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A simple model is used to calculate transpiration and assimilation rates for leaves or canopies. This is then used to investigate interactions between...
Read moreThere is a risk that short-term studies either underestimate disturbance effects because of time-lagged responses, including both time-lagged extincti...
Read moreA quantitative approach to estimating the effects of potential closed areas on fish spawning biomass and yields is presented. The focus for evaluation...
Read moreBy adopting the Habitats Directive (Directive 92/43 of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora) in 1992, the g...
Read moreGermany is generally characterized by intensive agriculture. There is increasing concern about the situation of extensively used meadows and pastures ...
Read moreEnvironmental changes may not always result in rapid changes in species distributions, abundances or diversity. In order to estimate the effects of, f...
Read moreLand-use change is reshaping terrestrial ecosystems world-wide and is recognized as a key driver of biodiversity loss with negative consequences on ec...
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 moreThe authors present a model simulating the effects of the acridid Melanoplus sanguinipes on the yield of spring wheat planted in infested stubble. The...
Read moreUsing the Markowitz mean-value (M-V) portfolio model, we study forest planning looking at arbitration between productivity and risk. By weighting the ...
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