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Articles 1 - 30 of 19037

Full-Text Articles in Ecology and Evolutionary Biology

Patterns And Sources Of Variation In Heterospecific Pollen Deposition In Flowers Of The Native Blue Cardinal Flower (Lobelia Siphilitica), Allie Drinnon May 2023

Patterns And Sources Of Variation In Heterospecific Pollen Deposition In Flowers Of The Native Blue Cardinal Flower (Lobelia Siphilitica), Allie Drinnon

Undergraduate Honors Theses

Plants species interactions via pollinators are a model system to understand the mechanisms that generate plant diversity in nature. However, most studies have focused on plant-plant interactions via pollinator attraction while ignoring the role of plant-plant interactions via pollen transfer. Heterospecific pollen transfer (henceforth HP) can be common and have negative fitness effects. Negative HP fitness effects may prompt the evolution of adaptive strategies to minimize them. However, the extent of spatial variation in HP load size within and among populations, a tenet for natural selection, remains unexplored. Such knowledge would hence constitute a first step in advancing our understanding …


Local And Regional Landscape Characteristics Driving Habitat Selection By Greater Sage-Grouse Along A Fragmented Range Margin, Aidan T. Beers May 2023

Local And Regional Landscape Characteristics Driving Habitat Selection By Greater Sage-Grouse Along A Fragmented Range Margin, Aidan T. Beers

All Graduate Theses and Dissertations

In response to ongoing landscape change, wildlife species are likely to respond in varied ways. By studying habitat specialists, we are able to better understand the most likely ways in which the denizens of threatened ecosystems will react to those changes. Among the most threatened ecosystem types in North America are sagebrush ecosystems of the Intermountain West, where one of its most well-known residents, greater sage grouse (hereafter, “sage-grouse), have lost more than 50% of their habitat due to fire, invasive species, climate change, encroachment by coniferous forests and avian predators using it, and human-caused landscape conversion. Sage-grouse rely on …


Elevated Estuary Water Temperature Drives Fish Gut Dysbiosis And Increased Loads Of Pathogenic Vibrionaceae, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Nachshon Siboni, Nathan L. R. Williams, Justin R. Seymour, Megan J. Huggett Feb 2023

Elevated Estuary Water Temperature Drives Fish Gut Dysbiosis And Increased Loads Of Pathogenic Vibrionaceae, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Nachshon Siboni, Nathan L. R. Williams, Justin R. Seymour, Megan J. Huggett

Research outputs 2022 to 2026

Marine water temperatures are increasing globally, with eastern Australian estuaries warming faster than predicted. There is growing evidence that this rapid warming of coastal waters is increasing the abundance and virulence of pathogenic members of the Vibrionaceae, posing a significant health risk to both humans and aquatic organisms. Fish disease, notably outbreaks of emerging pathogens in response to environmental perturbations such as heatwaves, have been recognised in aquaculture settings. Considerably less is known about how rising sea surface temperatures will impact the microbiology of wild fish populations, particularly those within estuarine systems that are more vulnerable to warming. We used …


New Synonyms And Records Of Costa Rican And Panamanian Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae), Ángel Solis, Bert Kohlmann Feb 2023

New Synonyms And Records Of Costa Rican And Panamanian Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae), Ángel Solis, Bert Kohlmann

Insecta Mundi

To better understand the dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) biodiversity of Costa Rica and Panama, new synonyms, records, distributions, and updates are presented. This paper analyzes the distribution and taxonomy of Phanaeus olsoufieffi Balthasar, 1939 in Panama and establishes the following new subjective synonym: Phanaeus panamensis Moctezuma and Halffter, 2021 = Phanaeus olsoufieffi Balthasar, 1939. Color morphs of Phanaeus pyrois Bates, 1887 in Costa Rica are analyzed. The Costa Rican distribution of Onthophagus bidentatus Drapiez, 1819 and O. marginicollis Harold, 1880 is stud­ied. Onthophagus bidentatus is recorded for Costa Rica for the first time. A population analysis of barcode mtDNA, …


