Avian Visual Signaling
Avian Visual Signaling - Related Videos
01:31
Determining the Minimum Inhibitory Concentration of Enrofloxacin Against Avian Pathogenic E. coli
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2026
Begin with a suspension of avian pathogenic E. coli or APEC in growth media.APEC is a Gram-negative bacterium that infects poultry by entering through the respiratory tract.After breaching the mucosal layer, APEC adhere to epithelial cells, multiply locally, and disrupt the epithelial barrier to enter the bloodstream. The bacteria then spread to multiple organs, causing systemic infection.Add an equal volume of the bacterial suspension to each well of a multi-well plate containing increasing...
08:40
Quantitative Analysis of Cancer Metastasis using an Avian Embryo Model
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Cited by 90 •
2011
Using quantitative PCR, we demonstrate how the well-established chick CAM model can be used to quantitatively analyze the metastasis of human tumor cells to distant organs.
12:21
Generating Recombinant Avian Herpesvirus Vectors with CRISPR/Cas9 Gene Editing
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Cited by 13 •
2019
Herpesvirus of turkeys (HVT) is widely used as a vector platform for the generation of recombinant vaccines against a number of avian diseases. This article describes a simple and rapid approach for the generation of recombinant HVT-vectored vaccines using an integrated NHEJ-CRISPR/Cas9 and Cre-Lox system.
07:33
Visualization of Vascular Ca2+ Signaling Triggered by Paracrine Derived ROS
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Cited by 10 •
2011
An efficient method to gain insights into visualizing the paracrine-derived ROS induction of endothelial Ca2+ signaling is described. This method takes advantage of measuring paracrine derived ROS triggered Ca2+ mobilization in vascular endothelial cells in a co-culture model.
09:36
Visualization of Mitochondrial DNA Replication in Individual Cells by EdU Signal Amplification
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Cited by 11 •
2010
We developed a sensitive technique to label newly synthesized mitochondrial DNA (mtDNA) in individual cells in order to study mtDNA biogenesis. The technique combines the incorporation of EdU together with a tyramide signal amplification (TSA) protocol to visualize mtDNA replication within subcellular compartments of neurons.
FAQs
Pigments shape visible signals by absorbing selected wavelengths, so some portions of incident light do not return to the observer. Nanostructured feathers create color differently: their physical organization can scatter light or produce interference effects. This distinction helps explain why similar-looking colors may have different optical origins, which matters when interpreting feather appearance and its biological meaning.
The received signal can change as a bird moves or as an observer views it from another angle. These changes alter how light interacts with colored or structured feathers, affecting the appearance of the signal. Consequently, posture and motion are not merely behavioral details; they help determine what information another bird actually perceives.
A signal depends on the interaction between feather properties, available light, and the observer’s perception. When the light environment changes, the wavelengths reaching and leaving the plumage can change as well, potentially altering apparent color or contrast. This makes light conditions important for studying recognition, camouflage, reproductive communication, and adaptation.
A useful analysis first identifies whether a signal depends mainly on wavelength-selective absorption, scattering, interference, or a combination of these effects. It then considers how viewing angle and movement modify the received light, before relating that optical information to perception and behavior. This sequence links physical structure with communication outcomes without treating appearance as purely visual decoration.
These signals provide a framework for examining mate choice, species recognition, territorial information, and responses to danger. They also help researchers study camouflage, because the same optical properties that make a pattern conspicuous in one setting may reduce detectability in another. Comparing these outcomes reveals how visual traits can support different behavioral functions.
The topic connects biological communication with optics by showing how absorption, scattering, interference, perception, and viewing geometry influence observed signals. It can also inform research on optical materials, because nanostructured feathers demonstrate how physical organization affects appearance. Studying birds therefore provides both subject-specific insight into behavior and broader context for light-based material design.