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Author Mettke-Hofmann, C.; Winkler, H.; Leisler, B. url  doi
openurl 
  Title The Significance of Ecological Factors for Exploration and Neophobia in Parrots Type Journal Article
  Year 2002 Publication Ethology Abbreviated Journal  
  Volume 108 Issue 3 Pages 249-272  
  Keywords  
  Abstract Exploratory behaviour plays an important role in most animals for gathering information about their environment. If it constitutes an adaptation to different environmental conditions exploratory behaviour should differ between species. This has been tested with several hypotheses. Sixty-one parrot species (Psittacidae) from eight tribes with different diets and habitat preferences were investigated in aviaries. Two tests were carried out. First, a novel object (wooden ring) in the familiar aviary was presented on two test days in the exploration test. Latencies until first contact with the object and the duration of exploration were recorded. Secondly, in the neophobia test, novel objects were placed beside the feeding dish and latencies until first food intake were recorded. The exploration and neophobia data were related to 12 (13) ecological variables using multiple regression analyses. Phylogenetic relationships were considered. Species that inhabit complex habitats, such as forest edges, or that feed on buds or species from islands showed the shortest latencies in the exploration test. In contrast, long latencies were related to a diet including a great amount of seeds and/or flowers. The longest duration of exploration occurred in species eating nuts or originating from islands, whereas short durations were related to feeding on seeds. Neophobia was positively related to a diet consisting of insects, and negatively to a diet of leaves. There was no relationship between measures of exploration and neophobia. Exploration and neophobia seem to be tightly related to the ecology of a species.  
  Address  
  Corporate Author Thesis  
  Publisher Blackwell Wissenschafts-Verlag Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1439-0310 ISBN Medium  
  Area Expedition Conference  
  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Serial 5617  
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Author McDonough, P.; Kindig, C.A.; Ramsel, C.; Poole, D.C.; Erickson, H.H. url  openurl
  Title The effect of treadmill incline on maximal oxygen uptake, gas exchange and the metabolic response to exercise in the horse Type Journal Article
  Year 2002 Publication Experimental Physiology Abbreviated Journal  
  Volume 87 Issue 04 Pages 499-506 M3 - null  
  Keywords  
  Abstract In healthy man, conditions that change muscle O2 delivery affect the achievable maximum rate of O2 uptake (V[dot above]O2,max) as well as the metabolic (e.g. lactate threshold, LT) and gas exchange (e.g. gas exchange threshold, Tge) responses to incremental exercise. Inclined (I) compared to level (L) running increases locomotory muscle EMG at a given speed in the horse, indicative of elevated metabolic demand. To our knowledge, the effect of treadmill incline on V[dot above]O2,max, LT and Tge has not been addressed in the exercising quadruped. We used blood sampling and breath-by-breath expired gas analysis to test the hypothesis that I (10 % gradient) would increase V[dot above]O2,max and the rate of O2 uptake (V[dot above]O2) at LT and Tge in six Thoroughbred horses during incremental running to volitional fatigue. V[dot above]O2,max was significantly higher for I (I, 77.8 ± 4.1; L, 65.5 ± 5.3 l min-1; P < 0.05), but peak plasma lactate concentration was not (I, 28.0 ± 3.7; L, 25.9 ± 3.0 mM). Arterial PCO2 increased to 62.1 ± 3.3 and 57.9 ± 2.7 Torr (I vs. L; P < 0.05), yet despite this relative hypoventilation, a distinct Tge was present. This Tge occurred at a significantly different absolute (I, 49.6 ± 3.2; L, 42.4 ± 3.2 l min-1; P < 0.05), but nearly identical relative V[dot above]O2 (I, 63.6 ± 1.2; L, 63.9 ± 1.6 % V[dot above]O2,max) in I and L. Similarly, LT occurred at a significantly greater absolute V[dot above]O2 (I, 37.3 ± 2.8; L, 26.9 ± 2.1 l min-1), but a relative V[dot above]O2 that was not different (I, 47.9 ± 2.1; L, 43.9 ± 4.5 % V[dot above]O2,max). In addition, Tge occurred at a significantly higher (P [less-than-or-equal] 0.05) absolute and relative V[dot above]O2 than LT for both I and L tests. In conclusion, V[dot above]O2,max is higher during inclined than level running and both LT and Tge in the horse occur at a similar percentage of V[dot above]O2,max irrespective of the absolute level of V[dot above]O2,max. In contrast to humans, LT is a poor analogue of Tge in the horse.  
  Address  
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  Publisher Cambridge Journals Online Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1469-445x ISBN Medium  
  Area Expedition Conference  
  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Serial 5650  
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Author Pfister, J.A.; Stegelmeier, B.L.; Cheney, C.D.; Ralphs, M.H.; Gardner, D.R. url  openurl
  Title Conditioning taste aversions to locoweed (Oxytropis sericea) in horses Type Journal Article
  Year 2002 Publication Journal of Animal Science Abbreviated Journal J. Anim. Sci.  
