Results 61 to 70 of about 7,917 (185)

Gene Expression Shifts in Emperor Penguin Adaptation to the Extreme Antarctic Environment

Molecular Ecology, EarlyView.
ABSTRACT Gene expression can accelerate ecological divergence by rapidly tweaking the response of an organism to novel environments, with more divergent environments exerting stronger selection and supposedly, requiring faster adaptive responses. Organisms adapted to extreme environments provide ideal systems to test this hypothesis, particularly when ...
Josephine R. Paris, Flávia A. Nitta Fernandes, Federica Pirri, Samuele Greco, Marco Gerdol, Alberto Pallavicini, Marine Benoiste, Clément Cornec, Lorenzo Zane, Brian Haas, Céline Le Bohec, Emiliano Trucchi   +11 more
wiley   +1 more source

Maternal zinc alleviates tert-butyl hydroperoxide-induced mitochondrial oxidative stress on embryonic development involving the activation of Nrf2/PGC-1α pathway

Journal of Animal Science and Biotechnology, 2023
Background Mitochondrial dysfunction induced by excessive mitochondrial reactive oxygen species (ROS) damages embryonic development and leads to growth arrest.
Liang Huang, Wei Gao, Xuri He, Tong Yuan, Huaqi Zhang, Xiufen Zhang, Wenxuan Zheng, Qilin Wu, Ju Liu, Wence Wang, Lin Yang, Yongwen Zhu   +11 more
doaj   +1 more source

Encounter networks from collective mitochondrial dynamics support the emergence of effective mtDNA genomes in plant cells [PDF]

arXiv, 2021
Mitochondria in plant cells form strikingly dynamic populations of largely individual organelles. Each mitochondrion contains on average less than a full copy of the mitochondrial DNA (mtDNA) genome. Here, we asked whether mitochondrial dynamics may allow individual mitochondria to `collect' a full copy of the mtDNA genome over time, by facilitating ...
arxiv  

Detection, prevalence, and transmission of avian hematozoa in waterfowl at the Arctic/sub-Arctic interface: co-infections, viral interactions, and sources of variation [PDF]

, 2016
Background The epidemiology of avian hematozoa at high latitudes is still not well understood, particularly in sub-Arctic and Arctic habitats, where information is limited regarding seasonality and range of transmission, co-infection dynamics with ...
A Dzubin, A Perez-Rodriguez, AB Reeves, AM Fallis, AM Ramey, AM Ramey, AM Ramey, AM Ramey, Andrew M. Ramey, Brandt W. Meixell, BT McClintock, C Loiseau, C Van Hemert, CG Ludford, CM Herman, CT Atkinson, D Shutler, D Shutler, D Shutler, D Shutler, DE Sharp, DE Stallknecht, DG McCurdy, DI MacKenzie, DS Kaufman, E Arriero, EC Greiner, FE Cox, G Baldassarre, G Valkiūnas, G Valkiūnas, G Valkiūnas, GC White, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GF Bennett, GS Hunt, HA Hochbaum, HH Dill, I Zamora-Vilchis, IIIC van Riper, J Van Rooyen, J Walker, JA Royle, JA Runstadler, JD Brown, JG Dijk, JL Tella, Jonathan A. Runstadler, JR Anderson, KC Kerr, KL Durrant, KP Burnham, KS Oakgrove, LC Wilkinson, LZ Garamszegi, M Asghar, Mark S. Lindberg, Matthew M. Smith, MC Medeiros, MC Medeiros, MJ Petrula, MM Smith, NA Williams, O Hellgren, P Deviche, P Deviche, RA Khan, RE Ricklefs, RE Warner, RL Beaudoin, RM Stabler, S Lachish, S Lachish, S Merino, S Telfer, SM Carney, T Kuiken, Todd W. Arnold, TW Arnold, V Palinauskas, V Palinauskas, WD Hamilton, WL Hohman   +88 more
core   +4 more sources

Islands Promote Diversification of the Silvereye Species Complex: A Phylogenomic Analysis of a Great Speciator

Molecular Ecology, EarlyView.
ABSTRACT Geographic isolation plays a pivotal role in speciation by restricting gene flow between populations through distance or physical barriers. However, the speciation process is complex, influenced by the interplay between dispersal ability and geographic isolation, as seen in “great speciators” – bird species that simultaneously have broad ...
Andrea Estandía, Nilo Merino Recalde, Ashley T. Sendell‐Price, Dominique A. Potvin, William Goulding, Bruce C. Robertson, Sonya Clegg   +6 more
wiley   +1 more source

High Genetic Diversity among Breeding Red-Backed Shrikes Lanius collurio in the Western Palearctic

Diversity, 2019
Revealing the genetic population structure in abundant avian species is crucial for understanding speciation, conservation, and evolutionary history.
Liviu G. Pârâu, Roberto Carlos Frias-Soler, Michael Wink   +2 more
doaj   +1 more source

Comparative Phylogeography of Southern African Bird Species Suggests an Ephemeral Speciation Model

Diversity, 2021
Southern Africa is remarkably rich in avian species diversity; however, the evolutionary and biogeographic mechanisms responsible for that diversity are, in general, poorly understood, and this is particularly true with respect to the many species that ...
Gary Voelker, Guinevere O. U. Wogan, Jerry W. Huntley, Rauri C. K. Bowie   +3 more
doaj   +1 more source

East-West Genetic Differentiation in Musk Ducks (Biziura lobata) of Australia Suggests Late Pleistocene Divergence at the Nullarbor Plain [PDF]

, 2010
Musk Ducks (Biziura lobata) are endemic to Australia and occur as two geographically isolated populations separated by the Nullarbor Plain, a vast arid region in southern Australia. We studied genetic variation in Musk Duck populations at coarse (eastern
Afton, AD, Chesser, RT, Guay, Patrick-Jean, McCracken, KG, Mulder, RA, Paton, DC   +5 more
core  

Establishing and monitoring island breeding colonies to conserve an imperiled lagomorph

The Journal of Wildlife Management, Volume 89, Issue 5, July 2025.
Islands have a long history in species conservation and are often employed because they have fewer predators and competitors than mainland sites. Recently, 2 islands have been established as breeding colonies to support New England cottontail conservation. In the right circumstances, islands could be used to support the conservation of other lagomorphs
Thomas J. McGreevy Jr., Sozos Michaelides, Diana M. Beltrán, Wales Carter, Brian C. Tefft, Dylan Ferreira, Andrea M. Petrullo, Thomas P. Husband   +7 more
wiley   +1 more source

A new species of Muscicapa flycatcher from Sulawesi, Indonesia.

PLoS 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, Pamela C Rasmussen, Ding Li Yong, Dewi M Prawiradilaga, Dadang Dwi Putra, Philip D Round, Frank E Rheindt   +6 more
doaj   +1 more source