Whistling Swan (Olor columbianus) in Massachusetts
نویسندگان
چکیده
منابع مشابه
Ventilatory and circulatory responses to hyperthermia in the mute swan (Cygnus olor).
Ventilatory parameters of mute swans were measured at thermoneutral conditions and during heat stress. Deep body temperature increased from 39.5 to 41.1 degrees C. Breathing frequency increased 29 times, compared to the thermoneutral condition. Tidal volume decreased to 18% of the pre-panting value, and the total ventilatory volume increased by 5.4 times. End-tidal PCO2 and PO2 values decreased...
متن کاملIsolation and genetic characterization of Toxoplasma gondii from mute swan (Cygnus olor) from the USA.
Little is known of the genetic diversity of Toxoplasma gondii circulating in wildlife. In the present study, antibodies to T. gondii were determined in serum samples from 632 mute swans (Cygnus olor) collected from different areas of the USA. Sera were tested by T. gondii modified agglutination test; 54 (8.5%) of 632 samples were seropositive with titers of 25 in 28 sera, 50 in 22 sera, 100 in ...
متن کاملThoughts before whistling.
Whistleblowing is a public alert by an insider of an organisation to a practice or concerning potential they observe in the organisation. This paper proposes that the risk, values at stake, timeliness and manner of complaint be considered before a whistle is blown. It also notes education and monitoring mechanisms.
متن کاملIsolation and genetic characterization of <i>Toxoplasma gondii</i> from mute swan (<i>Cygnus olor</i>) from the USA
Little is known of the genetic diversity of Toxoplasma gondii circulating in wildlife. In the present study, antibodies to T. gondii were determined in serum samples from 632 mute swans (Cygnus olor) collected from different areas of the USA. Sera were tested by T. gondii modified agglutination test; 54 (8.5%) of 632 samples were seropositive with titers of 25 in 28 sera, 50 in 22 sera, 100 in ...
متن کاملExperiments with Whistling Machines
This text describes a series of experiments performed with a machine capable of synthesizing human whistles and canary song. We call this device The Universal Whistling Machine (U.W.M). It senses the presence of living creatures in its vicinity and attracts them with a signature whistle. Given a response whistle, U.W.M. counters with its own composition, based on a time-frequency analysis of th...
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ژورنال
عنوان ژورنال: The Auk
سال: 1907
ISSN: 0004-8038,1938-4254
DOI: 10.2307/4070857