Publications

Land managers require landscape-scale information on where exotic plant species have successfully established, to better guide research, control, and restoration efforts. We evaluated the vulnerability of various habitats to invasion by exotic plant species in a 100,000 ha area in the southeast corner of Grand Staircase-Escalante National Monument, Utah. For the 97 0.1-ha plots in 11...

We present the results of a rapid assessment of butterfly diversity in the 754 ha Beaver Meadows study area in Rocky Mountain National Park, Larimer County, Colorado. We measured butterfly species richness and relative abundance as part of a landscape-scale investigation of diversity patterns involving several groups of organisms. A stratified random sampling design was used to include...

Lake Sarez, which is located in the Pamir Mountains in Tajikistan, was created in 1911. A massive landslide, triggered by an earthquake, blocked the Murgab River valley, creating a natural dam, which was called Usoi. In 1999, the International Decade for Natural Disaster Reduction Secretariat led a mission to assess the risk and impacts in the Pamir Mountains of Tajikistan including this...

No abstract available.

I am pleased to have had the opportunity to revise the first version of this set of course notes for the stream temperature models. In some ways, there have been many changes and in some ways the notes have stayed much the same. Generally, I was satisfied that the notes were both comprehensive and fairly easy to read. The exercises using SSTEMP have been upgraded to reflect advances in...

No abstract available.

Review of: The Los Angeles River: Its Life, Death, and Possible Rebirth. Blake Gumprecht. Johns Hopkins University Press, 1999. 369 p. ISBN: 0801860474.

Review of: The Western Range Revisited by D. L. Donahue. 1999. Norman, Oklahoma: University of Oklahoma Press. 388 pp. ISBN: 0-8061-3176-4 (Cloth).

No abstract available.

Here, you will find a series of questions and answers resulting from many years of technical assistance with SNTEMP and SSTEMP. These (in)frequently asked questions are presented here so that you may get a feel for the range of questions posed, learn from the questions and their 'answers,' and share in the discussions if you wish. I certainly didn't answer all the questions, nor do I...

Ecological Studies of the Pryor Mountain Wild Horse Range, 1992-1997 provides a synthesis of key findings of landscape-scale, interdisciplinary studies of the effects of wild horses and native ungulates on a rugged, mountain ecosystem. This is perhaps the most comprehensive study of a wild horse herd conducted. This was a complex study and one involving a truly interagency approach. Six