Results 11 to 20 of about 8,331 (261)

Ecoimmunity in Darwin's finches: invasive parasites trigger acquired immunity in the medium ground finch (Geospiza fortis). [PDF]

PLoS ONE, 2010
BACKGROUND: Invasive parasites are a major threat to island populations of animals. Darwin's finches of the Galápagos Islands are under attack by introduced pox virus (Poxvirus avium) and nest flies (Philornis downsi).
Sarah K Huber, Jeb P Owen, Jennifer A H Koop, Marisa O King, Peter R Grant, B Rosemary Grant, Dale H Clayton   +6 more
doaj   +1 more source

Male zebra finches exposed to lead (Pb) during development have reduced volume of song nuclei, altered sexual traits, and received less attention from females as adults

Ecotoxicology and Environmental Safety, 2021
Lead (Pb) is a pervasive global contaminant that interferes with sensitive windows for neurological development and causes oxidative damage to tissues. The effects of moderate and high exposure to Pb have been well-studied in birds, but whether low-level
Christopher G. Goodchild, Michelle L. Beck, Isaac VanDiest, Frankie N. Czesak, Samuel J. Lane, Kendra B. Sewall   +5 more
doaj   +1 more source

Auditory processing in the zebra finch midbrain: single unit responses and effect of rearing experience [PDF]

PeerJ, 2020
In birds the auditory system plays a key role in providing the sensory input used to discriminate between conspecific and heterospecific vocal signals. In those species that are known to learn their vocalizations, for example, songbirds, it is generally ...
Priscilla Logerot, Paul F. Smith, Martin Wild, M. Fabiana Kubke   +3 more
doaj   +2 more sources

Apparent effect of chronic Plasmodium infections on disease severity caused by experimental infections with Mycoplasma gallisepticum in house finches

International Journal for Parasitology: Parasites and Wildlife, 2017
An epidemic caused by a successful host jump of the bacterial pathogen Mycoplasma gallisepticum from poultry to house finches in the 1990s has by now spread across most of North America. M. gallisepticum causes severe conjunctivitis in house finches.
André A. Dhondt, Keila V. Dhondt, Sophie Nazeri   +2 more
doaj   +1 more source

A Social Relations Model for the Colonial Behavior of the Zebra Finch

Journal of Methods and Measurement in the Social Sciences, 2010
A social relations model was developed for 5 years of behavioral recordings from a captive colony of Zebrafinches (Taeniopygia guttata). A quantitative ethogram was applied, using one-zero focal animal sampling on an ethologically comprehensive checklist
Aurelio José Figueredo, Sally Gayle Olderbak, Vanya Alessandra Moreno   +2 more
doaj   +1 more source

Colour Cues That Are Not Directly Attached to the Body of Males Do Not Influence the Mate Choice of Zebra Finches. [PDF]

PLoS ONE, 2016
Mate choice decisions of female zebra finches are generally thought to rely on the assessment of male quality, which includes the specific ornamentation of males.
E Tobias Krause
doaj   +1 more source

The Field Metabolic Rate, Water Turnover, and Feeding and Drinking Behavior of a Small Avian Desert Granivore During a Summer Heatwave

Frontiers in Physiology, 2019
Global environmental change is leading to an increase in the frequency, intensity, and duration of extreme weather events, so effective environmental management requires an understanding not only of the physiological response of organisms to increased ...
Christine Elizabeth Cooper, Christine Elizabeth Cooper, Christine Elizabeth Cooper, Philip Carew Withers, Philip Carew Withers, Laura Leilani Hurley, Simon Charles Griffith, Simon Charles Griffith   +7 more
doaj   +1 more source

Timing matters: age-dependent impacts of the social environment and host selection on the avian gut microbiota

Microbiome, 2022
Background The establishment of the gut microbiota in early life is a critical process that influences the development and fitness of vertebrates. However, the relative influence of transmission from the early social environment and host selection ...
Öncü Maraci, Anna Antonatou-Papaioannou, Sebastian Jünemann, Kathrin Engel, Omar Castillo-Gutiérrez, Tobias Busche, Jörn Kalinowski, Barbara A. Caspers   +7 more
doaj   +1 more source

Comparative cytogenetic analysis of the germline-restricted chromosome in Fringillidae species (Passeriformes, Aves)

Вавиловский журнал генетики и селекции
An additional germline-restricted chromosome (GRC) has been found in the germline cells of all studied passerine bird species. It is eliminated from somatic cells during early embryogenesis and from spermatocytes after the first or second division of ...
L. P. Malinovskaya, K. V. Tishakova, P. M. Borodin   +2 more
doaj   +1 more source

Influence of human activity on gut microbiota and immune responses of Darwin’s finches in the Galápagos Islands

Avian Conservation and Ecology
Urbanization can influence many environmental factors that can affect the condition, immunity, and gut microbiota of birds. Over the past several decades, the Galápagos Islands of Ecuador have experienced increasing human activity, which has led to ...
Jada N Bygrave, Ashley C Love, Maxine Zylberberg, Alyssa Addesso, Sarah A Knutie   +4 more
doaj   +1 more source