Download or read book Habitat Use by Wintering Whooping Cranes on the Aransas National Wildlife Refuge written by Stephen E. Labuda and published by . This book was released on 1978* with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migration of Radio marked Whooping Cranes from the Aransas Wood Buffalo Population written by Marshall A. Howe and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study of the migration stopovers, breeding behavior, and survival rates of the endangered whooping cranes (Grus americana) between fall 1981-83 and spring 1983-84. Distribution pattern of radio-tracked birds observed to be greatly different from distributions derived from opportunistic sightings. observations carried out between Aransas National Wildlife Refuge, Texas, and central Saskatchewan.
Download or read book Wintering Whooping Crane Behavior and Habitat Quality at the Aransas National Wildlife Refuge on the Texas Gulf Coast written by Lindsey A. Tiegs and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aransas-Wood Buffalo population of Whooping Cranes (Grus americana) exclusively overwinters in coastal saltmarshes of Texas. This study examined how Whooping Crane behavior and habitat quality shift over the course of a winter season, and attempted to discover linkages between their behavior and habitat quality, with the ultimate goal of finding a non-invasive method to infer habitat quality through behavioral observations. Whooping Crane behavioral observations and habitat assessments were conducted at the Aransas National Wildlife Refuge (NWR) and at adjacent urban upland sites January-March of 2016 and 2017. Cranes visiting urban upland sites with game feeders spent significantly less time foraging, and more time resting and in comfort/maintenance activities than cranes observed in their natural saltmarsh territories. On average, birds observed in their saltmarsh territories sequentially spent more time foraging each month during both winters, which correlated to a decrease in the time spent resting each month in 2017. Adult cranes spent significantly more time on alert than juveniles both years. Intra-site variability significantly exceeded inter-site variability in marsh pond salinity, but not in Blue Crab (Callinectes sapidus) or Carolina Wolfberry (Lycium carolinianum) fruit density. Saltmarsh salinity and Blue Crab density dramatically changed throughout the two winters, which were both negatively correlated to mean sea level. Marsh water quality was variable across sites, with some mainland regions and islands possessing similar water quality traits. Whooping Crane time activity budgets were not similar across sites comparable in resource availability, nor did their behavior reflect shifts in pond salinity or Blue Crab density. Whooping Crane behavior also did not consistently correlate to time of day, observation distance, wind speed, air temperature, or mean sea level. To investigate which structural components make one saltmarsh territory more plentiful in Whooping Crane resources than another, future geospatial modeling of the microtopographic variations along the Aransas NWR could be paired with the food density and marsh pond salinity data from this study, to ultimately be applied in future land purchase, protection of existing lands, environmental easement, and restoration decisions. The electronic version of this dissertation is accessible from http://hdl.handle.net/20.500.11875/2324
Download or read book The Effects of Burning and Grazing on Habitat Use by Whooping Cranes and Sandhill Cranes on the Aransas National Wildlife Refuge Texas written by Howard Emery Hunt and published by . This book was released on 1987 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Whooping Cranes of Aransas National Wildlife Refuge written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1967 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Whooping Crane written by Klaus Nigge and published by Texas A&M University Press. This book was released on 2010-08-16 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 250 wild whooping cranes nest in northern Canada and winter in south Texas, flying 2,500 miles annually between these two distinct havens: the coastal marshes of the Gulf of Mexico and the boreal wilderness on the border of Alberta and the Northwest Territories. Through twists of good fortune, each of these terminal migratory places is protected from human encroachment—by a U.S. national wildlife refuge on the one hand and a Canadian national park on the other. This last remaining natural flock of the species, its numbers small but slowly increasing, has thus become known by the names of its sanctuaries: Aransas–Wood Buffalo. On the flock’s wintering grounds at Aransas National Wildlife Refuge in Texas, photographer Klaus Nigge has captured the daily activity of a single family over several weeks in two separate years, documenting their life in the salt marshes of the central Texas coast and, in one year, the happy arrival from the north of twin adolescents, itself an unusual event. Then, with the backing of National Geographic magazine, he received unprecedented permission from the Canadian government to photograph the cranes’ summer nesting sites in remote areas of Wood Buffalo National Park. To obtain these unique photographs, he sat in a cleverly constructed blind for six days and nights, watching as a chick hatched and the adults cared for their young. There he witnessed both the peace and the perils of the cranes’ summer haven. In three galleries, each containing portfolios of images of these magnificent birds in their natural habitat, Nigge captures the beauty and essential mystery that have led humans the world over to include cranes in their earliest myths and legends. Additionally, Nigge has written vignettes to accompany each of the portfolios. Krista Schlyer provides an introductory text that affords an overview of crane history. She chronicles the monumental efforts by humans to ensure the survival of the species and has added a profile of Nigge, outlining his extraordinary entry into the world of wild whooping cranes in order to acquire these breathtaking photographs.
