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Author Giljov, A.; Karenina, K.
Title Differential roles of the right and left brain hemispheres in the social interactions of a free-ranging ungulate Type Journal Article
Year 2019 Publication Behavioural Processes Abbreviated Journal Behav. Process.
Volume (down) 168 Issue Pages 103959
Keywords Laterality; Hemispheric specialization; Brain asymmetry; Eye preference; Ungulate; Bovid
Abstract Despite the abundant empirical evidence on lateralized social behaviours, a clear understanding of the relative roles of two brain hemispheres in social processing is still lacking. This study investigated visual lateralization in social interactions of free-ranging European bison (Bison bonasus). The bison were more likely to display aggressive responses (such as fight and side hit), when they viewed the conspecific with the right visual field, implicating the left brain hemisphere. In contrast, the responses associated with positive social interactions (female-to-calf bonding, calf-to-female approach, suckling) or aggression inhibition (fight termination) occurred more likely when the left visual field was in use, indicating the right hemisphere advantage. The results do not support either assumptions of right-hemisphere dominance for control of various social functions or hypotheses about simple positive (approach) versus negative (withdrawal) distinction between the hemispheric roles. The discrepancy between the studies suggests that in animals, the relative roles of the hemispheres in social processing may be determined by a fine balance of emotions and motivations associated with the particular social reaction difficult to categorize for a human investigator. Our findings highlight the involvement of both brain hemispheres in the control of social behaviour.
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ISSN 0376-6357 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6587
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Author Sheriff, M.J.; Dantzer, B.; Delehanty, B.; Palme, R.; Boonstra, R.
Title Measuring stress in wildlife: techniques for quantifying glucocorticoids Type Journal Article
Year 2011 Publication Oecologia Abbreviated Journal
Volume (down) 166 Issue 4 Pages 869-887
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Abstract Stress responses play a key role in allowing animals to cope with change and challenge in the face of both environmental certainty and uncertainty. Measurement of glucocorticoid levels, key elements in the neuroendocrine stress axis, can give insight into an animal’s well-being and can aid understanding ecological and evolutionary processes as well as conservation and management issues. We give an overview of the four main biological samples that have been utilized [blood, saliva, excreta (feces and urine), and integumentary structures (hair and feathers)], their advantages and disadvantages for use with wildlife, and some of the background and pitfalls that users must consider in interpreting their results. The matrix of choice will depend on the nature of the study and of the species, on whether one is examining the impact of acute versus chronic stressors, and on the degree of invasiveness that is possible or desirable. In some cases, more than one matrix can be measured to achieve the same ends. All require a significant degree of expertise, sometimes in obtaining the sample and always in extracting and analyzing the glucocorticoid or its metabolites. Glucocorticoid measurement is proving to be a powerful integrator of environmental stressors and of an animal’s condition.
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ISSN 1432-1939 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Sheriff2011 Serial 6150
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Author John, E.R.; Chesler, P.; Bartlett, F.; Victor, I.
Title Observation Learning in Cats Type Journal Article
Year 1968 Publication Science Abbreviated Journal Science
Volume (down) 159 Issue 3822 Pages 1489-1491
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Abstract In two experiments cats acquired a stimulus-controlled approach or avoidance response by observational or conventional shaping procedures. Observer cats acquired the avoidance response (hurdle jumping in response to a buzzer stimulus) significantly faster and made fewer errors than cats that were conventionally trained. Observer cats acquired the approach response (lever pressing for food in response to a light stimulus) with significantly fewer errors than cats that were conventionally trained. In some cases, observer cats committed one or no errors while reaching criterion.
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Call Number Equine Behaviour @ team @ Serial 6422
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Author Amici, F.; Widdig, A.; Lehmann, J.; Majolo, B.
Title A meta-analysis of interindividual differences in innovation Type Journal Article
Year 2019 Publication Animal Behaviour Abbreviated Journal Anim. Behav.
