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Author Vidya, T.N.C.; Sukumar, R. url  openurl
  Title Social and reproductive behaviour in elephants Type Journal Article
  Year 2005 Publication Current Science (Bangalore) Abbreviated Journal Curr Sci  
  Volume 89 Issue 7 Pages 1200-1207  
  Keywords Acoustic communication; dispersal; Elephas maximus; Loxodonta africana; musth; social organization  
  Abstract We present a review of studies on elephant social and reproductive behaviour. While the social organization of the African savannah elephant (Loxodonta africana africana) has been intensively studied,that of the African forest elephant (Loxodonta africana cyclotis) and the Asian elephant (Elephas maximus) are poorly understood. Noninvasive molecular methods are useful in combination with behavioural data in understanding social organization and dispersal strategies. The ecological determinants of social organization, and the importance of matriarchal leadership to social groups, and relative importance of different forms of communication under various ecological conditions remain interesting topics that await investigation. Reproductive behaviour also has been examined in detail only in the African savannah elephant, although rigorous chemical analyses continue to be carried out using captive elephants of both species. Improved laboratory techniques may enable future work on reproductive signalling in free-ranging elephants, allowing for comprehensive studies of male-male interactions and mate choice by females.  
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  Notes Copyright for this article belongs to Indian Academy of Sciences. Approved yes  
  Call Number Equine Behaviour @ team @ Serial 4703  
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Author Tizo-Pedroso, E.; Del-Claro, K. url  doi
openurl 
  Title Matriphagy In The Neotropical Pseudoscorpion Paratemnoides Nidificator (Balzan 1888) (Atemnidae) Type Journal Article
  Year 2005 Publication Journal of Arachnology Abbreviated Journal  
  Volume 33 Issue 3 Pages 873-877  
  Keywords  
  Abstract We studied the natural history and social behavior of Paratemnoides nidificator (Balzan 1888) in a tropical savanna system. Females were responsible for all nymphal care. We observed, for the first time in pseudoscorpions, the occurrence of matriphagy behavior by the offspring. During conditions of food deprivation, the mother went out of the nest and passively awaited the protonymphs' attack, not reacting to the capture nor to the nymphs feeding on her body. We suggest that this extreme form of parental care, matriphagy, can reduce cannibalism among protonymphs and facilitate the evolution of social behavior in pseudoscorpions. RESUMO Nos estudamos a historia natural e o comportamento social de Paratemnoides nidificator (Balzan 1888) na regiao dos cerrados. As femeas foram responsaveis por todo o cuidado as ninfas. Nos observamos, pela primeira vez em pseudoescorpioes, a ocorrencia de matrifagia pela prole. Em condicoes de fome, a mae deixa o ninho e passivamente espera que as protoninfas a ataquem, nao reagindo nem a captura, nem a alimentacao das ninfas sobre seu corpo. Nos sugerimos que esta forma extrema de cuidado parental, matrifagia, possa reduzir o canibalismo entre as protoninfas e assim facilitar a evolucao de comportamento social em pseudoescorpioes.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4718  
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Author Sol, D.; Duncan, R.P.; Blackburn, T.M.; Cassey, P.; Lefebvre, L. url  doi
openurl 
  Title Big brains, enhanced cognition, and response of birds to novel environments Type Journal Article
  Year 2005 Publication Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc. Natl. Acad. Sci. U.S.A.  
  Volume 102 Issue 15 Pages 5460-5465  
  Keywords  
  Abstract The widely held hypothesis that enlarged brains have evolved as an adaptation to cope with novel or altered environmental conditions lacks firm empirical support. Here, we test this hypothesis for a major animal group (birds) by examining whether large-brained species show higher survival than small-brained species when introduced to nonnative locations. Using a global database documenting the outcome of >600 introduction events, we confirm that avian species with larger brains, relative to their body mass, tend to be more successful at establishing themselves in novel environments. Moreover, we provide evidence that larger brains help birds respond to novel conditions by enhancing their innovation propensity rather than indirectly through noncognitive mechanisms. These findings provide strong evidence for the hypothesis that enlarged brains function, and hence may have evolved, to deal with changes in the environment.  
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  Notes 10.1073/pnas.0408145102 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4739  
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Author Landaeta-Hernández, A. J.; Chenoweth, P. J.; Randles, R.; Littell, R.; Rae, O.; Chase, C. C. url  openurl
  Title Identifying the social dominance order in a mixed breed herd: a practical methodology Type Journal Article
  Year 2005 Publication Revista Científica Abbreviated Journal Revista Científica  
  Volume 15 Issue 2 Pages 148-154  
  Keywords Cattle, behavior, social organization  
  Abstract The major objective of this study was to identify a simple and accurate method of assessing differences in female social status. Three methods of estimating dominance value (DV) were compared in beef cows of three breed-types; Angus (A; n=10), Brahman (B; n=10), and Senepol (S; n=10). Cows were equitably assigned to two groups of fifteen each, allocated into separate pastures and containing equal number of animals by breed. Agonistic interactions were recorded for 45 d of study, in two 1 h periods during concentrate feeding using the method of competitive orders winner/loser. Methods of estimating DV included: I) Ratio between individuals dominated and total encountered, II) Ratio between encounters won to total encounters, III) Proportion of individuals dominated to total herdmates. Due to the different level of interactivity evidenced among animals as well as between and within social orders, method III with subsequent arc-sin transformation was considered as the most practical and accurate method for estimating DV and subsequent allocation of cows into a social dominance order. In addition, a breed effect was found on social dominance. Senepol cows obtained greater DV`s (1.24 ± 0.08) than Angus (0.97 ± 0.08; P<0.03) and Brahman cows (0.76 ± 0.08; P<0.005).  
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  ISSN 0798-2259 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Equine Behaviour @ team @ Serial 4753  
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Author Conradt, L.; Roper, T.J. url  doi
openurl 
  Title Consensus decision making in animals Type Journal Article
  Year 2005 Publication Trends in Ecology & Evolution (Personal Edition) Abbreviated Journal Trends Ecol Evol  
