|
Records |
Links |
|
Author |
Reluga, T.C.; Viscido, S. |
|
|
Title |
Simulated evolution of selfish herd behavior |
Type |
Journal Article |
|
Year |
2005 |
Publication |
Journal of Theoretical Biology |
Abbreviated Journal |
J. Theor. Biol. |
|
|
Volume |
234 |
Issue |
2 |
Pages |
213-225 |
|
|
Keywords |
Selfish herd; Behavior; Evolution; Predation risk |
|
|
Abstract |
Single species aggregations are a commonly observed phenomenon. One potential explanation for these aggregations is provided by the selfish herd hypothesis, which states that aggregations result from individual efforts to reduce personnel predation risk at the expense of group-mates. Not all movement rules based on the selfish herd hypothesis are consistent with observed animal behavior. Previous work has shown that herd-like aggregations are not generated by movement rules limited to local interactions between nearest neighbors. Instead, rules generating realistic herds appear to require delocalized interactions. To date, it has been an open question whether or not the necessary delocalization can emerge from local interactions under natural selection. To address this question, we study an individual-based model with a single quantitative genetic trait that controls the influence of neighbors as a function of distance. The results indicate that predation-based selection can increase the influence of distant neighbors relative to near neighbors. Our results lend support for the idea that selfish herd behavior can arise from localized movement rules under natural selection. |
|
|
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 |
553 |
|
Permanent link to this record |
|
|
|
|
Author |
Levin, L.E.; Grillet, M.E. |
|
|
Title |
[Diversified leadership: a social solution of problems in schools of fish] |
Type |
Journal Article |
|
Year |
1988 |
Publication |
Acta Cientifica Venezolana |
Abbreviated Journal |
Acta Cient Venez |
|
|
Volume |
39 |
Issue |
2 |
Pages |
175-180 |
|
|
Keywords |
Animals; Fishes; *Leadership; Reversal Learning/*physiology; *Social Behavior |
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
Spanish |
Summary Language |
|
Original Title |
Liderazgo diversificado: una solucion social de problemas en el cardumen |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0001-5504 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:3251383 |
Approved |
no |
|
|
Call Number |
|
Serial |
2045 |
|
Permanent link to this record |
|
|
|
|
Author |
Dugatkin, L.A.; Godin, G.J. |
|
|
Title |
Predator inspection, shoaling and foraging under predation hazard in the Trinidadian guppy,Poecilia reticulata |
Type |
Journal Article |
|
Year |
1992 |
Publication |
Environmental Biology of Fishes |
Abbreviated Journal |
|
|
|
Volume |
34 |
Issue |
3 |
Pages |
265-276 |
|
|
Keywords |
Antipredation – Social group – Feeding – Predation risk – Trade-off – Fish |
|
|
Abstract |
Guppies,Poecilia reticulata, living in stream pools in Trinidad, West Indies, approached a potential fish predator (a cichlid fish model) in a tentative, saltatory manner, mainly as singletons or in pairs. Such behavior is referred to as predator inspection behavior. Inspectors approached the trunk and tail of the predator model more frequently, more closely and in larger groups than they approached the predator's head, which is presumably the most dangerous area around the predator. However, guppies were not observed in significantly larger shoals in the stream when the predator model was present. In a stream enclosure, guppies inspected the predator model more frequently when it was stationary compared to when it was moving, and made closer inspections to the posterior regions of the predator than to its head. Therefore, the guppies apparently regarded the predator model as a potential threat and modified their behavior accordingly when inspecting it. Guppies exhibited a lower feeding rate in the presence of the predator, suggesting a trade-off between foraging gains and safety against predation. Our results further suggest that predator inspection behavior may account for some of this reduction in foraging. These findings are discussed in the context of the benefits and costs of predator inspection behavior. |
|
|
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 |
2176 |
|
Permanent link to this record |
|
|
|
|
Author |
Tebbich, S.; Bshary, R.; Grutter, A.S. |
|
|
Title |
Cleaner fish Labroides dimidiatus recognise familiar clients |
Type |
Journal Article |
|
Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
|
|
Volume |
5 |
