Download or read book The Spatial and Temporal Foraging Behavior of the California Ground Squirrel Spermophilus Beecheyi Under Conditions of Supplemented Resources written by Edward A. Dochtermann and published by . This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Food Manipulation on the Social Organization of California Ground Squirrels Spermophilus Beecheyi written by Vered Mirmovitch and published by . This book was released on 1998 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reproductive Behavior and Spatial Organization of the California Ground Squirrel Spermophilus Beecheyi written by Diane E. Boellstorff and published by . This book was released on 1991 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural History of the Ground Squirrels of California written by Joseph Grinnell and published by . This book was released on 1918 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Control of the California Ground Squirrel written by Joseph Scattergood Dixon and published by . This book was released on 1917 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mother young Recognition and Other Behavior in the California Ground Squirrel Spermophilus Beecheyi written by Stacy Jean Shriver and published by . This book was released on 1980 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Wind Turbines on California Ground Squirrel Spermophilus Beecheyi Behavior written by Lawrence Aaron Rabin and published by . This book was released on 2005 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book California Ground Squirrels written by California. State Commission of Horticulture. Rodent Control Division and published by . This book was released on 1918 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecological Role of the California Ground Squirrel Spermophilus Beecheyi written by Colleen Marie Lenihan and published by . This book was released on 2007 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings Vertebrate Pest Conference written by and published by . This book was released on 2006 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seasonal Activity Demography Dispersal and a Population Simulation Model of the California Ground Squirrel Spermophilus Beecheyi written by Dennis Clifton Stroud and published by . This book was released on 1983 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Requirements and Diet of the California Ground Squirrel Spermophilus Beecheyi written by Frank Schitoskey and published by . This book was released on 1973 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Social Behavior and Response to Predators in California Ground Squirrels Spermophilus Beecheyi written by Joan Marie Parker and published by . This book was released on 1985 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antipredator Behavior of California Ground Squirrels Otospermophilus Beecheyi written by Margaret A Mantor and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Antipredator behavioral can give insight into the evolution of animal communication and the processes that shape it. California ground squirrels are a model species for studying how natural behavioral systems have been shaped by known sources of selection acting through millennia of evolution. The natural history and biology of California ground squirrels have been well studied making them an ideal species for studying the development and maintenance of antipredator behavior. This dissertation focuses on the differences in California ground squirrel antipredator alarm call behavior toward humans and domesticated dogs: two categories of mammalian predator that differ in the level of threat they pose. This study found that squirrel antipredator behavior varies by age class, predator type, and location. Chapter two focuses on differences in antipredator behavior between adults and juveniles. Results indicate that adult and juvenile antipredator behavioral patterns differ in the proportion of time spent in antipredator behaviors and that many of the behavioral differences may aid juveniles in appearing larger and more adult-like which could deter predators, a hypothesis first described in this dissertation and termed size bluffing. Adult behavior patterns varied with the threat level posed by the stimulus but juvenile behavior patterns did not. Results also indicate behavioral differences varied on a geographic basis between our two study sites, likely influenced by experience with different predator environments. Chapter 3 focuses specifically on alarm calls — vocalizations produced when squirrels are threatened or startled by a predator or some other disturbance. This chapter examines the degree of situational specificity of alarm calls by analyzing the temporal and acoustic structures of the vocalizations. Results indicate that alarm calls have a degree of situational specificity and that the first call of a call bout was different than subsequent calls, which may indicate that the first call has a different function than subsequent calls. Squirrels may vary alarm call parameters to communicate about the type of predator or the threat level posed by the predator, or about the internal state of the signaler. Chapter 1 focuses on trapping and handling methods to reduce stress and injuries to the animal. During this dissertation study trap modifications and a refined handling method using a handling bag rather than chemical immobilants were used. This paper reports injury rates caused by trapping and handling from this dissertation study and other squirrel studies using similar trapping and handling modifications. This dataset on multiple species provides values for comparison with other studies and can be used to compare and choose appropriate methods, and thereby improve the welfare of animals captured for research.

Download or read book Aspects of the Social Structure of the California Ground Squirrel Spermophilus Beecheyi in Western Oregon written by Carol E. Bickford and published by . This book was released on 1979 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A population of Spermophilus beecheyi was studied to determine patterns of individual spacing, behavioral interactions among different sex and age classes, and the relationship between aspects of S. beecheyi social structure and sociality to those of other sciurids. Research was conducted on a population of squirrels living in an abandoned rock quarry on Finley National Wildlife Refuge near Corvallis, Oregon. Squirrels were trapped, marked with dye, and observed during March through October, 1977, and March, 1978. The location of each squirrel and the type and location of any encounters were recorded during 325 hours of observation. The types of encounters most often observed were approach/ withdrawal, greeting/investigation, play, displacement, aggression, and the male-initiated paw push. The two major activity peaks occurred in March, corresponding to courtship activity and male defense of breeding territories, and in July, corresponding to the activity of juveniles. The seasonal activity cycle of S. beecheyi had five phases: breeding, pre-emergence of young, litter, pre-hibernation, and hibernation. distinct time of dispersal was determined. The population consisted of approximately twice as many adult females as adult males. Both sexes had overlapping home ranges, but their centers of activity were usually separate from the activity centers of other members of the same sex. Home ranges were retained from year to year by the same squirrel. The most social sciurids are those which exhibit a high frequency of cohesive behaviors, such as greeting and mutual grooming. The S. beecheyi at Finley National Wildlife Refuge tended to be tolerant of other individuals, but did not maintain a high level of cohesive behavior within the population. The social structure of S. beecheyi was intermediate to the more social S. columbianus and the more solitary S. franklinii.

Download or read book The Development of the California Ground Squirrels Mammalian and Avian Antipredator Behavior written by Mark Thomas Hanson and published by . This book was released on 1995 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Control of the California Ground Squirrel Classic Reprint written by Joseph Dixon and published by Forgotten Books. This book was released on 2017-05-21 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Control of the California Ground Squirrel According to Dr. C Hart Merriam, 'of the United States Biological Survey, the national loss to agriculture through depredations of ground squirrels amounts to at least 10 million dollars annually. No other state suffers more, or as much, in. This regard, as California. The loss due to the ground squirrel ln California alone has been placed at as high a figure as that given above for the entire country, so that it is a conservative estimate to put the annual lo'ss due to ground squirrels in this state as not less than five million dollars. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.