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Book A Serologic Survey for Four Zoonotic Diseases in Coyotes  Canis Latrans  in Selected Areas of Texas

Download or read book A Serologic Survey for Four Zoonotic Diseases in Coyotes Canis Latrans in Selected Areas of Texas written by Donald Stith Davis and published by . This book was released on 1979 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prevalence of Brucella abortus, Trypansoma cruzi, Rickettsia rickettsii, and rabies virus serum antibodies in wild-trapped coyotes (Canis latrans) from various areas of southeastern and southern Texas were determined. The buffered Brucella antigen (card), rivanol precipitation, standard agglutination tube, and cold complement fixation tube tests were utilized to detect B. abortus serum antibodies. Of 117 coyotes collected from 12 counties 23.9% (28) from 8 counties had some reactivity to these tests. Fifteen percent (17) had significant levels (positive by two or more tests) of serum antibodies to B. abortus. No appreciable change in antibody titer was observed during 100+ days in two serologically positive coyotes. Brucella abortus was isolated from various tissues from 18.6% (8/43) of the coyotes. Vertical transmission from a naturally infected female coyote to three pups was detected. An attempt to experimentally infect 4 serologically negative coyotes by conjunctival inoculation with B. abotus biotype 2 was unsuccessful. The rapid fluorescent focus inhibition test (RFFIT) which was utilized to detect rabies virus antibodies in 70 sera from coyotes collected from 6 counties determined that 10% (7) were positive. The positive sera were from coyotes collected in three of the counties. The latex agglutination and direct agglutination tests were used to determine the prevalence of T. cruzi serum antibodies in coyotes collected from 6 counties. Four percent (3/72) were serologically positive as indicated by the latex agglutination tests. Eleven percent (8/72) were serologically positive at a serum dilution>̲1:128 as deterimined by the direct agglutination method. The seropositive coyotes were collected from three of the counties. The prevalence of R. rickettsii serum antibodies in coyotes collected from 9 counties was 5.4% (4/74) by the complement fixation micotiter technique. The serologically positive coyotes were collected from three counties.

Book Seasonal Food Habits of Coyotes  Canis Latrans  in the Central Texas Hill Country

Download or read book Seasonal Food Habits of Coyotes Canis Latrans in the Central Texas Hill Country written by Matthew Andrés Fischer and published by . This book was released on 2015 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Canis latrans (coyotes) are a ubiquitous predatory species, and have long received attention from livestock managers and wildlife protection advocates due to their predation on domestic animals, and the increasing occurrence of human-coyote conflicts. Food habit studies aid in the understanding of a predator’s role in their habitat. Through scat analysis, food habits of C. latrans were studied at the Kerr Wildlife Management Area (KWMA) in Hunt, Texas to examine seasonal differences in prey item consumption for individuals inhabiting the central Texas Hill Country region. Scat samples were collected along a 22.05-km route composed of dirt and paved roads every three weeks for one calendar year. Contents of the scat were classified as being from one of nine prey categories (arthropod, bird, boar, carnivora, herpetofauna, lagomorph, ungulate, unknown, or vegetation), and then quantified by counting the prey items. In addition, mass was measured (by prey category) and point-frame analysis for each scat sample was completed to determine relative percent cover. Spatial autocorrelation analysis was conducted, including the variables road type, habitat type, and optimized hotspot analyses. There were significant seasonal differences in percent count, mass and point-frame for carnivora, herpetofauna, lagomorph and vegetation. There were significantly more samples collected on paved roads compared to gravel roads, more collected in ashe juniper/live oak shrubland habitat than other habitats, and more from the southwest corner of the property, compared to other locations. Using this baseline compilation of preferred prey items of C. latrans in the Hill Country, more effective and ecologically-friendly management practices can be developed.

Book Predator Damage in the West

Download or read book Predator Damage in the West written by U.S. Fish and Wildlife Service and published by . This book was released on 1978 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Impacts of Coyotes  Canis Latrans  on White tailed Deer  Odocoileus Virginianus  Behavior and Mortality in the Chicago Region