Una Nueva Especie De Alurnus Fabricius De La Costa Pacífica De Colombia Y Apuntes Sobre Su Biología (Coleoptera: Chrysomelidae: Cassidinae), Luis Carlos Pardo-Locarno, Luis Miguel Constantino Feb 2023

Una Nueva Especie De Alurnus Fabricius De La Costa Pacífica De Colombia Y Apuntes Sobre Su Biología (Coleoptera: Chrysomelidae: Cassidinae), Luis Carlos Pardo-Locarno, Luis Miguel Constantino

Insecta Mundi

Resumen. En este trabajo se describe una nueva especie de Alurnus Fabricius (Coleoptera: Chrysomelidae), A. chocoensis Pardo y Constantino, con notable coloración rojo sangre en todo el cuerpo, excepto las hembras que presentan el pronoto de color negro. La nueva especie es una plaga importante del follaje en palma de chontaduro (Bactris gasipaes Kunth) en la costa pacífica de Colombia y es un endemismo propio de las selvas lluviosas de la región biogeografica del Chocó, en el occidente de Colombia. Se presentan apuntes sobre su biología y ecología.

Abstract. In this work, a new species of Alurnus Fabricius (Coleoptera: …


Updated List Of Intercepted Coccidae (Hemiptera: Coccomorpha) At South Korean Ports Of Entry And Potential Invasive Species To South Korea, Soo-Jung Suh Feb 2023

Updated List Of Intercepted Coccidae (Hemiptera: Coccomorpha) At South Korean Ports Of Entry And Potential Invasive Species To South Korea, Soo-Jung Suh

Insecta Mundi

An updated list is given of 25 species of soft scale insects (Hemiptera: Coccidae) which have been intercepted on plants imported into South Korea during the period of 1996 to 2021. Information on the num­ber of interceptions, host plants, distribution and origin of species intercepted at South Korean ports of entry is provided. In addition, data on intercepted species was analyzed to determine potential invasive species of soft scales that could threaten South Korean plants.

Soft scale insects (Hemiptera: Coccomorpha: Coccidae) occur in all zoogeographical regions of the world. The Coccidae is the third largest family of scale insects (Hemiptera: …


Third Contribution To The Knowledge Of Arabian Onthophagini (Coleoptera: Scarabaeidae). Onthophagus Aeneopiceus D’Orbigny, 1902, A New Record For Yemen And For The Palaearctic Ecozone, Stefano Ziani, Denis Keith Feb 2023

Third Contribution To The Knowledge Of Arabian Onthophagini (Coleoptera: Scarabaeidae). Onthophagus Aeneopiceus D’Orbigny, 1902, A New Record For Yemen And For The Palaearctic Ecozone, Stefano Ziani, Denis Keith

Insecta Mundi

Onthophagus aeneopiceus d’Orbigny, 1902 (Coleoptera: Scarabaeidae: Scarabaeinae: Onthophag­ini) is recorded for the first time for Yemen and for the Palaearctic region. An integration into the key to the Onthophagini from the Arabian Peninsula (Ziani et al. 2019), is provided.

After Ziani et al. (2019) and Montanaro and Ziani (2022), 30 Onthophagini species were known from the Arabian Peninsula. In this paper a 31st species is recorded: Onthophagus aeneopiceus d’Orbigny, 1902. The species, belong­ing to the 23rd group of d’Orbigny (1913) and until now known from Eastern Africa and, dubitatively, Ivory Coast (Schoolmeesters 2022), has been collected in Yemen. This is …


The False Click Beetles (Coleoptera: Elateroidea: Eucnemidae) Of The Dominican Republic. Part I: A Look Into The Past, Robert L. Otto Feb 2023

The False Click Beetles (Coleoptera: Elateroidea: Eucnemidae) Of The Dominican Republic. Part I: A Look Into The Past, Robert L. Otto

