Home | << 1 2 3 4 5 6 7 8 9 10 >> [11–15] |
Records | |||||
---|---|---|---|---|---|
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 | Saleh, N.; Chittka, L. | ||||
Title | The importance of experience in the interpretation of conspecific chemical signals | Type | Journal Article | ||
Year | 2006 | Publication | Behavioral Ecology and Sociobiology | Abbreviated Journal | Behav. Ecol. Sociobiol. |
Volume | 61 | Issue | 2 | Pages | 215-220 |
Keywords | |||||
Abstract | Abstract Foraging bumblebees scent mark flowers with hydrocarbon secretions. Several studies have found these scent marks act as a repellent to bee foragers. This was thought to minimize the risk of visiting recently depleted flowers. Some studies, however, have found a reverse, attractive effect of scent marks left on flowers. Do bees mark flowers with different scents, or could the same scent be interpreted differently depending on the bees? previous experience with reward levels in flowers? We use a simple experimental design to investigate if the scent marks can become attractive when bees forage on artificial flowers that remain rewarding upon the bees? return after having depleted them. We contrast this with bees trained in the more natural scenario where revisits to recently emptied flowers are unrewarding. The bees association between scent mark and reward value was tested with flowers scent marked from the same source. We find that the bees experience with the level of reward determines how the scent mark is interpreted: the same scent can act as both an attractant and a repellent. How experience and learning influence the interpretation of the meaning of chemical signals deposited by animals for communication has rarely been investigated. | ||||
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 | 3150 | ||
Permanent link to this record | |||||
Author | Dugatkin, L.A.; Alfieri, M. | ||||
Title | Guppies and the TIT FOR TAT strategy: preference based on past interaction | Type | Journal Article | ||
Year | 1991 | Publication | Behavioral Ecology and Sociobiology | Abbreviated Journal | Behav. Ecol. Sociobiol. |
Volume | 28 | Issue | 4 | Pages | 243-246 |
Keywords | |||||
Abstract | The evolution of cooperation requires either (a) nonrandom interactions, such that cooperators preferentially interact with other cooperators, or (b) conditional behaviors, such that individuals act cooperatively primarily towards other cooperators. Although these conditions can be met without assuming sophisticated animal cognition, they are more likely to be met if animals can remember individuals with whom they have interacted, associate past interactions with these individuals, and base future behavior on this information. Here we show that guppies (Poecilia reticulata), in the context of predator inspection behavior, can identify and remember (for at least 4 h) the “more cooperative” among two conspecifics and subsequently choose to be near these individuals in future encounters. | ||||
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 | 3397 | ||
Permanent link to this record | |||||
Author | Boitani, L. | ||||
Title | Patterns of homesites attendance in two Minnesota wolf packs | Type | Book Chapter | ||
Year | 1982 | Publication | Wolves of the World: Perspectives of Behavior, Ecology and Conservation | Abbreviated Journal | |
Volume | Issue | Pages | |||
Keywords | |||||
Abstract | |||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Noyes, Park Ridge | Place of Publication | New York | Editor | Harrington, F.H.; Paquet, P.C. |
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 @ Boitani1982 | Serial | 6474 | ||
Permanent link to this record | |||||
Author | Jedrzejewski, W.; Schmidt, K.; Theuerkauf, J.; Jedrzejewska, B.; Selva, N.; Zub, K. | ||||
Title | Kill rate and predation by wolves on ungulate populations in Bialowieza primeval forest (Poland) | Type | Journal Article | ||
Year | 2002 | Publication | Ecology | Abbreviated Journal | |
Volume | 83 | Issue | Pages | ||
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 @ Jedrzejewski2002 | Serial | 6481 | ||
Permanent link to this record | |||||
Author | Dugatkin, L.A. | ||||
Title | Bystander effects and the structure of dominance hierarchies | Type | Journal Article | ||
Year | 2001 | Publication | Behavioral Ecology | Abbreviated Journal | Behav. Ecol. |
Volume | 12 | Issue | 3 | Pages | 348-352 |
Keywords | |||||
Abstract | Prior modeling work has found that pure winner and loser effects (i.e., changing the estimation of your own fighting ability as a function of direct prior experience) can have important consequences for hierarchy formation. Here these models are extended to incorporate “bystander effects.” When bystander effects are in operation, observers (i.e., bystanders) of aggressive interactions change their assessment of the protagonists' fighting abilities (depending on who wins and who loses). Computer simulations demonstrate that when bystander winner effects alone are at play, groups have a clear omega (bottom-ranking individual), while the relative position of other group members remains difficult to determine. When only bystander loser effects are in operation, wins and losses are randomly distributed throughout a group (i.e., no discernible hierarchy). When pure and bystander winner effects are jointly in place, a linear hierarchy, in which all positions (i.e., {alpha} to {delta} when N = 4) are clearly defined, emerges. Joint pure and bystander loser effects produce the same result. In principle one could test the predictions from the models developed here in a straightforward comparative study. Hopefully, the results of this model will spur on such studies in the future. | ||||