Download or read book Endangered and Threatened Species of the Platte River written by National Research Council and published by National Academies Press. This book was released on 2005-02-24 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tension between wildlife protection under the Endangered Species Act and water management in the Platte River Basin has existed for more than 25 years. The Platte River provides important habitat for migratory and breeding birds, including three endangered or threatened species: the whooping crane, the northern Great Plains population of the piping plover, and the interior least tern. The leading factors attributed to the decline of the cranes are historical overhunting and widespread habitat destruction and, for the plovers and terns, human interference during nesting and the loss of riverine nesting sites in open sandy areas that have been replaced with woodlands, sand and gravel mines, housing, and roadways. Extensive damming has disrupted passage of the endangered pallid sturgeon and resulted in less suitable habitat conditions such as cooler stream flows, less turbid waters, and inconsistent flow regimes. Commercial harvesting, now illegal, also contributed to the decline of the sturgeon. Endangered and Threatened Species of the Platte River addresses the habitat requirements for these federally protected species. The book further examines the scientific aspects of the U.S. Fish and Wildlife Service's instream-flow recommendations and habitat suitability guidelines and assesses the science concerning the connections among the physical systems of the river as they relate to species' habitats.
Download or read book Characterization of Habitat Used by Whooping Cranes During Migration written by Michael J. Armbruster and published by . This book was released on 1990 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial and Temporal Winter Territory Use and Behavioral Responses of Whooping Cranes to Human Activities written by Kristin E. LaFever and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I investigated spatial and temporal winter behavior and behavioral responses of 5 territorial whooping crane families to human activities at Aransas National Wildlife Refuge during winters 2003-2004 and 2004-2005. Adult and juvenile cranes spent the majority of the day foraging (63% and 66%, respectively). Alert behavior comprised 15% of the cranes' time-activity budgets; preening or resting, and movement each constituted approximately 7% of the time-activity budget. Adults were more alert than juveniles in Jan-Feb. The proportion of time spent in other behaviors did not differ by age. Over-winter use of territories varied spatially and temporally. Flight occurrence was highest in Nov-Dec, coinciding with establishment of territorial boundaries upon arrival at the wintering grounds. Movement velocity (meters traveled/min) also tended to be highest in Nov-Dec, which may be due to territorial defense and foraging activities. Use of land, open water, and edge habitats (land and water interface) within territories appeared to fluctuate with primary food item availability. Disproportionate use of land habitat by several crane families coincided with peak production of wolfberry (Lycium carolinianum) fruit, which occurs in Nov-Dec. Edge habitat was used disproportionately to its availability throughout the winter, most likely because this habitat type provided refuge for blue crabs (Callinectes sapidus), an important food item for whooping cranes. Several families also used open water disproportionately to its availability. Behavioral responses of whooping cranes to human activities were limited. Responses to varying frequency and intensity of human stimuli were evaluated. Most stimuli did not elicit a response. Two crane families decreased the proportion of time spent foraging during periods of high-intensity stimuli; one family increased movement during such times. Foraging behavior of one family was significantly higher when stimuli frequency was high; alert behavior significantly declined as stimuli frequency increased. The mixed responses of territorial families to varying levels of human stimuli paired with the overall high level of reproductive success of the entire population led to my conclusion that current levels of human activities are not having a detrimental impact on the Aransas-Wood Buffalo whooping crane population.
