Now showing items 51-60 of 123
Sources of reactive nitrogen affecting ecosystems in Latin America and the Caribbean: current trends and future perspectives
(Kluwer Academic Publishers; Springer Science+Business Media, Inc., 2006-04-06)
While the amount of reactive nitrogen circulating at the global level has increased markedly in the last century, the effects of this increase are largely seen at the regional level due to interacting ecological and ...
A GIS Model of Subsurface Water Potential for Aquatic Resource Inventory, Assessment, and Environmental Management
(Springer-Verlag; Springer-Verlag New York, Inc., 2003-12)
Biological, chemical, and physical attributes of aquatic ecosystems are often strongly influenced by groundwater sources. Nonetheless, widespread access to predictions of subsurface contributions to rivers, lakes, and ...
Anthropogenic N deposition and the fate of 15 NO 3 − in a northern hardwood ecosystem
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-06)
Human activity has substantially increased atmospheric NO 3 − deposition in many regions of the Earth, which could lead to the N saturation of terrestrial ecosystems. Sugar maple ( Acer saccharum Marsh.) dominated northern ...
If We Build It, People Will Want to Help: The Management of Citizen Participation in Conservation Psychology
(Society for Human Ecology, 2003)
When envisioning how conservation psychology might progress, three themes emerge:
1. Use multiple motives. People participate for many reasons, and conservation psychology should use them all. Significant among these ...
Assessing Alternative Futures of Agriculture in Iowa, U.S.A.
(Kluwer Academic Publishers, 2004)
The contributions of current agricultural practices to environmental degradation and the social problems facing agricultual regions are well known. However, landscape-scale alternatives to current trends have not been fully ...
The Effects of Turbulence on Habitat Selection and Swimming Kinematics of Fishes
(2009)
This dissertation has investigated the role of turbulent eddies on habitat selection and swimming kinematics of fishes. First, the level of turbulent velocity fluctuations in habitat selected by brown trout (Salmo trutta) ...
Toward a better understanding of pro-social behavior: The role of evolution and directed attention.
(Cambridge University Press, 2002)
Rachlin’s thought-provoking analysis could be strengthened by greater openness to evolutionary interpretation and the use of the directed attention concept as a component of self-control. His contribution to the understanding ...
Effects of Management Intensity and Season on Arboreal Ant Diversity and Abundance in Coffee Agroecosystems
(Kluwer Academic Publishers; Springer, 2006-01)
Agricultural intensification decreases arthropod predator diversity, abundance and population stability, and may affect interactions between top predators and their arthropod prey – ultimately affecting ecosystem services. ...
Monitoring the Success of Metropolitan Wetland Restorations: Cultural Sustainability and Ecological Function
(The Society of Wetland Scientists, 2004)
In an interdisciplinary project to develop protocols for long-term cultural and ecological monitoring of wetland restorations in Minnesota, we compared restored and reference wetlands on several ecological and cultural ...