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 | 10.1093/beheco/12.3.348 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 441 | ||
Permanent link to this record | |||||
Author | Mesterton-Gibbons, M.; Dugatkin, L.A. | ||||
Title | Toward a theory of dominance hierarchies: effects of assessment, group size, and variation in fighting ability | Type | Journal Article | ||
Year | 1995 | Publication | Behavioral Ecology | Abbreviated Journal | Behav. Ecol. |
Volume | 6 | Issue | 4 | Pages | 416-423 |
Keywords | |||||
Abstract | We introduce assessment to the analysis of dominance hierarchies by exploring the effect of an evolutionarily stable fighting rule when there is variation in resource holding potential (RHP) and RHP is not a perfectly reliable predictor of the outcome of a fight. With assessment, the probability of a linear hierarchy decreases with group size but can remain appreciable for groups of up to seven or eight individuals, whereas it decreases virtually to zero if there is no assessment. The probability of a hierarchy that correlates perfectly with RHP is low unless group size is small. | ||||
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 | 10.1093/beheco/6.4.416 | Approved | no | ||
Call Number | refbase @ user @ | Serial | 447 | ||
Permanent link to this record | |||||
Author | Cameron, E. Z.,; Linklater, W. L.,; Stafford, K.J.,; Minot, E. O., | ||||
Title | Social grouping and maternal behaviour in feral horses (Equus caballus): the influence of males on maternal protectiveness | Type | Journal Article | ||
Year | 2003 | Publication | Behavioral Ecology and Sociobiology | Abbreviated Journal | Behav. Ecol. Sociobiol. |
Volume | 53 | Issue | 2 | Pages | 92-101 |
Keywords | |||||
Abstract | The risk of infant injury or mortality influences maternal behaviour, particularly protectiveness. Mares are found in bands with a single stallion or bands with more than one stallion in which paternity is less certain. We investigated maternal behaviour in relation to band type. Mares in bands with more than one stallion were more protective of their foals, particularly when stallions and foals approached one another. The rate of aggression between the stallion and foal was a significant predictor of maternal protectiveness, and mare protectiveness was significantly correlated with reduced reproductive success in the subsequent year. Mares that changed band types with a foal at foot, or had their band type experimentally altered, were more protective of their foal in multi-stallion bands than they were in single-stallion bands. Equids are unusual amongst ungulates in that infanticide and feticide have been reported. Both occur where paternity has been uncertain, and equid social structure is similar to other species in which infanticide has been reported. Stallions benefit from infanticide as the mare has greater reproductive success in the subsequent year. Stallion aggression is a significant modifier of mare behaviour and maternal effort, probably due to the risk of infanticide. | ||||
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 | 458 | ||
Permanent link to this record | |||||
Author | Czaran, T. | ||||
Title | Game theory and evolutionary ecology: Evolutionary Games & Population Dynamics by J. Hofbauer and K. Sigmund, and Game Theory & Animal Behaviour, edited by L.A. Dugatkin and H.K. Reeve | Type | Journal Article | ||
Year | 1999 | Publication | Trends in Ecology & Evolution | Abbreviated Journal | Trends. Ecol. Evol |
Volume | 14 | Issue | 6 | Pages | 246-247 |
Keywords | Game theory; Evolutionary ecology; Population dynamics; Ethology | ||||
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 | 485 | ||
Permanent link to this record | |||||
Author | Dall, Sasha R. X; Houston, Alasdair I.; McNamara, John M. | ||||
Title | The behavioural ecology of personality: consistent individual differences from an adaptive perspective | Type | Journal Article | ||
Year | 2004 | Publication | Ecology Letters | Abbreviated Journal | Ecol. Letters |
Volume | 7 | Issue | Pages | 734-739 | |
Keywords | Adaptive individual differences, behavioural ecology, behavioural syndromes, evolutionary game theory, life history strategies, personality differences, state-dependent dynamic programming | ||||
Abstract | Individual humans, and members of diverse other species, show consistent differences in aggressiveness, shyness, sociability and activity. Such intraspecific differences in behaviour have been widely assumed to be non-adaptive variation surrounding (possibly) adaptive population-average behaviour. Nevertheless, in keeping with recent calls to apply Darwinian reasoning to ever-finer scales of biological variation, we sketch the fundamentals of an adaptive theory of consistent individual differences in behaviour. Our thesis is based on the notion that such .personality differences. can be selected for if fitness payoffs are dependent on both the frequencies with which competing strategies are played and an individual`s behavioural history. To this end, we review existing models that illustrate this and propose a game theoretic approach to analyzing personality differences that is both dynamic and state-dependent. Our motivation is to provide insights into the evolution and maintenance of an apparently common animal trait: personality, which has far reaching ecological and evolutionary implications. |
||||
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 | 494 | ||
Permanent link to this record |