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Author Doligez, B.; Danchin, E.; Clobert, J. doi  openurl
  Title Public information and breeding habitat selection in a wild bird population Type Journal Article
  Year 2002 Publication (down) Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 297 Issue 5584 Pages 1168-1170  
  Keywords *Animal Migration; Animals; Animals, Wild/physiology; *Behavior, Animal; Cognition; Cues; *Environment; Female; Male; *Nesting Behavior; Probability; *Reproduction; Songbirds/*physiology; Sweden  
  Abstract According to the “public information” hypothesis, some animal species may monitor the current reproductive success of conspecifics to assess local habitat quality and to choose their own subsequent breeding site. To test this hypothesis experimentally, we manipulated two components of public information, the mean number of offspring raised locally (“quantity”) and their condition (“quality”), in the collared flycatcher Ficedula albicollis. Immigration rate decreased with local offspring quantity but did not depend on local offspring quality, suggesting that immigrants are deprived of information regarding local quality. Conversely, emigration rate increased both when local offspring quantity or quality decreased, suggesting that residents can use both components of public information.  
  Address Laboratoire d'Ecologie CNRS-UMR 7625, Universite Pierre et Marie Curie, 7 quai Saint Bernard, Batiment A 7eme etage, Case 237, F-75252 Paris Cedex 05, France. blandine.doligez@esh.unibe.ch  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 1095-9203 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12183627 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2841  
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Author Weir, A.A.S.; Chappell, J.; Kacelnik, A. doi  openurl
  Title Shaping of hooks in New Caledonian crows Type Journal Article
  Year 2002 Publication (down) Science (New York, N.Y.) Abbreviated Journal Science  
  Volume 297 Issue 5583 Pages 981  
  Keywords Animals; *Behavior, Animal; *Cognition; Female; Male; Songbirds/*physiology  
  Abstract  
  Address Department of Zoology, South Parks Road, Oxford OX1 3PS, UK  
  Corporate Author Thesis  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1095-9203 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12169726 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2842  
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Author Milo, R.; Shen-Orr, S.; Itzkovitz, S.; Kashtan, N.; Chklovskii, D.; Alon, U. url  doi
openurl 
  Title Network Motifs: Simple Building Blocks of Complex Networks Type Journal Article
  Year 2002 Publication (down) Science Abbreviated Journal Science  
  Volume 298 Issue 5594 Pages 824-827  
  Keywords  
  Abstract Complex networks are studied across many fields of science. To uncover their structural design principles, we defined “network motifs,” patterns of interconnections occurring in complex networks at numbers that are significantly higher than those in randomized networks. We found such motifs in networks from biochemistry, neurobiology, ecology, and engineering. The motifs shared by ecological food webs were distinct from the motifs shared by the genetic networks of Escherichia coli and Saccharomyces cerevisiae or from those found in the World Wide Web. Similar motifs were found in networks that perform information processing, even though they describe elements as different as biomolecules within a cell and synaptic connections between neurons in Caenorhabditis elegans. Motifs may thus define universal classes of networks. This approach may uncover the basic building blocks of most networks.  
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  Notes 10.1126/science.298.5594.824 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5032  
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Author Isenbugel, E. openurl 
  Title [From wild horse to riding horse] Type Journal Article
  Year 2002 Publication (down) Schweizer Archiv fur Tierheilkunde Abbreviated Journal Schweiz Arch Tierheilkd  
  Volume 144 Issue 7 Pages 323-329  
  Keywords Animal Husbandry/*history; Animals; Animals, Domestic; Animals, Wild; *Bonding, Human-Pet; Breeding/history; Evolution; Female; History, 15th Century; History, 16th Century; History, 17th Century; History, 18th Century; History, 19th Century; History, 20th Century; History, Ancient; History, Medieval; *Horses/physiology/psychology; Humans; Male; Paintings; Predatory Behavior; Sculpture; Sports/history  
  Abstract Over 45 million years of evolution the horse developed to a highly specialized animal in anatomy, physiology and behavior. No other animal had influenced the economic and cultural history of men to such extent. Hunting prey since the ice age, domesticated 4000 B.C. and used for thousands of years as unique animal all over the world has attained a new role today as partner in sport, as companion animal and even as cotherapeutic. The well known behavioral demands in use and keeping are still often not fulfilled.  
