Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (101)
- SIT Graduate Institute/SIT Study Abroad (17)
- South Dakota State University (13)
- Gettysburg College (9)
- University of Rhode Island (5)
-
- Arkansas State University (4)
- Old Dominion University (4)
- Portland State University (4)
- West Virginia University (4)
- University of Arkansas, Fayetteville (3)
- Utah State University (3)
- Arkansas Tech University (2)
- Connecticut College (2)
- Department of Primary Industries and Regional Development, Western Australia (2)
- Indiana State University (2)
- University of New England (2)
- University of Tennessee, Knoxville (2)
- University of Texas Rio Grande Valley (2)
- Antioch University (1)
- Belmont University (1)
- Bowling Green State University (1)
- Cal Poly Humboldt (1)
- California Polytechnic State University, San Luis Obispo (1)
- Central Washington University (1)
- Dartmouth College (1)
- Eastern Illinois University (1)
- Eastern Kentucky University (1)
- Edith Cowan University (1)
- Furman University (1)
- Georgia College (1)
- Keyword
-
- Mongolia (16)
- Ornithology (12)
- Birds (11)
- Cliff swallow (8)
- Ecology (8)
-
- Climate change (7)
- Petrochelidon pyrrhonota (7)
- Survival (7)
- Coloniality (6)
- Conservation (6)
- Grassland (6)
- Nebraska (6)
- Distribution (5)
- Arkansas (4)
- Avifauna (4)
- Buggy Creek virus (4)
- Grassland birds (4)
- Great Plains (4)
- Migration (4)
- Nest survival (4)
- South Dakota (4)
- Waterfowl (4)
- Arbovirus (3)
- Avian (3)
- Biodiversity (3)
- Bird (3)
- Bird monitoring (3)
- Dispersal (3)
- Drone (3)
- Ducks (3)
- Publication Year
- Publication
-
- School of Natural Resources: Faculty Publications (31)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (22)
- Independent Study Project (ISP) Collection (17)
- Electronic Theses and Dissertations (12)
- Zea E-Books Collection (10)
-
- School of Natural Resources: Dissertations, Theses, and Student Research (9)
- The Prairie Naturalist (7)
- United States Department of Agriculture Wildlife Services: Staff Publications (7)
- Environmental Studies Faculty Publications (5)
- Student Publications (5)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (4)
- Natural Resources Science Faculty Publications (4)
- Student Theses and Dissertations (4)
- United States National Park Service: Publications (4)
- Nebraska Game and Parks Commission: Publications (3)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (2)
- All-Inclusive List of Electronic Theses and Dissertations (2)
- Biological Sciences Faculty Publications (2)
- Biological Sciences Theses & Dissertations (2)
- Graduate Theses and Dissertations (2)
- National Quail Symposium Proceedings (2)
- Theses and Dissertations (2)
- United States Geological Survey: Staff Publications (2)
- ATU Scholars Symposium (1)
- All HCAS Student Capstones, Theses, and Dissertations (1)
- All Master's Theses (1)
- Annual Symposium on Biomathematics and Ecology Education and Research (1)
- Anthropology Department Honors Papers (1)
- Antioch University Dissertations & Theses (1)
- Biology Faculty Publications (1)
- Publication Type
Articles 61 - 90 of 206
Full-Text Articles in Ornithology
Understanding How Agricultural Intensification Impacts Ring-Necked Pheasant Distribution And Survival In Eastern South Dakota, Hilary R. Kauth
Understanding How Agricultural Intensification Impacts Ring-Necked Pheasant Distribution And Survival In Eastern South Dakota, Hilary R. Kauth
Electronic Theses and Dissertations
Historically, pheasants (Phasianus colchicus) have thrived in South Dakota in conjunction with successful land retirement programs or early farming practices through the 1950s, which created interspersions of agriculture and native landscapes that were ideal for pheasants. Recently, the Prairie Pothole ecosystem has undergone rapid agroeconomic expansion, effectively reducing ideal interspersions of native prairie and cropland into agriculturally homogeneous landscapes. Indices of pheasant abundance have suggested persistent population declines since 2008, raising concerns regarding landscape suitability. Our goal was to understand how agriculture intensification impacts pheasant ecology. The objectives were to: 1) estimate overwinter hen probability of survival, resource …
