Wingbeat frequency and flap-pause ratio during natural migratory flight in thrushes
نویسندگان
چکیده
منابع مشابه
Biotelemetry of New World thrushes during migration: Physiology, energetics and orientation in the wild.
Billions of songbirds migrate between continents each year, but we have yet to obtain enough information on in-flight physiology and energetics to fully understand the migratory behavior of any one species. New World Catharus thrushes are common nocturnal migrants amenable to biotelemetry, allowing us to measure physiological parameters during migratory flight in the wild. Here, we review work ...
متن کاملUsutu Virus in Migratory Song Thrushes, Spain
Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 19, No. 7, July 2013 1173 positive by ELISA (Enzygnost AntiTBE/FSME Virus [IgG, IgM] Siemens, Erlangen, Germany) or PCR (online Technical Appendix). Since the 1980s, Sweden has experienced a 4-fold increase in human TBE incidence, with spread southwest (10). The emergence of the TBEV strain T2 closely related to isolates from Sweden may be a...
متن کاملAdjustments of wingbeat frequency and air speed to air density in free-flying migratory birds.
Birds adjust their flight behaviour to the physical properties of the air. Lift and drag, the two major properties in aerodynamics, are highly dependent on air density. With decreasing air density drag is reduced and lift per wingbeat decreases. According to flight mechanical theory, wingbeat frequency and air speed should increase with decreasing air density, i.e. increasing flight altitude. A...
متن کاملMaximum metabolic rate, relative lift, wingbeat frequency and stroke amplitude during tethered flight in the adult locust Locusta migratoria.
Flying insects achieve the highest mass-specific aerobic metabolic rates of all animals. However, few studies attempt to maximise the metabolic cost of flight and so many estimates could be sub-maximal, especially where insects have been tethered. To address this issue, oxygen consumption was measured during tethered flight in adult locusts Locusta migratoria, some of which had a weight attache...
متن کاملWingbeat frequency of birds in steady cruising flight: new data and improved predictions
Wingbeat frequencies of 15 species of birds, observed in the field in level, cruising flight were compared with predicted frequencies, calculated according to the formula derived from an earlier sample of 32 species. All of the data were collected by the author, using the same methods throughout. The new observations were predicted well for species with low wingbeat frequencies, but were undere...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Integrative and Comparative Biology
سال: 2008
ISSN: 1557-7023,1540-7063
DOI: 10.1093/icb/icn044