  Address Zoologischer Garten Zurich  
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  Language German Summary Language Original Title Vom Wildpferd zum Reitpferd  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0036-7281 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12174680 Approved no  
  Call Number refbase @ user @ Serial 1913  
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Author Kirkpatrick, J.F.; Turner, A. openurl 
  Title Reversibility of action and safety during pregnancy of immunization against porcine zona pellucida in wild mares (Equus caballus) Type Journal Article
  Year 2002 Publication (down) Reproduction (Cambridge, England) Supplement Abbreviated Journal Reprod Suppl  
  Volume 60 Issue Pages 197-202  
  Keywords Animals; *Animals, Wild; Antigens/administration & dosage; Contraception, Immunologic/methods/*veterinary; Egg Proteins/administration & dosage; Female; Fertility; *Horses; Immunization, Secondary/veterinary; Membrane Glycoproteins/administration & dosage; Population Control; Pregnancy; *Receptors, Cell Surface; Safety; Swine; Time Factors; Vaccines, Contraceptive/*administration & dosage  
  Abstract Contraceptive management of publicly valued wildlife species requires safeguards to ensure that these populations are preserved in a healthy state. In addition, reversibility of contraceptive effects and safety in pregnant animals are major concerns. A population of wild horses has been immunized against porcine zona pellucida (PZP) over a 12 year period on Assateague Island National Seashore, MD (ASIS). Mares initially received one or two 65 microg inoculations and once a year 65 microg booster inoculations, all delivered by dart. All young mares aged > 2 years were treated with PZP for 3 consecutive years regardless of whether they have bred successfully and they were then removed from treatment until they had foaled. All mares vaccinated for 1 or 2 consecutive years became fertile again and 69% of mares treated for 3 consecutive years returned to fertility. All five mares treated for 4 or 5 consecutive years have also returned to fertility, but over longer periods of time. Mares treated for 7 consecutive years have not returned to fertility, but several, while still infertile, have started ovulating again. There was no difference in survival rates between foals born to treated and untreated mares, and PZP treatment of pregnant mares did not affect subsequent fertility of their female offspring.  
  Address Science and Conservation Center, ZooMontana, Billings 59106, USA. zoolab@wtp.net  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1477-0415 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12220160 Approved no  
  Call Number refbase @ user @ Serial 141  
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Author Turner, A.; Kirkpatrick, J.F. openurl 
  Title Effects of immunocontraception on population, longevity and body condition in wild mares (Equus caballus) Type Journal Article
  Year 2002 Publication (down) Reproduction (Cambridge, England) Supplement Abbreviated Journal Reprod Suppl  
  Volume 60 Issue Pages 187-195  
  Keywords Animals; *Animals, Wild; Antigens/administration & dosage; Body Constitution; Contraception, Immunologic/methods/*veterinary; Egg Proteins/administration & dosage; Female; *Horses; Longevity; Membrane Glycoproteins/administration & dosage; Population Control; Population Dynamics; *Receptors, Cell Surface; Swine; Vaccines, Contraceptive/administration & dosage  
  Abstract Contraception is becoming a common approach for the management of captive and wild ungulates yet there are few data for contraceptive effects on entire populations. Management-level treatment of mares with porcine zona pellucida (PZP) vaccine resulted in zero population growth of the Assateague Island wild horse population within 1 year of initiation of treatment. Contraceptive efficacy was 90% for mares treated twice in the first year and annually thereafter. For mares given a single initial inoculation, contraceptive efficacy was 78%. The effort required to achieve zero population growth decreased, as 95, 83 and 84% of all adult mares were treated in each of the first 3 years, compared with 59 and 52% during the last 2 years. Mortality rates for mares and foals after the initiation of management-level treatments decreased below historic and pretreatment mortality rates of approximately 5%. Two new age classes have appeared among treated animals (21-25 years and > 25 years), indicating an increase in longevity among treated animals. Body condition scores for all horses, all adult mares and non-lactating mares increased significantly between summer 1989 and autumn 1999 but did not change significantly in lactating mares. These results provide reliable data for the construction of realistic models for contraceptive management of free-roaming or captive ungulate populations.  
  Address Assateague Island National Seashore, Berlin, MD 21811, USA  
  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 1477-0415 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12220158 Approved no  
  Call Number refbase @ user @ Serial 142  
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Author King, S.R.B.; Gurnell, J. openurl 
  Title Behavioural ecology of Przewalski horses (Equus przewalskii) reintroduced to Hustai National Park, Mongolia Type Manuscript
  Year 2002 Publication (down) Queen Mary, University of London Abbreviated Journal  
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  Address  
  Corporate Author Thesis Ph.D. thesis  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2320  
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Author Earley, R.L.; Dugatkin, L.A. doi  openurl
  Title Eavesdropping on visual cues in green swordtail (Xiphophorus helleri) fights: a case for networking Type Journal Article
  Year 2002 Publication (down) Proceedings. Biological sciences / The Royal Society Abbreviated Journal Proc Biol Sci  
  Volume 269 Issue 1494 Pages 943-952  
  Keywords *Aggression; Animals; *Behavior, Animal; *Cyprinodontiformes; Female; Male  
  Abstract Aggressive contests probably occur in networking environments where information about fighting ability is conveyed both to an opponent and to individuals peripheral to the fight itself, the bystanders. Our primary aim was to investigate the relative influences of eavesdropping and prior social experience on the dynamics of aggressive contests in Xiphophorus helleri. A bystander's ability to witness an encounter was manipulated using clear, one-way mirror, and opaque partitions. After watching (or not watching) the initial contest, the bystander encountered either the winner or loser of the bout. Treatment comparisons of bystander-winner or bystander-loser contest dynamics indicated the presence or absence of winner, loser, or eavesdropping effects. Winner and loser effects had negligible influences on bystander contest dynamics. Eavesdropping significantly reduced the bystander's propensity to initiate aggression, escalate, and win against seen winners regardless of whether the watched bout had escalated or not. Though eavesdropping had relatively little effect on bystander-loser contest dynamics, bystanders were less prone to initiate aggression and win against losers that had escalated in the witnessed bout. Thus, bystanders appear to preferentially retain and utilize information gained about potentially dangerous opponents (winners or persistent losers). Our data lend clear support for the importance of eavesdropping in visually based aggressive signalling systems.  
