Zur ornithologie der insel Norfolk

Volume: 41Start Page: 319End Page: 33

Statut der „deutschen ornithologischen Gesellschaft zu Berlin”

Volume: 18Start Page: 73End Page: 7

A organização social dos sauís-pretos, (Leontopithecus chrysopygus Mikan), na reserva em Teodoro Sampaio, São Paulo (Primates Callithricidae)

<abstract language="eng">A contribution to the knowledge of the social organization of a population of Golden-rumped or Black-lion tamarin (L. chrysopygus) living in a stripe of natural vegetation in the State Park along the banks of the lower Paranapanema River, in the State of São Paulo, Brazil. Its composition and analysis based on captured groups, number of individuals and their distribuition in the area with concentrations; exchange of adults males, migration of individuals from groups and females home range establishment, indicate an organization which is likely to be matrilinear. The average number of individuals per group or expanded families, in the seven (7) captured groups was 3,57 specimens with a mean body weight in adults of 572,5 grams. In each group there is normally one reproducing couple with a double twin pregnancy in 2/3 (65 to 80%) of the occasions, and the twins are dizygotic. This tends to repetition in multiparous females

Biogeographical and phylogenetic implications of an early Miocene Wren (Aves: Passeriformes: Acanthisittidae) from New Zealand

Available online: 24 Mar 2010A new species and genus of acanthisittid wren (Aves: Passeriformes: Acanthisittidae) is described from the Early Miocene (19-16 Ma) St Bathans Fauna from Otago, New Zealand, based on four fossil bones. The first Tertiary fossil passerine to be described from New Zealand, it is similar in size to New Zealand's smallest extant bird, the Rifleman Acanthisitta chloris. A phylogenetic analysis of 53 osteological characters and 24 terminal taxa, including four suboscines, basal corvoids (Menuridae, Atrichornithidae, Climacteridae, Ptilonorhynchidae, Maluridae, Dasyornithidae, Acanthizidae, Pardalotidae, Meliphagidae), and all seven Recent acanthisittid species, identifies it as the sister group to Acanthisitta. This, the first phylogenetic analysis of the basal passerine groups to use morphological characters, recovers a similar pattern of relationships of basal corvoid taxa to that obtained by recent molecular studies. The analysis also suggests that Acanthisitta chloris and the new species are the most deeply nested taxa within the family, suggesting that the radiation of Recent acanthisittids originated no later than the Early Miocene.Trevor H. Worthy, Suzanne J. Hand, Jacqueline M.T. Nguyen, Alan J.D. Tennyson, Jennifer P. Worthy, R. Paul Scofield, Walter E. Boles, Michael Arche