منابع مشابه
Diving-Flight Aerodynamics of a Peregrine Falcon (Falco peregrinus)
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. Unfortunately, in freely roaming falcons, these high velocities prohibit a precise determination of flight parameters such as velocity and acceleration as well as body shape and wing contour. Therefore, individual F. peregrinus were trained...
متن کاملPeregrine Falcon Semen: a Quantitative and Qualitative Examination
Collection frequencies and certain characteristics of Peregrine Falcon (Falco peregrinus) semen were investigated using semen from a falcon trained to copulate on a specially designed hat. Semen volume increased significantly when collections were increased from two to three times/day, but cells/ejaculate decreased. No significant difference in number cells/ejaculate or cells/microliter was det...
متن کاملModeling and Control of the Peregrine Falcon Population
Peregrine falcons were recently removed from the endangered species list and there is a desire to harvest these birds for sport. The US Fish and Wildlife Service currently allows minimal harvesting in parts of the country. However, the question is how many can be extracted from the population before the future population will go into decline. My research utilizes a population projection matrix ...
متن کاملScreening of decabromodiphenyl ethane (dbdpe) in lake sediment, marine sediment and peregrine falcon eggs
In general terms, BFRs are a controversial group of chemicals. Flame retardants protect lives by increasing fire safety, but at the same time, several of the BFRs are regarded as concerning environmental contaminants. These include polybrominated diphenyl ethers (PBDEs), tetrabromobisphenol A (TBBPA) and hexabromocyclododecane (HBCD). The reasons for concern about BFRs are observed or suspected...
متن کاملDetection of Borrelia burgdorferi in a Sick Peregrine Falcon ( Falco peregrinus ) – A Case Report
The importance of Lyme borreliosis, a tick-borne disease caused by the bacterium Borrelia (B.) burgdorferi sensu lato, is constantly increasing. It is the most frequent arthropod-borne disease in the northern hemisphere today. Numerous studies about the prevalence of B. burgdorferi in ticks have been published. A review summarising 1,186 abstracts on epidemiological studies of the tick I. ricin...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1991
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay5395