Open Access. Powered by Scholars. Published by Universities.®

Other Economics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 7 of 7

Full-Text Articles in Other Economics

Improving Spatio-Temporal Benefit Transfers For Pest Control By Generalist Predators In Cotton In The Southwestern Us, Ruscena Wiederholt, Kenneth J. Bagstad, Gary F. Mccracken, Jay E. Diffendorfer, John B. Loomis, Darius J. Semmens, Amy L. Russell, Chris Sansone, Kelsie Lasharr, Paul Cryan, Claudia Reynoso, Rodrigo A. Medellin, Laura Lopez-Hoffman Oct 2016

Improving Spatio-Temporal Benefit Transfers For Pest Control By Generalist Predators In Cotton In The Southwestern Us, Ruscena Wiederholt, Kenneth J. Bagstad, Gary F. Mccracken, Jay E. Diffendorfer, John B. Loomis, Darius J. Semmens, Amy L. Russell, Chris Sansone, Kelsie Lasharr, Paul Cryan, Claudia Reynoso, Rodrigo A. Medellin, Laura Lopez-Hoffman

Amy L. Russell

Given rapid changes in agricultural practice, it is critical to understand how alterations in ecological, technological, and economic conditions over time and space impact ecosystem services in agroecosystems. Here, we present a benefit transfer approach to quantify cotton pest-control services provided by a generalist predator, the Mexican free-tailed bat (Tadarida brasiliensis mexicana), in the southwestern United States. We show that pest-control estimates derived using (1) a compound spatial-temporal model - which incorporates spatial and temporal variability in crop pest-control service values - are likely to exhibit less error than those derived using (2) a simple-spatial model (i.e., a model that …


Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers Jul 2016

Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers

William Edwards

A combine harvester econometric simulation model was developed with the goal of matching the combine forward speed to the maximum harvested net income per acre. The model considers the machinery management costs of owning a combine and platform header for harvesting wheat. A statistical Design of Experiment (DOE) was used to evaluate the model using tri-level variables; the medium values constituted the model base case. Of the 27 input variables, the optimum speed was significantly influenced by the crop area, G/MOG ratio, grain unit price, field yield, field efficiency, grain moisture content, probability of a working day in the post-optimum …


Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers Jul 2016

Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers

William Edwards

A combine harvester econometric simulation model was developed with the goal of matching the combine forward speed to the maximum harvested net income per acre. The model considers the machinery management costs of owning a combine and platform header for harvesting wheat. A statistical Design of Experiment (DOE) was used to evaluate the model using tri-level variables; the medium values constituted the model base case. Of the 27 input variables, the optimum speed was significantly influenced by the crop area, G/MOG ratio, grain unit price, field yield, field efficiency, grain moisture content, probability of a working day in the post-optimum …


Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers Jul 2016

Combine Harvester Econometric Model With Forward Speed Optimization, Nathan E. Isaac, Graeme R. Quick, Stuart J. Birrell, William M. Edwards, Bruce A. Coers

William Edwards

A combine harvester econometric simulation model was developed with the goal of matching the combine forward speed to the maximum harvested net income per acre. The model considers the machinery management costs of owning a combine and platform header for harvesting wheat. A statistical Design of Experiment (DOE) was used to evaluate the model using tri-level variables; the medium values constituted the model base case. Of the 27 input variables, the optimum speed was significantly influenced by the crop area, G/MOG ratio, grain unit price, field yield, field efficiency, grain moisture content, probability of a working day in the post-optimum …


Porous Capsule Irrigation, David A. Bainbridge Dec 2011

Porous Capsule Irrigation, David A. Bainbridge

David A Bainbridge

Porous capsule irrigation is a modern adaptation of buried clay pot irrigation. Research in Brazil and Mexico has demonstrated its value in improving water use efficiency. Porous capsules are more easily integrated in an irrigation network than buried clay pots.


Mother Earth "Speaks": Change Yourself, Change The World, Use The Archetypal Energy "Harmony" As A Guide, Carroy U. Ferguson Jun 2010

Mother Earth "Speaks": Change Yourself, Change The World, Use The Archetypal Energy "Harmony" As A Guide, Carroy U. Ferguson

Carroy U "Cuf" Ferguson, Ph.D.

In relation to the Cosmos, we all, as human beings, live on this tiny planet we call Earth, a planet that supports and sustains life, as we know it. There are many different kinds of people, plants, and animals functioning in harmony with soil, air, and water--all linked to one another in a complex web of life to form one Earth community. Unfortunately, we often take this miracle and ecosystem of life for granted. When, however, we take the ecosystem of life too much for granted, Mother Earth "speaks," reflecting imbalances and dis-harmonies. When Mother Earth "speaks," her message is …


Bearing The Costs Of Human-Wildlife Conflict: The Challenges Of Compensation Schemes, Philip J. Nyhus, Steve A. Osofsky, Paul Ferraro, H Fischer, Francine Madden Dec 2004

Bearing The Costs Of Human-Wildlife Conflict: The Challenges Of Compensation Schemes, Philip J. Nyhus, Steve A. Osofsky, Paul Ferraro, H Fischer, Francine Madden

Philip J. Nyhus

No abstract provided.