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Author (up) Briefer, E.F.; Mandel, R.; Maigrot, A.-L.; Briefer Freymond, S.; Bachmann, I.; Hillmann, E. url  doi
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  Title Perception of emotional valence in horse whinnies Type Journal Article
  Year 2017 Publication Frontiers in Zoology Abbreviated Journal  
  Volume 14 Issue 1 Pages 8  
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  Abstract Non-human animals often produce different types of vocalisations in negative and positive contexts (i.e. different valence), similar to humans, in which crying is associated with negative emotions and laughter is associated with positive ones. However, some types of vocalisations (e.g. contact calls, human speech) can be produced in both negative and positive contexts, and changes in valence are only accompanied by slight structural differences. Although such acoustically graded signals associated with opposite valence have been highlighted in some species, it is not known if conspecifics discriminate them, and if contagion of emotional valence occurs as a result. We tested whether domestic horses perceive, and are affected by, the emotional valence of whinnies produced by both familiar and unfamiliar conspecifics. We measured physiological and behavioural reactions to whinnies recorded during emotionally negative (social separation) and positive (social reunion) situations.  
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  ISSN 1742-9994 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Briefer2017 Serial 6049  
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Author (up) Karenina, K.; Giljov, A.; Ingram, J.; Rowntree, V.J.; Malashichev, Y. url  openurl
  Title Lateralization of mother–infant interactions in a diverse range of mammal species Type Journal Article
  Year 2017 Publication Nature Ecology & Evolution Abbreviated Journal  
  Volume 1 Issue Pages 0030 Ep -  
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  Call Number Equine Behaviour @ team @ Serial 6040  
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Author (up) Sebastiano, M.; Eens, M.; Angelier, F.; Pineau, K.; Chastel, O.; Costantini, D. url  doi
openurl 
  Title Corticosterone, inflammation, immune status and telomere length in frigatebird nestlings facing a severe herpesvirus infection Type Journal Article
  Year 2017 Publication Conservation Physiology Abbreviated Journal Conserv. Physiol.  
  Volume 5 Issue 1 Pages cow073-cow073  
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  Abstract Herpesvirus outbreaks are common in natural animal populations, but little is known about factors that favour the infection and its consequences for the organism. In this study, we examined the pathophysiological consequences of a disease probably attributable to herpesvirus infection for several markers of immune function, corticosterone, telomere length and inflammation. In addition, we assessed whether any markers used in this study might be associated with the occurrence of visible clinical signs of the disease and its impact on short-term survival perspectives. To address our questions, in spring 2015, we collected blood samples from nestlings of the magnificent frigatebird (Fregata magnificens) that were free of any clinical signs or showed visible signs of the disease. We found that the plasma concentration of haptoglobin was strongly associated with the infection status and could predict probabilities of survival. We also found that nestlings with clinical signs had lower baseline corticosterone concentrations and similar telomere length compared with healthy nestlings, whereas we did not find any association of the infection status with innate immune defenses or with nitric oxide concentration. Overall, our results suggest that the plasma concentration of haptoglobin might be a valuable tool to assess survival probabilities of frigatebird nestlings facing a herpesvirus outbreak.  
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  Notes 10.1093/conphys/cow073 Approved no  
  Call Number Equine Behaviour @ team @ Serial 6042  
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