Volume (down) 155 Issue Pages 257-268
Keywords age; bad competitor hypothesis; excess of energy hypothesis; innovation; interindividual differences; intraspecific variation; personality; rank; sex
Abstract The ability to innovate and the social transmission of innovations have played a central role in human evolution. However, innovation is also crucial for other animals, by allowing them to cope with novel socioecological challenges. Although innovation plays such a central role in animals' lives, we still do not know the conditions required for innovative behaviour to emerge. Here, we focused on interindividual differences in innovation by (1) extensively reviewing existing literature on innovative behaviour in animals and (2) quantitatively testing the different evolutionary hypotheses that have been proposed to explain interindividual variation in innovation propensity during foraging tasks. We ran a series of phylogenetically controlled mixed-effects meta-regression models to determine which hypotheses (if any) are supported by currently available empirical studies. Our analyses show that innovation is more common in individuals that are older and belong to the larger sex, but also in more neophilic and/or explorative individuals. Moreover, these effects change depending on the study setting (i.e. wild versus captive). Our results provide no clear support to the excess of energy or the bad competitor hypotheses and suggest that study setting and interindividual differences in traits related to personality are also important predictors of innovation.
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ISSN 0003-3472 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6589
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Author Shmidt Mech, L.D.
Title Wolf pack size and food acquisition Type Journal Article
Year 1997 Publication Am Nat Abbreviated Journal
Volume (down) 150 Issue Pages
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Call Number Equine Behaviour @ team @ Shmidt Mech1997 Serial 6482
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Author Zajonc, R.B.
Title Social Facilitation Type Journal Article
Year 1965 Publication Science Abbreviated Journal Science
Volume (down) 149 Issue 3681 Pages 269-274
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Abstract 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf
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Call Number Equine Behaviour @ team @ Serial 6565
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Author Briefer, E.F.; McElligott, A.G.
Title Rescued goats at a sanctuary display positive mood after former neglect Type Journal Article
Year 2013 Publication Appl Anim Behav Sci Abbreviated Journal
Volume (down) 146 Issue Pages
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Call Number Equine Behaviour @ team @ Briefer2013 Serial 6287
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Author Pérez-Barbería, F.J.; Gordon, I.J.
Title Gregariousness increases brain size in ungulates Type Journal Article
Year 2005 Publication Oecologia Abbreviated Journal
Volume (down) 145 Issue Pages
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Call Number Equine Behaviour @ team @ Pérez-Barbería2005 Serial 6258
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Author Ripple, W.J.; Beschta, R.L.
Title Trophic cascades in Yellowstone: The first 15 years after wolf reintroduction Type Journal Article
Year 2012 Publication Biol Conserv Abbreviated Journal
Volume (down) 145 Issue Pages
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Call Number Equine Behaviour @ team @ Ripple2012 Serial 6452
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Author Murray, L.M.A.; Byrne, K.; D’Eath, R.B.
Title Pair-bonding and companion recognition in domestic donkeys, <em>Equus asinus</em> Type Journal Article
Year 2013 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume (down) 143 Issue 1 Pages 67-74
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Abstract Pair and social bonding has been documented in various taxa, where pair formations are often described as being driven by kinship or sexual motivation. However, pair-bonding between unrelated individuals where sexual motivation is not a factor is not well documented. Many social relationships and pair-bonds between members of a dyad are facilitated by each individual's ability to recognise their partner using cues which are characteristic of that particular individual. The aims of this study were i) to investigate the existence of pair-bonding in domestic donkeys and ii) to determine whether members of a dyad could recognise their companion during a Y-maze recognition test. Subjects were 55 unrelated donkeys (38 gelded males, 15 females) in seven groups of mixed or same sex, comprising 4?14 individuals. Spatial proximity (nearest-neighbour) was observed three times a day over a 22-day period. Using a simulation approach based on observed data to generate randomised nearest-neighbour matrices, the statistical significance of social relationships was estimated. Of these, 42 (79.2%) were involved in significantly (p<0.05) non-random nearest-neighbour relationships, most of which were reciprocal pair relationships. Based on the spatial data, 24 of the donkeys which had shown significant reciprocal nearest-neighbour preferences for one individual (companion) were then used in a Y-maze recognition test in which they were presented with a choice of their companion and either a familiar donkey from the same group or an unfamiliar donkey from a different group. Donkeys? spatial location in the Y-maze demonstrated a preference for their companion versus familiar (one sample Wilcoxon signed rank test, W=239, p=0.002) or unfamiliar donkeys (W=222, p=0.041). These results verify anecdotal evidence from donkey handlers that donkeys often form pair-bonds, and show that reciprocal social preference and recognition are the basis of these. Pair-bond formation and companionship among donkeys have potential implications for their management, husbandry and welfare.
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Publisher Elsevier Place of Publication Editor
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ISSN 0168-1591 ISBN Medium
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Notes doi: 10.1016/j.applanim.2012.11.005 Approved no
Call Number Equine Behaviour @ team @ Serial 6149
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