Journal of Ethology
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The choice of foraging methods of the Brown Dipper,Cinclus pallasii (Aves: Cinclidae)
Journal of Ethology - Tập 8 - Trang 121-127 - 1990
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 d...... hiện toàn bộ
A Spatial memory task in the rainbow trout (Oncorhynchus mykiss)
Journal of Ethology - Tập 34 Số 1 - Trang 39-44 - 2016
Brood parasitism of rosefinches by cuckoos: suitable host or accidental parasitism?
Journal of Ethology - Tập 37 - Trang 83-92 - 2018
The arms race between avian brood parasites and their hosts is a classic model of co-evolution. Parasitic breeding by the common cuckoo (Cuculus canorus) in the nests of the Chinese beautiful rosefinch (Carpodacus davidianus) was found from May to July 2017 in Saihanba National Forest Park, Heibei, China. To understand whether the rosefinch is a suitable host species for the common cuckoo, egg rec...... hiện toàn bộ
Dive bout organization in the Chinstrap penguin at seal island, antarctica
Journal of Ethology - Tập 15 - Trang 9-15 - 1997
Diving behavior of 2 breeding Chinstrap penguins (Pygoscelis antarctica) was studied focusing first and primarily on dive bouts rather than dives themselves. Analysis of dive bout organization revealed (1) though there are differences between solitary dives and dive bouts in dive duration and dive depth, the first dives of dive bouts do not differ from solitary dives in the dive parameters, (2) me...... hiện toàn bộ
Innovative coconut-opening in a semi free-ranging rhesus monkey (Macaca mulatta): a case report on behavioral propensities
Journal of Ethology - Tập 29 - Trang 187-189 - 2010
The present case report provides a description of the emergence of an innovative, highly beneficial foraging behavior in a single rhesus monkey (Macaca mulatta) on the island of Cayo Santiago, Puerto Rico. Selectively choosing the island’s cement dock and nearby surrounding rocky terrain, our focal subject (ID: 84 J) opens coconuts using two types of underhand tosses: (1) a rolling motion to move ...... hiện toàn bộ
Natal dispersal of introduced Siberian chipmunks, Tamias sibiricus, in a suburban forest
Journal of Ethology - Tập 29 - Trang 23-29 - 2010
The Siberian chipmunk, Tamias sibiricus, was introduced into the suburban forest of Sénart in the late 1970s where it naturalised. Juvenile dispersal of this solitary ground-dwelling squirrel is not known, while it is an important component of the invasion process. From 2003 to 2007, mark–recapture techniques were used to determine how dispersal movements differed between year, cohort, sex and bod...... hiện toàn bộ
Mite dilemma: molting to acquire sexual maturity or not molting to ensure durability and dispersal ability in Phorytocarpais fimetorum (Parasitiformes; Gamasida; Parasitidae)
Journal of Ethology - Tập 41 - Trang 177-184 - 2023
Dispersal from birthplace is an effective strategy to cope up with unpredictable environmental change. In many animals, dispersal is carried out prior to mating and reproduction to avoid inbreeding. However, this also means that the dispersers must find mates in the new habitat. Phorytocarpais fimetorum (= former name Parasitus fimetorum) is a free-living predatory mite inhabiting animal dung and ...... hiện toàn bộ
Effects of a short period of isolation in adulthood on the aggressive behavior of dominant and subordinate male mice
Journal of Ethology - Tập 13 - Trang 175-180 - 1995
Male ddY mice were used to investigate the effect of a short period of isolation in adulthood on aggressive behavior. The relationship between the dominance status previous to isolation and the effect of isolation was investigated. The mice were kept in isolation for 3 weeks from 9 weeks of age, during which intruder tests were conducted once a week. They the went through an encounter test, in whi...... hiện toàn bộ
Size-mediated dominance and aggressive behavior of male Japanese fluvial sculpin Cottus pollux (Pisces: Cottidae) reduce nest-site abundance and mating success of conspecific rivals
Journal of Ethology - Tập 30 - Trang 239-245 - 2011
Despite growing evidence for plasticity in the mating patterns of nest-holding animals in relation to the changes in nest abundance, the effects of aggressive interaction by dominant males on nest availability for conspecific rivals remains unclear. To quantify the effects of male–male competition on nest-site choice and mating success of the male Japanese fluvial sculpin Cottus pollux, we conduct...... hiện toàn bộ
Tổng số: 903
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