The status of Plain Swift Apus unicolor in Morocco
نویسندگان
چکیده
منابع مشابه
Harmonic oscillatory orientation relative to the wind in nocturnal roosting flights of the swift Apus apus.
Swifts regularly spend the night flying at high altitude. From previous studies based on tracking radar observations, we know that they stay airborne during the night and prefer to orient themselves into the wind direction with an increased angular concentration with increasing wind speed. In this study, we investigated the orientation relative to the wind of individual swifts by frequency (dis...
متن کاملAnnual 10-Month Aerial Life Phase in the Common Swift Apus apus
The common swift (Apus apus) is adapted to an aerial lifestyle, where food and nest material are captured in the air. Observations have prompted scientists to hypothesize that swifts stay airborne for their entire non-breeding period [1, 2], including migration into sub-Saharan Africa [3-5]. It is mainly juvenile common swifts that occasionally roost in trees or buildings before autumn migratio...
متن کاملThe use of common swift (Apus apus), an aerial feeder bird, as a bioindicator of persistent organic microcontaminants.
SUMMARY In this study we investigated the accumulation of polychlorobiphenyls (PCBs), polychlorodibenzo-p-dioxins (PCDDs), polychlorodibenzofurans (PCDFs), and the chlorinated pesticides 1,1-dichloro-2,2-bis(4-chlorophenyl)-ethene (DDE), 1,1,1-trichloro-2,2-bis(4-chlorophenyl)-ethane (DDT), and hexachlorobenzene (HCB) in the breast muscle, liver, lung, heart and brain tissues of adult common sw...
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ژورنال
عنوان ژورنال: Bulletin of the African Bird Club
سال: 2002
ISSN: 1352-481X
DOI: 10.5962/p.309670