  Volume 20 Issue 8 Pages 449-456  
  Keywords  
  Abstract Individual animals routinely face decisions that are crucial to their fitness. In social species, however, many of these decisions need to be made jointly with other group members because the group will split apart unless a consensus is reached. Here, we review empirical and theoretical studies of consensus decision making, and place them in a coherent framework. In particular, we classify consensus decisions according to the degree to which they involve conflict of interest between group members, and whether they involve either local or global communication; we ask, for different categories of consensus decision, who makes the decision, what are the underlying mechanisms, and what are the functional consequences. We conclude that consensus decision making is common in non-human animals, and that cooperation between group members in the decision-making process is likely to be the norm, even when the decision involves significant conflict of interest.  
  Address Department of Biology and Environmental Science, John Maynard Smith Building, University of Sussex, Brighton, UK, BN1 9QG. L.Conradt@sussex.ac.uk  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0169-5347 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16701416 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4802  
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Author Couzin, I.D.; Krause, J.; Franks, N.R.; Levin, S.A. url  doi
openurl 
  Title Effective leadership and decision-making in animal groups on the move Type Journal Article
  Year 2005 Publication Abbreviated Journal Nature  
  Volume 433 Issue 7025 Pages 513-516  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0028-0836 ISBN Medium  
  Area Expedition Conference  
  Notes 10.1038/nature03236 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4827  
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Author Cooper, J.J.; Albentosa, M.J. url  doi
openurl 
  Title Behavioural adaptation in the domestic horse: potential role of apparently abnormal responses including stereotypic behaviour Type Journal Article
  Year 2005 Publication Livestock Production Science Abbreviated Journal Livest. Prod. Sci.  
  Volume 92 Issue 2 Pages 177-182  
  Keywords Behavioural adaptation; Horse; Stereotypic behaviour  
  Abstract Classically, biologists have considered adaptation of behavioural characteristics in terms of long-term functional benefits to the individual, such as survival or reproductive fitness. In captive species, including the domestic horse, this level of explanation is limited, as for the most part, horses are housed in conditions that differ markedly from those in which they evolved. In addition, an individual horse's reproductive fitness is largely determined by man rather than its own behavioural strategies. Perhaps for reasons of this kind, explanations of behavioural adaptation to environmental challenges by domestic animals, including the capacity to learn new responses to these challenges, tend to concentrate on the proximate causes of behaviour. However, understanding the original function of these adaptive responses can help us explain why animals perform apparently novel or functionless activities in certain housing conditions and may help us to appreciate what the animal welfare implications might be. This paper reviews the behavioural adaptation of the domestic horse to captivity and discusses how apparently abnormal behaviour may not only provide a useful practical indicator of specific environmental deficiencies but may also serve the animal as an adaptive response to these deficiencies in an “abnormal” environment.  
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  Series Volume Series Issue Edition  
  ISSN 0301-6226 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4829  
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Author Parr, L.A.; Waller, B.M.; Fugate, J. url  doi
openurl 
  Title Emotional communication in primates: implications for neurobiology Type Journal Article
  Year 2005 Publication Current Opinion in Neurobiology Abbreviated Journal Curr. Opin. Neurobiol.  
  Volume 15 Issue 6 Pages 716-720  
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  Abstract The social brain hypothesis proposes that large neocortex size in Homonoids evolved to cope with the increasing demands of complex group living and greater numbers of interindividual relationships. Group living requires that individuals communicate effectively about environmental and internal events. Recent data have highlighted the complexity of chimpanzee communication, including graded facial expressions and referential vocalizations. Among Hominoids, elaborate facial communication is accompanied by specializations in brain areas controlling facial movement. Finally, the evolution of empathy, or emotional awareness, might have a neural basis in specialized cells in the neocortex, that is, spindle cells that have been associated with self-conscious emotions, and mirror neurons that have recently been shown to activate in response to communicative facial gestures.  
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  ISSN 0959-4388 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5059  
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Author Momozawa, Y.; Kusunose, R.; Kikusui, T.; Takeuchi, Y.; Mori, Y. url  doi
openurl 
  Title Assessment of equine temperament questionnaire by comparing factor structure between two separate surveys Type Journal Article
  Year 2005 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 92 Issue 1-2 Pages 77-84  
  Keywords Anxiety; Factor analysis; Horses; Questionnaires; Temperament  
  Abstract To establish a method for assessing equine temperament by use of a questionnaire, we carried out two surveys. The subject animals were all thoroughbreds maintained at the same farm. Respondents were the primary caretaker and two colleagues working with each horse. Factor analysis was performed on the responses to each survey. In both surveys, five factors were extracted and four of them were common between the two surveys. The common factors were [`]Anxiety', [`]Trainability', [`]Affability', and [`]Gate entrance'. There were sufficient internal consistencies in responses about [`]Anxiety', [`]Trainability', and [`]Affability' in the two surveys to indicate the validity of this questionnaire in evaluating these factors in equine temperament.  
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  ISSN 0168-1591 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5063  
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Author Stürmer, K. openurl 
  Title Untersuchungen zum Einfluss der Fütterung auf den Säure-Basen-Haushalt bei Ponys Type Manuscript
  Year 2005 Publication Abbreviated Journal  
  Volume Issue Pages  
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  Abstract In der praktischen Pferdefütterung kommen regelmäßig Substanzen zum Einsatz, die

