Three lymphoblastoid cell lines, of human, squirrel monkey, and marmoset origin, all transformed by the same strain of Epstein-Barr virus (EBV), differed markedly in their content of infectious virus. Single cell clones were obtained from each line to learn whether these differences were dependent upon factors shared by all cells in each line or upon factors present only in a proportion of the ...

The cellular responses of the cone-dominant ground squirrel retina to retinal detachment were examined and compared to those in rod-dominant species. Retinal detachments were made in California ground squirrels. The retinas were prepared for light, electron, and confocal microscopy. Tissue sections were labeled with antibodies to cone opsins, rod opsin, glial fibrillary acidic protein (GFAP), v...

1. Urban areas contain high densities of non-native species, which in the UK include the domestic cat Felis catus (Linnaeus 1758) and the grey squirrel Sciurus carolinensis (Gmelin 1788). The direct predation effects of domestic cats on prey populations attract intense debate, and such influences of the nest-predatory grey squirrel are receiving increasing attention. In contrast, theory predict...

SIR, – There is increasing evidence that squirrel pox disease is the principal cause of the rapid decline of the red squirrel (Sciurus vulgaris) in England (Rushton and others 2006). However, relatively little is known about other infectious agents that may adversely affect this endangered species. Prospective investigations of squirrel pox and other diseases of the red squirrel are now support...

Microelectrode multiunit mapping techniques were used to determine the somatotopic organization of postcentral parietal cortex in the squirrel monkey Saimiri sciurus. Recordings were largeLy confined to architectonic areas 3b and 1. Results were compared to those from similar studies of owl (Merzenich et al., '78) and macaque (Nelson et al., '80) monkeys. As in these previous investigations, se...

1. Aims This section sets out to answer the second aim of this study, namely:-ii) To determine qualitatively and quantitatively the food eaten by that population,. The information presented in this section (unless otherwise stated) has been obtained from the Study Block (see Section II) by the methods described below. The previous section, which considered the population aspects, formed an esse...