| Records |
| Author |
Lonsdorf, E.V.; Ross, S.R.; Linick, S.A.; Milstein, M.S.; Melber, T.N. |
| Title |
An experimental, comparative investigation of tool use in chimpanzees and gorillas |
Type |
Journal Article |
| Year |
2009 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
| Volume |
77 |
Issue |
5 |
Pages |
1119-1126 |
| Keywords |
chimpanzee; gorilla; Gorilla gorilla gorilla; Pan troglodytes; social structure; tool use |
| Abstract |
Studies of ape tool use have been conducted in captivity since the early 1900s and in the wild since the 1960s. Chimpanzees are the most prolific tool users among the apes, and are known to use more tools than any other nonhuman animal. In contrast, reports of gorilla tool use are rare both in wild and captive settings. Studies of the processes involved in tool use learning have been limited in the wild by the lack of ability to control several unpredictable variables, and in captivity by tool use opportunities that are often presented in non-naturalistic contexts. We attempted to address both of these limitations by providing naïve subjects with a naturalistic tool use device (built to simulate a termite mound) while housed in a more natural social setting to approximate how learning would occur in the wild. Both gorillas and chimpanzees participated in the experiment to allow comparative analyses of acquisition of tool behaviour and the factors that may affect acquisition. Both species showed low frequencies of interaction with the mound in the baseline condition, before baiting with a food reward. Once baited, chimpanzees both attempted and succeeded to extract the reward more quickly than did gorillas. The number of social group members at the mound was significantly higher for chimpanzees than for gorillas and may have affected skill acquisition. We advocate that comparative approaches to skill acquisition and learning are valuable, but that researchers need to be cognizant of species differences in social structure that may affect results. |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0003-3472 |
ISBN |
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Medium |
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Approved |
no |
Call Number  |
Equine Behaviour @ team @ |
Serial |
5858 |
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| Author |
Adelman, M.; Knijnik, J. |
| Title |
Gender and Equestrian Sport |
Type |
Book Whole |
| Year |
2013 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
British Equestrian Sport Canadian Show Jumping Cojones and Rejones Comparative Analysis Equestrian World through a Gender Lens Equestrianism during the 20th Century Fluid Masculinities on Brazilian Dressage Gender Studies and Equestrian Sport Horseracing and Gender in the United Kingdom Juvenile Equine Fiction for Girls Men and Horse Riding Spanish Mounted Bullfight Sport and Culture Swedish Equestrian Sports Women Riding Rodeo in Southern Brazil Women in Equestrian Polo |
| Abstract |
This volume brings together studies from various disciplines of the social sciences and humanities (Anthropology, Sociology, Cultural Studies, History and Literary theory) that examine the equestrian world as a historically gendered and highly dynamic field of contemporary sport and culture. From elite international dressage and jumping, polo and the turf, to the rodeo world of the Americas and popular forms of equestrian sport and culture, we are introduced to a range of issues as they unfold at local and global, national and international levels. Students and scholars of gender, culture and sport will find much of interest in this original look at contemporary issues such as “engendered” (women’s and men’s) dentities/subjectivities of equestrians, representations of girls, horses and the world of adventure in juvenile fiction; the current “feminization” of particular equestrian activities (and where boys and men stand in relation to this); how broad forms of social inequality and stratification play themselves out within gendered equestrian contexts; men and women and their relation to horses within the framework of current discussions on the relation of animals to humans (which may include not only love and care, but also exploitation and violence), among others. Singular contributions that incorporate a wide variety of classic and contemporary theoretical perspectives and empirical methodologies show how horse cultures around the globe contribute to historical and current constructions of embodied “femininities” and “masculinities”, reflecting a world that has been moving “beyond the binaries” while continuing to be enmeshed in their persistent and contradictory legacy. The final chapter makes a brave attempt at synthesizing individual chapters and moving forward from the evidences they provide, to suggest a compelling agenda for future research. |
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Thesis |
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| Publisher |
Springer |
Place of Publication |
Dordrecht |
Editor |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
978-94-007-6823-9 |
Medium |
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Expedition |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6389 |
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| Author |
Strien, A.J.; Swaay, C.A.M.; Termaat, T. |
| Title |
Opportunistic citizen science data of animal species produce reliable estimates of distribution trends if analysed with occupancy models |
Type |
Journal Article |
| Year |
2013 |
Publication |
Journal of Applied Ecology |
Abbreviated Journal |