Insecta Mundi

Thirteen new fossil eucnemid taxa (Coleoptera: Elateroidea) are described from amber deposits excavated from the vicinity of Santiago, Dominican Republic. Two new genera, Mioxylobius and Paleo­quirsfeldia are described. The following 13 new species are described from Dominican amber: Mioxylobius bicolor, Balistica serrulata, Paleoquirsfeldia epicrana, Dyscharachthis dominicana, Idiotarsus poinari, Eurypty­chus antilliensis, Euryptychus hispaniolus, Plesiofornax caribica, Fornax dominicensis, Fornax serropalpoides, Dromaeolus argenteus, Nematodes miocenensis and Nematodes thoracicus. Each new species are both diag­nosed and illustrated. Calyptocerus Guérin-Méneville and Lissantauga Poinar are shown to be congeneic, resulting in a new …


Non-Aggressive Competition Between Males Of Srilankametrus Yaleensis (Kovařík Et Al., 2019) (Scorpionidae), And Other Types Of Agonistic Behavior Observed In Scorpions, Victoria Tang Jan 2023

Non-Aggressive Competition Between Males Of Srilankametrus Yaleensis (Kovařík Et Al., 2019) (Scorpionidae), And Other Types Of Agonistic Behavior Observed In Scorpions, Victoria Tang

Euscorpius

A peculiar intraspecific agonistic behavior involving a non-aggressive physical combat is reported between the adult males of Srilankametrus yaleensis (Kovařík et al., 2019) (Scorpionidae: Heterometrinae). The adult males were observed to resort to a ritualized and relatively gentle way for strength demonstration. The combat is characterized by lateral spreading of pedipalps, chelicerae-to-chelicerae collision, and entanglement of metasomal segments. This behavior is hereby considered a form of an intrasexual combat defined as the “arm-span competition”. It is hypothesized to be beneficial for solving territorial and/ or sexual competitions while avoiding unnecessary mortality which could pose adverse impact to the natural populations. …


A Statistical Analysis Of The Change In Age Distribution Of Spawning Hatchery Salmon, Rachel Macaulay, Emily Barrett, Grace Penunuri, Eli E. Goldwyn Jan 2023

A Statistical Analysis Of The Change In Age Distribution Of Spawning Hatchery Salmon, Rachel Macaulay, Emily Barrett, Grace Penunuri, Eli E. Goldwyn

Spora: A Journal of Biomathematics

Declines in salmon sizes have been reported primarily as a result of younger maturation rates. This change in age distribution poses serious threats to salmon-dependent peoples and ecological systems. We perform a statistical analysis to examine the change in age structure of spawning Alaskan chum salmon Oncorhynchus keta and Chinook salmon O. tshawytscha using 30 years of hatchery data. To highlight the impacts of this change, we investigate the average number of fry/smolt that each age of spawning chum/Chinook salmon produce. Our findings demonstrate an increase in younger hatchery salmon populations returning to spawn, and fewer amounts of fry produced …


Burmese Pythons In Florida: A Synthesis Of Biology, Impacts, And Management Tools, Jacquelyn C. Guzy, Bryan G. Falk, Brian J. Smith, Johnd David Willson, Robert N. Reed, Nicholas G. Aumen, Michael L. Avery, Ian A. Bartoszek, Earl Campbell, Michael S. Cherkiss, Natalie M. Claunch, Andrea F. Currylow, Tylan Dean, Jeremy Dixon, Richard Engeman, Sarah Funck, Rebekah Gibble, Kodiak C. Hengstebeck, John S. Humphrey, Margaret E. Hunter, Jillian M. Josimovich, Jennifer Ketterlin, Michael Kirkland, Frank J. Mazzotti, Robert Mccleery, Melissa A. Miller, Matthew Mccollister, M. Rockwell Parker, Shannon E. Pittman, Michael Rochford, Christina Romagosa, Art Roybal, Ray W. Snow, Mckayla M. Spencer, J. Hardin Waddle, Any A. Yackel Adams, Kristen M. Hart Jan 2023