  Volume 80 Issue 1 Pages 79-83  
  Keywords  
  Abstract Locoweed (Oxytropis sericea) is a serious poisoning problem for horses grazing on infested rangelands in the western United States. Our objectives were to determine 1) whether lithium chloride or apomorphine would condition aversions to palatable foods, and at what doses, and 2) whether horses could be averted to fresh locoweed in a pen and grazing situation. Apomorphine was not an acceptable aversive agent because at the dose required to condition an aversion (> or = 0.17 mg/kg BW), apomorphine induced unacceptable behavioral effects. Lithium chloride given via stomach tube at 190 mg/kg BW conditioned strong and persistent aversions to palatable feeds with minor signs of distress. Pen and grazing tests were conducted in Colorado to determine if horses could be averted to fresh locoweed. Pen tests indicated that most horses (5/6) were completely averted from locoweed. Treated horses ate 34 g of fresh locoweed compared to 135 g for controls (P < 0.01) during three pen tests when offered 150 g per test. One horse (T) in the treatment group ate locoweed each time it was offered in the pen, but ate no locoweed while grazing. In the grazing trial, control horses averaged 8.6% of bites of locoweed (P < 0.01) during the grazing portion of the study, whereas treated horses averaged <0.5%. One treated horse (S) accounted for all consumption; he consumed 15% of his bites as locoweed in a grazing bout on d 2 of the field study. Thereafter, he was dosed a second time with lithium chloride and ate no locoweed in the subsequent 5 d. Three of six horses required two pairings of lithium chloride with fresh locoweed to condition a complete aversion. The results of this study indicate that horses can be averted from locoweed using lithium chloride as an aversive agent, and this may provide a management tool to reduce the risk of intoxication for horses grazing locoweed-infested rangeland.  
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  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Serial 5682  
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Author Clow, A; Hucklebridge, F. isbn  openurl
  Title International Review of Neurobiology: Neurobiology of the Immune System Type Book Whole
  Year 2002 Publication Abbreviated Journal  
  Volume 52 Issue Pages  
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  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Academic Press Place of Publication Amsterdam Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN 0-12-366853-0 Medium  
  Area Expedition Conference  
  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Serial 5782  
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Author Neveu, P.J. openurl 
  Title Cerebral Lateralisation and the Immune System Type Book Chapter
  Year 2002 Publication International Review of Neurobiology: Neurobiology of the Immune System Abbreviated Journal  
  Volume 52 Issue Pages 303-318  
  Keywords  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Academic Press Place of Publication Amsterdam Editor Clow, A.; Hucklebridge, F.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  Area Expedition Conference  
  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Serial 5828  
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Author Podsakoff, P.M.; MacKenzie, S. B.; Lee, J.-Y.; Podsakoff, N. P. url  openurl
  Title Common method biases in behavioral research: A critical review of the literature and recommended remedies. Type Journal Article
  Year 2002 Publication Journal of Applied Psychology Abbreviated Journal J. Appl. Psychol.  
  Volume 85 Issue 5 Pages 879-903  
  Keywords  
  Abstract Interest in the problem of method biases has a long history in the behavioral sciences. Despite this, a comprehensive summary of the potential sources of method biases and how to control for them does not exist. Therefore, the purpose of this article is to examine the extent to which method biases influence behavioral research results, identify potential sources of method biases, discuss the cognitive processes through which method biases influence responses to measures, evaluate the many different procedural and statistical techniques that can be used to control method biases, and provide recommendations for how to select appropriate procedural and statistical remedies for different types of research settings. (PsycINFO Database Record (c) 2016 APA, all rights reserved)

$11.95
 
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  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Serial 6435  
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Author Murphy, M.A.; Waits, L.P.; Kendall, K.C.; Wasser, S.K.; Higbee, J.A.; Bogden, R. url  doi
openurl 
  Title An evaluation of long-term preservation methods for brown bear (Ursus arctos) faecal DNA samples Type Journal Article
  Year 2002 Publication Conservation Genetics Abbreviated Journal Conservat. Genet.  
  Volume 3 Issue 4 Pages 435-440  
  Keywords  
  Abstract Relatively few large-scale faecal DNA studieshave been initiated due to difficulties inamplifying low quality and quantity DNAtemplate. To improve brown bear faecal DNA PCRamplification success rates and to determinepost collection sample longevity, fivepreservation methods were evaluated: 90%ethanol, DETs buffer, silica-dried, oven-driedstored at room temperature, and oven-driedstored at -20 °C. Preservationeffectiveness was evaluated for 50 faecalsamples by PCR amplification of a mitochondrialDNA (mtDNA) locus (~146 bp) and a nuclear DNA(nDNA) locus (~200 bp) at time points of oneweek, one month, three months and six months. Preservation method and storage timesignificantly impacted mtDNA and nDNAamplification success rates. For mtDNA, allpreservation methods had >= 75% success atone week, but storage time had a significantimpact on the effectiveness of the silicapreservation method. Ethanol preserved sampleshad the highest success rates for both mtDNA(86.5%) and nDNA (84%). Nuclear DNAamplification success rates ranged from 26-88%, and storage time had a significant impacton all methods but ethanol. Preservationmethod and storage time should be importantconsiderations for researchers planningprojects utilizing faecal DNA. We recommendpreservation of faecal samples in 90% ethanolwhen feasible, although when collecting inremote field conditions or for both DNA andhormone assays a dry collection method may beadvantageous.  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1572-9737 ISBN Medium  
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  Notes (up) Approved no  
  Call Number Equine Behaviour @ team @ Murphy2002 Serial 6574  
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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 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 (up) 10.1098/rspb.2002.1967 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5452  
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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 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 (up) 10.1126/science.298.5594.824 Approved no  
  Call Number Equine Behaviour @ team @ Serial 5032  
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Author Ginther, O.J.; Lara, A.; Leoni, M.; Bergfelt, D.R. openurl 
  Title Herding and snaking by the harem stallion in domestic herds Type Journal Article
  Year 2002 Publication Theriogenology Abbreviated Journal  
  Volume 57 Issue 8 Pages 2139-2146  
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  Notes (up) Cited By (since 1996): 1; Export Date: 21 October 2008 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4516  
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