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Nuclear DNA content in some species of the genus Cercopithecus (Primates: Cercopithecidae)
No full textData are presented on the nuclear DNA content (Feulgen positive material) in lymphocytes of nine species ofCercopithecus. On the basis of comparisons betweenCercopithecus talapoin (2n=54), the species recently classified as belonging toC. aethiops (C. sabaeus, C. pygerythrus, C. tantalus, C. griseoviridis; 2n=60) andC. cephus (2n=66) it is hypothesized that a correlation exists between the genome length and the DNA content. The variability in DNA content observed between individuals of the same species is critically discussed
Tendenza generale dell'accrescimento dei soggetti
No full textIl capitolo si occupava di presentare e commentare la distribuzione di alcune delle principali variabili antropometriche rilevate sui 1600 soggetti da 6 a 19 anni, che costituiva il campione della popolazione italiana in tutte le regioni italiane
Abstracts 13’ Meeting of the Associazione Primatologica Italiana (Pavia, 1998)
No full textAbstracts of Nationa Congress of Italian Primatologist
DNA content variability in several species of Australian and South-American marsupials
No full textThe evaluation of DNA content in Australian marsupials (Martin & Hayman, 1967; Bick & Jackson, 1967) together with the morphological analysis of the karyotype (which shows a strong variability: 2n between 10 and 32 with modes at 14 and 22) has yielded useful information for the phylogenetic analysis of this order.
In this paper the DNA content, evaluated microdensitometrically as Feulgen-DNA, is compared in 6 species of South American marsupials (Lutreolina crassicaudata Desmarest, Marmosa pusilla Desmarest, Marmosa agilis Burmeister, Didelphis marsupialis Linneus, Didelphis azarae. Temminck, Monodelphis dimidiata Wagner) and 5 species of Australian marsupials (Perameles gunnii Gray, Perameles nasuta Geoffroy, Macropus giganteus Zimmermann, Macropus robustus Gould and Potorous tridactylus Kerr). No data had so far been reported on the nuclear DNA content of the South American species
1871: Darwin sull'origine dell'uomo e l'evoluzione umana
No full textPresentazione del volume di Charles Darwin del 1871, L'origine dell'uom
Abstracts 16’ Meeting of the Associazione Primatologica Italiana (Radicondoli 2003)
No full textAbstracts Primatologica Meetin
Trichromatic Colour Vision: The Choice between Red and Green Colour in Chlorocebus aethiops
No full textTwo main theories try to explain the nature of the selective pressure that led to trichromatic colour vision in primates. The foraging hypothesis suggests that colour discrimination is linked to the detection and selection of food, whereas another hypothesis connects trichromacy to the perception of skin colour signaling in a socio-sexual context. The goal of this study was to investigate which hypothesis could be the most plausible to explain the evolution of trichromatic colour vision. At this purpose the colour preference of a colony of vervet monkeys (Chlorocebus aethiops) hosted at Parco Natura Viva – Garda Zoological Park was investigated. Couples of red and green bags containing the same hidden reward were placed in the outdoor enclosure of vervet monkeys and their choice between red and green objects was recorded in order to investigate the effects of colour cues on object preference in the social context. Moreover, the hand used to retrieve objects was recorded to assess a possible relation between hand preference and colour choices. Results indicate that choices do not seem to be based on object colour. However, monkeys showed a significant right-hand preference to retrieve green objects. In conclusion, these observations seem not to support the foraging hypothesis of the origin of colour vision. Therefore, the role of intraspecific socio-sexual communication could be more plausible for the evolution of trichromacy, but this aspect should be better investigate in future studies
L'eosinofilia citoplasmatica dei neuroni di Purkinje: analisi distribuzionale nelle differenti aree cerebellari.
No full textFirst data on the nuclear DNA content (Feulgen-positive material) of Perodicticus potto
No full textThe nuclear DNA content (Feulgen-positive material) of Perodicticus potto, measured on lymphocytes from six animals of the subspecies edwarsi (Gabon) and potto (Dahomey and Liberia) is quite homogeneous around a mean value of 6·87 ± 0·15 pg. A difference of 1·5% has been found between sexes in each subspecies; the possible relation of this fact to the characteristics of the karyotype is discussed
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