Download or read book Census Methodology and Habitat Use of Long billed Curlews Numenius Americanus in Saskatchewan written by Janna M. Foster-Willfong and published by . This book was released on 2003 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Long-billed Curlew (Numenius americanus) is currently listed as a species of 'Special Concern' by the Committee on the Status of Endangered Wildlife in Canada mainly due to historic declines as a result of over-hunting and habitat loss. Despite its listing, the curlew has received little scientific attention in Canada. My main objectives were to evaluate census methods and determine seasonal habitat use by curlews in southwestern Saskatchewan. In 1999 and 2000,point counts were made every 1600 m at 200 sampling points along various road networks. I compared the effectiveness of a traditional listening census technique with call response surveys for detecting curllews. I found that call response surveys are relatively ineffective at detecting birds in the field. During the surveys, all curlews observed were recorded and the habitat within the sampling points was classified as native prairie, tame pasture, stubble, fallow, tame hay, fall/winter crop or spring/summer crop. The census occurred during the pre-lay, incubation, and post-hatch periods, which enabled me to assess whether there was a shift in habitat use over the summer. My results indicate that curlews generally prefer native grassland and avoid areas of stubble, fallow and tame hay. Significantly more curlews than expected were observed in spring/summer cropland during the post-hatch periods. Tame grasslands were typically used in relation to their relative abundance.
Download or read book Inventory and Monitoring of Wildlife Habitat written by Allen Cooperrider and published by . This book was released on 1986 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Estimate and Habitat Associations of the Long billed Curlew Numenius Americanus in Alberta written by Elizabeth Jane Saunders and published by . This book was released on 2001 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Estimate and Habitat Associations of the Long billed Curlew Numenius Americanus in Alberta written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat and Space Use by Long billed Curlews Numenius Americanus in California s Central Valley written by Kristin A. Sesser and published by . This book was released on 2013 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: A significant number of the world's population of long-billed curlews (Numenius americanus) winter in California's Central Valley amidst a variety of human-altered habitats. I used satellite telemetry to study non-breeding habitat use and space use of 10 (5 male, 5 female) long-billed curlews over three years. Individual curlews varied in size of their home range and core use areas. Males had significantly smaller home ranges and core use areas than females. Curlews showed fidelity to their home ranges from year to year, but use of individual fields within those home ranges changed by season and year. Male curlews exhibited stronger site fidelity than females. I used resource utilization functions to examine variation in individual habitat use. Curlews used a variety of agricultural habitats, including alfalfa, irrigated pasture, rice, and field crops such as wheat. In the late summer and fall curlews used alfalfa and pasture more than other available crop types. This trend continued into the winter, but curlews also increased their use of other crop types. This study represents a first opportunity to follow individual shorebird movements and habitat use throughout the non-breeding season over multiple annual cycles.
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Grassland Ecosystem Conditions in the Southwestern United States written by and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Volume 2 (this volume) describes wildlife and fish species, their habitat requirements, and species-specific management concerns, in Southwestern grasslands. This assessment is regional in scale and pertains primarily to lands administered by the Southwestern Region of the USDA Forest Service (Arizona, New Mexico, western Texas, and western Oklahoma)."--Abstract.
Download or read book Assessment of Grassland Ecosystem Conditions in the Southwestern United States Wildlife and fish written by and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2. Wildlife and fish.
Download or read book Status of the Long billed Curlew in British Columbia written by Richard James Cannings and published by British Columbia, Wildlife Branch. This book was released on 1999-01-01 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Eco ethological Aspects of a Breeding Population of Long billed Curlews Numenius Americanus in Nebraska written by Thomas K. Bicak and published by . This book was released on 1977 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Assessment and Conservation Action Plan for the Long Billed Curlew Numenius Americanus written by U. S. Fish U.S. Fish and Wild life Service and published by CreateSpace. This book was released on 2015-02-14 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The historical breeding range of Long-billed Curlews (Numenius americanus) was the western U.S. and the southern Canadian Prairie Provinces from California north to British Columbia and east to southern Manitoba and Wisconsin, northern Iowa and eastern Kansas. However, this breeding distribution has contracted and Long-billed Curlews have lost about 30% of their historical range. The eastern edge of the current breeding range is the western Great Plains from the Texas panhandle north throughout southwestern and south central Saskatchewan. Long-billed Curlews currently winter along the southwestern U.S. coast from central California, southern Texas and Louisiana south along both of Mexico's coasts to Guatemala, and are casual along the Atlantic coast north to New Brunswick, the southeastern South Carolina and Florida coasts, and the West Indies.
