New Evidence Concerning the Extinction of The Endemic Murid Rattus macleari From Christmas Island, Indian Ocean.

1996 ◽  
Vol 19 (1) ◽  
pp. 19
Author(s):  
J. Pickering ◽  
C.A. Norris

Recently rediscovered material from the collections and archives of the Oxford University Museum throws new light on the disappearance of the endemic rat Rattus macleari from Christmas Island (Indian Ocean), thought to have gone extinct between 1898 and 1908 as a result of diseases introduced by infected individuals of R. rattus. A collection of rats made by H.E. Durham in 1901-1902 reveals that R. macleari was present on Christmas Island at this time, although in lesser numbers than had been the case when the species was described in 1887. Also present in the collection are specimens of R. rattus, together with a number of rats which exhibit a mixture of characters from both R. rattus and R. macleari. Durham's notes on blood parasites in the Christmas Island rats reveal that in 1901-1902 both R. rattus and some specimens of R. macleari were heavily infested with trypanosomes. Notes deposited in the University Museum archives by Hanitsch (1923) show that R. macleari was no longer present on Christmas Island after 1904. As a result of the authors' observations on the Durham collection and the Hanitsch manuscript, it is proposed that the extinction of R. macleari occurred between 1901 and 1904. During this period, there is evidence for extensive interspecific hybridisation between R. macleari and R. rattus. The selective pressure for such hybridisation may have been parasitisation, resulting from the introduction of trypanosome-infected individuals of R. rattus in a cargo of hay in 1899.

2009 ◽  
Vol 36 (2) ◽  
pp. 299-315 ◽  
Author(s):  
Małgosia B. Nowak-kemp

Thomas Bell's collection of tortoises arrived in the Oxford University Museum in 1862 as part of the great benefaction of the Reverend F. W. Hope. The collection's fate, together with the fate of other zoological collections of the University, was closely linked with the research and personal interests of the Heads of Departments in the Museum. The whole collection was at first exhibited in the Museum's Main Court for over thirty years, followed by the removal of most of its specimens to stores, with only a small number left on display. In between, the specimens were the subject of furious custodianship claims, and only in 1956, after nearly a century in Oxford, were the tortoises finally entered in the accession catalogues of the Zoological Collections. The battles and controversies surrounding the collection reflected the changes in teaching and the approach to the natural history collections in the oldest university in the United Kingdom.


1896 ◽  
Vol 59 (353-358) ◽  
pp. 167-169 ◽  

With the co-operation of the Trustees of the University Museum of Basel and Professor Rütimeyer, the author has examined the fossil described by Dr. Robert Wiedersheim in 1878 as Labyrinthodon don Rütimeyeri . The bones are differently interpreted:— The reputed humerus is the interclavicle. The reputed scapula is the humerus. The reputed supra-scapula is the left coracoid. The reputed supra-scapula is the right scapula. The reputed right and left coracoids are the pre-coracoid and coracoid of the right side. The reputed clavicles are the ribs.


2017 ◽  
Vol 2 (3) ◽  
Author(s):  
K. RUBY VANEESA ◽  
Dr. S. AYYAPPA RAJA

Sunetra Gupta was born in Calcutta in 1965 and is an established translator of the poetry of Rabindranath Tagore. She is a well known novelist, essayist and scientist. She is working as Professor of Theoretical Epidemiology at Oxford University in the Department of Zoology. From Princeton University she got graduation in 1987 and from the University of London she received Ph.D. in 1992. Her father, Dhruba Gupta had a profound influence on every view of her thinking


Mediaevistik ◽  
2020 ◽  
Vol 32 (1) ◽  
pp. 333-337
Author(s):  
Natalia Teteriatnikov

The present volume is a tribute to Marlia Mango on the occasion of her retirement from the University service of Kings College, Oxford University. All essays, written by her students, offer the result of their research and express a profound gratitude to their teacher. The essays tackle a wide range of subjects covering a vast territory from Constantinople to its periphery as well as Italy. Chronologically diverse, research materials span from late antiquity to the late Byzantine period.


Sign in / Sign up

Export Citation Format

Share Document