Digital Commons Network^™

How Resort Owners And Customers Perceive Ecosystems To Be Affected By Changes In Water Level Regulation In Voyageurs National Park, Lauren M. Meckle

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.

Riqueza De Helmintos Parásitos De Vertebrados Silvestres Del Estado De Hidalgo, México, Jorge Falcón-Ordaz, Scott Monks, Griselda Pulido-Flores, Luis García-Prieto, Georgina Lira-Guerrero

Estudios en Biodiversidad

La diversidad de helmintos parásitos de vertebrados del estado de Hidalgo, en México es poco conocida, a pesar de que su estudio se inició desde 1937. Asimismo, mucha de la información generada se ha publicado de manera dispersa, lo que dificulta aún más el establecer con precisión los valores actuales. Por ello, el objetivo de este trabajo fue determinar la riqueza de la fauna helmintológica asociada a vertebrados silvestres de Hidalgo. Para alcanzar dicho objetivo, se realizaron tres acciones: 1) recopilación bibliográfica retrospectiva de información; 2) consulta al acervo de diversas colecciones científicas nacionales e internacionales, e 3) incorporación de …

Calidad Del Agua En La Subcuenca Fluvial La Garita, Acapulco, Guerrero Por Monitoreo Con Insectos, Ana Yolanda Rosas-Acevedo, Audel Sánchez-Infante, José Luis Rosas-Acevedo

Estudios en Biodiversidad

La subcuenca La Garita (Región Hidrológica: Rh19Ac) ha sufrido la influencia del hombre, presenta escorrentía y momentos de estiaje, además de puntos aislados de contaminación por basura y descargas. Se realizó un monitoreo de insectos. Se exploró la posibilidad del uso del índice BMWP (Biological Monitoring Working Party), para arroyos y ríos, en la determinación de la calidad del agua y del ecosistema. En la parte alta o cabecera (BMWP=122) correspondió a excelente (ecosistema no impactado), en la zona media o de transferencia (BMWP-CR=118) fue buena (ecosistema no alterado de manera sensible) y en la parte baja o zona de …

Problemática De Contaminación En La Zona Agrícola De La Reserva De La Biosfera Barranca De Metztitlán, Hidalgo, México, Maritza López-Herrera, Leticia Romero-Bautista, Nahara Ayala-Sánchez, Irma E. Soria-Mercado, Amelia Portillo-López

Estudios en Biodiversidad

El presente trabajo se generó con el objetivo de dar a conocer la problemática que existe actualmente en una zona agrícola de gran importancia en el estado de Hidalgo, la “Vega de Metztitlán”, zona que forma parte de la Reserva de la Biosfera Barranca de Metztitlán, sitio declarado como reserva federal. El aporte de agua residual que se hace a través de los acuíferos que irrigan a la zona, ha generado que este sitio se vea expuesto a un gran riesgo de contaminación por metales pesados, hidrocarburos y demás contaminantes, los cuáles quedan biodisponibles para las plantas e indirectamente existe …

Los Hongos Poliporoides De La Subcuenca Del Río Metztitlán, Hidalgo, México, Leticia Romero-Bautista, Miguel Ángel Islas-Santillán, Maritza López-Herrera, Nahara Ayala-Sánchez, Irma Estela Soria-Mercado, Amelia Portillo-López, Tania Raymundo-Ojeda, Ricardo Valenzuela-Garza

Estudios en Biodiversidad

Los hongos poliporoides son excelentes descomponedores de la madera, aunque también hay ectomicorrizógenos; su importancia ecológica radica en que ayudan a mantener el equilibrio del ciclo del carbono en la naturaleza. Además presentan potencial biotecnológico dadas sus características nutrimentales, medicinales y degradadoras, por su capacidad de producir metabolitos secundarios y ser potencialmente cultivables. Se analiza la importancia del impacto ambiental en los ecosistemas de la subcuenca del río Metztitlán y la diversidad de este grupo de hongos asociados a ellos. Se revisaron ejemplares de herbario y se realizaron exploraciones micológicas en 13 comunidades vegetales de 11 municipios, y 37 localidades …

Traditional Medicine Usage And The Transmission Of Traditional Ecological Knowledge In Three Villages Near Phnom Kulen National Park, Kayla N. Deur