Download or read book Building the Full Annual Cycle Picture for Long billed Curlews written by Stephanie E. Coates and published by . This book was released on 2018 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Migratory birds face threats throughout the annual cycle, and cumulative effects from linkages between the breeding and non-breeding grounds may impact species at the population level. Long-billed Curlews (Numenius americanus) are a migratory shorebird of conservation concern associated with grasslands that show breeding population declines at some regional and local scales. Curlews exhibit high site fidelity to breeding territories, but also spend approximately 75% of the year on the wintering grounds. Therefore, localized population declines could indicate localized threats, in the breeding or wintering grounds. However, little information is available regarding the spatial distribution of curlews on the wintering grounds, especially for Mexico. Furthermore, breeding ground studies which examine habitat selection and nest success in the context of predator and anthropogenic pressures are lacking. We add critical information that could help pinpoint conservation issues, including understanding limitations to nesting success and mapping spatial distribution and habitat use patterns during the non-breeding season. On the breeding grounds, we used a conditional logistic regression model to compare used nest-sites to available random sites and examine habitat selection within territories. We also studied correlates of nesting success with a generalized linear model for 128 curlew nests at five sites in the Intermountain West. During the non-breeding season, we attached satellite transmitters to track 21 curlews that bred in the Intermountain West and wintered in California and Mexico and quantified 95% home range and 50% core use size via utilization distributions created with dynamic Brownian Bridge Movement Models. For 14 individuals, we tracked multiple winter seasons and compared inter-annual site fidelity among winter areas, sexes, and habitat type with a Utilization Distribution Overlap Index. We documented four main wintering areas: (1) Central Valley of California, (2) the adjoining Imperial and Mexicali Valleys of California and Mexico, (3) the Chihuahuan Desert of inland Mexico, and (4) coastal areas of western Mexico and the Baja Peninsula. Curlews wintering in coastal areas had significantly smaller home ranges and fewer core use areas than inland-wintering curlews. Home ranges in the Central Valley were larger than other inland areas, and Central Valley females had larger home ranges than Central Valley males. Inter-annual site fidelity for wintering curlews was high, regardless of habitat type or sex. On the breeding grounds, curlews selected habitats for nest-sites with lower vegetation height and lower percent cover of grasses, bare ground, and shrubs than available sites. Nest-sites were six times more likely to have a cowpie within 50 cm than random sites. Higher probability of nest success was associated with higher curlew density in the nesting area, increasing percent cover of conspicuous objects such as cowpies within approximately two meters of the nest, and – surprisingly – higher densities of American Crows and Black-billed Magpies in the breeding area. In a separate analysis with a subset of nests (n = 100), we found nests had higher probability of success when they were farther from roads and perches. Given the central role of working lands to breeding curlews in much of the Intermountain West, an understanding of limitations to nesting success in these diverse landscapes is necessary to guide adaptive management strategies in increasingly human-modified habitats. Similarly, foundational understanding of winter spatial ecology is essential for understanding population declines which may be related to linkages between breeding and non-breeding seasons. Overall, these findings provide valuable information for full annual cycle conservation and will be particularly constructive for conservation planning once range-wide migratory connectivity is mapped."--Boise State University ScholarWorks.
Download or read book Bird Diversity Density and Habitat Selection in the Cariboo Chilcotin Grasslands written by Tracey D. Hooper and published by Delta, B.C. : Canadian Wildlife Service. This book was released on 1991-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long Billed Curlew Conservation Management Plan 2010 2015 written by Brandy L. Downey and published by . This book was released on 2010 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The long-billed curlew (Numenius americanus) is found throughout the prairie and into parts of the parkland region of Canada. It is typically located in large, undisturbed, moderately grazed, short grass and fescue prairie. The long-billed curlew has been designated a Species of Special Concern in Alberta and Canada due to the contraction of its range and small, possibly declining, population. Habitat alteration is the primary threat to this species. This plan recommendations various ways to conserve long-billed curlew populations and habitat, including: avoid alteration of native grasslands by using existing stewardship programs that are designed to conserve habitat and protect the long-billed curlew during critical time periods; conduct research to evaluate the impact of agricultural practices on nesting success; inform the public about the benefits of native prairie conservation; and promote a native grassland retention policy for public lands."--Document.
Download or read book Seasonal Abundance Distribution and Habitat Attributes of Nonbreeding Long billed Curlews Numenius Americanus in the San Joaquin Valley of Central California written by Marianne G. Huizing and published by . This book was released on 2011 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Long billed Curlew Numenius Americanus Distributions at Three Spatial Scales written by Ryan L. Mathis and published by . This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
