Results 1 to 10 of about 1,036 (131)

Morphological Characteristics of the Sperm of the Peregrine Falcon (Falco peregrinus) during the Reproductive Season [PDF]

open access: yesVeterinary Sciences, 2021
The morphological characteristics of different sperm cells (normal, abnormal, and immature) in the peregrine falcon during the reproductive season were analysed. We also classified the main sperm defects found in semen.
Andrea Oliveira   +3 more
doaj   +2 more sources

Optimization of Sperm Cryopreservation Protocol for Peregrine Falcon (Falco peregrinus) [PDF]

open access: yesAnimals, 2020
Sperm cryopreservation is a complex process that needs to be adapted to wild and domestic avian species to ensure proper efficiency. Because of its accessibility, the peregrine falcon may be used as a good model for studying other raptor species. To find
Beatriz Cardoso   +9 more
doaj   +2 more sources

Case Report: Multiple Cavernous Pericardial Lymphangioma (Pericardial Lymphangiomatosis) in a Captive Peregrine Falcon (Falco peregrinus brookei) [PDF]

open access: yesFrontiers in Veterinary Science, 2021
A 12-year-old female peregrine falcon (Falco peregrinus brookei) from a private raptor breeding facility that presented a good body condition, died suddenly without showing previous symptoms.
José Espinosa   +4 more
doaj   +2 more sources

Highly Pathogenic Avian Influenza Contributes to the Population Decline of the Peregrine Falcon (Falco peregrinus) in The Netherlands [PDF]

open access: yesViruses
Highly pathogenic avian influenza (HPAI) epizootics have caused repeated mass mortality events among wild birds. The effect of the infection is potentially detrimental for a variety of bird species, including the Peregrine Falcon (Falco peregrinus).
Valentina Caliendo   +6 more
doaj   +2 more sources

Whole‐genome survey reveals extensive variation in genetic diversity and inbreeding levels among peregrine falcon subspecies [PDF]

open access: yesEcology and Evolution, 2023
In efforts to prevent extinction, resource managers are often tasked with increasing genetic diversity in a population of concern to prevent inbreeding depression or improve adaptive potential in a changing environment.
Jeff A. Johnson   +13 more
doaj   +2 more sources

Diving-flight aerodynamics of a peregrine falcon (Falco peregrinus). [PDF]

open access: yesPLoS ONE, 2014
This study investigates the aerodynamics of the falcon Falco peregrinus while diving. During a dive peregrines can reach velocities of more than 320 km h⁻¹.
Benjamin Ponitz   +4 more
doaj   +2 more sources

Chromosome-level reference genome assembly of the gyrfalcon (Falco rusticolus) and population genomics offer insights into the falcon population in Mongolia [PDF]

open access: yesScientific Reports
The taxonomic classification of a falcon population found in the Mongolian Altai region in Asia has been heavily debated for two centuries and previous studies have been inconclusive, hindering a more informed conservation approach.
Farooq Omar Al-Ajli   +10 more
doaj   +2 more sources

Electrochemotherapy Intralesional Treatment in a Captive Peregrine Falcon (Falco peregrinus) with Dermal Squamous Cell Carcinoma [PDF]

open access: yesAnimals
Captive birds of prey often exceed their wild counterparts’ lifespan, as seen in bald eagles (Haliaeetus leucocephalus, ~20 years wild vs. ~40 years captive), golden eagles (Aquila chrysaetos, ~32 years wild vs.
Sara Peña   +5 more
doaj   +2 more sources

Avian wings can lengthen rather than shorten in response to increased migratory predation danger [PDF]

open access: yesEcology and Evolution, 2023
Increasing predation danger can select for safety‐enhancing modifications to prey morphology. Here, we document the multi‐decade wing lengthening of a Pacific flyway migrant, the western sandpiper (Calidris mauri), and contrast this with contemporaneous ...
Ronald C. Ydenberg   +3 more
doaj   +2 more sources

Experimental and Spectral Analysis of the Wake Velocity Effect in a 3D Falcon Prototype with Oscillating Feathers and Its Application in HAWT with Biomimetic Vortex Generators Using CFD [PDF]

open access: yesBiomimetics
The peregrine falcon, known as the fastest bird in the world, has been studied for its ability to stabilize during high-speed dives, a capability attributed to the configuration of its dorsal feathers.
Hector G. Parra   +3 more
doaj   +2 more sources

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