Winter Patch Grazing, Patch Burn Grazing, And Bird Communities In Western South Dakota, Jennifer Lutze
Winter Patch Grazing, Patch Burn Grazing, And Bird Communities In Western South Dakota, Jennifer Lutze
Electronic Theses and Dissertations
Ground nesting bird species are on a considerable decline and research efforts are being made to increase these populations throughout the Great Plains. Ground nesting bird communities found in the Northern Great Plains are driven greatly by varying amounts of cover and area size. Past research implemented patch-burn grazing to increase structural heterogeneity and to increase grassland bird habitat in the tallgrass prairie. While bird populations were very responsive to this management in the Northern Great Plains fire management is viewed negatively, especially for Midwest cattle ranchers. We implemented research to determine if winter-patch grazing on mixed grass prairie could …
Tree Cover In The Surrounding Landscape Reduces Burrowing Owl (Athene Cunicularia) Occupancy Of Black-Tailed Prairie Dog Colonies In South Dakota, Jason P. Thiele, Kristel K. Bakker, Charles D. Dieter
Tree Cover In The Surrounding Landscape Reduces Burrowing Owl (Athene Cunicularia) Occupancy Of Black-Tailed Prairie Dog Colonies In South Dakota, Jason P. Thiele, Kristel K. Bakker, Charles D. Dieter
Natural Resource Management Faculty Publications
Burrowing Owl (Athene cunicularia) population declines have led to the owl’s designation as a species of conservation concern in South Dakota. Burrowing Owls nest primarily in black-tailed prairie dog (Cynomys ludovicianus) colonies, but a significant proportion of colonies in South Dakota are not occupied by owls. We studied the influence of landscape-level habitat variables on colony selection by Burrowing Owls. We used call-playback surveys to document presence or absence of Burrowing Owls at 613 prairie dog colonies throughout western and central South Dakota. We used a geographic information system to calculate the percent cover of prairie dog colonies, grassland, cropland, …
Andean Condor Cliff And Parental Care Behavior: A Behavioral Study Of A Chick And His Free-Living Parents On The Peñón Del Isco, Ecuador, Ellie Cohn
Independent Study Project (ISP) Collection
Andean condors (Vultur gryphus) are a Near Threatened species of New World Vulture found throughout the Andes region of South America. Their population has been significantly diminished in the country of Ecuador due to threats primarily related to habitat loss and persecution by humans. High chick and juvenile mortality also threaten populations and as a result, investigation of wild Andean condors’ cliff behavior and parental care are necessary in order to develop informed and effective conservation management plans. A 22-day observational study was conducted, monitoring a known breeding pair of Andean condors and their approximately three-month-old male chick on the …
Cambios En El Cronograma De Temporadas Reproductivas De Pingüinos De Magallanes (Spheniscus Magellanicus): Relaciones Entre Eventos Fenológicos Y Variables Climáticas, Grace Neumiller
Independent Study Project (ISP) Collection
Estudios a largo plazo han demostrado que hay fluctuaciones a lo largo de la fenología de la vida silvestre a causa de los cambios climáticos (Black, 2016). Los pingüinos de Magallanes (Spheniscus magellanicus) exhiben cambios en el cronograma de los eventos fenológicos de sus temporadas reproductivas a causa de variables oceanográficas y climáticas de su ambiente. A partir de fotos de cámaras trampas, este trabajo describe y analice algunos eventos en la fenología de los pingüinos de Magallanes en Isla Martillo, Canal Beagle, Tierra del Fuego, Argentina: el inicio de la temporada reproductiva, el periodo de muda de pichones, y …
Nesting Success Of Dickcissel (Spiza Americana) And Non-Breeding Grassland Bird Use Of Northwest Arkansas’ Remnant And Restored Tallgrass Prairies, Alyssa L. Derubeis
