Archive | Arthropods

Effects on Ground-dwelling Arthropods on WICST 1995-1997

Arthropods were collected from pitfall traps (1995-96), soil cores (1995-96-97) in CS1 (continuous corn), CS3 (organic corn-soy-wheat/red clover), CS5 (organic corn- oats/alfalfa-alfalfa + manure), and CS6 (pasture) at the Lakeland and Arlignton sites.  In soil cornes from Arlington 1997, there were a greater abundance of insects in CS1 and CS5, although in Lakeland, there was [...] More »

Soil Invertebrates I: The Diversity of Collembola Associated with 1997 Soil Core Samples

Soil core sampling was initiated in 1995 to complement pitfall traps and decomposition bags used to survey the abundance and diversity of arthropods occurring in selected WICST plots. The soil cores allow us direct comparison of results with other investigators in the NRI Soil Biodiversity Team. Also, because soil core samples are independent [...] More »

Soil Invertebrates II: The Diversity of Collembola Associated with Decomposition Bags in 1995 and 1996

Decomposition (litter) bag sampling served as the main focus of our soil arthropod research. The overwhelming numbers of specimens generated from our annual sampling has forced us to streamline our analyses and center on a ubiquitous and ecologically important group of soil arthropods: Collembola or springtails. These small, six-legged arthropods are paramount to [...] More »

Soil Invertebrates Associated with 1996 Soil Core Sampling and Residue Decomposition

Soil core sampling began in 1995 as a complementary measure of soil arthropod abundance and biological diversity. The objectives of the soil core study are (1) to determine the influence of crop rotation, fertilizer and pesticide/herbicide inputs on soil arthropod populations, and (2) to have a sampling plan which is directly comparable to the [...] More »

Analysis of Soil Macroarthropods Associated with Pitfall Traps in the Wisconsin Integrated Cropping Systems Trial, 1995

The health of soil ecosystems is often quantified using biological diversity indices to gain insight into the “stability” of these systems. In general, a greater diversity of soil fauna inhabiting a system help establish healthy soils because the interactions of a richer complex of taxa (e.g. species) contributes to a more stable food web. [...] More »

Pitfall Trap Analysis of Soil Macroathropods associated with WICST - 1994

Our hypothesis in this study of arthropod diversity continues to be that  the level and frequency of soil disturbance (both physical and chemical) in the various cropping systems influence the numbers and kinds of arthropods inhabiting the plots.  Differences in arthropod populations could contribute to as well as result from changes in soil characteristics. In [...] More »

Pitfall Trap Analysis of Soil Macroarthropods Associated with the Wisconsin Integrated Cropping Systems Trial, 1993

The Wisconsin Integrated Cropping Systems Trial has become a forum for examining the ecological ramifications, both short and long term, of different approaches to farming and philosophies of land stewardship. Like several other research groups, we have focused on the soil biota as one measure of environmental impacts of agriculture. Our operational hypothesis for our [...] More »

A Survey of Soil Macroarthropods associated with Corn in Alternative Cropping Systems - 1992

WICST provides a unique laboratory for examining the ecological ramifications, both short and long term, of different approaches to farming and philosophies of land stewardship. Much of the ecological ‘action’ will take place in and on the soil, and will be related to the health of the soil as measured in chemical, physical, and [...] More »

A Survey of Soil Macroarthropods associated with Corn in Alternative Cropping Systems

WICST provides a unique laboratory for examining the ecological ramifications, both short and long term, of different approaches to farming and philosophies of land stewardship.  Much of the ecological ‘action’ will take place in and on the soil, and will be related to the health of the soil as measured in chemical, physical, and biological [...] More »