Ornithology Commons^™

The Role Of Interspecific Competition In The Range Collapse Of A Songbird After Rapid Range Expansion, Zachary H. Vickers

Graduate Theses/Dissertations

There is a wealth of evidence demonstrating interspecific competition in birds, but often this evidence is localized and may or may not entirely explain range dynamics over large geographic extents. Bewick’s Wrens (Thrymanes bewickii) and House Wrens (Troglodytes aedon) are small passerine birds of the family Troglodytidae. Previous experimental evidence has demonstrated that Bewick’s Wrens suffer from asymmetric interference competition from House Wrens in Kansas, and this evidence has been cited as the likely reason for the historically recent range collapse of the Bewick’s Wren. However, I argue that localized experimental evidence is insufficient to explain abundance trends over large …

8th International Galliformes Symposium (East Java, Indonesia: October 9-13, 2023): Book Of Abstracts, Iucn-Ssc Galliformes Specialist Group, World Pheasant Association, Geoffrey Davison

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Overview of the research and conservation of Galliformes in Indonesia, Jon-Paul Rodriguez

Overview of the research and conservation of Galliformes in Indonesia, Dewi M. Prawiradilaga

Impact of climate change and human pressure on Galliformes, Nurul L. Winarni and Habiburrachman A. H. Fuad

Distribution model of the great argus pheasant in the Bukit Barisan Selatan National Park, Femei Rahmilija, Jarwadi Budi Hernowo, and Lilik Budi Prasetyo

Surviving logging: The persistence of pheasants in sustainably managed logged forests in east Kalimantan, Indonesia, Agus Sudibyo Jati, Hiromitsu Samejima, and Kanehiro Kitayama

Respect for nature, respect for people: successful community-based conservation could lead to …

A Return To The Staging Grounds: Reassessment Of Aleutian Cackling Goose Spring Distribution In North Humboldt Bay, Shaun W. Thornton

Cal Poly Humboldt theses and projects

After a 15-year interval in research, spatial and temporal patterns of the Aleutian cackling goose during spring staging was assessed again in 2022. During my study, 3,389 goose flocks were recorded in Arcata Bottoms staging site, 1 January to 21 April 2022, amounting to an estimated total of 2,248,512 goosedays, which was 336.8% higher than 2007 estimates of 667,485 goosedays. Geese continued to use pastures with a wide range of landscape characteristics primarily represented by livestock grazing practices. Goose use was greater than availability on beef-cattle fields early in the season and dairy-cow fields later in the season. Human disturbances …

Tradeoffs May Counteract Effects Of Telecommunication Towers On Osprey Nesting, Gage R. Barnes, Kate G. Slankard, John B. Hewlett, Andrea K. Darracq

Human–Wildlife Interactions

The number of telecommunication towers (TCTs) throughout the United States has and continues to increase exponentially. Increased TCT placement has been implicated in local population increases in platform nesting birds such as ospreys (Pandion haliaetus). However, osprey use of artificial structures can cause conflicts with humans because of economic costs and risks to human safety. Managers require better information regarding the effect of artificial nesting surfaces, such as TCTS, on osprey reproduction to make informed decisions regarding species conservation and to mitigate potential conflicts. The objective of our study was to evaluate the influence of TCTs on osprey …

Effectiveness Of Citizen Engagement In A State Agency Egg-Oiling Program To Reduce Urban Canada Goose Populations And Conflicts, Charles H. Cope, Tom F. Bidrowski, Jon P. Beckmann

Human–Wildlife Interactions

In many cases, urban environments create high-quality habitat for wildlife that may allow species to form commensal relationships with humans. Positive impacts of urban environments (e.g., high-quality nesting habitat) may enhance survival and/or increased fecundity. One species that has shown the ability to form commensal relationships with humans in urban environments is Canada geese (Branta canadensis). Canada goose populations have continued to rebound in Kansas, USA, and across the Great Plains, such that the estimated resident population in Wichita, Kansas, grew from 0 to >5,000 resident geese and the over-winter population increased from 1,600 in 1997 to >18,000 …

An Unmanned Aircraft System For Marking Live Power Lines To Prevent Bird Collisions, Mattheuns D. Pretorius, Lourens Leeuwner, Kaajial Durgapersad, Constant Hoogstad, Peter Beckedahl, Michael D. Michael, Kishaylin Chetty

