摘要:

Amazonian lowland rain forests are complex three‐dimensional formations consisting of a variety of arboreal and terrestrial habitats. The small mammal faunas, particularly of arboreal habitats, are poorly studied, and field research generally has been limited to a few faunal inventories. We sampled the terrestrial and arboreal small mammal fauna in two floodplain forest study zones at Reserva Cuzco Amazonico, southeastern Peru, by removal trapping for 12 consecutive days in dry (June‐July 1989) and rainy seasons (January‐February 1990). Nineteen taxa of marsupials and rodents were captured. Small mammals were more abundant in the rainy season than in the dry season, but the relative proportions of the 11 most abundant species remained stable between seasons and study zones. Most species showed no decline in capture rates through the 12‐day period, indicating that either population densities were high or animals were quite mobile. The small mammal fauna exhibited strong vertical stratification; among the 11 most abundant species, four exhibited strong biases toward terrestrial and five toward above‐ground captures. The distinct arboreal small mammal community is grossly underrepresented if traps are placed only at gro

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1995.tb00334.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

The external morphology and anatomy of the Antarctic nudibranchsTritonia voraxOdhner, 1926, andTritonia antarcticaPfeffer in Martens&Pfeffer, 1886, is redescribed in detail and compared with other nominal tritoniids from the Antarctic and Subantarctic waters.Tritonia appendiculataEliot, 1905,T. challengerianaEliot, 1907a, non Bergh, 1884,T. chalkngerianaOdhner 1926, non Bergh, 1884, andMarionia cmullataVicente&Arnaud 1974, non (Couthouy, in Gould 1852), are shown to be synonymous withT. antarctica.OnlyTritonia antarcticais a true High Antarctic species, with a distribution around the continental shelf, Antarctic Peninsula and South Georgia.T. voraxis confined to South Georgia and Subantarctic waters.

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1995.tb00335.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

A comprehensive study of the anatomy, ecology and distribution of the orthurethran genusDraparnaudiaconfirms its family‐group status, and suggests a probable sister‐group relationship with another Pacific family, the Partulidae; its previous position as a subfamily of the Enidae is refuted.Draparnaudiais endemic to New Caledonia, but records from the New Hebrides are thought to result from introductions. A total of six species are recognized in the taxonomic revision, including two new species. Spermatophores are recorded for the first t

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1995.tb00336.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1995.tb00334a.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY