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Author Lancet, Y.; Dukas, R. url  doi
openurl 
  Title Socially Influenced Behaviour and Learning in Locusts Type Journal Article
  Year 2012 Publication Ethology Abbreviated Journal  
  Volume 118 Issue (up) 3 Pages 302-310  
  Keywords  
  Abstract As a part of our research on the evolution of social learning in insects, we examined socially influenced behaviour and social learning in desert locust (Schistocerca gregaria) nymphs and adults. In the nymphs, the only positive effect we documented was an increased tendency to feed while in the company of another locust than alone. The adults, on the other hand, showed significant preference for joining others (local enhancement) in both the contexts of feeding and egg laying. Neither nymphs nor adults, however, showed social learning. Our preliminary analyses pointed to locusts as a likely insect that might possess social learning. Our research, when taken together with research on phase-shifts and swarm/marching behaviour of gregarious locusts, suggests that the behavioural dynamics of gregarious locusts may make local enhancement but not social learning beneficial. The possible difference we documented between the nymphs and adults could enable us to further explore the proximate and ultimate mechanisms that underlie socially influenced behaviour.  
  Address  
  Corporate Author Thesis  
  Publisher Blackwell Publishing Ltd Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1439-0310 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5593  
Permanent link to this record
 

 
Author Mettke-Hofmann, C.; Winkler, H.; Leisler, B. url  doi
openurl 
  Title The Significance of Ecological Factors for Exploration and Neophobia in Parrots Type Journal Article
  Year 2002 Publication Ethology Abbreviated Journal  
  Volume 108 Issue (up) 3 Pages 249-272  
  Keywords  
  Abstract Exploratory behaviour plays an important role in most animals for gathering information about their environment. If it constitutes an adaptation to different environmental conditions exploratory behaviour should differ between species. This has been tested with several hypotheses. Sixty-one parrot species (Psittacidae) from eight tribes with different diets and habitat preferences were investigated in aviaries. Two tests were carried out. First, a novel object (wooden ring) in the familiar aviary was presented on two test days in the exploration test. Latencies until first contact with the object and the duration of exploration were recorded. Secondly, in the neophobia test, novel objects were placed beside the feeding dish and latencies until first food intake were recorded. The exploration and neophobia data were related to 12 (13) ecological variables using multiple regression analyses. Phylogenetic relationships were considered. Species that inhabit complex habitats, such as forest edges, or that feed on buds or species from islands showed the shortest latencies in the exploration test. In contrast, long latencies were related to a diet including a great amount of seeds and/or flowers. The longest duration of exploration occurred in species eating nuts or originating from islands, whereas short durations were related to feeding on seeds. Neophobia was positively related to a diet consisting of insects, and negatively to a diet of leaves. There was no relationship between measures of exploration and neophobia. Exploration and neophobia seem to be tightly related to the ecology of a species.  
  Address  
  Corporate Author Thesis  
  Publisher Blackwell Wissenschafts-Verlag Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1439-0310 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5617  
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Author Carson, K.; Wood-Gush, D.G.M. url  doi
openurl 
  Title Equine behaviour: I. A review of the literature on social and dam--Foal behaviour Type Journal Article
  Year 1983 Publication Applied Animal Ethology Abbreviated Journal  
  Volume 10 Issue (up) 3 Pages 165-178  
  Keywords  
  Abstract In most cases, the social organisation of each of the seven species of Equidae existing today outside captivity is either territorial or non-territorial. The striking differences found between these two types of organisation in the social grouping and bonds, mating behaviour, leadership and dominance hierarchies of the animals are examined. It is thought that the non-territorial species show a less primitive type of organisation than the territorial animals. Infant Equidae are precocious animals and are able to follow their dams soon after birth. They stay close by their dams and travel with the herd from an early age and are therefore classified as “followers”, in contrast to the species which have a period of hiding after birth. Dams recognise their foals immediately after birth, whereas it takes 2 or 3 days for a foal to form an attachment to its dam. Being in close proximity to their dams, foals are able to nurse frequently and, unless artificially weaned, a foal will nurse until its dam foals again. Foals start to graze during their first week and as they grow older they spend more time grazing and less time nursing and resting. It is normal for foals to be corprophagic until one month old, and this provides them with bacteria essential for the digestion of fibre. Play behaviour is solitary in very young foals, but after 4 weeks of age, foals play together, with male foals playing more than females and showing more aggressive, fighting movements in play.  
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  Series Volume Series Issue Edition  
  ISSN 0304-3762 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6671  
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Author Ellis, L. url  doi
