Equine and Animal Cognition Reference Database -- Query Results

	Equine and Animal Cognition Reference Database Home \| Show All \| Simple Search \| Advanced Search	Login Quick Search: Field: contains: ...
	91-100 of 103 records found matching your query:

Search & Display Options

Select All Deselect All

<< 1 2 3 4 5 6 7 8 9 10 >> [11–11]

List View

Citations

Details

	Records
	Author	Fichtel, C.
	Title	Reciprocal recognition of sifaka ( Propithecus verreauxi verreauxi) and redfronted lemur ( Eulemur fulvus rufus) alarm calls			Type	Journal Article
	Year	2004	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	7	Issue	1	Pages	45-52
	Keywords	Animals; Arousal; Escape Reaction; Female; Lemuridae/physiology/psychology; Male; Papio; Recognition (Psychology); Strepsirhini/physiology/psychology; Tape Recording; *Vocalization, Animal
	Abstract	Redfronted lemurs ( Eulemur fulvus rufus) and Verreaux's sifakas ( Propithecus verreauxi verreauxi) occur sympatrically in western Madagascar. Both species exhibit a so-called mixed alarm call system with functionally referential alarm calls for raptors and general alarm calls for carnivores and raptors. General alarm calls also occur in other contexts associated with high arousal, such as inter-group encounters. Field playback experiments were conducted to investigate whether interspecific recognition of alarm calls occurs in both species, even though the two species rarely interact. In a crossed design, redfronted lemur and sifaka alarm calls were broadcast to individuals of both species, using the alarm call of chacma baboons ( Papio cynocephalus) as a control. Both species responded with appropriate escape strategies and alarm calls after playbacks of heterospecific aerial alarm calls. Similarly, they reacted appropriately to playbacks of heterospecific general alarm calls. Playbacks of baboon alarm calls elicited no specific responses in either lemur species, indicating that an understanding of interspecific alarm calls caused the responses and not alarm calls in general. Thus, the two lemur species have an understanding of each other's aerial as well as general alarm calls, suggesting that even in species that do not form mutualistic associations and rarely interact, common predator pressure has been sufficient for the development of heterospecific call recognition.
	Address	Abteilung Neurobiologie, Deutsches Primatenzentrum, Kellnerweg 4, 37077 Gottingen, Germany. fichtel@eva.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:12827548			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2565
Permanent link to this record



	Author	Imura, T.; Tomonaga, M.
	Title	Perception of depth from shading in infant chimpanzees ( Pan troglodytes)			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	4	Pages	253-258
	Keywords	Age Factors; Animals; Contrast Sensitivity/physiology; Depth Perception/physiology; Discrimination Learning/physiology; Female; Male; Pan troglodytes/growth & development/physiology/*psychology; Pattern Recognition, Visual/physiology
	Abstract	We investigated the ability to perceive depth from shading, one of the pictorial depth cues, in three chimpanzee infants aged 4-10 months old, using a preferential reaching task commonly used to study pictorial depth perception in human infants. The chimpanzee infants reached significantly more to three-dimensional toys than to pictures thereof and more to the three-dimensional convex than to the concave. Furthermore, two of the three infants reached significantly more to the photographic convex than to the photographic concave. These infants also looked longer at the photographic convex than the concave. Our results suggest that chimpanzees perceive, at least as early as the latter half of the first year of life, pictorial depth defined by shading information. Photographic convexes contain richer information about pictorial depth (e.g., attached shadow, cast shadow, highlighted area, and global difference in brightness) than simple computer-graphic graded patterns. These cues together might facilitate the infants' perception of depth from shading.
	Address	Graduate School of Humanities, Kwansei Gakuin University, Uegahara, Nishinomiya, Hyogo 662-8501, Japan
	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:14610661			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2550
Permanent link to this record



	Author	Hare, J.F.; Sealy, S.G.; Underwood, T.J.; Ellison, K.S.; Stewart, R.L.M.
	Title	Evidence of self-referent phenotype matching revisited: airing out the armpit effect			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	1	Pages	65-68
	Keywords	Alleles; Animals; Birds; Cricetinae; Dogs; Humans; Invertebrates; Learning; Odors; Pedigree; Phenotype; Recognition (Psychology); Self Psychology; *Social Behavior
	Abstract
	Address	Department of Zoology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada. harejf@cc.umanitoba.ca
	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:12701614			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2576
Permanent link to this record



