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| Author | Fuller, T.K.; Sampson, B.A. | ||||
| Title | Evaluation of a simulated howling survey for wolves | Type | Journal Article | ||
| Year | 1988 | Publication | J Widl Manag | Abbreviated Journal | |
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52 | Issue | Pages | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ Fuller1988 | Serial | 6458 | ||
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| Author | Burton, A.C.; Neilson, E.; Moreira, D.; Ladle, A.; Steenweg, R.; Fisher, J.T.; Bayne, E.; Boutin, S. | ||||
| Title | REVIEW: Wildlife camera trapping: a review and recommendations for linking surveys to ecological processes | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of Applied Ecology | Abbreviated Journal | J Appl Ecol |
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52 | Issue | 3 | Pages | 675-685 |
| Keywords | animal movement; camera trap; capture-recapture; density estimation; imperfect detection; mammal monitoring; occupancy model; relative abundance; sampling error; wildlife survey methodology | ||||
| Abstract | Summary Reliable assessment of animal populations is a long-standing challenge in wildlife ecology. Technological advances have led to widespread adoption of camera traps (CTs) to survey wildlife distribution, abundance and behaviour. As for any wildlife survey method, camera trapping must contend with sources of sampling error such as imperfect detection. Early applications focused on density estimation of naturally marked species, but there is growing interest in broad-scale CT surveys of unmarked populations and communities. Nevertheless, inferences based on detection indices are controversial, and the suitability of alternatives such as occupancy estimation is debatable. We reviewed 266 CT studies published between 2008 and 2013. We recorded study objectives and methodologies, evaluating the consistency of CT protocols and sampling designs, the extent to which CT surveys considered sampling error, and the linkages between analytical assumptions and species ecology. Nearly two-thirds of studies surveyed more than one species, and a majority used response variables that ignored imperfect detection (e.g. presence?absence, relative abundance). Many studies used opportunistic sampling and did not explicitly report details of sampling design and camera deployment that could affect conclusions. Most studies estimating density used capture?recapture methods on marked species, with spatially explicit methods becoming more prominent. Few studies estimated density for unmarked species, focusing instead on occupancy modelling or measures of relative abundance. While occupancy studies estimated detectability, most did not explicitly define key components of the modelling framework (e.g. a site) or discuss potential violations of model assumptions (e.g. site closure). Studies using relative abundance relied on assumptions of equal detectability, and most did not explicitly define expected relationships between measured responses and underlying ecological processes (e.g. animal abundance and movement). Synthesis and applications. The rapid adoption of camera traps represents an exciting transition in wildlife survey methodology. We remain optimistic about the technology's promise, but call for more explicit consideration of underlying processes of animal abundance, movement and detection by cameras, including more thorough reporting of methodological details and assumptions. Such transparency will facilitate efforts to evaluate and improve the reliability of camera trap surveys, ultimately leading to stronger inferences and helping to meet modern needs for effective ecological inquiry and biodiversity monitoring. | ||||
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| Publisher | John Wiley & Sons, Ltd | Place of Publication | Editor | ||
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| ISSN | 0021-8901 | ISBN | Medium | ||
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| Notes | https://doi.org/10.1111/1365-2664.12432 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6703 | ||
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| Author | Hartmann, E.; Christensen, J.W.; McGreevy, P.D. | ||||
| Title | Dominance and Leadership: Useful Concepts in Human-Horse Interactions? | Type | Journal Article | ||
| Year | 2017 | Publication | Journal of Equine Veterinary Science | Abbreviated Journal | Proceedings of the 2017 Equine Science Symposium |
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52 | Issue | Pages | 1-9 | |
| Keywords | Horse; Social order; Dominance hierarchy; Aggression; Injury; Learning; Training | ||||