Issue |
3 |
Pages |
139-145 |
|
|
Keywords |
Adaptation, Physiological; Animals; *Evolution; *Fishes; Motivation; *Recognition (Psychology); Social Behavior; Visual Perception |
|
|
Abstract |
Individual recognition has been attributed a crucial role in the evolution of complex social systems such as helping behaviour and cooperation. A classical example for interspecific cooperation is the mutualism between the cleaner fish Labroides dimidiatus and its client reef fish species. For stable cooperation to evolve, it is generally assumed that partners interact repeatedly and remember each other's past behaviour. Repeated interactions may be achieved by site fidelity or individual recognition. However, as some cleaner fish have more than 2,300 interactions per day with various individuals per species and various species of clients, basic assumptions of cooperation theory might be violated in this mutualism. We tested the cleaner L. dimidiatus and its herbivorous client, the surgeon fish Ctenochaetus striatus, for their ability to distinguish between a familiar and an unfamiliar partner in a choice experiment. Under natural conditions, cleaners and clients have to build up their relationship, which is probably costly for both. We therefore predicted that both clients and cleaners should prefer the familiar partner in our choice experiment. We found that cleaners spent significantly more time near the familiar than the unfamiliar clients in the first 2 minutes of the experiment. This indicates the ability for individual recognition in cleaners. In contrast, the client C. striatus showed no significant preference. This could be due to a sampling artefact, possibly due to a lack of sufficient motivation. Alternatively, clients may not need to recognise their cleaners but instead remember the defined territories of L. dimidiatus to achieve repeated interactions with the same individual. |
|
|
Address |
Max Planck Institute for Behaviour and Physiology, 82319 Seewiesen, Germany. tebbich@ss20.mpi-seewiesen.mpg.de |
|
|
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 |
1435-9448 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:12357286 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2599 |
|
Permanent link to this record |
|
|
|
|
Author |
Polyanskaya, A.I.; Ovchinnikov, V.V. |
|
|
Title |
Rate of growth and size of the brain of the horse mackerel |
Type |
Journal Article |
|
Year |
1974 |
Publication |
The Soviet Journal of Ecology |
Abbreviated Journal |
Sov J Ecol |
|
|
Volume |
4 |
Issue |
3 |
Pages |
256-257 |
|
|
Keywords |
Animals; Body Weight; *Brain; Ecology; Fishes/*growth & development; Genetics, Population; Organ Size |
|
|
Abstract |
|
|
|
Address |
|
|
|
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 |
0096-7807 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:4825911 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2708 |
|
Permanent link to this record |
|
|
|
|
Author |
Mormède, P.; Andanson, S.; Aupérin, B.; Beerda, B.; Guémené, D.; Malmkvist, J.; Manteca, X.; Manteuffel, G.; Prunet, P.; van Reenen, C.G.; Richard, S.; Veissier, I. |
|
|
Title |
Exploration of the hypothalamic-pituitary-adrenal function as a tool to evaluate animal welfare |
Type |
Journal Article |
|
Year |
2007 |
Publication |
Physiology & Behavior |
Abbreviated Journal |
Physiol. Behav. |
|
|
Volume |
92 |
Issue |
3 |
Pages |
317-339 |
|
|
Keywords |
Stress; Animal welfare; HPA axis; Glucocorticoid hormones; Acth; Dexamethasone suppression test; Cattle; Pig; Fur animals; Mink; Fox; Poultry; Fish |
|
|
Abstract |
Measuring HPA axis activity is the standard approach to the study of stress and welfare in farm animals. Although the reference technique is the use of blood plasma to measure glucocorticoid hormones (cortisol or corticosterone), several alternative methods such as the measurement of corticosteroids in saliva, urine or faeces have been developed to overcome the stress induced by blood sampling itself. In chronic stress situations, as is frequently the case in studies about farm animal welfare, hormonal secretions are usually unchanged but dynamic testing allows the demonstration of functional changes at several levels of the system, including the sensitization of the adrenal cortex to ACTH and the resistance of the axis to feedback inhibition by corticosteroids (dexamethasone suppression test). Beyond these procedural aspects, the main pitfall in the use of HPA axis activity is in the interpretation of experimental data. The large variability of the system has to be taken