	Author	Neff, B.D.; Sherman, P.W.
	Title	Nestling recognition via direct cues by parental male bluegill sunfish ( Lepomis macrochirus)			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	2	Pages	87-92
	Keywords	Animals; Animals, Wild; Male; Ovum; Parasites; Perception; Perciformes; Pheromones; Recognition (Psychology); Sexual Behavior, Animal; *Smell; Social Behavior
	Abstract	Parental care can be costly to a parent in terms of both time and energy invested in the young. In species with cuckoldry or brood parasitism not all of the young under a parent's care are necessarily offspring. In such cases, distinguishing between kin and non-kin, and investing only in the former (nepotism), can be advantageous. Bluegill sunfish ( Lepomis macrochirus) are characterized by paternal care and cuckoldry, and care-providing males appear to show nepotistic behaviours. Here, we investigated nestling recognition in bluegill, determining whether parental males can differentiate between young from their own nest (familiar and related) and young from non-neighbouring nests (unfamiliar and unrelated) using (1) visual and chemical cues, and (2) chemical cues only. In the first experiment, wild-caught parental males were presented with samples of eggs or fry (newly hatched eggs) collected from their own nest or a foreign nest and placed on opposite sides of an aquarium. The time these parental males spent associating with each sample, and their “pecking” behaviours (indicating cannibalism), were recorded. Parental males showed no preference between eggs from their own nest and eggs from a non-neighbouring nest, but they preferred to associate with fry from their own nest over foreign fry. There also was a positive relationship between male body size and the time spent associated with fry from their own nest. Parental males pecked at foreign fry more than 5 times as often as fry from their own nest, though this difference was not statistically significant. In the second experiment, fry that were collected from the nest of a wild-caught parental male or a non-neighbouring nest were placed in different containers and the water from each was dripped into opposite ends of an aquarium. The time the male spent on each side was recorded. In this case, parental males spent more time near the source of water conditioned by unrelated fry, but there was a positive relationship between male condition (fat reserves) and the time he spent near the source of water conditioned by fry from his own nest. Results confirm that chemicals cue nestling recognition by parental male bluegill.
	Address	Department of Biology, University of Western Ontario, London, ON N6A 5B7, Canada. bneff@uwo.ca
	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:12687419			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2577
Permanent link to this record



	Author	Mateo, J.M.; Johnston, R.E.
	Title	Kin recognition by self-referent phenotype matching: weighing the evidence			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	1	Pages	73-76
	Keywords	Animals; Brain/embryology; Cricetinae/embryology; Humans; Learning; Odors; Phenotype; Recognition (Psychology); Reproducibility of Results; Research Design; Self Psychology; *Smell
	Abstract
	Address	Department of Psychology, Cornell University, NY 14853-7601, Ithaca, USA. jmateo@uchicago.edu
	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:12658537			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2579
Permanent link to this record



