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Equine and Animal Cognition Reference Database

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Author Slagsvold, T.; Viljugrein, H. url  openurl
  Title Mate choice copying versus preference for actively displaying males by female pied flycatchers Type Journal Article
  Year 1999 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 57 Issue 3 Pages 679-686  
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  Call Number Serial 1810  
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Author White, D.J.; Galef Jr, B.G. url  openurl
  Title Mate choice copying and conspecific cueing in Japanese quail,Coturnix coturnix japonica Type Journal Article
  Year 1999 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 57 Issue 2 Pages 465-473  
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  Call Number Serial 1811  
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Author Powell, D.M. doi  openurl
  Title Preliminary evaluation of porcine zona pellucida (PZP) immunocontraception for behavioral effects in feral horses (Equus caballus) Type Journal Article
  Year 1999 Publication Journal of Applied Animal Welfare Science : JAAWS Abbreviated Journal J Appl Anim Welf Sci  
  Volume 2 Issue 4 Pages 321-335  
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  Abstract Successful management of captive populations of wild animals requires effective control of reproduction. Contraception is one tool for controlling reproduction of animals in zoos; however, the options available to the animal manager are limited. Contraceptives vary in efficacy, reversibility, and side effects, and thus may not be suitable for widespread use. One consideration when selecting a contraceptive is its potential for side effects on behavior, especially given the fact that reproduction plays such a prominent role in the biology of any species. To date, there have been few evaluations of contraceptives for behavioral effects, and those that have been conducted have focused on hormone-based contraceptives. This study sought to evaluate a novel method of population control, immunocontraception, for behavioral effects in a population of feral horses. Porcine zona pellucida (PZP) immunocontraception prevents fertilization of ova and does not alter normal hormone secretion patterns. It therefore should leave the animal behaviorally intact in terms of reproductive behavior. The study examined the behavior of 43 sexually mature mares on Assateague Island during the 1997 breeding season and, with help from Earthwatch volunteers, collected observations over a 3-month period. The study found no significant differences between treated and untreated mares in general activity budget, aggression given or received, and spatial relationships relative to the stallion. These preliminary findings indicate that PZP contraception seems to have no acute behavioral effects on the behavior of individuals. The study findings also suggest that PZP could be a desirable and effective management tool for captive species in which social behavior plays an integral role in group dynamics. Analyses of group level effects and population level effects are continuing.  
  Address Department of Zoological Research, National Zoological Park, Washington, DC 20008, USA. dpowell@nzp.si.edu  
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  ISSN 1088-8705 ISBN Medium  
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  Notes PMID:16363936 Approved no  
  Call Number Serial 1883  
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Author Giraldeau, L.A.; Beauchamp, G. openurl 
  Title Food exploitation: searching for the optimal joining policy Type Journal Article
  Year 1999 Publication Abbreviated Journal Trends In Ecology And Evolution  
  Volume 14 Issue 3 Pages 102-106  
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  Abstract Commonly invoked foraging advantages of group membership include increased mean food intake rates and/or reduced variance in foraging success. These foraging advantages rely on the occurrence of 'joining': feeding from food discovered or captured by others. Joining occurs in most social species but the assumptions underlying its analysis have been clarified only recently, giving rise to two classes of model: information-sharing and producer-scrounger models. Recent experimental evidence suggests that joining in ground-feeding birds might be best analysed as a producer-scrounger game, with some intriguing consequences for the spatial distribution of foragers and patch exploitation.  
  Address Dept of Biology, Concordia University, 1455 Ouest Blvd de Maisonneuve, Montreal, Quebec, Canada H3G 1M8  
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  ISSN 0169-5347 ISBN Medium  
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  Notes PMID:10322509 Approved no  
  Call Number Serial 2137  
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Author MacFadden, B.J.; Solounias, N.; Cerling, T.E. openurl 
  Title Ancient diets, ecology, and extinction of 5-million-year-Old horses from florida Type Journal Article
  Year 1999 Publication Abbreviated Journal Science  
  Volume 283 Issue 5403 Pages 824-827  
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  Abstract Six sympatric species of 5-million-year-old (late Hemphillian) horses from Florida existed during a time of major global change and extinction in terrestrial ecosystems. Traditionally, these horses were interpreted to have fed on abrasive grasses because of their high-crowned teeth. However, carbon isotopic and tooth microwear data indicate that these horses were not all C4 grazers but also included mixed feeders and C3 browsers. The late Hemphillian Florida sister species of the modern genus Equus was principally a browser, unlike the grazing diet of modern equids. Late Hemphillian horse extinctions in Florida involved two grazing and one browsing species.  
