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Pygmy rabbits were used in feeding trials to rate preference of 15 populations of 2 subspecies of big sagebrush (A rtemisia tridentata ssp. vaseyana, A rtemisia tridentata ssp. tridentata). Monoterpenoid content of sagebrush was determined for each population in the feeding trials and related to food preference. The rabbits showed no significant preference for one A rtemisia subspecies over the other; instead, selection was made at the population level. There was no significant correlation between monoterpenoid content and dietary preference of pygmy rabbits Published in Journal of Range Management, volume 35, issue 6, on pages 724 - 726, in 1982.
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We tested the hypothesis that the monoterpenoid levels in the ingesta from various digestive organs of sage grouse are less than that expected from the big sagebrush leaves ingested. Results supported the hypothesis. Dramatic reductions occurred between the gizzard and duodenum. Monoterpenoid levels in the ceca were nil; thus adverse effects of monoterpenoids on ceca microbes would also be nil. Published in Journal of Chemical Ecology, volume 15, issue 3, on pages 961 - 969, in 1989.
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We conducted an experiment to determine the effects of a rust disease on big sagebrush (Artemisia tridentata Nutt.) seed production. We ranked 760 plants as to disease intensity in an established 'Hobble Creek' mountain big sagebrush (Artemisia tridentata ssp. vaseyana Rydb. Beetle) seed-increase garden. These rankings were divided into 4 classes: I. very light intensity; II. light intensity; III. medium intensity; and IV. heavy intensity. Three years after planting all plants in the test showed signs of infection. The heavier the infection the fewer seeds produced. Cost of the rust disease was estimated at about $3,862 ha-1. Published in Journal of Range Management, volume 48, issue 5, on pages 398 - 401, in 1995.
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