Environmental Studies / Environmental Science Student Scholarship

Traditional ecological knowledge refers to knowledge regarding the relationships between humans and the natural environment. This knowledge and skill set is acquired by local and indigenous peoples through generations of direct contact with the environment, and is often shared in an intergenerational pattern of verbal retelling and instruction. Traditional medicine is one component of traditional ecological knowledge, and this paper outlines the investigation of traditional medicine usage and the transmission of such knowledge in three villages near Phnom Kulen National Park in Siem Reap, Cambodia. The study was conducted through semi-structured interviews at homes that were both randomly and purposively …

Morphology And Niche Partitioning Of Fish Assemblage In The Tonle Sap Biosphere Reserve - A Case Study Of The Prek Toal Core Area, Lan Thi Ngoc Nguyen

Environmental Studies / Environmental Science Student Scholarship

A morphological approach provides vital information on community structure and ecological adjustments among different species that occupy in the same habitat. The coexistence of competing species in a diverse community results in niche partitioning in order to increase stabilization. Tonle Sap Biosphere Reserve, one of the world’s most productive inland wetlands is a tropical river ecosystem so dynamic that supports high biodiversity, especially fish population. This study tests the relationship between morphology and niche partitioning to understand the coexistence of diverse fish assemblages in the Tonle Sap Biosphere Reserve. By measuring 31 morphological variables and gathering ecological data of the …

Physical And Biological Effects Of Modified Polysorbate 20, Kevin Penfield, Bryan Young, Julie K. Young, Greg R. Kruger, Ryan Henry, Greg Lindner

West Central Research and Extension Center, North Platte

Three experimental polyoxyethylene sorbitan monolaurate derivatives were synthesized with molecular fingerprinting techniques applied to experimental materials, confirming the target compounds had been produced. Chemical property measurements were compiled that aligned with theoretical predictions and physical property measurements confirmed their intentional differences yielded the anticipated changes in surfactant behavior. Imidacloprid uptake data confirmed penetration of leaf cuticles was enhanced in the presence of polyoxyethylene sorbitan monolaurates with several experimental materials providing uptake equivalent to reference material. Select materials were included in field and greenhouse trials where observations included good biological response with a range of individual herbicides as well as improved …

Corn Residue Stocking Rate Affects Cattle Performance But Not Subsequent Grain Yield, L. A. Stalker, Humberto Blanco-Canqui, Jennifer A. Gigax, A. L. Mcgee, T. M. Shaver, S. J. Van Donk

West Central Research and Extension Center, North Platte

This study investigated effects of stocking rate on cattle performance, quality and quantity of corn residue, and impact of residue removal on grain yield for 5 yr at the University of Nebraska – Lincoln West Central Water Resources Field Laboratory near Brule, NE. Four removal treatments—1) no removal (control), 2) grazing at 2.5 animal unit month (AUM)/ ha, 3) grazing at 5.0 AUM/ha, and 4) baling—were applied to a center pivot–irrigated corn field (53 ha). The field was divided into eight 6.6-ha paddocks to which replicated treatments were assigned. Samples of residue were collected in October and March (before and …

Abiotic Habitat Preferences Of Age-0 Paddlefish In Lake Sakakawea, North Dakota During Late Summer, Derek Dufault

Journal of Earth and Life Science

Since the early 1990’s, surface visual counts along transects have been conducted annually, allowing for estimates of relative abundance and year-class strength of age-0 paddlefish Polyodon spathula on the upper portions of Lake Sakakawea, North Dakota. This study focuses on the annual visual surface count data collected over an eleven year period from 2004-2014. More specifically it focuses on abiotic habitat factors (Secchi depth, water depth, and water temperature) and how they relate to age-0 paddlefish locations in late summer. Understanding habitat use during early life stages is imperative, yet to date, there is very limited knowledge available regarding the …

Influence Of Depth And Retrieval Speed On Yellow Perch Barotrauma Recovery Time In Winter, Bradley J. Klingsheim

Journal of Earth and Life Science

Physoclistous fish are often affected by barotrauma because the swim bladder is not connected to the esophagus. Barotrauma is increasingly being used in assessing mortality in fish brought from deep water. Barotrauma is the physical damage that occurs because of the over inflation of the gas bladder resulting from a rapid decrease in ambient pressure. The two important factors influencing barotrauma effects are water depth and decompression. In this study, two experiments were conducted on yellow perch (Perca flavescens) at three depth locations on Grace Lake, Bemidji, Minnesota. Fish were measured for barotrauma recovery time (s) following capture by hook …