Burmese Pythons In Florida: A Synthesis Of Biology, Impacts, And Management Tools, Jacquelyn C. Guzy, Bryan G. Falk, Brian J. Smith, Johnd David Willson, Robert N. Reed, Nicholas G. Aumen, Michael L. Avery, Ian A. Bartoszek, Earl Campbell, Michael S. Cherkiss, Natalie M. Claunch, Andrea F. Currylow, Tylan Dean, Jeremy Dixon, Richard Engeman, Sarah Funck, Rebekah Gibble, Kodiak C. Hengstebeck, John S. Humphrey, Margaret E. Hunter, Jillian M. Josimovich, Jennifer Ketterlin, Michael Kirkland, Frank J. Mazzotti, Robert Mccleery, Melissa A. Miller, Matthew Mccollister, M. Rockwell Parker, Shannon E. Pittman, Michael Rochford, Christina Romagosa, Art Roybal, Ray W. Snow, Mckayla M. Spencer, J. Hardin Waddle, Any A. Yackel Adams, Kristen M. Hart

USDA Wildlife Services - Staff Publications

Burmese pythons (Python molurus bivittatus) are native to southeastern Asia, however, there is an established invasive population inhabiting much of southern Florida throughout the Greater Everglades Ecosystem. Pythons have severely impacted native species and ecosystems in Florida and represent one of the most intractable invasive-species management issues across the globe. The difficulty stems from a unique combination of inaccessible habitat and the cryptic and resilient nature of pythons that thrive in the subtropical environment of southern Florida, rendering them extremely challenging to detect. Here we provide a comprehensive review and synthesis of the science relevant to managing invasive …


National Development And The Sustainability Of Mining In The Atacama Desert, Chile, Dakota Soleil Osgood Jan 2023

National Development And The Sustainability Of Mining In The Atacama Desert, Chile, Dakota Soleil Osgood

Capstone Collection

As climate change continues to intensify on a global scale, efforts have been made to implement renewable energies and progressive technologies. These tools are critical in the shift towards a more sustainable practice, and yet analysis of localized impacts from the development of these mechanisms is inadequate. Chile has been and continues to be a leading country in mineral extraction, with an economic history founded in the mining industry. The establishment of mining in Chile as a progressive tool has aided the social and economic development of the nation. Consequences of mining extraction, however, include intensive environmental degradation, human rights …


The Future Of Pandemics: Land Use Controls As Means Of Preventing Zoonotic Disease, Bailey Andree Jan 2023

The Future Of Pandemics: Land Use Controls As Means Of Preventing Zoonotic Disease, Bailey Andree

Pace International Law Review

Zoonotic diseases are increasing in frequency as climate change worsens around the world, with the recent COVID-19 pandemic highlighting the inadequate mechanisms in place to counteract disease spread. This article reviews various zoonotic diseases and their patterns of spread, highlighting land use change as the key driver of disease to demonstrate the need for legal intervention. International land use law is a little-developed subsect of environmental law that holds the key to combating this disease spread, and this article proposes solutions through this legal lens. Land use techniques which may be used to combat disease spread include conservation laws, setback …


Lychas Jakli Sp. N. (Scorpiones: Buthidae) From Indonesia, František Kovařík Jan 2023

Lychas Jakli Sp. N. (Scorpiones: Buthidae) From Indonesia, František Kovařík

Euscorpius

A new species Lychas jakli sp. n. (Scorpiones: Buthidae) is described from Indonesia, fully illustrated with color photos showing its morphology and habitus. A new synonymy is proposed: Lychas kotao Lourenço, 2020 = Lychas mucronatus (Fabricius, 1798), syn. n.


Taxonomic Notes On The Luciolinae (Coleoptera: Lampyridae), Oliver Keller, Lesley Ballantyne Jan 2023

Taxonomic Notes On The Luciolinae (Coleoptera: Lampyridae), Oliver Keller, Lesley Ballantyne

Insecta Mundi

Several nomenclatural changes for taxa in the firefly subfamily Luciolinae (Coleoptera: Lampyri­dae) are proposed. Evidence is presented to correct the year of description for Luciola dregei Motschulsky 1853 to Motschulsky 1854 when the name was ratified. We correct the authorities and years of descriptions for type species designations for the genera Delopleurus Motschulsky, 1853, and Delopyrus Motschulsky, 1853 to Motschulsky 1854 for both. All remaining taxa described as variations in the subfamily Luciolinae by McDermott (1966), are evaluated to subspecies with their availability determined based on ICZN (1999) Article 45.6.


