Grower Evaluation of California Ground Squirrel (Spermophilus beecheyi) Control using Anticoagulant Baits
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چکیده
منابع مشابه
Control of Ground Squirrels in California Using Anticoagulant Treated Baits
Anticoagulant treated grain baits have been used to control vertebrate pest depredations in California for over 30 years. The use of anticoagulant treated baits has increased seven (7) times in the past seven (7) years; the majority for the use of ground squirrel, Spermophilus spp., control. Since 1968-69, an average of 1,747,828 net over 5,700,919 gross acres per year has been treated for grou...
متن کاملThe distributions of photoreceptors and ganglion cells in the California ground squirrel, Spermophilus beecheyi.
The topographical distributions of photoreceptors and ganglion cells of the California ground squirrel (Spermophilus beecheyi) were quantified in a light microscopic study. The central retina contains broad, horizontal streaks of high photoreceptor density (40-44,000/mm2) and high ganglion cell density (20-24,000/mm2). The isodensity contours of both cell types are elliptical and oriented along...
متن کاملRetinal neurons of the California ground squirrel, Spermophilus beecheyi: a Golgi study.
Although the optic nerve fibers of the cone-dominant ground squirrel retina have been well studied physiologically, the morphological details of the retinal neurons have not. To that end, retinal neurons of the California ground squirrel have been studied in Golgi-impregnated wholemounts. Two types of horizontal cell have been identified: H1 has an axon and axon terminal, whereas H2 is axonless...
متن کاملDIFFERENTIAL TOXICITY AND TASTE AVERSION TO STRYCHNINE OF THREE SUBSPECIES OF THE CALIFORNIA GROUND SQUIRREL (Spermophilus beecheyi)
Three subspecies of the California ground squirrel (Spermophilus beecheyi) were studied. In the first test of Experiment 1, Beechey (S. b. beecheyi), Douglas (S. b. douglasii), and, for comparative purposes, Sierra (S. b. sierrae) ground squirrels were each offered a drinking tube containing one of three H20 solutions of strychnine sulfate (0.01, 0.05, or 0.5%) after being deprived of water for...
متن کاملThe effects of wind turbines on antipredator behavior in California ground squirrels (Spermophilus beecheyi)
Electricity-generating wind turbines are an attractive energy source because they are renewable and produce no emissions. However, they have at least two potentially damaging ecological effects. Their rotating blades are hazardous to raptors which occasionally fly into them. And wind turbines are very noisy when active, a feature that may interfere with the lives of animals beneath them. We stu...
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ژورنال
عنوان ژورنال: Proceedings of the Vertebrate Pest Conference
سال: 2006
ISSN: 2641-273X
DOI: 10.5070/v422110120