Results 121 to 130 of about 37,686 (233)

ECTOPARASITES AND GASTROINTESTINAL HELMINTH OF DOMESTIC PIGEONS IN AWKA, SOUTHEASTERN NIGERIA

The Bioscientist, 2023
The keeping of pigeons as pets and its consumption for protein, is a potential source of zoonotic diseases. The study of ectoparasites and gastrointestinal helminth of domestic pigeons (Columba livia domestica) in Awka, was conducted between November ...
C. C Nwadike, C. C Nwadike, D. O Agbata, J. J Okeke, O. A Okeke, I.O Nnatuanya, P. I Afoemezie, N. P Udeh, K. C Irikannu   +8 more
doaj  

Oxidative costs of migration: infections as an added burden

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
There is increasing evidence that over‐production of reactive species (RS) constitutes a significant physiological cost for migrating birds. The current view entails that RS during migration originate primarily from increased metabolic activity associated with prolonged flights and refueling.
Michael Tobler, Dennis Hasselquist, Arne Hegemann, Lucía Jiménez‐ Gallardo, Javier Pérez‐ Tris, Carolina Remacha   +5 more
wiley   +1 more source

Inter‐ and intra‐individual variation in the feather coloration of American crows

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
Avian feathers are remarkably diverse in both form and function. Coloration is among the most studied feature of feathers, but we know relatively little about melanin‐based black coloration. Despite many crows (Corvus sp.) and other corvids having black feathers that appear uniform to human perception, their feather coloration could play an important ...
Jessica L. Yorzinski, Anne B. Clark
wiley   +1 more source

New Records of Ectoparasites and Other Epifauna from Scalopus aquaticus and Blarina carolinensis in Arkansas [PDF]

, 2014
Connior, M. B., Durden, L. A., McAllister, C. T.   +2 more
core   +3 more sources

On the Heterochrony and Evolution of Oral Structures in Phyllopharyngean Ciliates (Protista: Ciliophora)

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 2, Page 91-106, March 2026.
Ontogenetic sequences in phyllopharyngean ciliates. ABSTRACT Heterochronic shifts in developmental sequences of unicellular organisms are rarely considered as mechanisms behind their morphological evolution. Among eukaryotic microbes, ciliates represent a key model group, exhibiting diverse morphologies and developmental trajectories.
Klára Bukovinská, Peter Vďačný
wiley   +1 more source

An RNA interference biopesticide reduces reproduction of the honey bee parasite Varroa destructor by down‐regulating embryo development pathways

Pest Management Science, Volume 82, Issue 3, Page 2694-2707, March 2026.
Varroa destructor mites exposed to dsRNA specific in sequence to a V. destructor calmodulin gene significantly effected gene expression of adult female mites sampled 5 days after entering a honey bee brood cell to reproduce. Significantly down‐regulated genes included Calmodulin and were associated with calcium ion binding and embryo developmental ...
Zoe E Smeele, Rose A McGruddy, James W Baty, Brian Manley, Kenneth Narva, Emma De Neef, Eric RL Gordon, Upendra K Devisetty, Katie Youngs, Antoine Felden, Philip J Lester   +10 more
wiley   +1 more source

A Study on the Ectoparasites and Hemoparasites Infections in Rodents from the Kilwa district, Tanzania

Journal of Applied Veterinary Science and Technology
Background: Ectoparasites play a significant role in facilitating the transmission of disease pathogens and parasites that affect animals and humans. Purpose:  This study aims to assess the prevalence of ectoparasites and hemoparasites in rodents from ...
Pilato Waya, Martin Martin, Christopher Sabuni   +2 more
doaj   +1 more source

Ectoparasite-borne Bartonella and Rickettsia in Chilean populations of Rattus rattus: prevalence, genetic diversity and environmental associations

Parasitology
Rattus rattus is a known reservoir of zoonotic pathogens, including Bartonella and Rickettsia, transmitted by ectoparasites such as fleas, mites, lice and ticks.
Elaine Monalize Serafim de Castro, Ananda Müller, Ricardo Gutiérrez, María Carolina Silva-de la Fuente, Sebastián Muñoz-Leal, Mario Espinoza-Carniglia, Lucila Moreno   +6 more
doaj   +1 more source

Effect of Feathers as Nest Insulation on Incubation Behavior and Reproductive Performance of Tree Swallows (\u3cem\u3eTachycineta bicolor\u3c/em\u3e) [PDF]

, 1995
Many species of birds line their nests with feathers, presumably because of the insulative qualities of feathers and because feathers may act as a barrier between nest parasites and nestlings.
Bosman, Ruth M, Faro, Christine A, Houtteman, Stephen G, Kluisza, Timothy S, Lombardo, Michael P   +4 more
core   +1 more source

Stunning Intricacies of RNA Editing Complexes RECC, RESC, and REH2C: Functional Organization, Developmental Regulation, and Evolutionary History in Kinetoplastid Protists

WIREs RNA, Volume 17, Issue 2, March/April 2026.
U‐indel RNA editing targets mRNA:gRNA duplexes through three key complexes that collectively govern assembly, specificity, catalysis, and developmental regulation. Modern tools, including artificial intelligence, analyze the organization, dynamics, and evolution of the remarkable holo‐editosome, opening new avenues in RNA biology and therapy.
Suzanne M. McDermott, Julius Lukeš, Laurie K. Read, Reza Salavati, Achim Schnaufer, Sara L. Zimmer, Jason Carnes, Alasdair Ivens, Naghmeh Poorinmohammad, Nicholas J. Savill, Dave Speijer, Ken Stuart, Kristína Záhonová, Poorya Mirzavand Borujeni, Zihao Chen, Cody Goode, Sunil Kumar Sharma, Lars O’Hara, Jorge Cruz‐Reyes   +18 more
wiley   +1 more source