Results 31 to 40 of about 266 (115)

The Southernmost Known Population of the Monito Del Monte, Dromiciops gliroides

Ecology and Evolution, Volume 16, Issue 3, March 2026.
A range extension for a relict south American marsupial. ABSTRACT The monito del monte (genus Dromiciops) is a small arboreal marsupial endemic to the temperate rainforests of southern South America, and the sole extant representative of the order Microbiotheria. This lineage, considered a sister group of Australian marsupials, is of great evolutionary,
Roberto F. Nespolo, Paula Herrera, Isidora Camus, Juan Pablo Bravo, Alex D. González, Carla Toledo, Diego Vera, Francisco E. Fontúrbel, Julian F. Quintero‐Galvis   +8 more
wiley   +1 more source

Three decades of western sandpiper stopover dynamics during northward migration on the Pacific Coast of North America, 1992–2022

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
Shorebirds typically spend more time fueling and refueling during migration than they spend in actual flight, and consequently their stopover ecology has important implications for fitness and conservation. We examined spatial variation and long‐term changes in stopover duration of radio‐tagged western sandpipers Calidris mauri over three decades on ...
Nils Warnock, Scott A. Flemming, Sydney E. Bliss, Mary Anne Bishop, John Y. Takekawa, Brett K. Sandercock, Sarah E. Warnock, Mark C. Drever   +7 more
wiley   +1 more source

Balancing moult, migration, and breeding in a long‐lived partially migrant raptor

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
Moult, breeding, and migration are the three major life‐history events in the annual cycle of birds. All are energetically demanding processes that rarely overlap. In large raptors such as the Egyptian vulture Neophron percnopterus, completing a full moult may take more than one year, requiring birds to balance this process with other life‐cycle events.
Iñigo Zuberogoitia, Jabi Zabala, Evan R. Buechley, Mike McGrady, Antoni Margalida, José Enrique Martínez, Volen Arkumarev, José María Abad Gómez‐Pantoja, Thijs van Overveld, Marina García‐Alfonso, Andras Kovacs, Jon Morant, Manuel De la Riva, José Luis Rivas, Pilar Oliva‐Vidal, José María Martínez, Hristo Peshev, Richard Porter, Vladimir Dobrev, José Antonio Donázar   +19 more
wiley   +1 more source

Cost of migration increased during an outbreak of highly pathogenic avian influenza virus

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
Migration is thought to be costly such that challenges faced during migration likely affect how birds migrate through direct selection on migratory behavior. Survival throughout the annual cycle and conditions that affect the survival costs of migration are therefore critical to our understanding of the causes and consequences of migration.
Neil Paprocki, Jeff Kidd, Courtney J. Conway   +2 more
wiley   +1 more source

Tui Na Acupressure Modulates Treg Immunosuppression via FoxP3/mTORC1 Signalling in ALS Mice

Immunology, Volume 177, Issue 3, Page 481-500, March 2026.
The proposed mechanism by which Tui Na acupressure improves motor and cognitive dysfunction in ALS mice by activating the FoxP3/mTORC1 pathway. ABSTRACT Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease driven by neuroinflammation, where regulatory T cell (Treg) dysfunction exacerbates immune imbalance.
Jie Han, Xi Xu, Yan Zhao, Yao Xiao, Fei Huang, Jing Zhou, Hai Huang, Guiqian Wang   +7 more
wiley   +1 more source

A pilot study of maternal vitamin D status and its association with breast milk and infant gut metabolites

Physiological Reports, Volume 14, Issue 5, March 2026.
Vitamin D status in our pilot study was associated with higher levels of certain amino acids and hexanoic acid in breast milk and metabolites in infant stool samples. Abstract Human milk contains multiple bioactive components, many of which are influenced by the mother's nutritional status.
Alyssa S. Gutierrez, Katherine E. Chetta, Santosh Thapa, Sigmund J. Haidacher, Kathleen M. Hoch, John E. Baatz, Anthony M. Haag, Numan Oezguen, Thomas D. Horvath, Carol L. Wagner, Melinda A. Engevik   +10 more
wiley   +1 more source

Quick-quick-slow: the foxtrot migration and dynamic non-breeding range of the Arctic raptor

Abstract Advances in tracking technologies have revealed the diverse migration patterns of birds, which are critical for range mapping and population estimation. While population trends are typically estimated in breeding ranges where birds remain stationary, trends are commonly assessed in non-breeding ranges for species that breed in ...
Ivan Pokrovsky, Teja Curk, Andreas Dietz, Ivan Fufachev, Olga Kulikova, Sebastian Rößler, Martin Wikelski   +6 more
openaire   +1 more source

TDF_CAM: A method for estimating stable isotope trophic discrimination in wild populations. [PDF]

Ecol Evol, 2023
Johnson DL, Henderson MT, Franke A, Swan GJF, McDonald RA, Anderson DL, Booms TL, Williams CT.   +7 more
europepmc   +1 more source

Predator-prey interactions of raptors in an arctic environment

, 2004
This thesis concerns the predator-prey interactions of three raptor species in a Swedish arctic community: the gyrfalcon (Falco rusticolus), the rough-legged buzzard (Buteo lagopus) and the golden eagle (Aquila chrysaetos). The gyrfalcon behaved like a highly specialised ptarmigan (Lagopus spp.) predator.
openaire   +1 more source

Severe feather deformation in greater white-fronted goose (Anser alb. albifrons) goslings during hot summer period on Kolguev Island 2016. [PDF]

Eur J Wildl Res, 2022
Kruckenberg H, Müskens GJDM, Glazov P, Moonen S, Morkunas J, Loshchagina J, Buij R.   +6 more
europepmc   +1 more source