Ethology

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Song Learning in Wild and Domesticated Strains of White‐Rumped Munia,Lonchura striata, Compared by Cross‐Fostering Procedures: Domestication Increases Song Variability by Decreasing Strain‐Specific Bias
Ethology - Tập 116 Số 5 - Trang 396-405 - 2010
Miki Takahasi, Kazuo Okanoya
AbstractSong diversity results from the interactions between natural selection, sexual selection, and individual learning. To understand song diversity, all three factors must be considered collectively, not separately. Bengalese Finches were domesticated about 250 yr ago. Their courtship songs have become different from their ancestor, the White‐rumped Munia. Bengalese Finches sing songs with com... hiện toàn bộ
Acquired Recognition of Predator Odour in the European Minnow (Phoxinus phoxinus)
Ethology - Tập 82 Số 3 - Trang 216-223 - 1989
Anne E. Magurran
AbstractNaive European minnows (Phoxinus phoxinus) do not show a fright reaction when they first encounter the odour of a natural predator (the pike: Esox lucius) or the odour of a non‐piscivorous exotic (tilapia: Tilapia mariae). A conditioned fright response to both these odours will however develop if minnows experience them in a potentially dangerous situation, for example, in conjunction with... hiện toàn bộ
Influenza Infection Neutralizes the Attractiveness of Male Odour to Female Mice (Mus musculus)
Ethology - Tập 104 Số 8 - Trang 685-694 - 1998
Dustin J. Penn, Greg Schneider, Krislea White, Patricia Slev, Wayne K. Potts
AbstractThis study aimed to determine if female house mice, Mus musculus domesticus, are able to assess a male's infection status from odour cues. We collected urine from male mice before, during, and after they were experimentally infected with influenza, a respiratory virus. Females spent more time investigating urine collected from males while they were uninfected than when they were infected. ... hiện toàn bộ
Mate Choice for Non‐siblings in Wild House Mice: Evidence from a Choice Test and a Reproductive Test
Ethology - Tập 88 Số 2 - Trang 99-108 - 1991
Sven Krackow, Bernhard Matuschak
AbstractTwo experiments were designed to test whether wild house mice discriminate between olfactory cues from different kin and, if so, whether given preferences would relate to actual reproductive decisions. Experimental animals were mice born to the offspring of wild‐caught house mice. Litter‐mates stayed together until 60 d of age and were then housed individually. In a choice test, animals we... hiện toàn bộ
Demonstration of Strength and Concealment of Weakness in Escalating Fights of Male Swordtails (Xiphophorus helleri)
Ethology - Tập 93 Số 4 - Trang 265-274 - 1993
Alexander Ribowski, Dierk Franck
AbstractIn the green swordtail (Xiphophorus helleri) confrontations between strange males regularly escalate to high levels of mutual Bites and Fin Grips, even between males differing greatly in size. The original expectation of early game theory models that the behaviours of the ultimate winners and losers are indistinguishable until shortly before the end of the fight could not be confirmed. A s... hiện toàn bộ
Decision Making and Assessment in the Fighting Behaviour of Nannacara anomala (Cichlidae, Pisces)
Ethology - Tập 72 Số 2 - Trang 143-153 - 1986
Magnus Enquist, Sven Jakobsson
AbstractPredictions from ESS‐theory concerning assessment of fighting ability and decision making are tested using a cichlid fish Nannacara anomala. Pairs with a pronounced difference in weight were allowed to interact. Fight duration increased when the difference in weight between the contestants decreased and the probability of an escalation from tail‐beating to mouth‐wrestling also increased wh... hiện toàn bộ
Assessment Strategies and the Effects of Fighting Experience on Future Contest Performance in the Green Anole (Anolis carolinensis)
Ethology - Tập 118 Số 9 - Trang 821-834 - 2012
Mark J. Garcia, Laura Paiva, Michelle Lennox, Boopathy Sivaraman, Stephanie Wong, Ryan L. Earley
AbstractSocial experiences can be useful sources of information for animals charged with making fitness‐related decisions. Fighting experience can alter an animal's perception of its fighting ability possibly leading to changes in future contest decisions, which may increase/decrease their probability of winning future contests. Winner and loser effects have been revealed in a wide array of animal... hiện toàn bộ
Mating System Variation in Woodhouse's Toad (Bufo woodhousii)
Ethology - Tập 83 Số 1 - Trang 60-68 - 1989
Brian K. Sullivan
AbstractSexual selection and mating‐system variation was studied in two disjunct populations of Woodhouse's toad (Bufo woodhousii) with dissimilar breeding‐period durations. In spite of the differences in breeding‐period duration, nightly operational sex ratios were roughly equivalent and strongly male biased in both populations, ranging from 0 to 0.5 in the population with a prolonged breeding pe... hiện toàn bộ
Orange Spots as a Visual Cue for Female Mate Choice in the Guppy (Poecilia reticulata)
Ethology - Tập 82 Số 4 - Trang 316-324 - 1989
Kevin D. Long, Anne E. Houde
AbstractPrevious studies have suggested that orange pigment in the color patterns of male guppies is a cue for female choice. This paper describes a manipulative experiment designed to test this hypothesis. The color patterns perceived by females were manipulated by varying the color of light used to illuminate the experimental aquaria. Orange light dramatically reduces the conspicuousness of oran... hiện toàn bộ
Threat Sensitivity in Bicolor Damselfish: Effects of Sociality and Body Size
Ethology - Tập 103 Số 5 - Trang 369-383 - 1997
Gene S. Helfman, Dana L. Winkelman
AbstractThreat sensitivity involves graded antipredator responses that reflect the degree of predatory threat encountered. Models of predatory Atlantic trumpetfish (Aulostomus maculatus) were presented to differently sized juvenile bicolor damselfish (Pomacentrus partitus) that occurred singly or in small groups to test for threat sensitivity. Bicolor damselfish displayed threat sensitivity by res... hiện toàn bộ
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