  Address Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA. Department of Anatomy, New York College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY 11568, USA. Department of Geology  
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  ISSN 1095-9203 ISBN Medium  
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  Notes PMID:9933161 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2652  
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Author Swanson, J.C. url  openurl
  Title What are animal science departments doing to address contemporary issues? Type Journal Article
  Year 1999 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 77 Issue 2 Pages 354-360  
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  Call Number Equine Behaviour @ team @ Serial 2937  
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Author Daly, M.; Wilson, M.I. url  openurl
  Title Human evolutionary psychology and animal behaviour Type Journal Article
  Year 1999 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 57 Issue 3 Pages 509-519  
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  Abstract Homo sapiensis increasingly being studied within the evolutionary (adaptationist, selectionist) framework favoured by animal behaviour researchers. There are various labels for such work, including evolutionary psychology, human behavioural ecology and human sociobiology. Collectively, we call these areas `human evolutionary psychology' (HEP) because their shared objective is an evolutionary understanding of human information processing and decision making. Sexual selection and sex differences have been especially prominent in recent HEP research, but many other topics have been addressed, including parent-offspring relations, reciprocity and exploitation, foraging strategies and spatial cognition. Many HEP researchers began their scientific careers in animal behaviour, and in many ways, HEP research is scarcely distinguishable from other animal behaviour research. Currently controversial issues in HEP, such as the explanation(s) for observed levels of heritable diversity, the kinds of data needed to test adaptationist hypotheses, and the characterization of a species-typical `environment of evolutionary adaptedness', are issues in animal behaviour as well. What gives HEP a distinct methodological flavour is that the research animal can talk, an ability that has both advantages and pitfalls for researchers. The proper use of self-reports and other verbal data in HEP might usefully become a subject of future research in its own right.  
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  Call Number Equine Behaviour @ team @ Serial 2909  
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Author Pinker, S. url  openurl
  Title COGNITION:Enhanced: Out of the Minds of Babes Type Journal Article
  Year 1999 Publication Science Abbreviated Journal Science  
  Volume 283 Issue 5398 Pages 40-41  
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  Notes 10.1126/science.283.5398.40 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2956  
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Author Hauser MD; Kralik J; Botto-Mahan C openurl 
  Title Problem solving and functional design features: experiments on cotton-top tamarins, Saguinus oedipus oedipus Type Journal Article
  Year 1999 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 57 Issue Pages 565  
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  Call Number Equine Behaviour @ team @ Serial 3065  
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Author Heiling, A.M.; Herberstein, M.E. doi  openurl
  Title The role of experience in web-building spiders (Araneidae) Type Journal Article
  Year 1999 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 2 Issue 3 Pages 171-177  
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  Abstract A typical feature of vertical orb-webs is the 'top/bottom' asymmetry, where the lower web region is larger than the upper web region. This asymmetry may improve prey capture success, because, sitting in the hub of the web, a spider can reach prey entangled below the hub faster than prey entangled in the area above the hub. While web asymmetry is known to vary intraspecifically, we tested if this variation also exists at the individual level and whether it is the result of experience, using two orb-web spider species, Argiope keyserlingi and Larinioides sclopetarius. The results reveal that experienced web-building spiders constructed more asymmetric webs than conspecifics deprived of any prior building experience over a period of several months. Experienced individuals invested more silk material into the web region below the hub, which covered a larger area. Moreover, web asymmetry was also influenced by previous prey capture experiences, as spiders increased the lower region of the web if it intercepted the most prey over a period of 6 days. Consequently, spiders may be able to use long-term web-building experience as well as short-term prey capture experience to build better traps. In contrast to previous views of spiders, experience can contribute to intraspecific as well as to individual variations in web design.  
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  Call Number Equine Behaviour @ team @ Serial 3154  
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