Nesting Success Of Dickcissel (Spiza Americana) And Non-Breeding Grassland Bird Use Of Northwest Arkansas’ Remnant And Restored Tallgrass Prairies, Alyssa L. Derubeis
Graduate Theses and Dissertations
Dwindling populations of North American grassland birds are linked to habitat loss. Tallgrass prairie only covers 3% of its pre-settlement-era range. Small-scale restoration projects attempt to increase acreage for prairie avifauna, and while some breeding grassland species are present at these sites, nesting success and non-breeding use are still largely unknown. Both life history aspects are required for effective grassland bird conservation. My first objective was to access nest success of the Dickcissel (Spiza americana) at two remnant and two restored tallgrass prairies in Northwest Arkansas. From May-August 2017 and 2018, I found 114 nests that I monitored to determine …
Wyoming Wildlife: A Natural History, Paul Johnsgard, Thomas D. Mangelsen
Wyoming Wildlife: A Natural History, Paul Johnsgard, Thomas D. Mangelsen
Zea E-Books Collection
This book surveys Wyoming’s mammal, bird, reptile, and amphibian faunas. In addition to introducing the state’s geography, geology, climate, and major ecosystems, it provides 65 biological profiles of 72 mammal species, 195 profiles of 196 birds, 9 profiles of 12 reptiles, and 6 profiles of 9 amphibians. There are also species lists of Wyoming’s 117 mammals, 445 birds, 22 reptiles, and 12 amphibians. Also included are descriptions of nearly 50 national and state properties, including parks, forests, preserves, and other public-access natural areas in Wyoming. The book includes a text of more than 150,000 words, nearly 700 references, a glossary …
Bird Monitoring At Homestead National Monument Of America, Nebraska, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke
Bird Monitoring At Homestead National Monument Of America, Nebraska, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke
United States National Park Service: Publications
Executive Summary
In 2009, the Heartland Inventory Monitoring Network initiated breeding bird surveys on Homestead National Monument of America, Nebraska, to address two objectives: (1) to monitor changes in bird community composition and abundance, and (2) to improve our understanding of relationships between breeding birds and habitat, and the effects of management actions on those relationships. This report evaluates trends in the park’s breeding bird populations in the context of trends observed within the North American Bird Conservation Initiative’s (NABCI) Central Mixed Grass Prairie Bird Conservation Region, the region in which the park is located. By doing so, we can …
Bird Monitoring At Herbert Hoover National Historic Site, Iowa, Status Report 2005–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke
Bird Monitoring At Herbert Hoover National Historic Site, Iowa, Status Report 2005–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke
United States National Park Service: Publications
Executive Summary
In 2005, the Heartland Inventory & Monitoring Network initiated breeding bird surveys on Herbert Hoover National Historic Site, Iowa, to address two objectives: (1) to monitor changes in bird community composition and abundance, and (2) to improve our understanding of relationships between breeding birds and habitat, and the effects of management actions on those relationships. This report evaluates trends in the park’s breeding bird populations in the context of trends observed within the North American Bird Conservation Initiative’s (NABCI) Eastern Tallgrass Prairie Bird Conservation Region , the region in which the park is located. By doing so, we …
The State Of Canada’S Birds 2019, North American Bird Conservation Initiative Canada
The State Of Canada’S Birds 2019, North American Bird Conservation Initiative Canada
Other Publications in Wildlife Management
BIRDS TELL US ABOUT THE HEALTH OF OUR WATER, AIR, AND LAND WE NEED TO LISTEN AND ACT
THE STATE OF CANADA’S BIRDS: Shorebirds, grassland birds, and aerial insectivores are in steep decline.
