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Author Rogers, L.J. url  doi
openurl 
  Title Evolution of hemispheric specialization: advantages and disadvantages Type Journal Article
  Year 2000 Publication Brain and Language Abbreviated Journal Brain Lang  
  Volume 73 Issue 2 Pages 236-253  
  Keywords Aggression/psychology; Animals; Behavior, Animal/physiology; Brain/*physiology; Chickens/physiology; *Evolution; Feeding Behavior/physiology; Functional Laterality/*physiology; Visual Fields/physiology; Visual Perception/physiology  
  Abstract Lateralization of the brain appeared early in evolution and many of its features appear to have been retained, possibly even in humans. We now have a considerable amount of information on the different forms of lateralization in a number of species, and the commonalities of these are discussed, but there has been relatively little investigation of the advantages of being lateralized. This article reports new findings on the differences between lateralized and nonlateralized chicks. The lateralized chicks were exposed to light for 24 h on day 19 of incubation, a treatment known to lead to lateralization of a number of visually guided responses, and the nonlateralized chicks were incubated in the dark. When they were feeding, the lateralized chicks were found to detect a stimulus resembling a raptor with shorter latency than nonlateralized chicks. This difference was not a nonspecific effect caused by the light-exposed chicks being more distressed by the stimulus. Instead, it appears to be a genuine advantage conferred by having a lateralized brain. It is suggested that having a lateralized brain allows dual attention to the tasks of feeding (right eye and left hemisphere) and vigilance for predators (left eye and right hemisphere). Nonlateralized chicks appear to perform these dual tasks less efficiently than lateralized ones. Reference is made to other species in discussing these results.  
  Address Division of Zoology, University of New England, Armidale, New South Wales, Australia. lrogers@metz.une.edu.au  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0093-934X ISBN Medium  
  Area Expedition Conference  
  Notes PMID:10856176 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4621  
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Author Mohr, E.; Witte, E.; Voss, B. openurl 
  Title Heart rate variability as stress indicator Type Journal Article
  Year 2000 Publication Archiv fur Tierzucht Abbreviated Journal  
  Volume 43 Issue 3 Spec. Iss. Pages 171-176  
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  Notes Cited By (since 1996): 2; Export Date: 21 October 2008 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4534  
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Author Connor, R.C.; Wells, R.S.; Mann, J.; Read,A.J. isbn  openurl
  Title The bottlenose dolphin: Social relationships in a fission-fusion society. Type Book Chapter
  Year 2000 Publication Cetacean Societies: Field Studies of Dolphins and Whales. Abbreviated Journal  
  Volume Issue Pages 91-126  
  Keywords cetacean social behavior, male alliance formation, most cetacean species, platanistid river dolphins, cetacean sociality, strategies and social bonds, female cetaceans, many cetologists, most mysticetes, sperm whale calves, passive fishing nets, variant whistles, historical whaling records, cetacean systematics, stable matrilineal groups, peak calving season, suction cup tags, mutualistic groups, cetacean vocalizations, focal animal studies, larger odontocetes, predictive signaling, individual cetaceans, sperm whale clicks, resident killer whales  
  Abstract Book Description

“Part review, part testament to extraordinary dedication, and part call to get involved, Cetacean Societies highlights the achievements of behavioral ecologists inspired by the challenges of cetaceans and committed to the exploration of a new world.”-from the preface by Richard Wrangham

Long-lived, slow to reproduce, and often hidden beneath the water's surface, whales and dolphins (cetaceans) have remained elusive subjects for scientific study even though they have fascinated humans for centuries. Until recently, much of what we knew about cetaceans came from commercial sources such as whalers and trainers for dolphin acts. Innovative research methods and persistent efforts, however, have begun to penetrate the depths to reveal tantalizing glimpses of the lives of these mammals in their natural habitats.

Cetacean Societies presents the first comprehensive synthesis and review of these new studies. Groups of chapters focus on the history of cetacean behavioral research and methodology; state-of-the-art reviews of information on four of the most-studied species: bottlenose dolphins, killer whales, sperm whales, and humpback whales; and summaries of major topics, including group living, male and female reproductive strategies, communication, and conservation drawn from comparative research on a wide range of species.

Written by some of the world's leading cetacean scientists, this landmark volume will benefit not just students of cetology but also researchers in other areas of behavioral and conservation ecology as well as anyone with a serious interest in the world of whales and dolphins.