J Appl Ecol |
| Volume |
50 |
Issue |
6 |
Pages |
1450-1458 |
| Keywords |
Bayesian inference; citizen science; detection; distribution; hierarchical modelling; Jags; monitoring; site occupancy |
| Abstract |
Summary Many publications documenting large-scale trends in the distribution of species make use of opportunistic citizen data, that is, observations of species collected without standardized field protocol and without explicit sampling design. It is a challenge to achieve reliable estimates of distribution trends from them, because opportunistic citizen science data may suffer from changes in field efforts over time (observation bias), from incomplete and selective recording by observers (reporting bias) and from geographical bias. These, in addition to detection bias, may lead to spurious trends. We investigated whether occupancy models can correct for the observation, reporting and detection biases in opportunistic data. Occupancy models use detection/nondetection data and yield estimates of the percentage of occupied sites (occupancy) per year. These models take the imperfect detection of species into account. By correcting for detection bias, they may simultaneously correct for observation and reporting bias as well. We compared trends in occupancy (or distribution) of butterfly and dragonfly species derived from opportunistic data with those derived from standardized monitoring data. All data came from the same grid squares and years, in order to avoid any geographical bias in this comparison. Distribution trends in opportunistic and monitoring data were well-matched. Strong trends observed in monitoring data were rarely missed in opportunistic data. Synthesis and applications. Opportunistic data can be used for monitoring purposes if occupancy models are used for analysis. Occupancy models are able to control for the common biases encountered with opportunistic data, enabling species trends to be monitored for species groups and regions where it is not feasible to collect standardized data on a large scale. Opportunistic data may thus become an important source of information to track distribution trends in many groups of species. |
| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
John Wiley & Sons, Ltd |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0021-8901 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
doi: 10.1111/1365-2664.12158 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6437 |
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| Author |
McGreevy, P.; Yeates, J. |
| Title |
Horses (Equus caballus) |
Type |
Book Chapter |
| Year |
2018 |
Publication |
Companion Animal Care and Welfare |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
animal company; behavioural signs; diseases; domestic horses; euthanasia; human interaction; nutritional requirements |
| Abstract |
Summary Domestic horses are equid members of the class Mammalia, order Perissodactyla, and family Equidae. Horses are obligate herbivores, with nutritional requirements as listed in a table. Adequate space is necessary for exercise, exploration, flight, sharing resources, play, and rolling. Company is essential for all horses, including stallions. Company provides opportunities for mutual grooming and play and allows horses to stand head-to-tail to remove flies. Unhandled horses may respond to humans as they would to predators, whereas handled horses' responses depend on their previous interactions with humans. Horses can suffer from several diseases as listed in another table. The best method of euthanasia of horses is usually sedation followed by either cranial shooting or the injection of an overdose of pentobarbitone into the jugular vein. Behavioural signs of distress can include increased locomotory activity, vigilance behaviours, neighing, snorting, pawing, nibbling walls and buckets, defaecation, rearing, kicking stable walls or doors, and high-stepping 'prancing'. |
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Thesis |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
Wiley Online Books |
Abbreviated Series Title |
Companion Animal Care and Welfare |
| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
9781119333708 |
Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
doi:10.1002/9781119333708.ch13 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
6506 |
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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 |
| Volume |
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 |
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Editor |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0021-8901 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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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 |
Russell, C.L.; Bard, K.A.; Adamson, L.B. |
| Title |
Social referencing by young chimpanzees (Pan troglodytes) |
Type |
Journal Article |
| Year |
1997 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
J. Comp. Psychol. |
| Volume |
111 |
Issue |
2 |
Pages |
185-191 |
| Keywords |
happy & fear messages concerning novel objects from familiar human caregiver, social referencing, 14–41 mo old chimpanzees |
| Abstract |