WATERFOWL AND WETLAND BIRDS CONSERVATION PARTNERSHIPS WORK
GRASSLAND BIRDS ARE RUNNING OUT OF TIME
SHOREBIRDS ARE LOSING GROUND
SEABIRDS A GLOBAL CONSERVATION CRISIS
FOREST BIRDS CONSERVATION WITHOUT BORDERS
BIRDS OF PREY AND AERIAL INSECTIVORES LEARNING FROM THE PAST
WHAT’S GOOD FOR BIRDS IS GOOD FOR US
CANADIANS ARE MONITORING THE STATE OF CANADA’S BIRDS
Trends In Nectar Production And Concentration Of Hummingbird-Pollinated Flowers: An Investigation Of Three Flowers Of The Ecuadorian Cloud Forest: Palicourea Demissa, Mezobromelia Capituligera, And Kohleria Affinis, Grace Palmer
Independent Study Project (ISP) Collection
Nectar concentration and sugar production both impact and are impacted by pollinator activity through a complex system of coevolution. Additionally, a variety of morphological and environmental factors influence the nectar properties of animal-pollinated flowering plants. Nectar concentration and nectar production rate (NPR) of three hummingbird-pollinated plants, Palicourea demissa, Mezobromelia capituligera, and Kohleria affinis, were measured. These flowers occur and were studied in the southern section of the Chocó-Andean subtropical montane rainforest, in the Pichincha province of Ecuador. Flowers were bagged for 24 hours and sampled at approximate two-hour time intervals for 12 or 24 hours. Nectar concentration and sugar production …
Avian Upsloping In The Tropics: Myioborus Miniatus And Myioborus Torquatus Abundance In Different Altitudinal Ranges In Boquete, Chiriquí, Panama, Julie Yoon
Independent Study Project (ISP) Collection
Direct and indirect effects of warming global temperatures due to climate change are known to cause upwards shifts of the altitudinal ranges of some avian species. Most susceptible to this trend and at risk of riding the “escalator to extinction” are endemic species in tropical montane cloud forests, such as Myioborus torquatus. There are abiotic factors, like temperature, and biotic interactions, such as the presence of its altitudinal neighbor Myioborus miniatus, that limit the altitudinal range of this bird species in the Neotropics. This study measured abundance of M. miniatus and M. torquatus populations at different altitudinal ranges by point …
Iceland's Migratory Birds In Changing Environmental Conditions: An Interactive Synthesis, Frances J. Duncan
Iceland's Migratory Birds In Changing Environmental Conditions: An Interactive Synthesis, Frances J. Duncan
Independent Study Project (ISP) Collection
Human-driven changes to environmental conditions alter the habitats, behaviors, and migration patterns of migratory species. Changes in temperature, vegetation, and precipitation are just some of the factors contributing to shifts in phenology, demography, and distribution of migratory birds. These changes are driven by anthropogenic climate change and amplified by human land-use change, and are especially intense at high latitudes. This project creatively communicates the effects of environmental changes on three species of migratory birds in Iceland—the northern wheatear, the Greenland white-fronted goose, and the black-tailed godwit—using principles of storytelling and game design. The resulting interactive product is a game that …
Quiscalus Mexicanus Vocalization Pitch And Traffic Noise In Breeding Populations Along The Cinta Costera Highway And In Downtown Gamboa, Panamá, Benjamin P. Gregory
Quiscalus Mexicanus Vocalization Pitch And Traffic Noise In Breeding Populations Along The Cinta Costera Highway And In Downtown Gamboa, Panamá, Benjamin P. Gregory
Independent Study Project (ISP) Collection
Urbanization is one of the fastest-growing threats to the biodiversity of the planet, but not all animals are extirpated by the drastic environmental changes of urbanization, and many are even able to thrive in urban landscapes. Behavioral flexibility is often cited as one reason that successful urban animals can so rapidly adapt to a foreign environment with novel stressors. A well-studied example of urban behavioral flexibility is urban-living birds singing with higher-frequency songs in areas with high levels of traffic noise. The present study investigated this trend in Quiscalus mexicanus, an icterid bird with a huge vocal range, highly sexually …
Impacts Of Anthropogenic Waste On Tasmanian Pacific Gull (Larus Pacificus) Diet, Anne Bartlett
Impacts Of Anthropogenic Waste On Tasmanian Pacific Gull (Larus Pacificus) Diet, Anne Bartlett