Contributors are Robin Baird, Phillip Clapham, Jenny Christal, Richard Connor, Janet Mann, Andrew Read, Randall Reeves, Amy Samuels, Peter Tyack, Linda Weilgart, Hal Whitehead, Randall S. Wells, and Richard Wrangham.
 
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  Publisher University of Chicago Press Place of Publication Chicago Editor Mann, J.;Connor, R.C.; Tyack, P.L.;Whitehead, H.  
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  ISSN ISBN 978-0226503417 Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4427  
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Author Dyer, F. C. openurl 
  Title Individual cognition and group movement: insights from social insects. Type Book Chapter
  Year 2000 Publication Group Movement in Social Primates and Other Animals: Patterns, Processes, and Cognitive Implications. Abbreviated Journal  
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  Publisher University of Chicago Press Place of Publication Chicago Editor Garber, P.;Boinski, S.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4425  
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Author Müller, A. E.; Thalmann, U. url  openurl
  Title Origin and evolution of primate social organisation: a reconstruction Type Journal Article
  Year 2000 Publication Biological Reviews Abbreviated Journal  
  Volume 75 Issue Pages 405-435  
  Keywords social organisation; evolution; ancestral primate; strepsirhines; nocturnal prosimians; lemurs; lorisiforms; dispersed multi-male system; promiscuity.  
  Abstract Abstract

The evolution and origin of primate social organisation has attracted the attention of many researchers, and a solitary pattern, believed to be present in most nocturnal prosimians, has been generally considered as the most primitive system. Nocturnal prosimians are in fact mostly seen alone during their nightly activities and therefore termed “solitary foragers”, but that does not mean that they are not social. Moreover, designating their social organisation as “solitary”, implies that their way of life is uniform in all species. It has, however, emerged over the last decades that all of them exhibit not only some kind of social network but also that those networks differ among species. There is a need to classify these social networks in the same manner as with group-living (gregarious) animals if we wish to link up the different forms of primate social organisation with ecological, morphological or phylogenetic variables. In this review, we establish a basic classification based on spatial relations and sociality in order to describe and cope properly with the social organisation patterns of the different species of nocturnal prosimians and other mammals that do not forage in cohesive groups. In attempting to trace the ancestral pattern of primate social organisation, the Malagasy mouse and dwarf lemurs and the Afro-Asian bushbabies and lorises are of special interest because they are thought to approach the ancestral conditions most closely. These species have generally been believed to exhibit a dispersed harem system as their pattern of social organisation (“dispersed” means that individuals forage solitarily but exhibit a social network). Therefore, the ancestral pattern of primate social organisation was inferred to be a dispersed harem. In fact, new field data on cheirogaleids combined with a review of patterns of social organisation in strepsirhines (lemurs, bushbabies and lorises) revealed that they exhibit either dispersed multi-male systems or dispersed monogamy rather than a dispersed harem system. Therefore, the concept of a dispersed harem system as the ancestral condition of primate social organisation can no longer be supported. In combination with data on social organisation patterns in “primitive” placentals and marsupials, and in monotremes, it is in fact most probable that promiscuity is the ancestral pattern for mammalian social organisation. Subsequently, a dispersed multi-male system derived from promiscuity should be regarded as the ancestral condition for primates. We further suggest that the gregarious patterns of social organisation in Aotus and Avahi, and the dispersed form in Tarsius evolved from the gregarious patterns of diurnal primates rather than from the dispersed nocturnal type. It is consequently proposed that, in addition to Aotus and Tarsius, Avahi is also secondarily nocturnal.
 