New Host And Distribution Records Plus Additional Notes For North American Species Of Chrysobothris Eschscholtz (Coleoptera: Buprestidae), With Designation Of A Lectotype For Chrysobothris Vulcanica Leconte, 1861, Richard L. Westcott Jan 2023

New Host And Distribution Records Plus Additional Notes For North American Species Of Chrysobothris Eschscholtz (Coleoptera: Buprestidae), With Designation Of A Lectotype For Chrysobothris Vulcanica Leconte, 1861, Richard L. Westcott

Insecta Mundi

New distribution and host records plus additional notes are provided for North American spe­cies in the genus Chrysobothris Eschscholtz (Coleoptera: Buprestidae). Forty-one species are treated. The occurrence of Chrysobothris bicolor Horn in the USA is refuted. Chrysobothris breviloboides Barr is newly synonymized with Chrysobothris breviloba Fall. The southernmost record for Chrysobothris piuta Wick­ham, from Baja California, Mexico, is established. A specimen of the Argentinian Chrysobothris rugosa Gory and Laporte labeled from Florida is reported. A lectotype for Chrysobothris vulcanica LeConte is newly designated.


Thirteen New Species Of Butterflies (Lepidoptera: Hesperiidae) From Texas, Jing Zhang, Qian Cong, Nick V. Grishin Jan 2023

Thirteen New Species Of Butterflies (Lepidoptera: Hesperiidae) From Texas, Jing Zhang, Qian Cong, Nick V. Grishin

Insecta Mundi

Analyses of whole genomic shotgun datasets, COI barcodes, morphology, and historical literature suggest that the following 13 butterfly species from the family Hesperiidae (Lepidoptera: Papilionoidea) in Texas, USA are distinct from their closest named relatives and therefore are described as new (type localities are given in parenthesis): Spicauda atelis Grishin, new species (Hidalgo Co., Mission), Urbanus (Urbanus) rickardi Grishin, new species (Hidalgo Co., nr. Madero), Urbanus (Urbanus) oplerorum Grishin, new spe­cies (Hidalgo Co., Mission/Madero), Telegonus tsongae Grishin, new species (Starr Co., Roma), Autochton caballo Grishin, new species (Hidalgo Co., 6 mi W of Hidalgo), Epargyreus fractigutta …


New Species And Taxonomical And Geographical Notes On Cerambycidae And Disteniidae (Coleoptera: Chrysomeloidea), Daniel Heffern, Juan Pablo Botero, Antonio Santos-Silva Jan 2023

New Species And Taxonomical And Geographical Notes On Cerambycidae And Disteniidae (Coleoptera: Chrysomeloidea), Daniel Heffern, Juan Pablo Botero, Antonio Santos-Silva

Insecta Mundi

Four new species of Coleoptera are described: Pentanodes clavatus new species, from Ecuador; Pentanodes baldwini new species, from Panama (Cerambycidae: Cerambycinae: Tillomorphini); Elytrimita­trix (Grossifemora) dilatata new species, from Mexico (Disteniidae) and Novantinoe falsa new species, from Mexico (Disteniidae). Taxonomical notes on Euderces cribellatus (Bates, 1885) (Tillomorphini) and Oreodera Audinet-Serville, 1835 (Lamiinae: Acrocinini) are provided. Additionally, new records are provided for Oreo­dera noguerai McCarty, 2001 (new state record), Adetus croton Heffern, Santos-Silva and Botero, 2019 (new country record), Icimauna sarauaia Martins and Galileo, 1991 (new country record), and Phoebe mexicana Bates, 1881 (new state record).