Independent Study Project (ISP) Collection
Plastic pollution is one of the foremost environmental issues that the world is currently experiencing. The effects of plastic pollution are great and range from leaching of hazardous chemicals into the environment to ingestion of plastic waste by wildlife, including seabirds. Due to the high rates of plastic consumption by seabirds, many recent studies have been performed to determine the biological impacts of plastic consumption on various seabird species. The Pacific Gull (Larus pacificus) is the world’s largest sea gull and the only gull endemic to Australia, yet very limited information exists on this species. This study examines the impacts …
Bird Monitoring At Effigy Mounds National Monument, Iowa, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke
Bird Monitoring At Effigy Mounds National Monument, Iowa, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke
United States National Park Service: Publications
Executive Summary
In 2009, the Heartland Inventory and Monitoring (I&M) Network) initiated breeding bird surveys on Effigy Mounds National Monument (NM), Iowa, to address two objectives: (1) to monitor changes in bird community composition and abundance, and (2) to improve our understanding of relationships between breeding birds and habitat and the effects of management actions on such relationships. This report evaluates trends in the park’s breeding bird populations in the context of trends observed within the North American Bird Conservation Initiative’s (NABCI) Prairie Hardwood Transition Bird Conservation Region, the bird conservation region in which the park is located. By doing …
Greater Sage-Grouse Survival, Breeding Ecology, Resource Selection, And West Nile Virus Prevalence On The Eastern Fringe Of Their Range, Lindsey Anne Parsons
Greater Sage-Grouse Survival, Breeding Ecology, Resource Selection, And West Nile Virus Prevalence On The Eastern Fringe Of Their Range, Lindsey Anne Parsons
Electronic Theses and Dissertations
The greater sage-grouse (Centrocercus urophasianus) is a sagebrush (Artemisia spp.) obligate species that has experienced population declines over the past several decades. Sage-grouse are a species of conservation concern throughout the Intermountain West and are considered a species of greatest conservation need in South Dakota. Numerous studies have documented drivers of demographic performance at the core of their distribution; however, relatively few studies have examined sage-grouse inhabiting the eastern extent of their range, in South Dakota. We sought to examine sage-grouse space use in multiple seasons, estimate survival, and determine factors affecting nest success in South Dakota …
Identifying An Optimal Bald Eagle Monitoring Program For Southwest Alaska National Parks, Rebecca Kolstrom
Identifying An Optimal Bald Eagle Monitoring Program For Southwest Alaska National Parks, Rebecca Kolstrom
Electronic Theses and Dissertations
The Southwest Alaska Inventory and Monitoring Network includes bald eagle monitoring as part of their Vital Signs Monitoring Plan. Lake Clark National Park and Preserve, Katmai National Park and Preserve, Kenai Fjords National Park, and Wrangell – St. Elias National Park and Preserve monitor bald eagles annually, albeit slightly differently among parks. Since monitoring decisions involve multiple objectives and stakeholders, there was a need for a structured approach to identify an optimal monitoring program. We used a structured decision making process and an iterative, four-round Delphi Process to collect information about long-term bald eagle monitoring from experts. We collected information …
Cerulean Warbler (Setophaga Cerulea) And Associated Species Response To Operational Silviculture In The Central Appalachian Region, Gretchen Emily Nareff
Cerulean Warbler (Setophaga Cerulea) And Associated Species Response To Operational Silviculture In The Central Appalachian Region, Gretchen Emily Nareff
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this study, I assessed the response of Cerulean Warblers (Setophaga cerulea) and 5 additional songbird species to timber harvests prescribed through operational silviculture. The research took place in relatively contiguous mature deciduous forests in 4 states in the central Appalachian region—Kentucky, Pennsylvania, Virginia, and West Virginia, USA.