	Author	Hauber, M.E.; Sherman, P.W.
	Title	Designing and interpreting experimental tests of self-referent phenotype matching			Type	Journal Article
	Year	2003	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	6	Issue	1	Pages	69-71
	Keywords	Animals; Birds; Body Constitution; Color; Humans; Pedigree; Perception; Phenotype; Recognition (Psychology); Research Design; *Self Psychology
	Abstract
	Address	Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853-2702, 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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12658536			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2580
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	Goto, K.; Lea, S.E.G.; Dittrich, W.H.
	Title	Discrimination of intentional and random motion paths by pigeons			Type	Journal Article
	Year	2002	Publication	Animal Cognition	Abbreviated Journal	Anim. Cogn.
	Volume	5	Issue	3	Pages	119-127
	Keywords	Animals; Columbidae; Discrimination Learning; *Motion Perception; Recognition (Psychology)
	Abstract	Twelve pigeons ( Columba livia) were trained on a go/no-go schedule to discriminate between two kinds of movement patterns of dots, which to human observers appear to be “intentional” and “non-intentional” movements. In experiment 1, the intentional motion stimulus contained one dot (a “wolf”) that moved systematically towards another dot as though stalking it, and three distractors (“sheep”). The non-intentional motion stimulus consisted of four distractors but no stalker. Birds showed some improvement of discrimination as the sessions progressed, but high levels of discrimination were not reached. In experiment 2, the same birds were tested with different stimuli. The same parameters were used but the number of intentionally moving dots in the intentional motion stimulus was altered, so that three wolves stalked one sheep. Despite the enhanced difference of movement patterns, the birds did not show any further improvement in discrimination. However, birds for which the non-intentional stimulus was associated with reward showed a decline in discrimination. These results indicated that pigeons can discriminate between stimuli that do and do not contain an element that human observer see as moving intentionally. However, as no feature-positive effect was found in experiment 1, it is assumed that pigeons did not perceive or discriminate these stimuli on the basis that the intentional stimuli contained a feature that the non-intentional stimuli lacked, though the convergence seen in experiment 2 may have been an effective feature for the pigeons. Pigeons seem to be able to recognise some form of multiple simultaneously goal-directed motions, compared to random motions, as a distinctive feature, but do not seem to use simple “intentional” motion paths of two geometrical figures, embedded in random motions, as a feature whose presence or absence differentiates motion displays.
	Address	School of Psychology, University of Exeter, Washington Singer Laboratories, Exeter EX4 4QG, UK. K.Goto@exeter.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	1435-9448	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:12357284			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2601
Permanent link to this record



	Author	Bates, L.A.; Sayialel, K.N.; Njiraini, N.W.; Poole, J.H.; Moss, C.J.; Byrne, R.W.
	Title	African elephants have expectations about the locations of out-of-sight family members			Type	Journal Article
	Year	2008	Publication	Biology Letters	Abbreviated Journal	Biol Lett
	Volume	4	Issue	1	Pages	34-36
	Keywords	elephants, olfaction, urine, individual recognition
	Abstract	Monitoring the location of conspecifics may be important to social mammals. Here, we use an expectancy-violation paradigm to test the ability of African elephants (Loxodonta africana) to keep track of their social companions from olfactory cues. We presented elephants with samples of earth mixed with urine from female conspecifics that were either kin or unrelated to them, and either unexpected or highly predictable at that location. From behavioural measurements of the elephants' reactions, we show that African elephants can recognize up to 17 females and possibly up to 30 family members from cues present in the urine-earth mix, and that they keep track of the location of these individuals in relation to themselves.
	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	yes
	Call Number	Equine Behaviour @ team @			Serial	4332
Permanent link to this record



	Author	Dreier, S.; van Zweden, J.S.; D'Ettorre, P.
	Title	Long-term memory of individual identity in ant queens			Type	Journal Article
	Year	2007	Publication	Biology Letters	Abbreviated Journal	Biol Lett
	Volume	3	Issue	5	Pages	459-462
	Keywords	Aggression; Animals; Ants/physiology; Conditioning, Operant; Evolution; Female; Memory; *Recognition (Psychology); Social Dominance
	Abstract	Remembering individual identities is part of our own everyday social life. Surprisingly, this ability has recently been shown in two social insects. While paper wasps recognize each other individually through their facial markings, the ant, Pachycondyla villosa, uses chemical cues. In both species, individual recognition is adaptive since it facilitates the maintenance of stable dominance hierarchies among individuals, and thus reduces the cost of conflict within these small societies. Here, we investigated individual recognition in Pachycondyla ants by quantifying the level of aggression between pairs of familiar or unfamiliar queens over time. We show that unrelated founding queens of P. villosa and Pachycondyla inversa store information on the individual identity of other queens and can retrieve it from memory after 24h of separation. Thus, we have documented for the first time that long-term memory of individual identity is present and functional in ants. This novel finding represents an advance in our understanding of the mechanism determining the evolution of cooperation among unrelated individuals.
	Address	Institute of Biology, Department of Population Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark. sdreier@bi.ku.dk
	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	1744-9561	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17594958			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4649
Permanent link to this record

Select All Deselect All

<< 1 2 3 4 5 6 7 8 9 10 >> [11–11]

Details

CQL Search | Library Search | Show Record | Extract Citations

Help