Download or read book Predicting Future Range Expansion of Whooping Crane Grus Americana Winter Habitat Using Long term Census and Remotely Sensed Data written by Nicole Aileen Davis and published by . This book was released on 2019 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: The whooping crane (Grus americana) is one of the most threatened crane species in the world and has been identified as an endangered species since 1967. The last wild-population of the whooping crane, the Aransas-Wood Buffalo Population (AWBP), breeds in Wood Buffalo National Park and surrounding areas in the Northwest Territories of Canada and migrates 2,500 km through the Central Flyway to their wintering grounds within the Aransas National Wildlife Refuge and surrounding areas on the Texas Coast. The Endangered Species Act (ESA) recovery plan for this species outlines objectives to down-list the species from endangered to threatened status, including an objective for a self-sustaining wild population size of at least 1,000 individuals, including 250 breeding pairs.However, the feasibility of meeting this objective requires an assessment of space-use by wintering whooping cranes and of the amount of available habitat within the winter range to support the recovery goal population size.
Download or read book The Whooping Cranes of Aransas National Wildlife Refuge written by United States. Bureau of Sport Fisheries and Wildlife and published by . This book was released on 1967 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Whooping Crane written by Jerome J. Pratt and published by . This book was released on 1996 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Whooping Cranes Biology and Conservation written by and published by Academic Press. This book was released on 2018-09-04 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whooping Cranes: Biology and Conservation covers one of the most endangered birds in North America, and the subject of intense research and highly visible conservation activity. The volume summarizes current biological information on Whooping Cranes and provides the basis for future research necessary for conservation of this species. This edited volume concentrates on work completed in the past 20 years in the areas of population biology, behavior and social structure, habitat use, disease and health, captive breeding, and Whooping Crane conservation. Much of the information presented comes from the study and management of remnant and reintroduced populations of Whooping Cranes in the field; some information is from experimentation and breeding of captive Whooping Cranes. Whooping Cranes: Biology and Conservation seeks to inform and galvanize action dedicated to meeting the challenges faced by Whooping Crane managers and conservationists. Thus, it describes one model of endangered species conservation and restoration that will interest a wide audience: professionals that work on cranes; researchers in the fields of small population biology, endangered species, and avian ecology; wildlife veterinarians and those involved in avian husbandry; administrators of management agencies or conservation organizations; conservationists in other fields; teachers of conservation biology or ornithology and their students; and the educated general public. Presents a comprehensive treatment of the biology and ecology of Whooping Cranes, including biology of both remnant and reintroduced populations of Whooping Cranes Describes efforts over the past 45 years on conservation and the challenges of reintroducing an endangered species Includes chapters from a variety of disciplinary and scale perspectives, ranging from evolution, to population ecology, behavior, habitat use, large landscape conservation, conflict, and conservation efforts Features contributions that are readable, yet technically complete and fully referenced Provides an example of partnership and collegial action that integrates information produced by scientific research and operational wildlife management Edited and written by the leading Whooping Crane scholars and practitioners focused on this high-profile species of conservation concern
Download or read book Whooping Crane written by Susan H. Gray and published by Cherry Lake. This book was released on 2007-08-01 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The whooping crane is a unique bird found only in North America and known for its whooping call great height for a bird. Readers will learn about the whooping crane's fight for survival as hunters killed them for their beautiful feathers and humans drained their wetland habitats to build houses.
Download or read book Coastal lagoons written by Pierre Lasserre and published by . This book was released on 1982 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Whooping Crane Recovery Plan 1986 written by Whooping Crane Recovery Team and published by . This book was released on 1986 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Habitat Used by Whooping Cranes During Migration written by Michael J. Armbruster and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