A New Species Of Biclonuncaria Razowski And Becker, 1993 (Lepidoptera: Tortricidae: Polyorthini) From Costa Rica, John W. Brown Jan 2023

A New Species Of Biclonuncaria Razowski And Becker, 1993 (Lepidoptera: Tortricidae: Polyorthini) From Costa Rica, John W. Brown

Insecta Mundi

Biclonuncaria recurvana, new species (Lepidoptera: Tortricidae: Polyorthini), is described and il­lustrated from Area de Conservación Guanacaste in northwestern Costa Rica. It is most similar to B. conica Razowski, 1993, from Mexico, but the two are easily distinguished by features of the male genitalia. Biclo­nuncaria recurvana has been reared (n = 12 specimens) from field-collected larvae feeding on the leaves of Dalbergia glomerata Hemsley (Fabaceae), consistent with the previously reported host plant for B. dalbergiae Razowski and Becker, 1993, which has been reared from Dalbergia in Brazil.


A Dynamical System Model Of Dengue Transmission For Rio De Janeiro, Brazil, Gregory Schmidt, Benjamin Whipple, Vinodh Chellamuthu, Xiaoxia Xie Jan 2023

A Dynamical System Model Of Dengue Transmission For Rio De Janeiro, Brazil, Gregory Schmidt, Benjamin Whipple, Vinodh Chellamuthu, Xiaoxia Xie

Spora: A Journal of Biomathematics

The dengue virus is a serious concern in many parts of the world, including Brazil. As data indicates, a prominent vector for dengue is the mosquito Aedes aegypti. By using the dengue incidence records from the Brazilian SINAN database, we estimate the population of A. aegypti within the city of Rio de Janeiro. Using historical climate data for Rio de Janeiro and the computed population estimates, we extend an existing model for the population dynamics of mosquitoes to incorporate precipitation in aquatic stages of development for A. aegypti.


Subgenera Of Dacne Latreille, 1797 (Erotylidae: Erotylinae: Dacnini) Given Full Generic Rank, Paul E. Skelley Jan 2023

Subgenera Of Dacne Latreille, 1797 (Erotylidae: Erotylinae: Dacnini) Given Full Generic Rank, Paul E. Skelley

Insecta Mundi

Previously described subgenera of Dacne Latreille, 1797 (Coleoptera: Erotylidae) show charac­ter states and combinations implying closer relationships with genera other than with Dacne, suggesting “Dacne” is not monophyletic. These characters are briefly discussed along with the genera sharing the charac­ters. To improve the current classification, the subgenera of Dacne are raised to generic status as: Afrodacne Delkeskamp, 1954, Ameridacne Skelley, 2009, and Xenodacne Boyle, 1956. A checklist of all species included in these genera is presented, updating generic combinations as needed.


Still A Private Universe? Community College Students’ Understanding Of Evolution, Meredith A. Dorner, Philip Sadler, Brian Alters Jan 2023

Still A Private Universe? Community College Students’ Understanding Of Evolution, Meredith A. Dorner, Philip Sadler, Brian Alters

Education Faculty Articles and Research

Background

Measuring what students know and retain about evolution is essential to improving our understanding of how students learn evolution. The literature shows that college students appear to have a poor understanding of evolution, answering questions on various instruments correctly only about half of the time. There is little research regarding evolution understanding among community college students and so this study examines if those students who are enrolled in life science classes, who are assessed using questions based on grade eight standards, show a better understanding of evolutionary principles than younger students and if there are differences in knowledge based …


Orb-Web Spider Argiope (Araneidae) As Indigenous Arrow Poison Of G/Ui And G//Ana San Hunters In The Kalahari, Tharina L. Bird, Smith Moeti, Robert K. Hitchcock, Melinda C. Kelly, Lefang L. Chobolo, Nonofo Gotcha, Kgosi K. Moatlhodi, Leungo D. Mukoka, Emmanuel K. Sekopo, Caroline Simmrita Chaboo Jan 2023

Orb-Web Spider Argiope (Araneidae) As Indigenous Arrow Poison Of G/Ui And G//Ana San Hunters In The Kalahari, Tharina L. Bird, Smith Moeti, Robert K. Hitchcock, Melinda C. Kelly, Lefang L. Chobolo, Nonofo Gotcha, Kgosi K. Moatlhodi, Leungo D. Mukoka, Emmanuel K. Sekopo, Caroline Simmrita Chaboo

