摘要:

AbstractThe blue duiker is a small, frugivorous, strictly diurnal ruminant that occupies forest with open undergrowth. The social group consists of a ♂‐♀ pair with the young of the last two litters. Pairs seem permanent in small territories adjacent to each other, without any noticeable overlap. The population density is high.The life style adopted by the blue duiker represents an exception among forest ruminants, and appears to be a well adapted response to various ecological pressures, especially pred

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1980.tb01243.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractAdoption of young by unrelated adults is expected to be rare in natural populations, yet a high incidence was observed in a population of Herring Gulls on the Isle of May, Scotland. The means whereby rejection was avoided, and the resulting costs and benefits to adopting parents and adopted chicks, are described.

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1980.tb01244.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractObservations of a single nest‐building female blue tit (Parus caeruleus) supported the hypothesis that increasing proximity of domestic cats (Felis domesticus) to the nest box increases time spent scanning the nest site area. A hypothesised decrease in time in the nest box with increased cat proximity was not confirmed. A reason for this is forwarded, and differences in time spent in/and in the vicinity of the nest box reflecting position of the nest visit in a bout, and threat posed by individual cats are discusse

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1980.tb01245.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

AbstractThis paper describes the system of local dialects in the Corn Bunting in Britain. Each dialect population contains between 30 and 100 males, all males within a dialect sing the same form and number of song types. The Corn Bunting is therefore the first species for which both clear local dialects and a repertoire of song types have been described. The boundaries between dialects have remained in the same position for three years. The origin, maintenance and functional significance of dialects in this species are discussed.

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1980.tb01246.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

Book reviewed in this article:Zeitschriften/Periodicals:Hoogland, J. L.(1979): Aggression, ectoparasitism, and other possible costs of prairie dogZeitschriften/Periodicals:Clayton, D. A., undR. J. Andrew(1979): Phases of inhibition and response during investigation of stimulus change by the domestic chickZeitschriften/Periodicals:Mock, D. W.(1979): Display repertoire shifts and “extramarital” courtship in heronsZeitschriften/Periodicals:Dunbar, R. I. M.(1979): Structure of gelada baboon reproductive units I. Stability of social relationshipsZeitschriften/Periodicals:Jürgens, U.(1979): Vocalization as an emotional indicatorZeitschriften/Periodicals:Pruscha, H., undM. Maurus(1979): Analysis of the temporal structure of primate communicationZeitschriften/Periodicals:Andrew, R. J., undD. A. Clayton(1979): Effects of Testosterone on investigation of stimulus change by the domestic chickZeitschriften/Periodicals:Clutton‐Brock, Th., undS. D. Albon(1979): The roaring of red deer and the evolution of honest advertisementZeitschriften/Periodicals:Peeke, H. V. S., M. H. FiglerundN. Blankenship(1979): Retention and recovery of habituated territorial aggressive behaviour in the three‐spined sticklebackZeitschriften/Periodicals:Brain, P. F., undS. Al‐Maliki(1979): The comparison of effects of simple experimental manipulations on fighting generated by breeding activity and predatory aggression in “TO” strain miceZeitschriften/Periodicals:Bull, C. M.(1979): The function of complexity in the courtship of the grass‐hopper Myrmeleotettix maculatusZeitschriften/Periodicals:Rechten, C., undR. D. Fernald(1979): A sampled randomization test for examining single cells of behavioural transition matricesZeitschriften/Periodicals:Coss, R. G.(1979): Perceptual determinants of gaze aversion by normal and psychotic children: the role of two facing eyesZeitschriften/Periodicals:Caldwell, R. L., undJ. Dingle(1979): The influence of size differential on agonistic encounters in the Mantis ShrimpZeitschriften/Periodicals:Dittus, W. P. J.(1979): The evolution of behaviors regulating density and age‐specific sex ratios in a primate populationZeitschriften/Periodicals:Caro, T. M., R. Roper, M. YoungundG. R. Dank(1979): Inter‐observer reliabilityBücher/Books:Schmidt‐Nielsen, K., ed.(1980): Comparative PhysiologyBücher/Books:Brown, K., undS. J. Cooper, eds.(1979): Chemical Influences on BehaviourBücher/Books:Keenleyside, M. H. A.(1979): Diversity and adaptation in fish behaviourBücher/Books:Grzimeks Tierleben, 3. Ergä

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1980.tb01247.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY