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The effects of experimental trampling due to hikers, horses, and motorcycles were studied in a Festuca idahoensis/Poa pratensis meadow and in a Pinus ...
Read moreThe levels of blood urea, Ca, P, Na and K in the lechwe (Kobus leche kafuensis) blood sera were determined and compared with a standard. Blood urea wa...
Read moreChanges in floristic composition were studied in 9 plant stands in the area utilized by lechwe (Kobus leche kafuensis) in Lochinvar National Park, Zam...
Read moreThe geology, topography, soils and climate of the area utilized by lechwe (Kobus leche kafuensis) at Lochinvar National Park, Zambia, are described. T...
Read moreThe frequency and cover of understorey species was determined adjacent to and 10 m distant from trails through 6 forested and 2 meadow ecosystems in t...
Read moreSeed collected from natural stands of P. menziesii growing at (a) 250, (b) 520 and (c) 880 m alt. in Oregon, and from a cross between trees in (a) and...
Read moreTissue m.c. and rates of CO2 and O2 exchange were determined in the laboratory for branches of L. tulipifera collected at 2 week intervals over a 1 yr...
Read more[See FA 38, 1151]. Stomatal conductance (ks), photosynthesis (Fc) and shoot water potential ( psi ) were measured for seedlings of P. sitchensis grown...
Read moreThe known population of ravens in 1946-1960 has greatly declined. The decline is related to the increase in afforestation, which has reduced the area ...
Read moreThe number, length, angle, azimuth and compass bearing of whorl and interwhorl branches were measured in 1973 and 1976 for a plantation of P. sitchens...
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