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The known population of ravens in 1946-1960 has greatly declined. The decline is related to the increase in afforestation, which has reduced the area ...

[See FA 38, 1151]. Stomatal conductance (ks), photosynthesis (Fc) and shoot water potential ( psi ) were measured for seedlings of P. sitchensis grown...

A study was made of the effect of secondarily treated effluent on the phosphorus budget of a central Florida freshwater marsh. Three 2000 m2 plots rec...

Soil respiration is commonly determined by measuring the rate of increase in the CO2 concentration within a chamber placed on the soil surface, with a...

Seasonal patterns of forage selection, diet diversity, and habitat use were quantified for livestock managed by the Ngisonyoka Turkana in arid NW Keny...

In a 2nd year F. pratensis ley 5 values for belowground production (BGP) were estimated using 2 field methods: soil coring and ingrowth mesh bags. Soi...

Seeds of Poa annua, P. trivialis and Festuca rubra were sown into gaps within established Lolium perenne swards, planted in systematic pattern to give...

Effects of spring grazing by the greater snow goose (Chen caerulescens atlantica) on hay production were studied in an agricultural area of 283 ha at ...

Previously published literature on the population dynamics of a common arable weed, Chenopodium album, and its interactions with an arable crop, sugar...