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Natural History of the Racer Coluber constrictor by HENRY S. - download pdf or read online

average background of the Racer Coluber constrictor through HENRY S. FITCH
Throughout a lot of the U.S. the racer is ample and is likely one of the snakes most sensible identified to guy. Its energetic diurnal behavior and its choice for a habitat in meadows, pastures, and hayfields instead of in distant desolate tract components, lead to widespread encounters with people. The racer is a predator on many sorts of small animals, either vertebrates and invertebrates; it takes as meals mainly animals which are agricultural pests but additionally destroys a few useful varieties. but, quite often, the attitudes of rural humans towards the racer are little prompted via those fiscal and ecologic issues, yet particularly, are ruled by way of an unreasonable worry, regardless of the racer's inoffensive disposition, and lack of ability to inflict any damage on humans.
Although an in depth literature exists concerning the racer, no thorough research of the species' traditional background has been made heretofore. evidently such examine is required. Few species of vertebrates having related financial bearing were equally ignored. In 1948, project a application of ecological examine at the lately created college of Kansas average historical past Reservation, I incorporated the racer one of several universal species studied to realize perception into the functioning of the neighborhood environment. Live-trapping of snakes at the sector used to be started in 1949, and those operations have been enormously intensified within the years 1957 via 1962, with efforts focused on the research of the racer within the 1960, 1961 and 1962 seasons. therefore my examine relies upon 14 consecutive years' documents at the Reservation, the northeasternmost part in Douglas County, Kansas, six and one-half miles north northeast of the college of Kansas campus at Lawrence. After the purchase in 1956 of the 160-acre Rockefeller Tract adjoining to the Reservation at the north in Jefferson County, box paintings was once prolonged to this new quarter, which, since it used to be more suitable habitat, within the ultimate years of the examine produced extra files than the Reservation. an enormous yet fairly minor section of the knowledge originated from Harvey County Park, thirteen miles west of Newton, Kansas, the place traces of live-traps have been maintained in 1959, 1960, 1961, 1962. Smaller collections of information have been received from the Lalouette Ranch within the Flint Hills, 3 miles northeast of Florence, Marion County, Kansas, and from Cedar Bluff Reservoir, 23 miles west and 7 miles south of Hays in Trego County, western Kansas, the place live-trapping used to be carried on in 1959 and 1960. extra facts have been bought on a number of box journeys to varied accumulating localities in northeastern Kansas. My first-hand wisdom of the species can also be dependent, partly, on a long time of box event with the some distance western subspecies C. c. mormon in western Oregon and California, and on comparable adventure in 1947 and 1948 with the southern subspecies, C. c. anthicus in important Louisiana.
Methods and Materials
Color pattern
Bodily proportions
Geographic Variation
Temperature Relationships
Home diversity and Movements
Food Habits
Methods of acquiring prey
Composition of food
Kinds of prey
Sexual behavior
Cycle of the male
Mortality components and diversifications for Survival
Defense and escape
Natural enemies
Literature Cited
Transcriber's Note

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Natural History of the Racer Coluber constrictor by HENRY S. FITCH : (full image Illustrated)

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