Search for conspicuous versus cryptic prey

Szczegóły
Opis

Tytuł:: Search for conspicuous versus cryptic prey
The painted redstart (Myioborus pictus L.) search rate of a cryptic versus conspicuous prey: a field test of optimal search models
Autorzy:: Jabłoński, Piotr G.
Współwytwórcy:: Polish Academy of Sciences. Institute of Ecology
Data publikacji:: 2003
Wydawca:: Polish Academy of Sciences. Institute of Ecology. Publishing Office
Słowa kluczowe:: foraging
search rates
Myioborus pictus
flush-pursue
Źródło:: MiIZ PAN, sygn. P.2840
http://katalog.pan.pl/webpac-bin/228bmiizPL/wgbroker.exe?new+-access+top+search+open+NR+kz2006002718
MiIZ PAN, call no. P.2840
Język:: angielski
Prawa:: Licencja Creative Commons Uznanie autorstwa 3.0 Polska
Creative Commons Attribution BY 3.0 PL license
Linki:: https://rcin.org.pl/dlibra/publication/edition/117560/content Link otwiera się w nowym oknie
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych
: Książka

Przejdź do źródła

Pages 385-388 : illustrations ; 27 cm

Strony 385-388 : ilustracje ; 27 cm

Models of optimal search rates predict that predators increase the search rate when availability of conspicuous prey increases relative to cryptic prey. I tested this prediction by comparing foraging hop rates by 19 Painted Redstarts (Myioborus pictus) - insectivorous birds in Arizona, USA. Redstarts often use flashy displays of open wings and tail to flush their prey and to subsequently chase the prey in air. Such flush-displays make the prey conspicuous and easy to detect. Hence, foraging mode affects relative availability of conspicuous versus cryptic prey: birds foraging with frequent flush-displays encounter conspicuous prey more often then birds foraging with infrequent flush-displays. As predicted, the hop rates during foraging with infrequent flush-displays were lower than hop rates during foraging with frequent displays.

Bibliographical references (page 388)

Bibliografia na stronie 388

Informacja

Search for conspicuous versus cryptic prey