openurl 
  Title Dominance and reproductive success among nonhuman animals: A cross-species comparison Type Journal Article
  Year 1995 Publication Ethology and Sociobiology Abbreviated Journal Ethol. a. Sociob.  
  Volume 16 Issue (up) 4 Pages 257-333  
  Keywords  
  Abstract This paper updates and extends Dewsbury's (1982) review of the literature on dominance and reproductive success (RS). The findings from approximately 700 studies are included, over two thirds of which were unavailable to Dewsbury. In order to give a highly condensed and yet meaningful overview, the main findings are represented in four tables, one for male nonprimates, one for female nonprimates, one for male primates, and one for female primates. In the tables for males, findings are analyzed in terms of six different indicators of RS, and in the tables for females, in terms of eight RS indicators. Outside the primate order, evidence largely supported the hypothesis that high-ranking males enjoy greater RS than do subordinate males. For females, studies are more evenly divided between those supporting the hypothesis that high rank and RS are positively correlated and those indicating no significant rank-RS relationship. This may reflect both the lower saliency of hierarchical relationships among females, as well as the lower variability in RS among females, relative to males. Among primates, a complex picture has emerged, especially in the case of males. Much of the complexity appears due to the importance of age and seniority in affecting dominance rank. Also, in some primate species, female preferences for sex partners seem to have little to do with the male's dominance rank, at least at the time mating takes place. Nevertheless, the majority of studies suggest that high- to middle-ranking males have at least a slight lifetime reproductive advantage over the lowest ranking males.  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 722  
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Author Podos, J. url  openurl
  Title Early perspectives on the evolution of behavior: Charles Otis Whitman and Oskar Heinroth Type Journal Article
  Year 1964 Publication Ethology Ecology & Evolution (EEE) Abbreviated Journal Ethol Ecol Evol  
  Volume 6 Issue (up) 4 Pages 467-480  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2293  
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Author Bourjade, M.; Moulinot, M.; Henry, S.; Richard-Yris, M.-A. Hausberger.M doi  openurl
  Title Could Adults be Used to Improve Social Skills of Young Horses, Equus caballus? Type Journal Article
  Year 2008 Publication Ethology Abbreviated Journal Ethology  
  Volume 50 Issue (up) 4 Pages 408-417  
  Keywords horse • social influence • young-adult interaction • social development  
  Abstract We investigated the effects of the introduction of foreign adults on the behavior of young horses. First, we observed the behavior of 1- and 2-year-old domestic horses housed in same-age and same-sex groups (a standard housing system, but different from a natural situation). Then, two same-sex adults were introduced into each experimental group. Observations made before, during and after an introduction indicated that young horses reared in homogeneous groups of young had different behaviors compared to other domestic horses reared under more socially natural conditions. After the introduction of adults, young horses expressed new behaviors, preferential social associations emerged, positive social behavior increased and agonistic interactions decreased. These results have important implications both for understanding the influence that adults may have on the behavior of young horses, and in terms of husbandry, indicating the importance of keeping young horses with adults, although further studies are still necessary. © 2008 Wiley Periodicals, Inc. Dev Psychobiol 50: 408-417, 2008.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4800  
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Author Bourjade, M.; Thierry, B.; Maumy, M.; Petit, O. doi  openurl
  Title Decision-making in Przewalski horses (Equus ferus przewalskii) is driven by the ecological contexts of collective movements Type Journal Article
  Year 2009 Publication Ethology Abbreviated Journal Ethology  
  Volume 115 Issue (up) 4 Pages 321-330  
  Keywords  
  Abstract We addressed decision-making processes in the collective movements of

two groups of Przewalski horses (Equus ferus przewalskii) living in a semi

free-ranging population. We investigated whether different patterns of

group movement are related to certain ecological contexts (habitat use

and group activity) and analysed the possible decision-making processes

involved. We found two distinct patterns; ‘single-bout’ and ‘multiplebout’

movements occurred in both study groups. The movements were

defined by the occurrence of collective stops between bouts and differed

by their duration, distance covered and ecological context. For both

movements, we found that a preliminary period involving several horses

occurred before departure. In single-bout movements, all group members

rapidly joined the first moving horse, independently of the preliminary

period. In multiple-bout movements, however, the joining

process was longer; in particular when the number of decision-makers

and their pre-departure behaviour before departure increased. Multiplebout

movements were more often used by horses to switch habitats and

activities. This observation demonstrates that the horses need more time

to resolve motivational conflicts before these departures. We conclude

that decision-making in Przewalski horses is based on a shared consensus

process driven by ecological determinants.
 