For the first part of the study, I collected Cerulean Warbler abundance and territory data through point counts and territory mapping, respectively. I used the point count data to model Cerulean Warbler abundance pre- and post-harvest at 5 study areas (Kentucky [n=1], Virginia [n=2], West Virginia [n=2]) and post-harvest at …
Relationships Among Biodiversity Dimensions Of Birds In Nebraska, Nadejda Mirochnitchenko
Relationships Among Biodiversity Dimensions Of Birds In Nebraska, Nadejda Mirochnitchenko
School of Natural Resources: Dissertations, Theses, and Student Research
Biological diversity, or biodiversity, is a multi-dimensional concept that can be decomposed to measure information about taxonomic, phylogenetic, and functional variation within communities. Although the dimensions of biodiversity are interrelated, the assumption that measuring one dimension of diversity can inform about patterns in another dimension does not necessarily follow from theory or empirical study. The relationships among biodiversity dimensions is not well understood, nor how differences among dimensions could influence conservation decision making. Using the avian community as a study system, we explored the relationships of breadth metrics from the taxonomic, phylogenetic, and functional dimensions among each other and across …
Impacts Of Habitat Attributes And Community Gardens On Urban Bird Communities, Samuel Glenn Ortiz
Impacts Of Habitat Attributes And Community Gardens On Urban Bird Communities, Samuel Glenn Ortiz
Theses and Dissertations
The Rio Grande Valley of Southern Texas is a major agricultural region yet has some of the highest hunger rates in the USA. Urbanization and agriculture affect biodiversity, which is well studied, but little is known about how agriculture affects biodiversity in urban areas. We investigated how different urban attributes, including those related to urban farming, impact bird communities in Brownsville and Harlingen, TX, and compared sites that have community gardens to those that do not. To study three key urban habitat characteristics, we identified sites that exhibited all possible combinations of these factors, quantified land cover classes related to …
Examining Patterns In Nest Predation Using Artificial Nests, Victoria L. Simonsen
Examining Patterns In Nest Predation Using Artificial Nests, Victoria L. Simonsen
School of Natural Resources: Dissertations, Theses, and Student Research
The use of artificial nests to study the predation of avian nests has faced disregard by ecologists due to inconsistencies found between the survival rates of real and artificial nests across studies and reviews. The negative perception of artificial nests providing an inconsistent assessment of survival has thus fostered the perception that artificial nests are a secondary option to be used to overcome logistical hurdles associated with achieving sufficient sample sizes in systems where study species are rare or elusive, or as merely a preliminary method to study predation across gradients. We argue that the greatest mistake ecologists have made …
Age-Specific Differences In Fat Reserves And Migratory Passage Of Setophaga Striata (Blackpoll Warbler), Emily N. Filiberti, Noah G. Perlut
Age-Specific Differences In Fat Reserves And Migratory Passage Of Setophaga Striata (Blackpoll Warbler), Emily N. Filiberti, Noah G. Perlut
Environmental Studies Faculty Publications
Adequate fat reserves are vital for long non-stop transatlantic avian-migration movements, such as those made by Setophaga striata (Blackpoll Warbler). Over a 5-y period, we studied differences in preparedness (determined by presence of fat content and arrival time at stopover locations) between hatch-year (HY) and after hatch-year (AHY) Blackpoll Warblers at 3 stopover sites (Hancock and York counties in Maine, and Plymouth County in Massachusetts) covering 2.65° latitude along the Gulf of Maine. Migration timing varied across a latitudinal gradient and between age classes. In September, AHY Blackpoll Warblers were more abundant in the northern and central counties, but HY …
The Ecology Of The Usambara Double-Collared Sunbird (Cinnyris Usambaricus), Sarah Lueder
The Ecology Of The Usambara Double-Collared Sunbird (Cinnyris Usambaricus), Sarah Lueder
Independent Study Project (ISP) Collection
The ecology of the endemic Usambara Double-collared Sunbird (Cinnyris usambaricus) was investigated in the surrounding areas of and within Mazumbai Forest Reserve in the Lushoto District of Tanzania. As there is little known concerning the ecology of the species, this study sought to illuminate multiple aspects of their behavior and interactions. Over fourteen days (November 2nd-November 21st), the abundance of the species, their nesting behavior, their habitat preferences, their vocalizations, their diet, and their aggressive behaviors were observed and then analyzed. It was determined the species’ activity likely peaks in the early morning, their nesting is similar to other species …
