Mortality among voles (Microtus agrestis) at Lake Vyrnwy, Montgomeryshire in 1936–9

Abstract

The Solomon Islands are entirely clothed in tropical rain forest except for small areas of probably anthropogenous grasslands and heaths which occur in regions with a seasonal climate. The main features of the vegetation are described and related to the exceptionally wet climate of the archipelago. The extensive areas which carry thickets of small trees and climber tangles instead of high forest are thought due to the combined influence of man, earthquake, landslip and cyclone. Many species are shown to have wide ecological amplitudes.