into consideration, since corticosteroid hormone secretion is usually pulsatile, follows diurnal and seasonal rhythms, is influenced by feed intake and environmental factors such as temperature and humidity, age and physiological state, just to cite the main sources of variation. The corresponding changes reflect the important role of glucocorticoid hormones in a number of basic physiological processes such as energy metabolism and central nervous system functioning. Furthermore, large differences have been found across species, breeds and individuals, which reflect the contribution of genetic factors and environmental influences, especially during development, in HPA axis functioning. Usually, these results will be integrated with data from behavioral observation, production and pathology records in a comprehensive approach of farm animal welfare. |
|
|
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 |
4454 |
|
Permanent link to this record |
|
|
|
|
Author |
Dow, M.; Ewing, A.W.; Sutherland, I. |
|
|
Title |
Studies on the behaviour of cyprinodont fish. III. The temporal patterning of aggression in Aphyosemion striatum (Boulenger) |
Type |
Journal Article |
|
Year |
1976 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
|
|
Volume |
59 |
Issue |
3-4 |
Pages |
252-268 |
|
|
Keywords |
*Aggression; Animals; *Behavior, Animal; Dominance-Subordination; *Fishes; Humans; Individuality; *Killifishes; Male; Time Factors |
|
|
Abstract |
|
|
|
Address |
|
|
|
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 |
0005-7959 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:1035107 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
4151 |
|
Permanent link to this record |
|
|
|
|
Author |
de Waal, F.B.M. |
|
|
Title |
How animals do business |
Type |
Journal Article |
|
Year |
2005 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
|
|
Volume |
292 |
Issue |
4 |
Pages |
54-61 |
|
|
Keywords |
Animals; Attitude; *Behavior, Animal; Cebus; Cooperative Behavior; *Economics; Emotions; Fishes; Food; Humans; Pan troglodytes; Papio; Social Behavior |
|
|
Abstract |
|
|
|
Address |
Emory University, 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 |
0036-8733 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:15915815 |
Approved |
no |
|
|
Call Number |
refbase @ user @ |
Serial |
166 |
|
Permanent link to this record |
|
|
|
|
Author |
Fricke, H.W. |
|
|
Title |
Individual partner recognition in fish: field studies on Amphiprion bicinctus |
Type |
Journal Article |
|
Year |
1973 |
Publication |
Die Naturwissenschaften |
Abbreviated Journal |
Naturwissenschaften |
|
|
Volume |
60 |
Issue |
4 |
Pages |
204-205 |
|
|
Keywords |
Animals; Cognition; Fishes/*physiology; *Sexual Behavior, Animal |
|
|
Abstract |
|
|
|
Address |
|
|
|
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 |
0028-1042 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:4709357 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
2798 |
|
Permanent link to this record |
|
|
|
|
Author |
Nettle, D. |
|
|
Title |
The evolution of personality variation in humans and other animals |
Type |
Journal Article |
|
Year |
2006 |
Publication |
The American Psychologist |
Abbreviated Journal |
Am Psychol |
|
|
Volume |
61 |
Issue |
6 |
Pages |
622-631 |
|
|
Keywords |
Animals; Birds; *Evolution; Female; Fishes; Humans; Insects; Male; Personality/*genetics/*physiology |
|
|
Abstract |
A comprehensive evolutionary framework for understanding the maintenance of heritable behavioral variation in humans is yet to be developed. Some evolutionary psychologists have argued that heritable variation will not be found in important, fitness-relevant characteristics because of the winnowing effect of natural selection. This article propounds the opposite view. Heritable variation is ubiquitous in all species, and there are a number of frameworks for understanding its persistence. The author argues that each of the Big Five dimensions of human personality can be seen as the result of a trade-off between different fitness costs and benefits. As there is no unconditionally optimal value of these trade-offs, it is to be expected that genetic diversity will be retained in the population. |
|
|
Address |
University of Newcastle, Newcastle, United Kingdom. daniel.nettle@ncl.ac.uk |
|
|
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 |
0003-066X |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
PMID:16953749 |
Approved |
no |
|
|
Call Number |
Equine Behaviour @ team @ |
Serial |
4105 |
|
Permanent link to this record |