Home << 1 2 3 4 5 6 7 8 9 10 >> [11–20]
List View
 | 
Citations
 | 
Details
   web
Records
Author Syme, G.J.; Syme, L.A.
Title The concept of spatial leadership in farm animals: An experiment with sheep Type Journal Article
Year 1975 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 23 Issue (down) Part 4 Pages 921-925
Keywords
Abstract The concept of spatial leadership as applied to farm animals is discussed with particular emphasis on methodological problems. Using three experimental procedures forced spatial leadership orders were measured in a group of Romney ewes. Comparisons between orders showed the effects of both the different experimental tasks and the social context on leadership structure. Both these variables were found to affect the orders obtained. The results are interpreted in terms of the utility of the concept of spatial leadership in domestic animals and the necessity for more systematic procedural investigations in this area.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 2039
Permanent link to this record
 
 
Author Roberts, J.; Kacelnik, A.; Hunter, M.L.
Title A model of sound interference in relation to acoustic communication Type Journal Article
Year 1979 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 27 Issue (down) Part 4 Pages 1271-1273
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 2124
Permanent link to this record
 
 
Author Richards, S.M.
Title The concept of dominance and methods of assessment Type Journal Article
Year 1974 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 22 Issue (down) Part 4 Pages 914-930
Keywords
Abstract The arrangement of a social group of individuals into a dominance hierarchy is useful in studies of social behaviour only if a wide variety of social interactions can then be predicted. However, definitions of dominance commonly used are numerous and confused. To assess the usefulness of the concept of dominance, studies were made on six breeding groups of rhesus macaques (Macaca mulata) to determine whether different measures of dominance agreed with each other. The measures tested in this study were found to agree. It is therefore suggested that dominance is a useful intervening variable. Possible reasons for the reported lack of correlation between some measures used by other authors are discussed.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 2154
Permanent link to this record
 
 
Author Caraco, T.; Kacelnik, A.; Mesnick, N.; Smulewitz, M.
Title Short-term rate maximization when rewards and delays covary Type Journal Article
Year 1992 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 44 Issue (down) Part 3 Pages 441-447
Keywords
Abstract In nature foragers must exploit resources that vary randomly in both the energy acquired per item (reward) and the time required to pursue, capture and process an item (delay). Furthermore, rewards and delays associated with particular resources may often covary significantly. An analytical model asks how variance-covariance levels for rewards and delays could influence choice of resources when lack of information or cognitive limitation implies that a consumer attempts to maximize its short-term rate of energy gain. Both greater expected reward and reduced expected delay clearly should enhance preference for a resource. The model predicts that increased delay variance and reduced reward-delay covariance should increase a forager's preference for a resource. A forager should be risk-averse towards reward variance when the reward-delay covariance is positive, but should become risk-prone towards reward variance when the reward-delay covariance is negative.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 2113
Permanent link to this record
 
 
Author Walker, S.
Title An introduction to animal cognition : By . Hillsdale, New Jersey: Lawrence Erlbaum (1988). Pp. viii + 328. Price [pound sign]8.95 paperback Type Journal Article
Year 1989 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 37 Issue (down) Part 3 Pages 521-522
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2922
Permanent link to this record
 
 
Author Duncan, P.; Vigne, N.
Title The effect of group size in horses on the rate of attacks by blood-sucking flies Type Journal Article
Year 1979 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 27 Issue (down) Part 2 Pages 623-625
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number refbase @ user @ Serial 763
Permanent link to this record
 
 
Author Clutton-Brock, T.H.; Albon, S.D.; Gibson, R.M.; Guinness, F.E.
Title The logical stag: Adaptive aspects of fighting in red deer (Cervus elaphus L.) Type Journal Article
Year 1979 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 27 Issue (down) Part 1 Pages 211-225
Keywords
Abstract For red deer stags, fighting both has appreciable costs and yields considerable benefits. Up to 6% of rutting stags are permanently injured each year, while fighting success and reproductive success are closely related, within age groups as well as across them. Fighting behaviour is sensitive to changes in the potential benefits of fighting: stags fight most frequently and most intensely where potential benefits are high and tend to avoid fighting with individuals they are unlikely to beat. The relevance of these findings to theoretical models of fighting behaviour is discussed.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number refbase @ user @ Serial 860
Permanent link to this record
 
 
Author Kacelnik, A.
Title The foraging efficiency of great tits (Parus major L.) in relation to light intensity Type Journal Article
Year 1979 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 27 Issue (down) Part 1 Pages 237-241
Keywords
Abstract I report an experiment aimed at testing whether foraging efficiency of great tits is limited by light intensity at the time of the dawn chorus. Captive great tits hunting for prey under different luminance conditions were less successful in finding prey when foraging, hunted for a lower proportion of their time, and handled individual prey items for longer when luminance was under approximately 7 cd/m2. This luminance is not reached in the field until after the time of the dawn chorus, suggesting that in the early morning foraging is limited by light intensity. I suggest that a satisfactory functional explanation of the dawn chorus must take into account the comparatively low foraging opportunity early in the morning, as well as the factors affecting the opportunity for singing and other territorial activities.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 2125
Permanent link to this record
 
 
Author Powell, R.A.
Title The dog: Its domestication and behavior : By . New York: Garland STPM Press (1978). 296 pp. $24.50 Type Journal Article
Year 1979 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.
Volume 27 Issue (down) Part 1 Pages 318-1211
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Serial 2146
Permanent link to this record
 
 
Author Hemelrijk,C. K.; Wantia,J.; Gygax,L.
Title The construction of dominance order: comparing performance of five methods using an individual-based model Type Journal Article
Year 2005 Publication Behaviour Abbreviated Journal Behaviour
Volume 142 Issue (down) 8 Pages 1043-1064
Keywords dominance order, ranking method, agent-based model, statistical method, aggression
Abstract In studies of animal behaviour investigators correlate dominance with all kinds of behavioural

variables, such as reproductive success and foraging success. Many methods are used to

produce a dominance hierarchy from a matrix reflecting the frequency of winning dominance

interactions. These different methods produce different hierarchies. However, it is difficult to

decide which ranking method is best. In this paper, we offer a new procedure for this decision:

we use an individual-based model, called DomWorld, as a test-environment. We choose this

model, because it provides access to both the internal dominance values of artificial agents

(which reflects their fighting power) and the matrix of winning and losing among them and,

in addition, because its behavioural rules are biologically inspired and its group-level patterns

resemble those of real primates. We compare statistically the dominance hierarchy based on

the internal dominance values of the artificial agents with the dominance hierarchy produced

by ranking individuals by (a) their total frequency of winning, (b) their average dominance

index, (c) a refined dominance index, the David`s score, (d) the number of subordinates each

individual has and (e) a ranking method based on maximizing the linear order of the hierarchy.

Because dominance hierarchies may differ depending on group size, type of society, and the

interval of study, we compare these ranking methods for these conditions.We study complete

samples as well as samples randomly chosen to resemble the limitations of observing real

animals. It appears that two methods of medium complexity (the average dominance index

and David`s score) lead to hierarchical orders that come closest to the hierarchy based on

internal dominance values of the agents. We advocate usage of the average dominance index,

because of its computational simplicity.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number refbase @ user @ Serial 445
Permanent link to this record