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Articles 31 - 60 of 149
Full-Text Articles in Animal Sciences
Kentucky Warbler (Vol. 94, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The Birds Of Nebraska, Paul Johnsgard
The Birds Of Nebraska, Paul Johnsgard
Zea E-Books Collection
This annotated list of the birds of Nebraska grew gradually out of research associated with my writing of the Birds of the Great Plains: Breeding Species and Their Distribution (Johnsgard, 1979a). It expands and updates an earlier version that was published in 2013 by the University of Nebraska–Lincoln Libraries DigitalCommons’ Zea Books (Johnsgard, 2013a). It has been updated and modified in its current revision to conform with the most recent (2017) major revision of the American Ornithologists’ Society’s Checklist of North American Birds (Chesser et al., 2017). It has also been modified in its current revision to conform very closely …
Kentucky Warbler (Vol. 94, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Bulletin No. 43: Birds Of The Connecticut College Arboretum: Eighty Years Of Change, Robert Askins
Bulletin No. 43: Birds Of The Connecticut College Arboretum: Eighty Years Of Change, Robert Askins
Bulletins
No abstract provided.
Kentucky Warbler (Vol. 94, No. 1), Kentucky Library Research Collections
Kentucky Warbler (Vol. 94, No. 1), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Opportunities And Challenges For Big Data Ornithology, Frank A. La Sorte, Christopher A. Lepczyk, Jessica L. Burnett, Allen H. Hurlbert, Morgan W. Tingley, Benjamin Zuckerberg
Opportunities And Challenges For Big Data Ornithology, Frank A. La Sorte, Christopher A. Lepczyk, Jessica L. Burnett, Allen H. Hurlbert, Morgan W. Tingley, Benjamin Zuckerberg
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Recent advancements in information technology and data acquisition have created both new research opportunities and new challenges for using big data in ornithology. We provide an overview of the past, present, and future of big data in ornithology, and explore the rewards and risks associated with their application. Structured data resources (e.g., North American Breeding Bird Survey) continue to play an important role in advancing our understanding of bird population ecology, and the recent advent of semistructured (e.g., eBird) and unstructured (e.g., weather surveillance radar) big data resources has promoted the development of new empirical perspectives that are generating novel …
Habitat Selection, Survival, And Movement Ecology Of The American Woodcock (Scolopax Minor) In Louisiana Usa, Elisa Constancia Elizondo
Habitat Selection, Survival, And Movement Ecology Of The American Woodcock (Scolopax Minor) In Louisiana Usa, Elisa Constancia Elizondo
LSU Master's Theses
The American Woodcock (Scolopax minor) is a migratory upland game species occurring across much of eastern North America. Across its breeding range in the northern U.S. and southern Canada, this species has experienced significant, pervasive declines over the last half century. As woodcock populations continue to decline, active habitat management for this species has become increasingly important.
The state of Louisiana has substantial amounts of woodcock habitat and receives wintering birds from across the woodcock range. However, few data exist regarding survival rates, habitat utilization, and movement patterns across the state.
In order to better manage for woodcock …
Kentucky Warbler (Vol. 93, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 93, No. 4), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The North American Quails, Partridges, And Pheasants, Paul A. Johnsgard
The North American Quails, Partridges, And Pheasants, Paul A. Johnsgard
Zea E-Books Collection
This book documents the biology of six species of New World quails that are native to North America north of Mexico (mountain, scaled, Gambel’s, California, and Montezuma quails, and the northern bobwhite), three introduced Old World partridges (chukar, Himalayan snowcock, and gray partridge), and the introduced common (ring-necked) pheasant. Collectively, quails, partridges, and pheasants range throughout all of the continental United States and the Canadian provinces. Two of the species, the northern bobwhite and ring-necked pheasant, are the most economically important of all North American upland game birds. All of the species are hunted extensively for sport and are highly …
Common Birds Of The Brinton Museum And Bighorn Mountains Foothills, Jackie Canterbury, Paul Johnsgard
Common Birds Of The Brinton Museum And Bighorn Mountains Foothills, Jackie Canterbury, Paul Johnsgard
Zea E-Books Collection