Download or read book Impacts of Coyotes Canis Latrans on White tailed Deer Odocoileus Virginianus Behavior and Mortality in the Chicago Region written by Gretchen C. Anchor and published by . This book was released on 2019 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: White-tailed deer (Odocoileus virginianus) and coyotes (Canis latrans) have spread into metropolitan areas in recent decades. How these species interact with the landscape, other species, and each other is of interest to managers of these human-dominated areas. In the Chicago region, little is known about the relationship of white-tailed deer and coyotes. Our study aimed to elucidate the predator-prey relationship as well as how white-tailed deer respond behaviorally to coyotes as a result of this relationship. To answer questions on the predator-prey relationship between these two species, 81 white-tailed deer fawns were collared and monitored to determine causes of mortality. The analysis of 172 coyote scats also provided insight into this relationship by determining dominant food sources. Predation by coyotes was the primary cause of mortality (77.8%) of white-tailed deer fawns at our study site. Furthermore, white-tailed deer remains were found in most coyote scats (53.5%) but the presence of these remains were highest in scats collected in the summer (83.9% in 2017; 61.3% in 2018). The results of the fawn mortality analysis and scat analysis suggest that there are high incidents of coyote predation on white-tailed deer fawns but provide little evidence of predation on adults. With this specific predator-prey relationship, there is potential for behavioral asymmetries between age classes and sexes of white-tailed deer. To determine how this relationship influences white-tailed deer behavior, we chose to study antipredator behaviors because these behaviors are expressed in relation to predation risk. Following the “ecology of fear” framework, we expected to see increases in antipredator behavior by fawns and does with fawns in response to coyotes coyotes due to the possibility of habituation as a result of exposure to high coyote densities. We chose to investigate the antipredator behaviors of vigilance and avoidance in response to coyotes. Through the use of camera traps, we captured white-tailed deer foraging behavior in response to an indicator of coyote presence, specifically coyote urine. Through this test, we found that white-tailed deer of each age class and sex do not increase the amount of time spent vigilant while foraging when an indicator of coyote presence was present. To look for signs of avoidance of coyotes, white-tailed deer and coyotes were fitted with radio collars and monitored concurrently. Home range overlap was found for all deer-coyote dyads studied indicating that white-tailed deer are not selecting home ranges that allow the complete avoidance of coyotes. After analysis using the half-weight association index, however, results suggested avoidance behavior occurred for all deer-coyote dyads. These results show that the white-tailed deer monitored in our study avoid being within 200 m of coyotes. The results of both the vigilance survey and avoidance testing provide evidence of habituation, regardless of age class and sex, to an indicator of coyote presence and the lack of avoidance at the landscape level. These results, however, indicate that white-tailed deer at this site show finer-scale avoidance by avoiding coming into close proximity with coyotes. Our study provides valuable information on the coyote-deer predator-prey relationship and the behavioral responses of deer to this relationship in the Chicago region.

Book The Voice of the Coyote

    Book Details:
  • Author : James Frank Dobie
  • Publisher : U of Nebraska Press
  • Release : 1961-01-01
  • ISBN : 9780803250505
  • Pages : 410 pages

Download or read book The Voice of the Coyote written by James Frank Dobie and published by U of Nebraska Press. This book was released on 1961-01-01 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: In The Voice of the Coyote, J. Frank Dobie melds natural history with tales and lore in articulating the complex and often contentious relationship between coyotes and humans. Based on his own life experiences in Texas and twenty-five years of research, Dobie forges a sympathetic and nuanced picture of the coyote prefiguring later environmental and conservation movements. He recognizes the impact of human action on the coyote while also examining the prominent role of the coyote in the myths and legends of the West.

Book Ecology of the Coyote  Canis Latrans  at Wind Cave National Park

Download or read book Ecology of the Coyote Canis Latrans at Wind Cave National Park written by Jamie M. Chronert and published by . This book was released on 2007 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Myths   Truths About Coyotes

    Book Details:
  • Author : Carol Cartaino
  • Publisher : Menasha Ridge Press
  • Release : 2010-10-01
  • ISBN : 0897328728
  • Pages : 202 pages

Download or read book Myths Truths About Coyotes written by Carol Cartaino and published by Menasha Ridge Press. This book was released on 2010-10-01 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coyotes hold a peculiar interest as both an enduring symbol of the wild and a powerful predator we are always anxious to avoid. This book examines the spread of coyotes across the country over the past century, and the storm of concern and controversy that has followed. Individual chapters cover the surprisingly complex question of how to identify a coyote, the real and imagined dangers they pose, their personality and lifestyle, and nondeadly ways of discouraging them.

Book An Analysis and Evaluation of Methods Used to Determine Coyote  Canis Latrans  Movements in Relation to Resource Use

Download or read book An Analysis and Evaluation of Methods Used to Determine Coyote Canis Latrans Movements in Relation to Resource Use written by Hugh Gerard Broders and published by . This book was released on 1995 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Assessment of Habitat Use by Eastern Coyote  Canis Latrans  Along an Urban parkland Gradient