| Abstract | Dominance hierarchies in horses primarily influence priority access to limited resources of any kind, resulting in predictable contest outcomes that potentially minimize aggressive encounters and associated risk of injury. Levels of aggression in group-kept horses under domestic conditions have been reported to be higher than in their feral counterparts but can often be attributed to suboptimal management. Horse owners often express concerns about the risk of injuries occurring in group-kept horses, but these concerns have not been substantiated by empirical investigations. What has not yet been sufficiently addressed are human safety aspects related to approaching and handling group-kept horses. Given horse's natural tendency to synchronize activity to promote group cohesion, questions remain about how group dynamics influence human-horse interactions. Group dynamics influence a variety of management scenarios, ranging from taking a horse out of its social group to the prospect of humans mimicking the horse's social system by taking a putative leadership role and seeking after an alpha position in the dominance hierarchy to achieve compliance. Yet, there is considerable debate about whether the roles horses attain in their social group are of any relevance in their reactions to humans. This article reviews the empirical data on social dynamics in horses, focusing on dominance and leadership theories and the merits of incorporating those concepts into the human-horse context. This will provide a constructive framework for informed debate and valuable guidance for owners managing group-kept horses and for optimizing human-horse interactions. | ||||
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| ISSN | 0737-0806 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6712 | ||
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| Author | Gehlen, H.; Große, V.; Doher, M. | ||||
| Title | Möglichkeiten und Grenzen des Herdenschutzes für Pferde in Zusammenhang mit der wachsenden Wolfspopulation in Deutschland Literaturrecherche und Befragung von Pferdehaltern zur Gefährdungsbeurteilung [Options and limitations of protecting horse husbandries in times of growing wolf populations in Germany Review of the literature and horse owner questionnaire on risk assessment] | Type | Journal Article | ||
| Year | 2012 | Publication | Tierärztliche Praxis Großtier/Nutztier Ausgabe G | Abbreviated Journal | Tierarztl Prax Ausg G |
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49 | Issue | 05 | Pages | 301-309 |
| Keywords | Wolfsrisse – Bedrohung – Weidehaltung – Pferdehaltung – Verletzungen; Wolf kill – threat – pasture management – horse husbandry – injury | ||||
| Abstract | Zusammenfassung Gegenstand und Ziel Seit 2000 siedelt sich der Wolf in Deutschland wieder an. Mit steigenden Wolfszahlen nehmen die durch Wölfe verursachten Nutztierschäden zu, wobei auch Pferde betroffen sind. Ziel der Studie war es, einen Überblick zu dieser Problematik sowie Lösungsansätze zu geben. Material und Methoden Anhand einer Literaturrecherche wurden Daten zur Wolfspopulation in Deutschland, wolfsbedingten Schäden sowie Möglichkeiten und Grenzen des Herdenschutzes beim Pferd eruiert. Eine Online-Befragung von Pferdehaltern/-besitzern diente dazu, die tatsächliche und/oder gefühlte Bedrohung durch Wölfe und die daraus resultierenden Auswirkungen auf die Pferdehaltung zu ermitteln. Ergebnisse Die Literaturrecherche zeigte ein kontinuierliches Anwachsen der Wolfspopulation in den letzten Jahren und insbesondere seit 2016 einen deutlichen Anstieg wolfsverursachter Nutztierschäden, wobei Pferde selten betroffen waren. Bei der Online-Befragung stammte die Hälfte der 574 ausgewerteten Fragebögen aus Brandenburg und Niedersachsen. Den größten Einfluss auf die Gefährdungsbeurteilung eigener Pferde durch die wachsende Wolfspopulation hatte das Wissen der Pferdehalter über Wolfsangriffe im eigenen Landkreis, wobei insbesondere die Aspekte einer Haltung von Jungpferden und Weidegang für die Pferde eine Rolle spielten. 64 % der Befragten gaben an, ihre Pferdehaltung trotz der zunehmenden Wolfspopulation nicht geändert zu haben. Nur 8 von 576 Pferdehaltern gaben amtlich bestätigte Wolfsübergriffe an und 30 hatten einen vermuteten Wolfsschaden amtlichen Stellen nicht gemeldet. Mehr als die Hälfte der Befragten, die Kontakt zu einem Wolfsberater hatten, bezeichneten die Zusammenarbeit als nicht bis wenig zielführend. Schlussfolgerung und klinische Relevanz Die Zahl amtlich bestätigter Wolfsangriffe auf Pferde ist gering. Durch einen grundsätzlich durchgeführten Gentest bei entsprechendem Verdacht ließen sich diese Zahlen objektivieren. Trotz des Bewusstseins einer zunehmenden Gefährdung von Pferden durch Wölfe unternehmen Pferdehalter überwiegend keine prophylaktischen Schutzmaßnahmen. Die Kommunikation zwischen den für das Wolfsmonitoring zuständigen Behörden und den Pferdehaltern erscheint verbesserungswürdig. Abstract Objective Since 2000 the wolf population is