Ten years after the large-scale tsetse control campaigns in the important cattle rearing areas of the Faro and Deo Division of the Adamaoua Plateau in Cameroon, the seasonal distribution and abundance of tsetse flies (Glossina spp.) were determined. During a period of 12 consecutive months (January-December 2005), the tsetse population was monitored along four trap transects consisting of a tot...

This study describes a step-by-step process used to design an effective benthic video survey component of the Commonwealth of the Northern Mariana Islands long-term monitoring program. Documenting abundance of major benthic groups at relatively large spatial scales, at the appropriate localities, can empower monitoring programs with the capacity to detect changes over time and assess whether ma...

Soil carbon (C) losses and soil translocation from tillage operations have been identified as causes of soil degradation and soil erosion. The objective of this work was to quantify the variability in tillage-induced carbon dioxide (CO2) loss by moldboard (MP) and chisel (CP) plowing across an eroded landscape and relate the C loss to soil properties. The study site was a 4 ha wheat (Triticum a...

The relationships between the structural variations of a fenisol and the plant parasitic nematode communities of sugarcane were studied along three transects. These transects, about 20 m long, started in horizon A and ended in a levelled area where horizon C began. Results were analysed with the Co-inertia analysis method, which allowed us to study simultaneously the soil and nematode data. Pro...

We conducted this study to inves tigate the magnitude of roadway mortality of Lepidoptera in central Illinois. To quantify the number and kinds of Lepidoptera killed along roadways, dead adult Lepidoptera were collected, identified, and counted from along 13 roadside transects in the vicinity of ChampaignIU rbana, Illinois , with collections occurring weekly on each transect for six weeks. Duri...

Sediments from the Southern Caspian Sea, located in Iranian coast were examined on the basis of P-fractionation (five forms of phosphorus) by a sequential extraction scheme. Ninety-six surface sediment samples (for each season with triplicate) were collected from eight sampling transects in 10 and 100 m depths during summer and winter in 2010-2011. The result indicated that the most abundant fo...

INTRODUCTION A fence was erected across the St Col Ridge of Campbell Island (Fig. 1) early in 1970, and feral sheep (Ovis aries) (Wilson and Orwin, 1964) were exterminated north of the line (Bell and Taylor, 1970). The aims of the fencing project were – 1. to assess the effects of sheep grazing on the native biota; 2. to remove the immediate threat to plant species and communities; 3. to help d...

Aerodynamic roughness length 0 ) and displacement height 0 ) are important surface parameters for estimating surface fluxes in numerical models. These parameters are generally determined from wind flow characteristics using logarithmic wind profiles measured at a meteorological tower or by balloon release. It would be an advantage to use measurements of land surface characteristics instead of w...