Cattle Distribution on Mountain Rangeland in Northeastern Oregon

Cattle Grazing Effects on Macroinvertebrates in an Oregon Mountain Stream

Cattle grazing effects on aquatic macroinvertebrates were assessed in a 4-year experiment of a mountain stream in northeastern Oregon. From 1996 through 1999, 10 cow–calf pairs were introduced into 6 experimental units along the stream for 42 days between July and September, and effects on aquatic macroinvertebrates were compared with 3 units in which no grazing occurred. Streambank and geomorp...

“ The Role of Observer Variation in Determining Rosgen Stream Types in Northeastern Oregon Mountain Streams

The concept of testing the stream classification procedure with field data collected by a group of independent field crews is encouraged by this author and can be beneficial. However, regardless of which classification system is being tested, the protocols and procedures specific to the classification system must be followed. This discussion demonstrates that the Rosgen classification system wa...

Cattle use of perennial streams and associated riparian areas on a northeastern Oregon landscape

Stream and riparian health is a major concern for state and federal land management agencies that are charged with oversight of extensive land holdings in the mountain west of the United States. Several federal agencies in the 1980s and 1990s determined that livestock grazing had adversely impacted a majority of federal lands in this region. In response, management was changed on grazing allotm...

Cattle in Eastern Oregon

Effects of Wildlife on Cattle Diets in Laikipia Rangeland, Kenya

The impacts of wild herbivores on cattle diet selection were investigated in an East African rangeland during August 2001 and February 2002. The study compared cattle diets in plots exclusively accessible to cattle (C) and those accessible to megaherbivores (elephants and giraffes), non-megaherbivore wild herbivores . 15 kg (zebras, hartebeests, Grant’s gazelles, oryx, elands, and buffaloes) an...