Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sigrid Hopf"'
Autor:
Detlev Ploog, Sigrid Hopf
Publikováno v:
Primates. 32:111-114
Insects are an essential component of squirrel monkey natural food. Eight of ten socially inexperienced infant squirrel monkeys, during their 2nd and 3rd month of age, directed their attention to living insects or film presentations of moving insects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20596c096fc3bbb1945db003f0977caa
https://doi.org/10.1007/bf02381605
https://doi.org/10.1007/bf02381605
Autor:
Sigrid Hopf, Gerhard Medicus
Publikováno v:
Pedophilia ISBN: 9781461396840
In order to understand human behavior, including adult human sexual behavior with children and adolescents, one cannot neglect humans’ phylogenetic1 heritage, part of which is the result of the evolution of behavior through natural selection. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a19d759713c16182ea609aa43bb9b9
https://doi.org/10.1007/978-1-4613-9682-6_5
https://doi.org/10.1007/978-1-4613-9682-6_5
Autor:
Sigrid Hopf
Publikováno v:
International Journal of Primatology. 2:335-349
This paper deals with the functioning and malfunctioning of maternal behavior in relation to external and social conditions. During developmental studies in captive squirrel monkey groups, 49 mother-infant pairs were observed. There were several case
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb2df32bd5d5c025ee0e44d17a517346
https://doi.org/10.1007/bf02693483
https://doi.org/10.1007/bf02693483
Publikováno v:
Folia Primatologica. 21:225-249
A list of over 100 behavioral units is presented including descriptive definitions. Emphasis is put on the elucidation of overlapping units as well as on different criteria for splitting and lumping of units.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb6d037f32e956401d9963a7e5204492
https://doi.org/10.1159/000155602
https://doi.org/10.1159/000155602
Autor:
Sigrid Hopf, Detlev Ploog
Publikováno v:
Primates. 20:313-316
Five squirrel monkeys survived for 8 to 14.5 years in captivity. The male reached at least 16 years of age. He was considered to be quite aged and was sterile at time of death. Senile plaques were found in his brain. The females had experienced betwe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82d2876bcc8405df7d030bf6d894bd05
https://doi.org/10.1007/bf02373384
https://doi.org/10.1007/bf02373384
Autor:
Sigrid Hopf, Michael Herzog
Publikováno v:
American Journal of Primatology. 7:99-106
Six infant squirrel monkeys were reared in social isolation. They responded differentially to playbacks of two species-specific alarm calls. The reaction to the alarm peep, the warning call to bird predators, was a prompt flight to the mother surroga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44a73e139cb28a89737a9396335d0f8e
https://doi.org/10.1002/ajp.1350070204
https://doi.org/10.1002/ajp.1350070204
Autor:
Michael Herzog, Sigrid Hopf
Publikováno v:
Behaviour. 86:197-214
Abstract This is a contribution to the study of the communicative behaviour in a primate, the squirrel monkey (Saimin). It will be shown whether socially inexperienced infants respond differentially to species-specific vocalizations. Six squirrel mon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf6b8a5a62fc8c9da165f5cdacc61e5e
https://doi.org/10.1163/156853983x00363
https://doi.org/10.1163/156853983x00363
Publikováno v:
Psychologische Forschung. 31:1-41
Zehn Totenkopf-Affenkinder, die in gemischten Gruppen aufwuchsen, wurden in einer Verlaufsuntersuchung uber 1200 Std beobachtet. Die Ontogenese des Verhaltens von der Geburt bis ins vierte Lebensjahr hinein wird in sieben Phasen beschrieben. Neben de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2da1aeeca1b644a1dd061395bf8e842a
https://doi.org/10.1007/bf00422383
https://doi.org/10.1007/bf00422383
Publikováno v:
Primates. 8:229-245
Behavior patterns during play, sexual role differentiation dependant on age, and mating behavior in squirrel monkeys living in laboratory groups are described. While juveniles prefer mutual play (wrestling, contact play) adults or subadults most ofte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::420ad331cafe3933ed45da5cfb245ed8
https://doi.org/10.1007/bf01731039
https://doi.org/10.1007/bf01731039
Autor:
Sigrid Hopf
Publikováno v:
Folia Primatologica. 17:363-388
The purpose of this paper is to describe, examine, and discuss a relevant method for quantifying social behavior. The investigation is extended to each stage of the study: the process of observation, the different codes (observing, paper recording, c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e17fb34a9e498ff085d05741d38510a
https://doi.org/10.1159/000155455
https://doi.org/10.1159/000155455