Search results for "Lemu"

Functional adaptations in the craniofacial morphology of Malagasy primates: shape variations associated with gummivory in the family Cheirogaleidae.

2005

Summary The infraorder Lemuriformes is characterized by a high level of homoplasy that clouds the evolutionary signal. The analysis of the morphological disparity of the Malagasy primates' crania and mandibles demonstrates the high determinism of functional specializations and developmental constraints, regardless of the phylogeny. In the present work, the weight of functional constraints linked to diet — a putative source of homoplasy — is analyzed first at the level of the infraorder Lemuriformes as a whole, and secondly at the level of a single family, the Cheirogaleidae, chosen because it contains taxa with two different diets (omnivory and gummivory). Malagasy primates are characterize…

The Phylogenetic position of Daubentonia madagascariensis (Gmelin, 1788; primates, Strepsirhini) as revealed by chromosomal analysis

2012

One of the major topics in primate evolution is the phylogenetic position of the bizarre Daubentonia madagascariensis (DMA, aye-aye). The principal points that have been discussed for many decades are whether the aye-aye is: (i) the sister group of primates; (ii) the sister group of strepsirhines; or (iii) the sister group of lemurs. Very little is known about Daubentonia evolution, particularly on the chromosomal background. The present report focuses on the chromosomal history of this species. We used available chromosome painting data as the main source to identify conserved chromosomes, chromosomal segments and syntenic associations that have characterized the aye-aye karyotype. The dat…

Debito e ingratitudine: la sovversione del tumulo donum nelle Troades di Seneca

2017

Il contributo indaga il sovvertimento delle dinamiche di dono e debito nelle Troades senecane, alla luce dei modelli etici illustrati nel De beneficiis. Nella tragedia, Seneca riscrive la relazione di reciprocità vigente tra Achille e i Greci secondo il modello analogico del debito. L’ombra di Achille, infatti, accusa gli Achei di sottrarre gli honores dovuti ai suoi Mani, dando prova di ingratitudine. Come praemium, l’eroe esige quindi il sacrificio di Polissena, che rappresenta un sovvertimento della pratica rituale dei doni ai morti. Per comprendere il significato antropologico di questa lettura, si opererà un confronto ragionato tra la rappresentazione della prassi cultuale con cui a Ro…

Brain, Sociobiology, and Evolution in Primates

1981

Socialization in primates can be understood essentially as a function of the information processing ability of the CNS, which can be roughly measured in terms of relative brain size in closely related species groups. Both the cephalization constant (Hemmer 1971, 1974) and the extra neuron number (Jerison 1964, 1973) may be used for relevant quantification, as there is a highly significant correlation of both parameters in primates (7 ape species: r = 0.97, 20 Old World monkey species: r = 0.99; Hemmer 1978). The author has shown in a previous paper (Hemmer 1979) close negative correlations of relative brain size and the social organization as expressed in troop size (r = −0.92) and of relat…

Kalmbergin kartasto R V : List 11

1855

Book Review : Damien Janos. Avicenna on the Ontology of Pure Quiddity

2022

Kaupungista maalle : miten lapset kokevat maallemuuton

2005

Inhimillisiä tarinoita satavuotiaan Suomen maaseudulta

2017

Kirja-arvio teoksesta Jenni Räinä ja Vesa Ranta: Reunalla – Tarinoita Suomen tyhjeneviltä sivukyliltä. Like, Helsinki, 2017. 263 sivua. ISBN 978-952-01-1648-4 nonPeerReviewed