Social referencing is the seeking of information from another individual and the use of that information to evaluate a situation. It is a well-documented ability in human infants but has not been studied experimentally in nonhuman primates. Seventeen young nursery-reared chimpanzees (14 to 41 months old) were observed in a standard social referencing paradigm in which they received happy and fear messages concerning novel objects from a familiar human caregiver. Each chimpanzee looked referentially at their caregiver, and the emotional messages that they received differentially influenced their gaze behavior and avoidance of the novel objects. It is concluded that chimpanzees can acquire information about their complex social and physical environments through social referencing and can use emotional information to alter their own behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
| Address |
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Thesis |
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| Publisher |
US: American Psychological Association |
Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
1939-2087(Electronic);0735-7036(Print) |
ISBN |
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Medium |
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Expedition |
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Conference |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ 1997-06365-008 |
Serial |
5603 |
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| Author |
Quaresmini, C.; Forrester, G.S.; Spiezio, C.; Vallortigara, G. |
| Title |
Social environment elicits lateralized behaviors in gorillas (Gorilla gorilla gorilla) and chimpanzees (Pan troglodytes) |
Type |
Journal Article |
| Year |
2014 |
Publication |
Journal of Comparative Psychology |
Abbreviated Journal |
|
| Volume |
128 |
Issue |
3 |
Pages |
276-284 |
| Keywords |
*Animal Ethology; *Animal Social Behavior; *Chimpanzees; *Gorillas; *Social Influences; Cerebral Dominance; Lateral Dominance; Social Environments |
| Abstract |
The influence of the social environment on lateralized behaviors has now been investigated across a wide variety of animal species. New evidence suggests that the social environment can modulate behavior. Currently, there is a paucity of data relating to how primates navigate their environmental space, and investigations that consider the naturalistic context of the individual are few and fragmented. Moreover, there are competing theories about whether only the right or rather both cerebral hemispheres are involved in the processing of social stimuli, especially in emotion processing. Here we provide the first report of lateralized social behaviors elicited by great apes. We employed a continuous focal animal sampling method to record the spontaneous interactions of a captive zoo-living colony of chimpanzees (Pan troglodytes) and a biological family group of peer-reared western lowland gorillas (Gorilla gorilla gorilla). We specifically focused on which side of the body (i.e., front, rear, left, right) the focal individual preferred to keep conspecifics. Utilizing a newly developed quantitative corpus-coding scheme, analysis revealed both chimpanzees and gorillas demonstrated a significant group-level preference for focal individuals to keep conspecifics positioned to the front of them compared with behind them. More interestingly, both groups also manifested a population-level bias to keep conspecifics on their left side compared with their right side. Our findings suggest a social processing dominance of the right hemisphere for context-specific social environments. Results are discussed in light of the evolutionary adaptive value of social stimulus as a triggering factor for the manifestation of group-level lateralized behaviors. (PsycINFO Database Record (c) 2016 APA, all rights reserved) |
| Address |
Quaresmini, Caterina: Department of Psychology and Cognitive Sciences, University of Trento, Corso Bettini 31, Rovereto, Italy, 38068, caterina.quaresmini@gmail.com |
| Corporate Author |
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Thesis |
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| Publisher |
American Psychological Association |
Place of Publication |
Us |
Editor |
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| Language |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
1939-2087(Electronic),0735-7036(Print) |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
Equine Behaviour @ team @ 2014-13828-001 |
Serial |
6396 |
| Permanent link to this record |
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| Author |
Khalil, A.M.; Murakami, N.; Kaseda, Y. |
| Title |
Relationship between plasma testosterone concentrations and age, breeding season and harem size in Misaki feral horses |
Type |
Journal Article |
| Year |
1998 |
Publication |
The Journal of veterinary medical science / the Japanese Society of Veterinary Science |
Abbreviated Journal |
J Vet Med Sci |
| Volume |
60 |
Issue |
5 |
Pages |
643-645 |
| Keywords |
Age Factors; Animals; Animals, Wild; *Horses; Japan; Male; Reproduction; Seasons; Sexual Behavior, Animal; Sexual Maturation; *Social Behavior; Testosterone/*blood |
| Abstract |
Jugular vein blood samples were collected from 23 young and sexual mature feral stallions to examine the relationship between plasma testosterone concentration and age, breeding season or harem size. Testosterone concentration increased with the age of the stallions until they formed their own harems, at about 4 to 6 years old. Seasonal variations in testosterone concentrations were observed, and found to be significantly higher (P<0.001) throughout the breeding season than non-breeding season, from 3 years of age. Testosterone levels were correlated with harem size for individual stallions. It can be inferred from these results that there is a relationship between plasma testosterone concentration and age, breeding season and harem size. |