  Address Department of Biology, Life Science, Room 139, University of Louisville, Louisville, KY 40292, USA. rlearl01@athena.louisville.edu  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0962-8452 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12028778 Approved no  
  Call Number refbase @ user @ Serial 498  
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Author Peake, T.M.; Terry, A.M.R.; McGregor, P.K.; Dabelsteen, T. doi  openurl
  Title Do great tits assess rivals by combining direct experience with information gathered by eavesdropping? Type Journal Article
  Year 2002 Publication (down) Proceedings. Biological sciences / The Royal Society Abbreviated Journal Proc Biol Sci  
  Volume 269 Issue 1503 Pages 1925-1929  
  Keywords Aggression; *Animal Communication; Animals; Male; Songbirds/*physiology; Territoriality; *Vocalization, Animal  
  Abstract Animals frequently use signals that travel further than the spacing between individuals. For every intended recipient of a given signal there are likely to be many other individuals that receive information. Eavesdropping on signalling interactions between other individuals provides a relatively cost-free method of assessing future opponents or mates. Male great tits (Parus major) extract relative information from such interactions between individuals unknown to them. Here, we show that male great tits can take information gathering a stage further and obtain more information about a previously unencountered intruder, by the hitherto unknown capability of combining information gathered by eavesdropping with that derived from their own direct interaction with an individual. Prior experience with an intruder (A) was achieved by subjecting a focal male to different levels of intrusion simulated using interactive playback. This intruder (A) then took part in a simulated interaction with an unknown male (B) outside the territorial boundary of the focal males. In response to subsequent intrusion by the second male (B), focal males showed low song output in response to males that had lost to a male that the subject was able to beat. Males of known high quality, or those about which information was ambiguous, elicited a high level of song output by focal males. We discuss the implications of this finding for the evolution of communication and social behaviour.  
  Address Department of Animal Behaviour, Zoological Institute, Copenhagen University, Tagensvej 16, DK 2200 Copenhagen N, Denmark. tmpeake@zi.ku.uk  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0962-8452 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12350255 Approved no  
  Call Number refbase @ user @ Serial 501  
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Author Garamszegi, L.Z.; Møller, A.P.; Erritzøe, J. doi  openurl
  Title Coevolving avian eye size and brain size in relation to prey capture and nocturnality Type Journal Article
  Year 2002 Publication (down) Proceedings of the Royal Society of London. Series B: Biological Sciences Abbreviated Journal Proc Roy Soc Lond B Biol Sci  
  Volume 269 Issue 1494 Pages 961-967  
  Keywords adaptation; behaviour; brain size; coevolution; eye size; vision  
  Abstract Behavioural adaptation to ecological conditions can lead to brain size evolution. Structures involved in behavioural visual information processing are expected to coevolve with enlargement of the brain. Because birds are mainly vision–oriented animals, we tested the predictions that adaptation to different foraging constraints can result in eye size evolution, and that species with large eyes have evolved large brains to cope with the increased amount of visual input. Using a comparative approach, we investigated the relationship between eye size and brain size, and the effect of prey capture technique and nocturnality on these traits. After controlling for allometric effects, there was a significant, positive correlation between relative brain size and relative eye size. Variation in relative eye and brain size were significantly and positively related to prey capture technique and nocturnality when a potentially confounding variable, aquatic feeding, was controlled statistically in multiple regression of independent linear contrasts. Applying a less robust, brunching approach, these patterns also emerged, with the exception that relative brain size did not vary with prey capture technique. Our findings suggest that relative eye size and brain size have coevolved in birds in response to nocturnal activity and, at least partly, to capture of mobile prey.  
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  Notes 10.1098/rspb.2002.1967 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5452  
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