Digital Commons Network^™

Information Content Of Coyote Barks Howls, Brian R. Mitchell, Maja M. Makagon, Michael M. Jaeger, Reginald H. Barrett

USDA Wildlife Services: Staff Publications

The information content of coyote (Canis latrans) vocalizations is poorly understood, but has important implications for understanding coyote behavior. Coyotes probably use information present in barks or howls to recognize individuals, but the presence of individually-specific information has not bean demonstrated. We found that coyote barks and howls contained individually specific characteristics: discriminant analysis correctly classified barks of five coyotes 69% of the time and howls of six coyotes 83% of the time. We also investigated the stability of vocalization characteristics at multiple distances from the source. Recordings were played back and re-recorded at 10 m, 600m, and …

Crop Updates 2006 - Farming Systems, Wayne Pluske, Bill Bowden, Craig Scanan, Stephen Davies, Chris Gazey, Peter Tozer, Derk Bakker, Louise Barton, David Gatter, Renee Buck, Daniel Murphy, Christoph Hinz, Bill Porter, Meredith Fairbanks, Nicolyn Short, Ian Foster, James Fisher, Doug Abrecht, Mario D'Antuono, Tracey M. Gianatti, Paul Carmody, Frank D'Amden, Rick Llewellyn, Michael Burton, Caroline Peek, Nadine Eva, Chris Carter, Megan Abrahams, Andrew Blake, Paul Blackwell, Sylvian Pottier, Michael Robertson, Greg Lyle, Lisa Brennan, Tony J. Vyn, Simon Teakle, Peter Norris, Jeff Russell, James Fisher, Roy Murray-Prior, Deb Pritchard, Mike Collins, Greg Hamilton, Rob Hetherington, Andrew Van Burgel, Cliff Spann

Crop Updates

This session covers nineteen papers from different authors:

SOIL AND NUTRIENT MANAGEMENT

1. Inve$tigating fertili$er inve$tment, Wayne Pluske, Nutrient Management Systems

2. KASM, the potassium in Agricultural System Model,Bill Bowden and Craig Scanlan, DAWA Northam and UWA, School of Earth and Geographical Sciences

3. Long term productivity and economic benefits of subsurface acidity management from surface and subsurface liming, Stephen Davies, Chris Gazey and Peter Tozer, Department of Agriculture

4. Furrow and ridges to prevent waterlogging, Dr Derk Bakker, Department of Agriculture

5. Nitrous oxide emissions from a cropped soil in Western Australia, Louise Barton^{1 …}