Wintering American Black Duck Ecology Of Central Appalachia, Sara E. Yannuzzi
Wintering American Black Duck Ecology Of Central Appalachia, Sara E. Yannuzzi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The American black duck (Anas rubripes) is a species of dabbling duck found only in the northeastern part of North America, and widely hunted until its decline. Since the 1950s, the total population has decreased by 53%. Habitat degradation and decline of wintering and breeding wetlands, historic overharvest, and interactions with the mallard (A. platyrhynchos) are attributed as some of the main causes of the black duck population’s decrease. Many policies and taxa- and habitat-specific joint ventures have since been created to aid in studying and improving North American wetlands and black duck populations throughout both their breeding and wintering …
Emulating Natural Disturbance Using Variable Retention Harvest Regimes: Measuring Short-Term Changes In The Avian Community And Understory Nest Survival, Jennifer L. Wilcox
Emulating Natural Disturbance Using Variable Retention Harvest Regimes: Measuring Short-Term Changes In The Avian Community And Understory Nest Survival, Jennifer L. Wilcox
Student Theses and Dissertations
Over the last 200 years, forests of the eastern United States were largely cleared for industrial and agricultural purposes, and subsequent regrowth has resulted in mostly even-aged, closed canopy stands. Furthermore, dynamic ecological conditions including windthrow, ice storms, floods, fires, tree senescence, and insect outbreaks, which are necessary for maintaining healthy forest ecosystem functions and biodiversity, have become infrequent and/or do not have the same effects in contemporary forests as they did in old growth systems. This has partially led to declines in a number of disturbance-dependent and early-successional avian species, and a need for harvest prescriptions that emulate these …
Causes And Consequences Of Range Expansion In The Genus Tyrannus, Alexander Joseph Worm
Causes And Consequences Of Range Expansion In The Genus Tyrannus, Alexander Joseph Worm
Student Theses and Dissertations
Investigating factors that influence species’ ranges and the potential consequences arising from expansion is vital in successfully predicting future distributions. Species-habitat associations are considered to be fixed, but if they are variable, inaccurate forecasts may occur. Additionally, hybridization with heterospecifics can affect species’ ranges, possibly preventing successful expansion. Here, I used two expanding bird species, Scissor-tailed Flycatcher (Tyrannus forticatus) and Western Kingbird (T. verticalis), to assess how differential habitat selection and hybridization may influence range expansion. First, I explored variation in habitat selection behavior of Scissor-tailed Flycatchers by comparing habitat selection patterns at the periphery with the historic core of …
Land Cover Change Shows Little Effect On Migration Patterns Of Wood Storks And Great Egrets, Johanna Smith
Land Cover Change Shows Little Effect On Migration Patterns Of Wood Storks And Great Egrets, Johanna Smith
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Rehabilitation Of An Injured Golden Eagle (Aquila Chrysaetos): A Case Study, Fida Muhammad Khan, Fakhar-I- Abbas, Abu Ul Hassan Faiz
Rehabilitation Of An Injured Golden Eagle (Aquila Chrysaetos): A Case Study, Fida Muhammad Khan, Fakhar-I- Abbas, Abu Ul Hassan Faiz
Journal of Bioresource Management
Habitat destruction and anthropogenic activities cause wild birds to migrate towards urban areas in search of food and sometimes nesting in high-roof buildings, where they are caught by local people using different techniques and are further used for hunting or recreational purposes. An injured Golden Eagle (Aquila chrysaetos) was found entangled in bushes near the vicinity of Balkasar Research Complex, Chakwal, Pakistan. After complete physical examination, a wound on the right wing and closed leg fracture was diagnosed. The successful treatment was done by anti-parasitic and anti-bacterial drugs with careful monitoring. Splint was adjusted after aligning the fractured …
Rethinking Urban Green Infrastructure As A Means To Promote Avian Conservation, Allen Lau
Rethinking Urban Green Infrastructure As A Means To Promote Avian Conservation, Allen Lau
Master's Projects and Capstones
There is an under-recognized potential for cities to use urban green infrastructure to contribute to avian biodiversity conservation. At the global scale, climate change and growing urbanization are primary global drivers leading to decline and homogenization in world bird populations. Birds are fundamental and intricate species in ecosystems, and even in urban areas, act as indicator and regulator species contributing to healthy ecosystem function. While many cities have recognized the economic and social benefits associated with green spaces, such as the vast benefits ecosystem services provide to the urban dweller, the use of green spaces to concurrently contribute to avian …