Publications of UNSM Staff and Affiliates

Hunting has been crucial in early human evolution. Some San (Bushmen) of southern Africa still practice their indigenous hunting. The use of poisons is one remarkable aspect of their bow-and-arrow hunting but the sources, taxonomic identifications of species used, and recipes, are not well documented. This study reports on fieldwork to investigate recent indigenous hunting practices of G/ui and G//ana San communities in the Central Kalahari Game Reserve (CKGR), Botswana. Here we discuss their use of spider poison. The hunters use the contents of the opisthosoma (‘abdomen’) of a spider as sole ingredient of the arrow poison and discard the …


Range-Wide Sources Of Variation In Reproductive Rates Of Northern Spotted Owls, Jeremy T. Rockweit, Julianna M. Jenkins, James E. Hines, James D. Nichols, Katie M. Dugger, Alan B. Franklin, Peter C. Carlson, William L. Kendall, Damon B. Lesmeister, Christopher Mccafferty, Steven H. Ackers, L. Steven Andrews, Larissa L. Bailey, Jesse Burgher, Kenneth P. Burnham, Tara Chestnut, Mary M. Conner, Raymond J. Davis, Krista E. Dilione, Eric D. Forsman, Elizabeth M. Glenn, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, David W. Lamphear, Trent L. Mcdonald, Janice A. Reid, Carl J. Schwarz, David C. Simon, Stan G. Sovern, James K. Swingle, J. David Wiens, Heather Wise, Charles B. Yackulic Jan 2023

Range-Wide Sources Of Variation In Reproductive Rates Of Northern Spotted Owls, Jeremy T. Rockweit, Julianna M. Jenkins, James E. Hines, James D. Nichols, Katie M. Dugger, Alan B. Franklin, Peter C. Carlson, William L. Kendall, Damon B. Lesmeister, Christopher Mccafferty, Steven H. Ackers, L. Steven Andrews, Larissa L. Bailey, Jesse Burgher, Kenneth P. Burnham, Tara Chestnut, Mary M. Conner, Raymond J. Davis, Krista E. Dilione, Eric D. Forsman, Elizabeth M. Glenn, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, David W. Lamphear, Trent L. Mcdonald, Janice A. Reid, Carl J. Schwarz, David C. Simon, Stan G. Sovern, James K. Swingle, J. David Wiens, Heather Wise, Charles B. Yackulic

USDA Wildlife Services - Staff Publications

We conducted a range-wide investigation of the dynamics of site-level reproductive rate of northern spotted owls using survey data from 11 study areas across the subspecies geographic range collected during 1993–2018. Our analytical approach accounted for imperfect detection of owl pairs and misclassification of successful reproduction (i.e., at least one young fledged) and contributed further insights into northern spotted owl population ecology and dynamics. Both nondetection and state misclassification were important, especially because factors affecting these sources of error also affected focal ecological parameters. Annual probabilities of site occupancy were greatest at sites with successful reproduction in the previous year …


Movements And Resource Selection Of Wild Pigs Associated With Growth Stages Of Corn, Bethany A. Friesenhahn, Randall W. Deyoung, Michael J. Cherry, Humberto L. Perotto-Baldivieso, Kurt C. Vercauteren, Nathan P. Snow Jan 2023

Movements And Resource Selection Of Wild Pigs Associated With Growth Stages Of Corn, Bethany A. Friesenhahn, Randall W. Deyoung, Michael J. Cherry, Humberto L. Perotto-Baldivieso, Kurt C. Vercauteren, Nathan P. Snow

USDA Wildlife Services - Staff Publications

Wild pigs (Sus scrofa) are one of the most successful invasive species globally and are often implicated in agricultural damage. This damage is expected to increase as ranges of wild pigs expand, impacting the human food supply and increasing costs of food production. Our objective was to evaluate movement behaviors of wild pigs relative to resource availability and landscape features in an agriculture-dominated landscape, with a goal of informing management practices for reducing damage to corn. We monitored hourly movements of adult wild pigs relative to corn crops using GPS collars during the 2019 and 2020 growing seasons (Feb–Sept) in …


Assessment Of Living Shorelines For Restoring Fish Habitats: A Case Study From Coastal Alabama, Claire Legaspi, Matheus De Barros, Alexandra Rodriguez, Ronald Baker Jan 2023

Assessment Of Living Shorelines For Restoring Fish Habitats: A Case Study From Coastal Alabama, Claire Legaspi, Matheus De Barros, Alexandra Rodriguez, Ronald Baker

Gulf and Caribbean Research

No abstract provided.