Human–Wildlife Interactions

Collisions with overhead power lines represent a significant cause of mortality for a number of large bird species worldwide. Certain threatened species are severely impacted by power line collisions, particularly those for which there are no other known significant threats. In South Africa, bird collisions with overhead power line cables, including collisions with phase conductors and shield wires, contribute significantly to annual threatened bird species mortalities associated with Eskom power lines. The most practical mitigation measure is to attach bird anti-collision devices as markers on the cables. Current marking methods involve installations by hand, where linemen are hoisted up to …

Effects Of Climate Change And Landscape-Scale Forest Management On Avian Communities, Abundance, And Nest Success In The Appalachian Mountains, Hannah L. Clipp

Graduate Theses, Dissertations, and Problem Reports (ETD)

Birds are integral components of ecosystems and account for billions of dollars in tangible benefits to humans. As such, recent continental declines of bird species have ecological and economic consequences, providing the impetus for my dissertation research. I identified knowledge gaps and proposed novel questions about how birds in the Appalachian Mountains are influenced by changing environmental conditions due to climate change and forest management. The Appalachian Mountains encompass an important biogeographical region with high conservation value due to its myriad habitats and corresponding bird species diversity. Thus, there is a critical need to evaluate the effects of shifting climate …

Assessing Forest Features And Nocturnal Flying Insect Diversity As Predictors Of Eastern Whip-Poor-Will Occupancy In Foraging Habitat, Clark D. Alexander

Graduate Theses, Dissertations, and Problem Reports (ETD)

Eastern whip-poor-will (Antrostomus vociferus), an insectivorous caprimulgid, have seen an approximate 2.76% annual population decrease since the 1960s, with their breeding and foraging ecology largely unknown due to their nocturnal and cryptic behavior. I conducted research to assess abiotic and biotic variables correlated with detection, and occupancy probability, and prey species diversity on ~104,000 hectares of forest in West Virginia, owned by the private timber company Weyerhaeuser. Previous literature indicates that Eastern whip-poor-will, and their prey, require ephemeral habitat such as recently cleared and early successional forests, like those historically created by forest fires, wind shears, hurricanes, and …

First Case Of Leucism In The House Bunting Emberiza Sahari In Algeria, Abdelwahab Chedad, Djamel Bendjoudi, Brahim Beladis, Omar Guezoul

Journal of Bioresource Management

Continue to monitor the bioecology of the House bunting in Algeria and mentioned the birds that carry abnormalities and genetic mutation (Albinism and leucism), including passerines species. A male House bunting Emberiza sahari with leucism (partial albinism) was recorded on December 6, 2021, in the city center of the M'Zab Valley at Ghardaïa (Algerian Sahara).

Ecological Diagnosis And Diversity Structure Of The Forest Birds Community In Machroha Forest (Souk Ahras – Northeastern Algeria), Abdelhak Boucif, Mouslim Bara, Moussa Houhamdi

Journal of Bioresource Management

Machroha forest is a large hot spot of biodiversity of northeastern region of Algeria. It is dominated by several species of oak tree that can contribute to the conservation of many animals such as birds. Our study was carried out from February 2019 to July 2021, in order to diagnosis the ecological status of forest birds and their dynamics. Our results reported that this forest was including 19.21% of the Algerian avifauna diversity. We recorded 78 species of birds classified in 32 families. The main species were sedentary with an insectivorous trophic categories and terrestrial guild. Three species observed in …

Eavesdropping On Animals: Can Bioacoustics Help Save Species?, Zoe Grueskin

Capstones

Around the world, scientists are using sound to study the natural world in a growing field called bioacoustics. Researchers are eavesdropping on frogs and fish, elephants and earthworms, and many hope what they hear can inform and inspire conservation action around the world. From the field’s auspicious beginning with accidentally-recorded whales, to researchers today listening to locations as diverse as the Arctic seafloor and India’s Western Ghats mountain range, this capstone project explores the potential — and limitations — of conservation bioacoustics. Read the story, see photos and listen to audio pieces featuring three bioacousticians and their field recordings here: …

A Subspecies-Level Database Of Amazonian Bird Distributions, With Inferences On Suture Zones And Conservation, Marco Antonio Rego

LSU Doctoral Dissertations

Amazonia has the largest and most biodiverse tropical forest on the planet. However, the distributions of its species are still poorly understood, even for well-studied vertebrates such as birds. Available distribution maps for Amazonian birds often lack accuracy in delimiting the area where species occur. Existing distributional information for Amazonian birds is often limited to species-level level taxonomy, even though many Amazonian bird subspecies represent biological species. Here, I investigate the geographic distributions of 4,148 bird taxa (species and subspecies) using museum scientific specimens as the primary source of data. To build the data base I use more than 600,000 …

Schramm Park Fall Field Days, Janis Paseka

Nebraska Bird Review

The 2022 NOU Fall Field Days were held at Schramm Park State Recreation Area, south of Gretna in Sarpy County, on September 21-23, with approximately 60 in attendance. The meeting had been scheduled and cancelled twice in the two previous years due to coronavirus concerns. The total species count was 119, including a Sandhill Crane, Prairie Falcon (early for away from breeding area), Winter Wren, and early Snow Bunting. A Limpkin, which had been found in late June at Wehrspann Wetlands mitigation pond in Sarpy County and was still seen through late November in the Wehrspann Lake area, was not …

The Nebraska Bird Review, Index To Volume 90

Nebraska Bird Review

From: Abbott, Sydney 56

To: Zonotrichia leucophrys oriantha 66, 146

The Nebraska Bird Review Volume 90 December 2022 Number 4

Nebraska Bird Review

Fall Field Report, August - November 2022 by W. Ross Silcock ...126

Remembering Clem Klaphake by Don Paseka ...151

Schramm Park Fall Field Days, Sept. 21-23, 2022 ... 154

Index to Volume 90 ...159

Subscription and Organization Information …175

Remembering Clem Klaphake, Don Paseka

Nebraska Bird Review

Clement (Clem) Klaphake passed away on December 30, 2022, from complications of Parkinson’s disease, which he struggled with for several years. He was born in Melrose, Minnesota, in 1943 and grew up working on his parents’ dairy farm, which included the usual menagerie of other farm animals typical of that time. Perhaps it was the routine of milking twice a day, seven days a week, or the impressive scar on his leg from a boar tusk, but Clem was destined to leave the farm and become a life-long educator. ... After getting his degree in 1971, Clem was hired to …

The Distribution And Reproductive Success Of The Western Snowy Plover Along The Oregon Coast - 2022, David J. Lauten, Kathleen A. Castelein, Daniel Farrar, Mary Lee, Eleanor P. Gaines

Institute for Natural Resources Publications

We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Charadrius nivosus nivosus) along the central and south coast of Oregon from 1 April – 15 September 2022. We surveyed and monitored plover activity in a project area that included, from north to south, Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River Habitat Restoration Area (HRA) and adjacent lands, and Floras Lake. Our objectives for the project area in 2022 were to: 1) estimate the size of the adult Snowy …

Application Of Stable Isotopes To Study Movement Ecology And Diet Variation In A Migratory Songbird, Andrea Contina, Allison K. Pierce, Scott W. Yanco, Eli S. Bridge, Jeffrey F. Kelly, Michael B. Wunder

School of Integrative Biological & Chemical Sciences Faculty Publications

Whether and how migratory organisms exhibit interindividual behavioral and/or physiological variation across movement strategies remains an open question. The Dark-eyed Junco (Junco hyemalis) is a migratory songbird known for its intraspecies variation displayed in relation to morphology, song repertoires, and migration. Thus, studies focusing on juncos can reveal how migratory strategy may covary with other individual-scale factors and, therefore, identify the selective forces driving intraspecies variations throughout its distribution. We used Dark-eyed Junco hydrogen stable isotope feather values (δ²H) and implemented a Bayesian framework to infer the breeding and molting origin of migratory juncos captured on their winter grounds in …

Temperature Affects Nest Box Occupancy, Nest Success, And Nestling Size In A Southeastern Population Of Eastern Bluebirds (Sialia Sialis), Christopher G. Horacek

Biology Theses

Given the critical role that temperature plays in avian reproductive biology, rising temperatures as a result of global climate change will likely impact reproductive success of many bird populations. Secondary cavity nesting birds, many of which rely on artificial nest boxes to maintain population levels, may be particularly at risk because increased temperatures inside nest boxes can determine whether nest boxes are selected, reduce nest success, and/or negatively affect the growth and survival of offspring. We examined the effect of nest box color on nest box temperature and the influence of nest box temperature, nest box color, entrance orientation, and …

Urban Nesting Biology, Population Viability And Ecology Of The Willow Flycatcher, Empidonax Traillii, Stephanie Alexandra Byrne Doorly

Dissertations and Theses

Reproductive success, in any species, relies both on the habitat utilized to reproduce and on the successful reproductive output of individual animals within a population. Populations in turn rely on the reproductive fitness of the individual. Whether populations remain stable, grow, or decline ultimately relies on the combined reproductive output of the individuals within that population.

We studied the Willow Flycatcher (Empidonax traillii; henceforth WIFL), a well-studied Neartic-Neotropical migrant passerine whose breeding range extends from the east to west coast of North America. Across much of their range, and in particular in the western regions, breeding population are …