| Address |
Laboratory of Animal Behavioral Science, Faculty of Agriculture, Miyazaki University, Japan |
| Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0916-7250 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:9637303 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
137 |
| Permanent link to this record |
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| Author |
Horner, V.; Whiten, A.; Flynn, E.; de Waal, F.B.M. |
| Title |
Faithful replication of foraging techniques along cultural transmission chains by chimpanzees and children |
Type |
Journal Article |
| Year |
2006 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
| Volume |
103 |
Issue |
37 |
Pages |
13878-13883 |
| Keywords |
Animals; Child, Preschool; Humans; *Imitative Behavior; Pan troglodytes/*psychology |
| Abstract |
Observational studies of wild chimpanzees (Pan troglodytes) have revealed population-specific differences in behavior, thought to represent cultural variation. Field studies have also reported behaviors indicative of cultural learning, such as close observation of adult skills by infants, and the use of similar foraging techniques within a population over many generations. Although experimental studies have shown that chimpanzees are able to learn complex behaviors by observation, it is unclear how closely these studies simulate the learning environment found in the wild. In the present study we have used a diffusion chain paradigm, whereby a behavior is passed from one individual to the next in a linear sequence in an attempt to simulate intergenerational transmission of a foraging skill. Using a powerful three-group, two-action methodology, we found that alternative methods used to obtain food from a foraging device (“lift door” versus “slide door”) were accurately transmitted along two chains of six and five chimpanzees, respectively, such that the last chimpanzee in the chain used the same method as the original trained model. The fidelity of transmission within each chain is remarkable given that several individuals in the no-model control group were able to discover either method by individual exploration. A comparative study with human children revealed similar results. This study is the first to experimentally demonstrate the linear transmission of alternative foraging techniques by non-human primates. Our results show that chimpanzees have a capacity to sustain local traditions across multiple simulated generations. |
| Address |
Centre for Social Learning and Cognitive Evolution, School of Psychology, University of St. Andrews, Fife KY16 9JP, United Kingdom |
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Thesis |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0027-8424 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
PMID:16938863 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
159 |
| Permanent link to this record |
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| Author |
Bonnie, K.E.; de Waal, F.B.M. |
| Title |
Affiliation promotes the transmission of a social custom: handclasp grooming among captive chimpanzees |
Type |
Journal Article |
| Year |
2006 |
Publication |
Primates |
Abbreviated Journal |
Primates |
| Volume |
47 |
Issue |
1 |
Pages |
27-34 |
| Keywords |
Animals; Animals, Zoo/*physiology; Behavior, Animal/*physiology; *Cultural Evolution; Grooming/*physiology; Observation; Pan troglodytes/*physiology; *Social Behavior |
| Abstract |
Handclasp grooming is a unique social custom, known to occur regularly among some, but not all populations of chimpanzees (Pan troglodytes). As with other cultural behaviors, it is assumed that this distinctive grooming posture is learned socially by one individual from another. However, statistical comparisons among factors thought to influence how a behavior spreads within a group have never, to our knowledge, been conducted. In the present study, the origination and spread of handclasp grooming in a group of captive chimpanzees was followed throughout more than 1,500 h of observation over a period of 12 years. We report on the frequency, bout duration, and number and demography of performers throughout the study period, and compare these findings to those reported for wild populations. We predicted that dyads with strong affiliative ties, measured by time spent in proximity to and grooming one another, were likely to develop a handclasp grooming partnership during the study period. A quadratic assignment procedure was used to compare correlations among observed frequencies of grooming and proximity with handclasp grooming in all possible dyads within the group. As predicted, the formation of new handclasp grooming dyads was positively correlated with the rate of overall grooming and proximity within a dyad. In addition, in nearly all dyads formed, at least one individual had been previously observed to handclasp groom. We concluded that affiliation and individual experience determines the transmission of handclasp grooming among captive chimpanzees. |
| Address |
Department of Psychology, Emory University, and Living Links Center, Yerkes National Primate Research Center, GA 30329, USA. kebonni@emory.edu |
| Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0032-8332 |
ISBN |
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Medium |
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Expedition |
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Conference |
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| Notes |
PMID:16142425 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
161 |
| Permanent link to this record |
