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2 populations of white clover from acid soil and 2 from calcareous soil were grown in partitioned containers of soil, pH 4.6 and 8.2, to give all comb...

Sexual reproduction and natural seed production in Eichhornia crassipes was examined in a total of 19 populations from 2 tropical regions (Lower Amazo...

The Zn and Cu tolerance of populations of Agrostis tenuis, A. stolonifera, Anthoxanthum odoratum, Festuca rubra and F. ovina was tested on root growth...

The basic features of the population dynamics of Musca vetustissima Wlk. in Australia have previously been elucidated from field observations and some...

Until recently, the northern snake-necked turtle (Chelodina rugosa Ogilby, 1890) provided a seasonal source of protein for indigenous communities in t...

Local adaptation is a fundamental assumption in delineating seed zones and developing seed transfer guidelines to safeguard climatic adaptation of tre...

Restoration of degraded grasslands through active revegetation often involves re-establishing populations of native grasses, which must withstand incr...

A computer model was developed simulating the mating behaviour and population increase of adults of Spodoptera littoralis (Boisd.) in an isolated grou...

Earthworm populations were estimated in topsoil stored during opencast mining for coal and in replaced soil. Soil from the surface of storage heaps wa...

Deterministic models predict that susceptible-infective-susceptible (SIS) disease, where there is no immunity to reinfection following recovery, will ...