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  Call Number Equine Behaviour @ team @ Serial 4257  
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Author Le Pendu, Y.; Guilhem, C.; Briedermann, L.; Maublanc, M.-L.; Gerard, J.-F. url  openurl
  Title Interactions and associations between age and sex classes in mouflon sheep (Ovis gmelini) during winter Type Journal Article
  Year 2000 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 52 Issue 2-3 Pages 97-107  
  Keywords Group composition; Interactive behaviour; Sexual segregation; Social organisation; Ungulate; Wild sheep  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4248  
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Author Mrabet, O.; Es-Salah, Z.; Telhiq, A.; Aubert, A.; Liege, S.; Choulli, K.; Neveu, P.J. openurl 
  Title Influence of gender and behavioural lateralisation on two exploratory models of anxiety in C3H mice Type Journal Article
  Year 2000 Publication Abbreviated Journal Behav Processes  
  Volume 52 Issue 1 Pages 35-42  
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  Abstract Behavioural lateralisation, which has been postulated to be an individual personality trait, is related to the activity of various physiological systems including the immune system. As lateralisation has been related to anxiety, which is known to influence immune reactivity, it can be hypothesized that the relation between lateralisation and immune reactivity involves individual behavioural patterns as they appear in exploratory-based anxiety models. In order to answer this question, a behavioural investigation focussing on exploratory activity was undertaken in male and female C3H mice previously selected for their paw preference. The observations were performed using two generic paradigms: elevated plus-maze and open field. Exploratory behaviour in the open field, but not in the plus-maze, was influenced by the interactive effect of gender and behavioural lateralisation. A significant difference between male and female mice was found in left-pawed but not in right-pawed nor ambidextrous animals, left-pawed female mice displaying the less exploratory behaviours. These results provide a first evidence of inter-individual variations in exploratory behaviours involving interaction between gender and lateralisation.  
  Address U.F.R. des Sciences Biologiques et Pharmaceutiques, Departement de Biologie, Faculte des Sciences, Universite Ibn Tofail, Kenitra, Morocco  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0376-6357 ISBN Medium  
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  Notes PMID:11011107 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4149  
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Author Weiss, A.; King, J.E.; Figueredo, A.J. openurl 
  Title The heritability of personality factors in chimpanzees (Pan troglodytes) Type Journal Article
  Year 2000 Publication Behavior Genetics Abbreviated Journal Behav Genet  
  Volume 30 Issue 3 Pages 213-221  
  Keywords Animals; Female; Humans; Male; Models, Genetic; Pan troglodytes/*genetics; Personality/*genetics; Social Environment  
  Abstract Human personality and behavior genetic studies have resulted in a growing consensus that five heritable factors account for most variance in human personality. Prior research showed that chimpanzee personality is composed of a dominance-related factor and five human-like factors--Surgency, Dependability, Emotional Stability, Agreeableness, and Openness. Genetic, shared zoo, and nonshared environmental variance components of the six factors were estimated by regressing squared phenotypic differences of all possible pairs of chimpanzees onto 1 – Rij, where Rij equals the degree of relationship and a variable indicating whether the pair was housed in the same zoo. Dominance showed significant narrow-sense heritability. Shared zoo effects accounted for only a negligible proportion of the variance for all factors.  
  Address Department of Psychology, University of Arizona, Tucson 85721, USA. aweiss@u.arizona.edu  
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  Series Volume Series Issue Edition  
  ISSN 0001-8244 ISBN Medium  
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  Notes PMID:11105395 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4143  
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Author Sapolsky, R.M.; Romero, L.M.; Munck, A.U. url  openurl
  Title How Do Glucocorticoids Influence Stress Responses? Integrating Permissive, Suppressive, Stimulatory, and Preparative Actions Type Journal Article
  Year 2000 Publication Endocr Rev Abbreviated Journal  
  Volume 21 Issue 1 Pages 55-89  
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  Abstract The secretion of glucocorticoids (GCs) is a classic endocrine response to stress. Despite that, it remains controversial as to what purpose GCs serve at such times. One view, stretching back to the time of Hans Selye, posits that GCs help mediate the ongoing or pending stress response, either via basal levels of GCs permitting other facets of the stress response to emerge efficaciously, and/or by stress levels of GCs actively stimulating the stress response. In contrast, a revisionist viewpoint posits that GCs suppress the stress response, preventing it from being pathologically overactivated. In this review, we consider recent findings regarding GC action and, based on them, generate criteria for determining whether a particular GC action permits, stimulates, or suppresses an ongoing stress-response or, as an additional category, is preparative for a subsequent stressor. We apply these GC actions to the realms of cardiovascular function, fluid volume and hemorrhage, immunity and inflammation, metabolism, neurobiology, and reproductive physiology. We find that GC actions fall into markedly different categories, depending on the physiological endpoint in question, with evidence for mediating effects in some cases, and suppressive or preparative in others. We then attempt to assimilate these heterogeneous GC actions into a physiological whole.  
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  Notes 10.1210/er.21.1.55 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4070  
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Author Madigan, J.E.; Whittemore, J. openurl 
  Title The role of the equine practitioner in disasters Type Journal Article
  Year 2000 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc  
  Volume 216 Issue 8 Pages 1238-1239  
  Keywords *Animal Husbandry/education; *Animal Welfare; Animals; Disaster Planning; *Horses; *Natural Disasters; United States; *Veterinary Medicine  
  Abstract  
  Address Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis 95616, USA  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-1488 ISBN Medium  
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  Notes PMID:10767959 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4055  
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