mayr, H Magnussen, HE Evans, HG Seeley, HR Duncker, HR Duncker, HR Dunker, HR Dunker, J Bremer, J Harshman, J McLelland, JA Wilson, JA Wilson, JC Welty, JH Brackenbury, JH Brackenbury, JJ Baumel, JN Maina, JN Maina, JN Maina, JN Maina, JN Maina, JN Maina, JR Codd, KF Liem, LM Witmer, LPAM Claessens, LPAM Claessens, M Habib, M Nysten, M Wedel, MJ Wedel, MJ Wedel, MJ Wedel, MJ Wedel, MJ Wedel, Naomi E. Apostolaki, Paul M. Barrett, PC Sereno, PG Tickle, PM O’ Connor, PM O’Connor, PM O’Connor, PM O’Connor, R Fajardo, R Owen, RBJ Benson, RE Brown, RJ Butler, RJ Butler, RL Cieri, SF Perry, SJ Hackett, V Ghetie, W Meister   +77 more
core   +11 more sources

Spiritual relaxation to reduce dysmenorrhea: a quasy experimental

Medisains, 2020
Background: The dysmenorrhea prevalence is still reported high in the world. Several previous studies discovered that deep breathing relaxation effectively reduced dysmenorrhea.
Qurota A'yun, Mukhoirotin Mukhoirotin
doaj   +1 more source

Following the feeder: A global synthesis of disturbance‐based foraging associations of birds

Journal of Animal Ecology, Volume 92, Issue 12, Page 2263-2279, December 2023., 2023
Disturbance foraging has been understudied against the foundation of knowledge that exists on foraging behaviour. Our review represents the first of its kind in analyzing over a hundred years of foraging data to provide insight into the important of geography, phylogeny, and ecology in shaping disturbance foraging behaviour.
Jonah S. Dominguez, Mark E. Hauber, Corey E. Tarwater, Emily Williams, Sean MacDonald, Bridget Strejc, Henry S. Pollock   +6 more
wiley   +1 more source

Evolution of posture in amniotes–Diving into the trabecular architecture of the femoral head

Journal of Evolutionary Biology, Volume 36, Issue 8, Page 1150-1165, August 2023., 2023
We use 3D microanatomical parameters measured at the femoral head to study femoral posture in amniotes. We show that these parameters are not good indicators of femoral posture. Methods of ancestral state reconstruction hold great promise for improving our understanding of the evolution of posture in amniotes.
Jordan Gônet, Michel Laurin, John R. Hutchinson   +2 more
wiley   +1 more source