Möchten Sie über diese Zeitschrift informiert bleiben? Klicken Sie bitte auf die Buttons, um unsere Alerts zu abonnieren.
Möchten Sie über diese Zeitschrift informiert bleiben? Klicken Sie bitte auf die Buttons, um unsere Alerts zu abonnieren.
A Stochastic Analysis of the Display Behavior of the Red-Breasted Merganser (Mergus Serrator)
in BehaviourSearch for other papers by William Van Der Kloot in
Current site
Google Scholar
Search for other papers by Mary Jane Morse in
Current site
Google Scholar
Abstract
1. We have used the methods of stochastic analysis to investigate the timing of two actions - the Head-flick and the Salute-curtsy - in the display of the Red-breasted merganser duck. 2. The intervals between Head-flicks by individual birds cannot be distinguished from a random, exponential time series, in which the occurrence of each event is independent of preceding events. 3. The intervals between Salute-curtsies are unlikely to be distributed exponentially. There is a deficit of short intervals and an excess of intervals between events of about 250 frames durtion. The Salute-curtsies do not occur independently of one another. 4. Variance-time curves and power spectra show that there is a marked periodic component in the timing of Salute-curtsies, but periodicity is not detectable in the performance of Head-flicks. 5. Cross-correlations analysis shows that there is a strong interaction between the occurrence of Salute-curtsies by the different birds in the group and between the performance of Head-flicks and Salute-curtsies. There is no detectable relation between the performance of Head-flicks. 6. We conclude that there is a strong tendency for birds to perform series of two or three Salute-curtsies with an interval of about 250 frames between each action. There is also a strong interaction between the performance of Salute-curtsies by the different birds. There is some tendency for Head-flicks to occur at greater than chance frequency during a period just before the performance of a Salute-curtsy. The remainder of the Head-flicks appear to be distributed randomly.
Kauf
Sofortzugang erwerben (PDF-Download und unbegrenzter Online-Zugang):
Institutszugang
Melden Sie sich mit Open Athens, Shibboleth oder Ihren institutionellen Anmeldedaten an.
Persönliche Anmeldung
Melden Sie sich mit Ihrem brill.com-Konto an
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 298 | 40 | 1 |
| Gesamttextansichten | 31 | 0 | 0 |
| PDF-Downloads | 10 | 0 | 0 |
A Stochastic Analysis of the Display Behavior of the Red-Breasted Merganser (Mergus Serrator)
in BehaviourSearch for other papers by William Van Der Kloot in
Current site
Google Scholar
PubMed
Search for other papers by Mary Jane Morse in
Current site
Google Scholar
PubMed
Abstract
1. We have used the methods of stochastic analysis to investigate the timing of two actions - the Head-flick and the Salute-curtsy - in the display of the Red-breasted merganser duck. 2. The intervals between Head-flicks by individual birds cannot be distinguished from a random, exponential time series, in which the occurrence of each event is independent of preceding events. 3. The intervals between Salute-curtsies are unlikely to be distributed exponentially. There is a deficit of short intervals and an excess of intervals between events of about 250 frames durtion. The Salute-curtsies do not occur independently of one another. 4. Variance-time curves and power spectra show that there is a marked periodic component in the timing of Salute-curtsies, but periodicity is not detectable in the performance of Head-flicks. 5. Cross-correlations analysis shows that there is a strong interaction between the occurrence of Salute-curtsies by the different birds in the group and between the performance of Head-flicks and Salute-curtsies. There is no detectable relation between the performance of Head-flicks. 6. We conclude that there is a strong tendency for birds to perform series of two or three Salute-curtsies with an interval of about 250 frames between each action. There is also a strong interaction between the performance of Salute-curtsies by the different birds. There is some tendency for Head-flicks to occur at greater than chance frequency during a period just before the performance of a Salute-curtsy. The remainder of the Head-flicks appear to be distributed randomly.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 298 | 40 | 1 |
| Gesamttextansichten | 31 | 0 | 0 |
| PDF-Downloads | 10 | 0 | 0 |
