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Author Clayton, N.S.; Dickinson, A. doi  openurl
  Title Episodic-like memory during cache recovery by scrub jays Type Journal Article
  Year 1998 Publication Abbreviated Journal Nature  
  Volume 395 Issue 6699 Pages 272-274  
  Keywords  
  Abstract The recollection of past experiences allows us to recall what a particular event was, and where and when it occurred1,2, a form of memory that is thought to be unique to humans3. It is known, however, that food-storing birds remember the spatial location4, 5, 6 and contents6, 7, 8, 9 of their caches. Furthermore, food-storing animals adapt their caching and recovery strategies to the perishability of food stores10, 11, 12, 13, which suggests that they are sensitive to temporal factors. Here we show that scrub jays (Aphelocoma coerulescens) remember 'when' food items are stored by allowing them to recover perishable 'wax worms' (wax-moth larvae) and non-perishable peanuts which they had previously cached in visuospatially distinct sites. Jays searched preferentially for fresh wax worms, their favoured food, when allowed to recover them shortly after caching. However, they rapidly learned to avoid searching for worms after a longer interval during which the worms had decayed. The recovery preference of jays demonstrates memory of where and when particular food items were cached, thereby fulfilling the behavioural criteria for episodic-like memory in non-human animals.  
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  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1038/26216 Approved no  
  Call Number (down) Equine Behaviour @ team @ Serial 4788  
Permanent link to this record
 

 
Author Reboreda, J.C.; Clayton, N.S.; Kacelnik, A. url  openurl
  Title Species and sex differences in hippocampus size in parasitic and non-parasitic cowbirds Type Journal Article
  Year 1996 Publication Neuroreport Abbreviated Journal Neuroreport  
  Volume 7 Issue 2 Pages 505-508  
  Keywords Animals; Birds/*physiology; Female; Hippocampus/*anatomy & histology; Male; Nesting Behavior/*physiology; Sex Characteristics; Species Specificity; Telencephalon/anatomy & histology  
  Abstract To test the hypothesis that selection for spatial abilities which require birds to locate and to return accurately to host nests has produced an enlarged hippocampus in brood parasites, three species of cowbird were compared. In shiny cowbirds, females search for host nests without the assistance of the male; in screaming cowbirds, males and females inspect hosts' nests together; in bay-winged cowbirds, neither sex searches because this species is not a brood parasite. As predicted, the two parasitic species had a relatively larger hippocampus than the non-parasitic species. There were no sex differences in relative hippocampus size in screaming or bay-winged cowbirds, but female shiny cowbirds had a larger hippocampus than the male.  
  Address Instituto de Biologia y Medicina Experimental-CONICET, Buenos Aires, Argentina  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0959-4965 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:8730816 Approved no  
  Call Number (down) Equine Behaviour @ team @ Serial 4798  
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Author Van Horik, J.; Clayton, N.; Emery, N. openurl 
  Title Oxford Handbook of Comparative Evolutionary Psychology Type Book Whole
  Year Publication Abbreviated Journal  
  Volume Issue Pages  
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  Publisher Oxford University Press Place of Publication New York Editor Vonk, J.; Shackelford, T.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number (down) Equine Behaviour @ team @ Serial 6403  
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Author Amodio, P.; Boeckle, M.; Schnell, A.K.; Ostojic, L.; Fiorito, G.; Clayton, N.S. url  doi
openurl 
  Title Grow Smart and Die Young: Why Did Cephalopods Evolve Intelligence? Type Journal Article
  Year 2018 Publication Trends in Ecology & Evolution Abbreviated Journal Trends. Ecol. Evol.  
  Volume Issue Pages  
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  Abstract Intelligence in large-brained vertebrates might have evolved through independent, yet similar processes based on comparable socioecological pressures and slow life histories. This convergent evolutionary route, however, cannot explain why cephalopods developed large brains and flexible behavioural repertoires: cephalopods have fast life histories and live in simple social environments. Here, we suggest that the loss of the external shell in cephalopods (i) caused a dramatic increase in predatory pressure, which in turn prevented the emergence of slow life histories, and (ii) allowed the exploitation of novel challenging niches, thus favouring the emergence of intelligence. By highlighting convergent and divergent aspects between cephalopods and large-brained vertebrates we illustrate how the evolution of intelligence might not be constrained to a single evolutionary route.  
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  Corporate Author Thesis  
  Publisher Elsevier Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0169-5347 ISBN Medium  
  Area Expedition Conference  
  Notes doi: 10.1016/j.tree.2018.10.010 Approved no  
  Call Number (down) Equine Behaviour @ team @ Serial 6508  
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