Part I. The Brinton Museum and Its Birds
Part II. Profiles of 48 Common Local and Regional Birds: Ring-necked Pheasant, Sharp-tailed Grouse, Great Blue Heron, Turkey Vulture, Osprey, Bald Eagle, Cooper’s Hawk, Red-tailed Hawk, Rough-legged Hawk, Sandhill Crane, Killdeer, Eastern Screech-Owl, Great Horned Owl, Broad-tailed Hummingbird, Calliope Hummingbird, Belted Kingfisher, Downy Woodpecker, Red-naped Sapsucker, Northern Flicker, American Kestrel, Western Wood-Pewee, Say’s Phoebe, Eastern Kingbird, Black-billed Magpie, American Crow, Common Raven, Tree Swallow, Cliff Swallow, Black-capped Chickadee, Mountain Chickadee, Red-breasted Nuthatch, Brown Creeper, House Wren, American Dipper, Mountain Bluebird, Cedar Waxwing, Yellow Warbler, Yellow-rumped Warbler, Spotted Towhee, Vesper Sparrow, Dark-eyed Junco, …
Kentucky Warbler (Vol. 93, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 93, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Kentucky Warbler (Vol. 93, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 93, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Heterogeneity Of Avian Breeding Habitat On Grazing Lands Of The Northern Great Plains, Maggi S. Sliwinski
Heterogeneity Of Avian Breeding Habitat On Grazing Lands Of The Northern Great Plains, Maggi S. Sliwinski
School of Natural Resources: Dissertations, Theses, and Student Research
Native rangelands in the Great Plains are largely privately owned and used for beef production. Vegetation heterogeneity is important for maintaining biodiversity, but private land may be more homogenous than desired. My research had two components: 1) to examine whether a variety of grazing strategies created vegetation heterogeneity in a large, intact rangeland, and 2) to understand beef producers’ attitudes about vegetation heterogeneity.
First, I sampled vegetation structure, composition, and bird abundance at multiple plots on eleven management units in Cherry County, Nebraska. Units were managed with commonly used grazing strategies (e.g., short-duration grazing and season-long continuous grazing). I examined …
Time-Activity And Energy Budgets Of Eared Grebes (Podiceps Nigricollis) At Salton Sea, Samantha San Francisco
Time-Activity And Energy Budgets Of Eared Grebes (Podiceps Nigricollis) At Salton Sea, Samantha San Francisco
Theses
Time-activity budgets have been a widely accepted way of approximating the daily energy expenditure of many species, including waterbirds. For this study, focal animal sampling was used to study Eared Grebes (Podiceps nigricollis) at their post-wintering stopover site, Salton Sea. Daylight time-activity budgets were converted to energy budgets using energy equivalents for diving, preening, swimming, and resting on water developed for Eared Grebes previously by H. I. Ellis (1994). Post-wintering Eared Grebes arrive at Salton Sea in waves at differing times in the spring. As a result, there can be individuals in a variety of physiological states during …
Ecological And Evolutionary Relationships Between Feather Mites And Parulid Warblers, Alix Elizabeth Matthews
Ecological And Evolutionary Relationships Between Feather Mites And Parulid Warblers, Alix Elizabeth Matthews
Student Theses and Dissertations
Host-symbiont relationships are ubiquitous in nature, yet the evolutionary and ecological processes that have shaped these intricate associations are not well understood. Here, I explored the complex symbiosis between feather mites and their warbler hosts. I first considered how ecological context may influence feather mite abundance on two ecologically dissimilar warbler species, and how feather mite abundance may in turn influence the current reproduction and annual survival of hosts. Ecological context of hosts does play a role in feather mite abundance, and even though current reproduction may not be influenced by feather mite abundance, annual survival may be at a …
Kentucky Warbler (Vol. 93, No. 1), Kentucky Library Research Collections
Kentucky Warbler (Vol. 93, No. 1), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Kentucky Warbler (Vol. 92, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 92, No. 4), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The North American Sea Ducks: Their Biology And Behavior, Paul A. Johnsgard
The North American Sea Ducks: Their Biology And Behavior, Paul A. Johnsgard
Zea E-Books Collection
The 21 species of sea ducks are one of the larger subgroups (Tribe Mergini) of the waterfowl family Anatidae, and the 16 species (one historically extinct) that are native to North America represent the largest number to be found on any continent, and also the largest number of endemic sea duck species native to any continent.