reestablishing itself in Germany. In consequence to increasing numbers, livestock damage caused by wolves is on the rise, with horses likewise being affected. The aim of the study was to provide an overview of this challenge and its possible solutions. Material and methods Based on a literature research, data on the wolf population in Germany, wolf-related damage as well as possibilities and limitations of herd protection for horses were evaluated. An online survey addressed to horse owners/keepers served to determine the actual and/or perceived threat posed by wolves and the resulting effects on horse husbandry. Results The literature search showed a continuous increase of the wolf population in recent years as well as a significant increase of wolf-caused livestock damage in general especially since 2016; although horses were rarely affected. Half of the 574 evaluated questionnaires were from Brandenburg and Lower Saxony. The greatest influence on the individual risk assessment concerning their own horses by the growing wolf population was the horse owners� knowledge of wolf attacks in their own county. Especially the aspects of keeping young horses as well as pasture keeping played a significant role. 64 % of respondents indicated that they had not changed their horse management practices despite the increasing wolf population. Only 8 of 576 horse owners had reported officially confirmed wolf attacks and 30 respondents had not reported a suspected wolf damage to official agencies. More than half of the respondents who had contact with a wolf advisor described the cooperation as either not or only slightly purposeful. Conclusion and clinical relevance The number of officially confirmed wolf attacks on horses is low. These numbers could be objectified by a routinely performed genetic test in case of corresponding suspicion. Despite the awareness of an increasing danger of horses by wolves, horse owners mostly do not undertake prophylactic protection measures. The communication between responsible authorities for wolf monitoring and horse owners seems to be in need of improvement. |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6673 | ||
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| Author | Harrington, F.H.; Mech, L.D. | ||||
| Title | An analysis of howling response parameters useful for wolf pack censusing | Type | Journal Article | ||
| Year | 1982 | Publication | J Wildl Manag | Abbreviated Journal | |
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46 | Issue | Pages | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ Harrington1982 | Serial | 6456 | ||
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| Author | Harlow, H.F. | ||||
| Title | Learning and satiation of response in intrinsically motivated complex puzzle performance by monkeys | Type | Journal Article | ||
| Year | 1950 | Publication | Journal of Comparative and Physiological Psychology | Abbreviated Journal | J Comp Physiol Psychol |
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43 | Issue | 4 | Pages | 289-294 |
| Keywords | Animals; *Haplorhini; *Learning; *Motivation; *Psychology; *Satiation; *Learning; *Motivation; *Psychology | ||||
| Abstract | Two rhesus monkeys, given 60 two-hour sessions with a six-device mechanical puzzle showed clear evidence of learning, the curve showing ratio of incorrect to correct responses appearing quite comparable to similar curves obtained during externally rewarded situations. When, on the thirteenth day of tests, the subjects were presented with the puzzle 100 times at 6-minute intervals, the number of devices manipulated decreased regularly throughout the day, although there was no significant change in the number of times the problem assembly was attacked. | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0021-9940 | ISBN | Medium | ||
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| Notes | PMID:15436888 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6550 | ||
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| Author | Reinhardt, I.; Kluth, G.; Balzer, S.; Steyer, K. | ||||
| Title | Wolfsverursachte Schäden, Präventions- und Ausgleichszahlungen in Deutschland 2021 | Type | Manuscript | ||
| Year | 2022 | Publication | Abbreviated Journal | ||
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41 | Issue | Pages | ||
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| Publisher | DBBW-Dokumentations- und Beratungsstelle des Bundes zum Thema Wolf | Place of Publication | Görlitz, Deutschland | Editor | Markus Ritz |
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6684 | ||
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| Author | Tooze, Z.J.; Harrington, F.H.; Fentress, J.C. | ||||
| Title | Individually distinct vocalizations in timber wolves, Canis lupus | Type | Journal Article | ||
