Now showing items 21-30 of 131
Effects of host switching on gypsy moth ( Lymantria dispar (L.)) under field conditions
(Springer-Verlag, 1994-03)
Effects of various single and two species diets on the performance of gypsy moth ( Lymantria dispar (L.)) were studied when this insect was reared from hatch to population on intact host trees in the field. The tree species ...
Supporting Behavioural Entrepreneurs: Using the Biodiversity-Health Relationship to Help Citizens Self-Initiate Sustainability Behaviour
(Springer Nature, 2019-06-12)
Techno-industrial societies face biophysical limits and the consequences of disrupting Earth’s ecosystems. This creates a new behavioural context with an unmistakable demand: Citizens of such societies must turn from seeking ...
Nitrate deposition in northern hardwood forests and the nitrogen metabolism of Acer saccharum marsh
(Springer-Verlag, 1996-10)
It is generally assumed that plant assimilation constitutes the major sink for anthropogenic Nitrate NO 3 − deposited in temperate forests because plant growth is usually limited by nitrogen (N) availability. Nevertheless, ...
The effects of water exchange rate and density on yield of the walking catfish, Clarias fuscus
(Elsevier, 1989-06)
High stocking densities (600 fish/m3) of walking catfish resulted in slightly higher mortality rate, no difference in growth rate, and a much higher yield than low density stocking (300 fish/m3). Water flow rate (10, 5, ...
Using normative scenarios in landscape ecology
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-05)
The normative landscape scenario is one of many types of scenario methods that are used by landscape ecologists. We describe how normative landscape scenarios are different from other types and how these differences create ...
Addressing Biofuel GHG Emissions in the Context of a Fossil-Based Carbon Cap
(2009-10-01)
Renewable fuels have been promoted as a climate solution as well as for their energy security and domestic economic benefits. Analysts often assume that, other than process emissions, biofuels emit no net CO2 because their ...
The Aesthetics of Horticulture: Neatness as a Form of Care
(American Society for Horticultural Science, 1988)
Perceived care of the landscape is a primary determinant of landscape attractiveness. Care is typically recognized in the neatness of a landscape; evennes of turn or crop color, placement of ornamental plants, use of fences ...
Management of Farm Woodlots and Windbreaks: Some Psychological and Landscape Patterns
(Baywood Publishing Company, Inc., 1993)
This article reports on the relationship between measures of farmers' conservation attitudes and motivations on the one hand, and their self-reported and observed management of windbreaks and woodlots on the other. The ...
Volunteer Environmental Stewardship and Affective Labour in Philadelphia
(2018-03-26)
Recent research has critically evaluated the rapid growth of volunteer urban environmental stewardship. Framings of this phenomenon have largely focused upon environmentality and/or neoliberal environments, unfortunately ...
Models of coupled population oscillators using 1-D maps
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1998-08)
Coupled population oscillators are investigated with the use of coupled logistic maps. Two forms of coupling are employed, reproductive and density. Three biologically distinct situations are investigated: populations ...