Further Description Of Hybridization In The Sea Stars Asterias Rubens And Asterias Forbesi Through The Application Of Species-Specific Genetic Markers, Callie Bateson

Honors Program Theses

Hybridization occurs when two separate species reproduce to form hybrid offspring. If the hybrid offspring backcross with individuals of their parental species, the subsequent offspring may have varying amounts of the parental genomes, if viable. Following the retreat of the Last Glacial Maxima 20,000 years ago, two sea star species, Asterias forbesi and A. rubens came into secondary contact in the Gulf of Maine where they began to hybridize. Previous research in our lab studied the frequency of hybridization at four locations along the east coast (Quebec, Nova Scotia, New Hampshire, and New York) using morphological identifications as well two …

Indicadores Bióticos De Calidad Ambiental Del Sur Del Estado De Tamaulipas, México. Caso De Estudio: Aves, René Bernardo Elías Cabrera-Cruz, Marco Antonio González-González, Julio César Rolón-Aguilar, Juan Carlos Gaytán-Oyarzún

Estudios en Biodiversidad

Este trabajo plantea una evaluación de prioridad biológica para la conservación de aves en la región sur de Tamaulipas, México. La metodología empleada fue la técnica Evaluación Rápida de Prioridad Biológica (ERPBIO). Esta permite determinar las principales zonas y grupos a conservar en flora y fauna para amplias zonas de estudio de manera rápida y precisa. La región sur de Tamaulipas comprende los municipios de Aldama, Altamira, Ciudad Madero, González y Tampico, con una superficie total de 8,969.05 km2. Dentro de los resultados obtenidos se elaboró una base de datos por municipio, encontrando una amplia cantidad de estudios con un …

La Biodiversidad De Los Hongos Ectomicorrízicos Y Su Importancia Para La Conservación Del Bosque En La Zona Poblana Del Parque Nacional Malintzi, Marco Antonio Marín-Castro, Virginia Silva-Díaz, Gladys Linares-Fleites, Ana María Castagnino, José Antonio Ticante-Roldán

Estudios en Biodiversidad

El Parque Nacional Malintzi comprende una superficie de 45,852 hectáreas, de las cuales corresponden 14,544 al estado de Puebla. El deterioro a su riqueza forestal tiene sus inicios desde la época colonial y hasta nuestros días la presión sobre los recursos de este parque nacional aumenta debido a que los pobladores de la zona, tradicionalmente ven en la montaña su fuente de sustento mediante la agricultura y la extracción de madera, que aunadas a la tala clandestina inmoderada, han influido drásticamente en la pérdida de biodiversidad y cambio de uso del suelo. Los objetivos de este trabajo fueron describir la …

Los Hongos Agaricales De Las Áreas De Encino Del Estado De Baja California, México, Nahara Ayala-Sánchez, Irma E. Soria-Mercado, Leticia Romero-Bautista, Maritza López-Herrera, Roxana Rico-Mora, Amelia Portillo-López

Estudios en Biodiversidad

Se realizó una recopilación de las especies de hongos del orden Agaricales (regionalmente conocido como “agaricoides”) de los bosques Quercus spp. de la península de Baja California (México), con la pretensión de contar con un panorama de la diversidad de este grupo taxonómico en el área, su distribución y dinámica dentro de estos ecosistemas y el papel ecológico de cada una de las especies citadas. Para la realización del presente estudio se reunió la información obtenida de las especies recolectadas de las diferentes localidades de las áreas de encino del estado de Baja California desde 1996 hasta el presente, ejemplares …

Los Agaves Mezcaleros Del Altiplano Potosino Y Zacatecano, Edgar León Esparza-Ibarra, Juan Violante-González, Scott Monks, Jorge Cadena Iñiguez, Cuauhtémoc Araujo-Andrade, Erich Dietmar Rössel-Kipping

Estudios en Biodiversidad

En el Altiplano Potosino y Zacatecano, los agaves mezcaleros son un componente socioeconómico importante ya que se pueden aprovechar desde el punto de vista económico, ya que tiene valor en el mercado para la producción de bebidas espirituosas como el mezcal; social, ya que su producción y modo de empleo genera jornales disminuyendo la migración; en la salud, por la producción de aguamiel, jarabes e inulinas como complemento nutricional; científico, por los aportes al conocimiento en la variación biológica de los agaves; debido a la diversidad y su plasticidad para enfrentar temperaturas extremas y sequías prolongadas, entre otros. Es por …