Download or read book Assessment of Habitat Use by Eastern Coyote Canis Latrans Along an Urban parkland Gradient written by Beth A. Judy and published by . This book was released on 2010 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study used coyote howl surveys combined with GIS to locate local coyote (Canis latrans) populations, determine the habitats where coyotes occur and estimate coyote group sizes in Bedford, North Chagrin and West Creek Reservations within the Cleveland Metroparks, Ohio. The CMP were established in 1917 and are the oldest park districts in the state of Ohio. There are 8,500 hectares (21,000 acres) of land in 16 reservations and in 2008 approximately 43,000,000 people visited the Cleveland Metroparks. Bedford, North Chagrin and West Creek Reservations have a mixture of park, forest, woodlots, residential neighborhoods, industrial areas, commercial property, open water, streams and wetlands. Coyotes have become the "top terrestrial predator" in northeastern North America and these animals are choosing to live in urban areas where humans are present and few natural habitats are available. Very little is known about the ecology and behavior of these elusive Canids around residential neighborhoods. I examined where coyotes actually lived along park boundaries. I performed howl surveys in Bedford, North Chagrin, and West Creek Reservations. Data were collected to determine coyote location, estimation of coyote group sizes and what types of habitats coyotes responded from. Overall, coyotes were heard 16.9% of the time when howl surveys were performed. Bedford Reservation had a minimum of 13 coyotes during winter months and 11 coyotes during the summer. It is believed that three coyote groups (Bedford, Cuyahoga Valley National Park and Walton Hills) were present around Bedford Reservation. North Chagrin Reservation had at least five coyotes during the winter and four coyotes in the summer months. West Creek Reservation had three coyotes respond to surveys in the winter and five coyotes replied during summer surveys. North Chagrin and West Creek Reservation each had one coyote group. Bedford Reservation coyote groups had similar responses during all three seasons (dispersal, breeding and pup-rearing). North Chagrin coyotes responded the most during the dispersal and pup-rearing seasons. West Creek Reservation had peak coyote responses during the breeding and pup-rearing seasons. For all three reservations, coyotes responded from natural areas more than from urban areas (Bedford 65%, North Chagrin 79%, and West Creek 83%). Statistics showed that Bedford coyotes responded more than West Creek coyotes. More coyotes responded during the dispersal season than during the pup-rearing season. Coyote response rates increased the closer howl surveys were performed to sunset and/or later at night (closer to midnight). Coyotes also responded more to howl surveys when temperatures were low and the moon was visible. Overall, howl surveys allowed for inexpensive monitoring of coyotes over large areas in urban-park environments. Coupled with GIS, these surveys identified where coyotes lived and the habitats they used, and therefore these methods provide the tools to inform the public better about how they may coexist with coyotes.

Book The Eastern Coyote  canis Latrans  in Washington  D C

Download or read book The Eastern Coyote canis Latrans in Washington D C written by Lindsay Powers and published by . This book was released on 2021 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a later stage of their range expansion across North America over the last 100 years or so, coyotes (Canis latrans) arrived in the Washington, D.C. area relatively recently, with reported sightings in and around Rock Creek Park since 2004. While coyotes have been studied in many other metropolitan areas, there has been little research on the urban population within the District. This study focused on how coyotes might be moving in and out of Rock Creek Park using camera traps placed in tributary areas that could serve as green travel corridors, and near the park's northern boundary where a green corridor extends into Maryland. Knowledge of coyotes' travel behaviors could help indicate areas outside the park that they might frequent and include in their home ranges. This study also focused on the diet of coyotes within Rock Creek Park through scat analysis to learn more about their potential impact on the local ecosystem. Lastly, this study involved the conduction of howl surveys and investigation of sound analysis of coyote howls as a potential tool that researchers could use to track individuals within the district. With coyotes as an established presence in the area, a greater understanding of their behaviors within this specific urban context can help inform possible management strategies and education efforts.

Book Coyotes

    Book Details:
  • Author : Marc Bekoff
  • Publisher :
  • Release : 1978
  • ISBN :
  • Pages : 416 pages

Download or read book Coyotes written by Marc Bekoff and published by . This book was released on 1978 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1978, this text pulls together much disparate research in coyote evolution, taxonomy, reproduction, communication, behavioral development, population dynamics, and ecological studies in the Southwest, Minnesota, Iowa, New England, and Wyoming. (Animals/Pets)

Book HowExpert Guide to Coyotes

Download or read book HowExpert Guide to Coyotes written by HowExpert and published by HowExpert. This book was released on 2020-05-17 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coyotes are some of the most fascinating creatures native to the North American continent. Most people haven’t had much opportunity to learn about what makes this species so unique, and this has fueled strong negative feelings that have persisted for thousands of years. Now that public opinion is shifting further in favor of enforcing more humane animal welfare protections, the time is ripe for reconciling our relationship with the ‘yotes, and encouraging better relationships between humans and the infamous Song Dog. In this book, we go through the basics of coyotes and get to know them as an animal just like any other species native to North America. From learning more about their infamous howl, to how they overcome the challenges of living in an urban environment, you’ll get to know the coyote on a deeper level and break through the narrative of fear you’ve been exposed to for so long. The intention of this book is not to force you to love coyotes as the author does (but it’s great if that’s the result!), but to help you grow past the myths that have been passed as fact since the 1800s. Learn to live with the coyote peacefully, and see it not as a “wiley” villain, but as just another animal that is trying to survive like you and me! About the Expert Jazmin “Sunny” Murphy is a Master’s student studying Environmental Policy and Management, with a concentration in Fish and Wildlife Management. She has a Bachelor of Science degree in Zoology from the University of California, Santa Barbara, and aims to make STEM research and education freely available to the public through her platform, Black Flower Science Co. Jazmin’s ultimate goal is to repair relationships between scientists and laypeople, and all of her writing is a part of this big picture. Wildlife has always played a central role in her life, and her hope is that everyone would come to love the organisms of the natural world in the way that she always has. HowExpert publishes quick 'how to' guides on all topics from A to Z by everyday experts.