caa a22 4500 465762352 CHVBK 20180323111902.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF02350282 doi (NATIONALLICENCE)springer-10.1007/BF02350282 Eguchi Kazuhiro Department of Biology, Faculty of Science, Kyushu University, 812, Fukuoka, Japan aut The choice of foraging methods of the Brown Dipper, Cinclus pallasii (Aves: Cinclidae) [Elektronische Daten] [Kazuhiro Eguchi] The Brown Dipper,Cinclus pallasii, forages for large prey by diving deeply among submerged rocks, and for small prey in shallow water by wading and pecking on the bottom. Foraging by diving entailed a higher energy cost but resulted in taking larger prey than foraging by wading-and-pecking. Foraging by diving was seldom observed from May to October, but increased from December to April, when the dippers came into breeding condition and the proportion of large prey in the benthic fauna increased. During the breeding season, adult dippers fed themselves mainly by foraging by wading-and-pecking, whereas those feeding nestlings and fledglings foraged by diving. The foraging methods employed was determined by the individuals being fed and the abundance of the large prey. Foraging by diving may be advantageous for individuals provisioning their young because of the high gross intake rate, but may be less advantageous for the foragers themselves because of the high energy cost. Japan Ethological Society, 1990 Journal of Ethology Springer-Verlag 8/2(1990-12-01), 121-127 0289-0771 8:2<121 1990 8 10164 https://doi.org/10.1007/BF02350282 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02350282 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Eguchi Kazuhiro Department of Biology, Faculty of Science, Kyushu University, 812, Fukuoka, Japan aut NATIONALLICENCE 773 0- Journal of Ethology Springer-Verlag 8/2(1990-12-01), 121-127 0289-0771 8:2<121 1990 8 10164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer