Population Biology Commons^™

Analyzing The Effect Of A Holling Type Iii Functional Response On Predator-Prey Dynamics, Lawrence G. Seminario-Romero, Richard Rebarber, Brigitte Tenhumberg

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Metapopulation Model For Oyster Restoration, Leah Shaw

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

[Chu] Modelling The Effect Of Disturbed Blood-Feeding On Mosquito-Borne Disease Transmission, Kyle Dahlin, Michael Robert, Lauren Childs

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Understanding The Spread Of Black Sigatoka Disease: A Deterministic And Stochastic Modeling Approach, Bernard Asamoah Afful, Luis F. Gordillo

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

A Compartmental Model For Diurnal Atlantic Stingray Migration, Rhianna Yates, Leah Glasser, Elena Wheatley, Christopher Hay-Jahans

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

A Compartmental Model For Periodic Animal Migration, Rhianna Yates, Leah Glasser, Elena Wheatley, Christopher Hay-Jahans

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

A Compartmental Model For Annual Blue Whale Migration, Leah Glasser, Christopher Hay-Jahans, Elena Wheatley, Rhianna Yates

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

Optimizing The Distribution Of Fruiting Agave On Bat-Friendly Tequila Plantations, Grace Gorreck, Clarissa Azurin, Lois Carpenter

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.

New Butterfly Taxa And Findings From Genomic Analyses, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin

The Taxonomic Report of the International Lepidoptera Survey

Continuing our genomics-driven exploration of butterfly taxonomy, we integrate phylogenetic trees from all protein-coding genes with existing taxonomic and phenotypic knowledge and uncover further insights into butterfly systematics. As a result, one subgenus, 44 species, and 11 subspecies are proposed as new (type species in original combinations or type localities are listed in parentheses): Porphaurea Grishin, subgen. n. (Phoenicops porphyropis Meyrick & Lower, 1902) of Chaetocneme C. Felder, 1860 in Hesperiidae Latreille, 1809; Dione (Agraulis) lamasi Grishin, sp. n. (Peru: Cuzco) in Nymphalidae Rafinesque, 1815; Lasaia (Lasaia) chiapis Grishin, sp. n. (Mexico: Chiapas), Lasaia …

The Micro-Communities Of Trees, Nicholas Davis, Lily Boysworth, Westen Wilburn

Fall Showcase for Research and Creative Inquiry

This study investigated how tree species diversity influences the variety of organisms living on or around trees across different habitat types. Field data were collected through random tree selection, measurement of tree diameter, identification of species, and estimation of surrounding ground cover types such as grass, herbaceous plants, woody plants, and leaf litter. Biodiversity associated with each tree was analyzed using the Shannon Diversity Index across several ecosystems, including grassland, woodland, and pond environments. Results indicated that the pond ecosystem exhibited the highest species diversity, followed by woodlands and then forests. A range of organisms, including lichens, mites, fungi, and …

Dynamics And Optimal Intervention Strategies In A Shigellosis Transmission Model, Mehmet Gümüs, Shewafera Wondimagegnhu Teklu, Kemal Türk

Mathematical Modelling and Numerical Simulation with Applications

This research explores how water treatment contributes to limiting the transmission of Shigellosis, an infection caused by bacteria from the Shigella genus. A mathematical framework is formulated to evaluate the influence of protective strategies and water purification on the spread of the disease. To confirm the model's biological relevance, its well-posedness is investigated. The basic reproduction number $(\mathfrak{R}_0)$, a critical indicator of disease behavior, is derived using the matrix operator method. Findings indicate that if $\mathfrak{R}_01$, the infection persists, with the endemic equilibrium exhibiting local asymptotic stability. A comprehensive cost-effectiveness analysis reveals that combining environmental protection with water treatment represents …

A Previously Unrecognized Species Of Celastrina From The Southeastern Coastal Plain Region Of The United States (Lycaenidae: Polyommatinae) Named In Honor Of The Memory Of Iryna Zarutska, Harry Pavulaan

The Taxonomic Report of the International Lepidoptera Survey

New species Celastrina iryna is described from the southeastern coastal plain of the United States. This species is most similar to C. neglecta but differs by possession of the unique dorsal overlay of clear wing scales found in C. ladon males. It is hypothesized that this may be a hybrid species. Some aspects of its life history remain unknown and call for further field research. The species name is a tribute to Iryna Zarutska, of Charlotte, North Carolina.

The Official List Of The Birds Of Nebraska: 2024, Mark A. Brogie

Nebraska Bird Review

The duties of the Nebraska Ornithologists’ Union Records Committee (NOURC 2010) include:

A. The committee shall publish an official list of the birds of Nebraska.
B. The official list will include all those species whose occurrence has been reported in Nebraska (and approved by the NOURC).
C. The committee shall keep the official list current.
D. The committee shall publish a list of species for which details are requested with every sighting reported.

The 2024 NOURC has completed the above-described duties, and the following is a result of its endeavors.

The “Official List of the Birds of Nebraska” was last …

First Confirmed Nebraska Breeding Record Of The Common Raven (Corvus Corax) Since The 19th Century, Eugene A. Huryn, Jacob C. Cooper

Nebraska Bird Review

In Nebraska, the Common Raven was likely widespread prior to 1900, being codistributed with the American Bison (Bison bison). Records in this time are spotty, but consistent. Thomas Say reported a nearly fledged brood—the only confirmed breeding record in this period—at Fort Calhoun in Washington County on May 12, 1820. A Common Raven was collected at Fort Randall, on the Missouri River just north of the modern Nebraska–South Dakota border, in the fall of 1857 during the Lieutenant Warren Expeditions. Another specimen, now lost, was collected by J. B. Hasty in 1899 in Arapahoe, Furnas County. Bruner et …

Summer Field Report, June–July 2025, W. Ross Silcock

Nebraska Bird Review

I have mentioned previously the breeding categories that are available to observers in eBird checklists. This database is becoming more comprehensive and useful, and I encourage observers to use this eBird feature.

Usefulness of Merlin-derived checklists continues to be an issue. As an example, Merlin seems to love White-winged Doves; there were 52 undocumented Merlin reports of this species this summer, no doubt some correctly identified and acceptable if observers had taken a minute to add even minimal observation details to support Merlin’s identifications.

A vexing issue for me is determining the status of midsummer (i.e. between spring and fall …

The Nebraska Bird Review (September 2025) 93(3), Whole Issue

Nebraska Bird Review

Summer Field Report, June–July 2025, by W. Ross Silcock

First Confirmed Nebraska Breeding Record of the Common Raven (Corvus corax) since the 19th Century, by Eugene A. Huryn and Jacob C. Cooper

2024 (36th) Report of the NOU Records Committee, by Mark A. Brogie

The Official List of the Birds of Nebraska: 2024, compiled by Mark A. Brogie

Subscription and Organization Information

2024 (36th) Report Of The Nou Records Committee, Mark A. Brogie

Nebraska Bird Review

The functions and methods of the Nebraska Ornithologists’ Union Records Committee (NOURC) are described in its bylaws (NOURC 2010). The committee’s purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. Species for which the NOURC seeks documentation (NOURC Review List) can be found at the NOU website: www.NOUbirds.org.

Starting in 2020, the NOURC decided to deal mainly with those species deemed as Accidental on the “Official List of the Birds of Nebraska.” Casual species and out-of- range species are now summarized in the “Seasonal Reports” of the …

Exploring The Role Of Ecological Traits In Shaping Spatial Patterns Of Genetic Diversity, Rilquer Mascarenhas Da Silva

Dissertations, Theses, and Capstone Projects

The field of comparative phylogeography aims at uncovering common underlying causes for shared patterns of diversity and diversification at the population level. However, it is now widely accepted that intraspecific genetic diversity patterns can differ considerably across co-occurring taxa due to ecological processes acting at the population level (and influencing individual movement and abundance). To model the processes underlying lineage diversification and demographic shifts in response to environmental changes, phylogeographers and population geneticists are now faced with the challenge of incorporating measurements of species ecological traits into their molecular studies. This dissertation aimed at investigating how different types of ecological …

Montserrat Developments Impacting Local Coral Reefs, Emma I. Bartholomew

2025 Symposium

Montserrat is a small island in the Caribbean, and over half of the island is in the exclusion zone because of the active volcano, Soufrière Hills. In that half was the old capital, Plymouth, which has since been abandoned, and its old port. The old port was getting less reliable and accessible, so they decided to build a new port in Little Bay, closer to the seat of government in Brades. This study explored how the addition of the new port impacted the corals in that area. We explored several different bays and recorded the diversity and health of the …

Linked Lives In The Riverbed: Integrating Fish Host Dynamics, Community Structure, And Demography For Freshwater Mussel Conservation., Jonathan Patrick Frommeyer

Electronic Theses and Dissertations

Freshwater mussels are long-lived benthic invertebrates that play key roles in nutrient cycling, water filtration, and habitat stability in rivers and streams. Despite their ecological importance, they are among the most imperiled faunal groups in North America, with their persistence increasingly threatened by environmental degradation and disruptions to host–parasite dynamics. This dissertation integrates host ecology, community structure, and demographic modeling to assess population viability and guide conservation priorities for mussel species in Kentucky river systems. The first chapter introduces the ecological context and conservation urgency surrounding freshwater mussels. In particular, emphasizing the need for multi-scale approaches to understand how parasitic …