einen erheblichen Einfluss auf den Säure-Basen-Haushalt ausüben. Andererseits können

Manipulationen des Säure-Basen-Haushaltes in der Diätetik erwünscht sein, z.B. bei

Harnsteinen oder hyperkaliämischer periodischer Paralyse. Verschiebungen im Säure-

Basen-Gleichgewicht treten – unabhängig von der Fütterung – außerdem bei starker

körperlicher Aktivität auf, eine eventuelle Prophylaxe durch die Ernährung wird

ebenfalls diskutiert. Der Einfluss der Fütterung auf den Säure-Basen-Haushalt ist beim

Pferd bisher nur wenig und nicht systematisch untersucht, während sich viele Arbeiten

mit dem Effekt körperlicher Belastung beschäftigen. Analogieschlüsse zu anderen

Spezies müssen äußerst vorsichtig betrachtet werden, da die Absorption von am Säure-

Basen-Haushalt beteiligten Substanzen beim Pferd Unterschiede zu anderen Spezies

aufweist (Meyer, 1982).

In der vorliegenden Untersuchung sollte daher der Effekt von verschiedenen Chloriden

(Natriumchlorid, Kalziumchlorid, Ammoniumchlorid) auf den Säure-Basen-Haushalt bei

Ponys geprüft werden. In den ersten Versuchsdurchgängen wurden für Kleinpferde im

Erhaltungsstoffwechsel für diesen Zweck Rationen mit sehr hohen Heuanteilen

verwendet. Trotz hoher Dosen des bei verschiedenen Spezies stark säuernden

Ammoniumchlorids traten bei den Ponys nur relativ kleine Effekte auf. Bei der weiteren

Durchsicht des Schrifttums fiel auf, dass Einzelbeobachtungen zu stark säuernden

Effekten nur bei Rationen mit hohem Anteil an Kraftfutter und geringem Anteil an

Rauhfutter auftraten. Daher wurde der Effekt von Ammoniumchlorid auf einer stark

kraftfutterhaltigen Ration nochmals überprüft.
 
  Address  
  Corporate Author Thesis Ph.D. thesis  
  Publisher Place of Publication (up) Editor  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5162  
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