El Arbolado De Los Espacios Públicos Abiertos De La Zona De Monumentos Del Centro Histórico De La Ciudad De Puebla, Víctor Gutiérrez-Pacheco, Sonia Emilia Silva-Gómez, José Silvestre Toxtle-Tlamani, J. Santos Hernández-Zepeda

Estudios en Biodiversidad

Los conglomerados humanos, presentan espacios públicos abiertos (EPA´s), sobre todo arbolados, con funciones estéticas, sociales y ambientales. Se requiere información e indicadores con un enfoque ecológico, para que su atención descanse sobre una planeación documentada. Así, se pretende conocer la composición arbórea, su distribución y la biodiversidad en los Espacios Públicos Abiertos (EPA´s) de la Zona de Monumentos del Centro Histórico de la Ciudad de Puebla (ZMCHP). Por tanto, se contaron los especímenes, se ubicaron en los EPA´s y se identificaron. Para determinar la biodiversidad se aplicó el Índice de Diversidad de Shannon-Wiener (H´). En 25 EPA´s, se censaron 1,120 …

Influence Of Sediment Characteristics On The Composition Of Soft-Sediment Intertidal Communities In The Northern Gulf Of Mexico, Kyle E. Coblentz, Jessica R. Henkel, Bryan J. Siegel, Caz M. Taylor

Papers in Ecology

Benthic infaunal communities are important components of coastal ecosystems. Understanding the relationships between the structure of these communities and characteristics of the habitat in which they live is becoming progressively more important as coastal systems face increasing stress from anthropogenic impacts and changes in climate. To examine how sediment characteristics and infaunal community composition were related along the northern Gulf of Mexico coast, we sampled intertidal infaunal communities at seven sites covering common habitat types at a regional scale. Across 69 samples, the communities clustered into four distinct groups on the basis of faunal composition. Nearly 70% of the variation …

Belowground Bud Bank Of Bromus Inermis In Response To Mowing Frequency Over Two Growing Seasons, Denise Olson, Lan Xu, Arvid Boe, N. H. Troelstrup Jr.

Native Plant Focused Publications

Smooth bromegrass (Bromus inermis) is a Eurasian C3 perennial grass. It was introduced to North America in 1884 to control soil erosion and for pasture improvement, but has been outcompeting the native grasses of the northern Great Plains, decreasing diversity and altering habitats. Control of smooth bromegrass is a key to improve degraded native dominated grasslands. However, current practices have minimal or only short term effects due to extensive rhizome and tiller production by bromegrass. Even though vegetative reproduction via the belowground bud bank is the primary means for its invasiveness and persistence, the effect of management on its bud …

Comparative Proteomics Of Mouse Tears And Saliva: Evidence From Large Protein Families For Functional Adaptation, Robert C. Karn, Christina M. Laukaitis

Scholarship and Professional Work - LAS

We produced a tear proteome of the genome mouse, C57BL/6, that contained 139 different protein identifications: 110 from a two-dimensional (2D) gel with subsequent trypsin digestion, 19 from a one-dimensional (1D) gel with subsequent trypsin digestion and ten from a 1D gel with subsequent Asp-N digestion. We compared this tear proteome with a C57BL/6 mouse saliva proteome produced previously. Sixteen of the 139 tear proteins are shared between the two proteomes, including six proteins that combat microbial growth. Among the 123 other tear proteins, were members of four large protein families that have no counterparts in humans: Androgen-binding proteins (ABPs) …

Lichen Monitoring Delineates Biodiversity On A Great Barrier Reef Coral Cay, Paul C. Rogers, Roderick W. Rogers, Anne Hedrich, Patrick T. Moss

Wildland Resources Faculty Publications

Coral islands around the world are threatened by changing climates. Rising seas, drought, and increased tropical storms are already impacting island ecosystems. We aim to better understand lichen community ecology of coral island forests. We used an epiphytic lichen community survey to gauge Pisonia (Pisonia grandis R.BR.), which dominates forest conditions on Heron Island, Australia. Nine survey plots were sampled for lichen species presence and abundance, all tree diameters and species, GPS location, distance to forest-beach edge, and dominant forest type. Results found only six unique lichens and two lichen associates. A Multi-Response Permutation Procedures (MRPP) test found statistically distinct …

Paternal Care Behaviors Of Japanese Giant Salamander Andrias Japonicus In Natural Populations, Sumio Okada, Yukihiro Fukuda, Mizuki Takahashi

Faculty Journal Articles

No abstract provided.