| Year | 1990 | Publication | Anim Behav | Abbreviated Journal | |
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40 | Issue | Pages | ||
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| Call Number | Equine Behaviour @ team @ Tooze1990 | Serial | 6468 | ||
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| Author | Burke, C.; Rashman, M.; Wich, S.; Symons, A.; Theron, C.; Longmore, S. | ||||
| Title | Optimizing observing strategies for monitoring animals using drone-mounted thermal infrared cameras | Type | Journal Article | ||
| Year | 2019 | Publication | International Journal of Remote Sensing | Abbreviated Journal | International Journal of Remote Sensing |
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40 | Issue | 2 | Pages | 439-467 |
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| Abstract | ABSTRACTThe proliferation of relatively affordable off-the-shelf drones offers great opportunities for wildlife monitoring and conservation. Similarly the recent reduction in the cost of thermal infrared cameras also offers new promise in this field, as they have the advantage over conventional RGB cameras of being able to distinguish animals based on their body heat and being able to detect animals at night. However, the use of drone-mounted thermal infrared cameras comes with several technical challenges. In this article, we address some of these issues, namely thermal contrast problems due to heat from the ground, absorption and emission of thermal infrared radiation by the atmosphere, obscuration by vegetation, and optimizing the flying height of drones for a best balance between covering a large area and being able to accurately image and identify animals of interest. We demonstrate the application of these methods with a case study using field data and make the first ever detection of the critically endangered riverine rabbit (Bunolagus monticularis) in thermal infrared data. We provide a web-tool so that the community can easily apply these techniques to other studies (http://www.astro.ljmu.ac.uk/aricburk/uav_calc/). | ||||
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| Publisher | Taylor & Francis | Place of Publication | Editor | ||
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| ISSN | 0143-1161 | ISBN | Medium | ||
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| Notes | doi: 10.1080/01431161.2018.1558372 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6528 | ||
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| Author | Bonin, S.J.; Clayton, H.M.; Lanovaz, J.L.; Johnston, T. | ||||
| Title | Comparison of mandibular motion in horses chewing hay and pellets | Type | Journal Article | ||
| Year | 2007 | Publication | Equine Veterinary Journal | Abbreviated Journal | Equine Vet. J. |
| Volume |
39 | Issue | 3 | Pages | 258-262 |
| Keywords | horse; temporomandibular joint; mastication; kinematics | ||||
| Abstract | Summary Reasons for performing study: Previous studies have suggested that temporomandibular joint (TMJ) kinematics depend on the type of food being masticated, but accurate measurements of TMJ motion in horses chewing different feeds have not been published. Hypothesis: The temporomandibular joint has a larger range of motion when horses chew hay compared to pellets. Methods: An optical motion capture system was used to track skin markers on the skull and mandible of 7 horses as they chewed hay and pellets. A virtual marker was created on the midline between the mandibles at the level of the 4th premolar teeth to represent the overall motion of the mandible relative to the skull during the chewing cycle. Results: Frequency of the chewing cycles was lower for hay than for pellets. Excursions of the virtual mandibular marker were significantly larger in all 3 directions when chewing hay compared to pellets. The mean velocity of the virtual mandibular marker during the chewing cycle was the same when chewing the 2 feeds. Conclusions: The range of mediolateral displacement of the mandible was sufficient to give full occlusal contact of the upper and lower dental arcades when chewing hay but not when chewing pellets. Potential relevance: These findings support the suggestion that horses receiving a diet high in concentrate feeds may require more frequent dental prophylactic examinations and treatments to avoid the development of dental irregularities associated with smaller mandibular excursions during chewing. | ||||
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| Publisher | American Medical Association (AMA) | Place of Publication | Editor | ||
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| ISSN | 0425-1644 | ISBN | Medium | ||
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| Notes | doi: 10.2746/042516407X157792 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6513 | ||
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