RETURN OF THE VESTIBULAR FUNCTION FOLLOWING STREPTOMYCIN TOXEMIA

Of 62 patients given 2 gm. of streptomycin daily for an average of 110 days, 42 had complete loss of vestibular response to caloric stimulation. In the great majority of cases, response returned in varying degrees over a period of two years. The incidence of loss of response was higher among patients who weighed less than 125 pounds than among heavier patients, and it was higher among patients over 45 years of age than among those who were younger. Response returned earlier in the younger patients than in the older.Of 215 patients given 1 gm. of streptomycin for an average of 110 days, 18 had complete loss of vestibular response to stimulation. Sixteen regained response within a year, one in 17 months, and one was lost to study.     

Incorporating benthic community changes into hydrochemical-based projections of coral reef calcium carbonate production under ocean acidification

Coral Reefs - The existence of coral reefs is dependent on the production and maintenance of calcium carbonate (CaCO3) framework that is produced through calcification. The net production of CaCO3...     

Can we rely on forest reserves for primate conservation?

Tropical forests contain much of the world's biodiversity, yet their rate of decline is increasing. The strategy most frequently used to protect this biodiversity is to make parks and reserves. While there is a great deal of research on the effectiveness of parks for protecting biodiversity, there is little research on how well extractive reserves conserve biodiversity. Here, we evaluate the effectiveness of four forest reserves in western Uganda at maintaining populations of primates and compare census data from the reserves to data from the neighbouring well‐protected Kibale National Park. The relative abundance of the five most common primates in the park was approximately four times that of the forest reserves. In the forest reserves, evidence of new human encroachment was seen every 500 m, while in the park it was seen every 100,000 m. Two recommendations emerge from our research: (i) for forest reserves, such as those studied here, to have conservation value for primates, extraction must be reduced and (ii) until the long‐term viability of the populations in forest reserves can be ascertained, they should not be considered in estimates of the sizes of endangered species protected ranges.