Potential Effects Of Road Proximity On Zooplankton Communities And Water Quality In Lakes In The Northwest Territories, Marie N. Hannan Jan 2023

Potential Effects Of Road Proximity On Zooplankton Communities And Water Quality In Lakes In The Northwest Territories, Marie N. Hannan

Theses and Dissertations (Comprehensive)

Studies conducted along Canada’s Dempster Highway in the Northwest Territories have shown that road dust can affect water quality in roadside lakes, leading to higher calcium, conductivity, and pH levels. These water quality changes have the potential to affect important members of the lower aquatic food web, such as zooplankton.

For my thesis research, I had two main objectives: 1) To determine if changes in water chemistry caused by deposition of road dust affects zooplankton communities; and 2) To examine if the type of roadside vegetation influences the effects of road dust on aquatic habitats. To achieve these objectives, I …


Attack Of The Clones: Elucidating The Role Of Clonality In The Invasion Success Of Carpobrotus Edulis, Eduardo Luis Cruz Jan 2023

Attack Of The Clones: Elucidating The Role Of Clonality In The Invasion Success Of Carpobrotus Edulis, Eduardo Luis Cruz

Electronic Theses, Projects, and Dissertations

Transcriptomics is a modern technique in genomics that utilizes RNA sequences to get a snapshot of genetic expression. This is a powerful tool in non-model species lacking a reference genome. Thus, the application of comparative transcriptomics has the potential to help us elucidate the evolutionary mechanisms that facilitate species invasion. Carpobrotus edulis is a prolific and widespread invasive succulent plant belonging to the Aizoaceae family. A native to South Africa, this species has become a dominant invader of many Mediterranean coastal areas. In this study, we leveraged the use of RNAseq to investigate evolutionary changes among invasive populations. RNA-seq data …


Remember Your Roots: Biogeographic Properties Of Plants' Native Habitats Can Inform Invasive Plant Risk Assessments, William Pfadenhauer, Michael Nelson, Britt Laginhas, Bethany Bradley Jan 2023

Remember Your Roots: Biogeographic Properties Of Plants' Native Habitats Can Inform Invasive Plant Risk Assessments, William Pfadenhauer, Michael Nelson, Britt Laginhas, Bethany Bradley

Organismic and Evolutionary Biology Graduate Student Publication Series

Aim: Reducing the effects of invasive plants is best accomplished by predicting which species will invade and preventing their introduction. To do this, risk assessments rely on a variety of plant traits and biogeographic properties to predict potential invasiveness. However, the relative importance of these traits and properties is unknown. Determining which biogeographic properties contribute the most to predicting invasiveness could improve the accuracy and reduce the time needed to complete future risk assessments. Here, we provide a comprehensive analysis and ranking of the biogeographic properties that best differentiate invasive and noninvasive plant species.

Location: Conterminous United States.

Methods: We …


Investigating The Effects Of Disturbance And Competition On Establishment, Growth, And Reproduction Of The Endangered Ripariosida Hermaphrodita, Daniel Engelking Jan 2023

Investigating The Effects Of Disturbance And Competition On Establishment, Growth, And Reproduction Of The Endangered Ripariosida Hermaphrodita, Daniel Engelking

Theses and Dissertations (Comprehensive)

Ripariosida hermaphrodita (Virginia Mallow) is a perennial riparian plant with broad, maple-like leaves. It grows up to three meters high and is often found in large clonal patches, but sexually reproduces readily. While this plant may seem like a redoubtable competitor when growing in large colonies, it is declining across its range in North America. The only known occurrences in Canada are in southern Ontario. Prior to this study, no new populations had been recorded even though one of the known populations produces copious amounts of viable seed with potential to disperse. There are many hypotheses for its rarity, but …