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4801  
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Author Fucikova, E.; Drent, P. J.; Smits,N.; van Oers, K. doi  openurl
  Title Handling Stress as a Measurement of Personality in Great Tit Nestlings (Parus major) Type Journal Article
  Year 2009 Publication Ethology Abbreviated Journal Ethology  
  Volume 115 Issue (up) 4 Pages 366 - 374  
  Keywords  
  Abstract nterest in personality is growing in a wide range of disciplines, but only in a few systems it is possible to assess the survival value of personality. Field studies looking at the relationship between personality and survival value early in life are greatly hampered by the fact that personality can at present only be assessed after individuals become independent from their parents. In passerines, for example, this is often after a period of intensive selection for the survival on fledglings. The main aim of this study is therefore to develop a method to measure personality before this period of selection. For this purpose, we developed the handling stress (HS) test. We measured HS in 14-d-old great tit nestlings by counting the number of breast movements (breath rate) in four subsequent 15-s bouts for 1 min; before and after they were socially isolated from their siblings for 15 min. To calculate the repeatability of HS, we repeated the test 6 mo later. To assess the relationship between HS and exploratory behaviour, we correlated the outcome of both tests. We ran tests both on birds of lines selected for extreme personality and on wild birds from a natural population. We found that birds selected for fast exploration reacted more to HS compared with birds selected for slow exploration and that HS was repeatable in different life phases. We confirmed this by finding an increase in the HS with increasing exploratory scores in wild birds. These results show that we can use the HS test as a measurement of personality, making it a potential tool for studying the relationship between personality and survival value early in life.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5072  
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Author Clucas, B.; Marzluff, J.M.; Mackovjak, D.; Palmquist, I. url  doi
openurl 
  Title Do American Crows Pay Attention to Human Gaze and Facial Expressions? Type Journal Article
  Year 2013 Publication Ethology Abbreviated Journal Ethology  
  Volume 119 Issue (up) 4 Pages 296-302  
  Keywords  
  Abstract Interactions between species can lead to the evolution of interspecific communication. Non-verbal communication by humans, both intentional and unintentional, can be interpreted by other species. We tested whether American crows (Corvus brachyrhynchos) were sensitive to human facial features under field conditions by comparing flight initiation distances and urgency of escape behavior to human approaches varying in eye contact and facial expression. We first examined whether crows distinguish between an approaching human who is directly gazing at them and a human approaching them with an averted gaze. In a second experiment, we tested whether crows differentiate a smiling from scowling human approaching them with direct or averted gaze. In the first experiment, we found that crows fled sooner and more urgently when humans were directly gazing at them. Similarly, in the second experiment, crows responded sooner to a direct vs. averted gaze; however, they did not react differently to varying human facial expressions. We suggest that crows use human gaze as a reliable visual cue compared with facial expressions when making decisions about responding to approaching humans. This is the first study to show that a wild corvid species changes its behavior based on human gaze, possibly representing an adaptation to living in human-dominated urban areas and suggesting crows might perceive human intention by this visual cue.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1439-0310 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5670  
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Author Meriggi, A.; Dagradi, V.; Dondina, O.; Perversi, M.; Milanesi, P.; Lombardini, M.; Raviglione, S.; Repossi, A. url  doi
openurl 
  Title Short-term responses of wolf feeding habits to changes of wild and domestic ungulate abundance in Northern Italy Type Journal Article
  Year 2014 Publication Ethology Ecology & Evolution Abbreviated Journal Ethology Ecology & Evolution  
  Volume 27 Issue (up) 4 Pages 389-411  
  Keywords  
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  Address  
  Corporate Author Thesis  
  Publisher Taylor & Francis Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0394-9370 ISBN Medium  
  Area Expedition Conference  
  Notes doi: 10.1080/03949370.2014.986768 Approved no  
  Call Number Equine Behaviour @ team @ Serial 6688  
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