Although generally not important as game birds, the sea ducks include some economically important birds such as the eiders, the basis for the Arctic eiderdown industry and a historically important food source for some Native American cultures. They also include what is probably the …
Kentucky Warbler (Vol. 92, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 92, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The North American Geese: Their Biology And Behavior, Paul A. Johnsgard
The North American Geese: Their Biology And Behavior, Paul A. Johnsgard
Zea E-Books Collection
The eight currently recognized species of North American geese are part of a familiar group of birds collectively called waterfowl, all of which are smaller than swans and generally larger than ducks. They include the most popular of our aquatic gamebirds, with several million shot each year by sport hunters. Our two most abundant waterfowl, the Canada goose and snow goose, have populations collectively totaling about 15 million individuals. Like swans, the lifelong pairbonding of geese, their familial care, and prolonged social attachment to their offspring are legendary. Their seasonal migratory flights sometimes span thousands of miles, and the sight …
The North American Grouse: Their Biology And Behavior, Paul A. Johnsgard
The North American Grouse: Their Biology And Behavior, Paul A. Johnsgard
Zea E-Books Collection
The ten currently recognized species of grouse in North America have played an important role in America’s history, from the famous but ill-fated heath hen, a primary source of meat for the earliest New England immigrants, to the ruffed grouse, currently one of the most abundant and soughtafter upland game birds in more than 40 states and provinces. This book summarizes the ecology, reproductive biology, and social behavior of all ten of the extant North American grouse species. It also describes the current status of grouse populations, some of which are perilously close to extinction. The social behavior of grouse …
Swans: Their Biology And Natural History, Paul A. Johnsgard
Swans: Their Biology And Natural History, Paul A. Johnsgard
Zea E-Books Collection
The seven species of swans of the world are an easily and universally recognized group of waterfowl, which have historically played important roles in the folklore, myths and legends in many of the world’s cultures. Among the largest of all flying birds, they have also almost universally been used as symbols of royalty, grace and beauty, and largely for these reasons swans have only rarely been considered acceptable as targets for sport hunting. Swans occur on all the continents except Africa, although most species are associated with the temperate and arctic zones of North America and Eurasia. Among birds, swans …
Kentucky Warbler (Vol. 92, No. 1), Kentucky Library Research Collections
Kentucky Warbler (Vol. 92, No. 1), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Birding Nebraska’S Central Platte Valley And Rainwater Basin, Paul A. Johnsgard
Birding Nebraska’S Central Platte Valley And Rainwater Basin, Paul A. Johnsgard
Zea E-Books Collection
Central Nebraska's Platte River and Rainwater Basin are primary stops in the migration patterns of numerous North American waterfowl, including sandhill and whooping cranes, sandpipers, geese, ducks, gulls, and shorebirds of many types. Upland species also abound there as well. The region's most eminent ornithologist provides birding and travel information for casual tourists and hard-core enthusiasts: locations, seasons, events, routes, accommodations, contacts, etc. A complete species list is also included. This birders' guide is as essential as your boots and binoculars.
The central Platte River Valley region, as defined by Brown & Johnsgard (2012) and adopted here, encompasses 12 south-central …
Kentucky Warbler (Vol. 91, No. 4), Kentucky Library Research Collections
Kentucky Warbler (Vol. 91, No. 4), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Kentucky Warbler (Vol. 91, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 91, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
At Home And At Large In The Great Plains: Essays And Memories, Paul A. Johnsgard
At Home And At Large In The Great Plains: Essays And Memories, Paul A. Johnsgard
Zea E-Books Collection
This volume presents fourteen essays (some updated) that originally appeared in Prairie Fire, a monthly free newspaper that for seven years (as of 2015) has carried important messages of social, environmental, and economic issues in a mature and nonpartisan manner to tens of thousands of residents of Nebraska, western Iowa, eastern Colorado, and southern South Dakota, and by mail to subscribers in the rest of the world. These essays discuss the North American east-west ecological boundaries, spring migration events, birds at the bird feeder, feathered survivors of a glacial past, the threatened sharp-tailed grouse of Nebraska and South Dakota, and …
Kentucky Warbler (Vol. 91, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 91, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Global Warming And Population Responses Among Great Plains Birds, Paul A. Johnsgard
Global Warming And Population Responses Among Great Plains Birds, Paul A. Johnsgard
Zea E-Books Collection
Based on an analysis of 47 years (1967–2014) of Audubon Christmas Bird Counts (CBC), evidence for population changes and shifts in early winter (late December) ranges of nearly 150 species of birds in the Great Plains states is summarized, a region defined as including the Dakotas, Nebraska, Kansas, Oklahoma, and the Texas panhandle. The rationale for this study had its origins in Terry Root’s 1988 Atlas of North American Wintering Birds. Root’s landmark study provided a baseline for evaluating the nationwide winter distributions of 253 North American birds in the mid-20th century, using data from the National Audubon Society’s …
Kentucky Warbler (Vol. 91, No. 1), Kentucky Library Research Collection
Kentucky Warbler (Vol. 91, No. 1), Kentucky Library Research Collection
The Kentucky Warbler
No abstract provided.