Robert Folger Thorne—A Botanical Legacy

Aliso: A Journal of Systematic and Floristic Botany

Robert F. Thorne, distinguished botanist and former curator of the herbarium at Rancho Santa Ana Botanic Garden, left a rich botanical legacy. Contributions featured include a list of his articles appearing in Aliso: A Journal of Systematic and Evolutionary Botany, as well a list of plant taxa named for him.

Nueva Técnica De Microscopía Electrónica De Barrido Para El Estudio De Coccoidea (Insecta: Hemiptera), Andrea Saracho Bottero, Lucía E. Claps

Insecta Mundi

Se presenta un protocolo para preparar material de Coccoidea (Insecta: Hemiptera) para realizar observaciones con microscopía electrónica de barrido. Esta técnica consiste en muestras conservadas en alcohol 96°, limpiadas con xilol y acetona y llevadas directamente a la etapa de hidratación y una posterior deshidratación, en alcohol, omitiendo la fi jación en formaldehído gluteraldehído y la posfijación en tetróxido de osmio. Se destaca la importancia de la limpieza del material y la correcta realización de punto crítico, en la etapa de desecación.

A new protocol to prepare material of Coccoidea (Insecta: Hemiptera) for observation with scanning electron microscopy is presented. …

The Trichoptera Of Panama. Ii. Ten New Species Of Microcaddisflies (Trichoptera: Hydroptilidae), Steven C. Harris, Brian J. Armitage

Insecta Mundi

In the Republic of Panama, the family Hydroptilidae (Insecta: Trichoptera) is currently represented by 82 species distributed among 14 genera. In this publication we provide descriptions and illustrations for 10 new species of hydroptilids in the subfamily Hydroptilinae: Tribe Leucotrichiini—Zumatrichia teribe and Z. zegla; Tribe Neotrichiini—Neotrichia pamelae and N. parabullata; and, Tribe Ochrotrichiini—Metrichia nowaczyki, M. sencilla, Nothotrichia panama, Ochrotrichia abrelata, O. nimmoi, and O. pulgara. The genus Nothotrichia is recorded from Panama for the first time.

A Revision Of The Biting Midges In The Culicoides (Monoculicoides) Nubeculosus-Stigma Complex In North America With The Description Of A New Species (Diptera: Ceratopogonidae), William L. Grogan Jr., Timothy J. Lysyk

Insecta Mundi

This revision of the Nearctic biting midges in the Culicoides (Monoculicoides) nubeculosus-stigma complex recognizes four species: C. grandensis Grogan and Phillips, C. riethi Kieffer, C. stigma (Meigen) and C. shemanchuki, new species, from Alberta, Canada and North Dakota, USA. Culicoides stigma is recorded for the first time in the Nearctic region from Alberta, Canada. Culicoides gigas Root and Hoffman is a junior synonym of Culicoides riethi Kieffer (new synonym). A key is provided for the recognition of both sexes of the four North American species in the Culicoides (Monoculicoides) nubeculosus-stigma complex.

A Checklist Of Natural Enemies Of Diaphorina Citri Kuwayama (Hemiptera: Liviidae) In The Department Of Valle Del Cauca, Colombia And The World, Takumasa Kondo, Guillermo González F., Catherine Tauber, Yoan Camilo Guzmán Sarmiento, Andrés Felipe Vinasco Mondragon, Dimitri Forero

Insecta Mundi

In recent years, populations of the Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), have increased in rural citrus orchards and urban backyard gardens. In order to find biological control options for D. citri, a search for natural enemies was conducted in the department of Valle del Cauca, Colombia. The collections were carried out in citrus orchards in rural areas and house gardens and street trees in urban areas. Natural enemies were collected from D. citri found on Citrus spp. and Murraya paniculata (L.) Jack (Rutaceae). A total of 16 species of natural enemies of D. citri distributed in …

Natural History Of The Tortoise Beetle, Discomorpha (Discomorpha) Biplagiata (Guérin) (Chrysomelidae: Cassidinae: Omocerini), R. Wills Flowers, Caroline S. Chaboo

Insecta Mundi

The first natural history account of Discomorpha (Discomorpha) biplagiata (Guérin) (Chrysomelidae: Cassidinae: Omocerini) from Ecuador is presented. Larvae and adults feed on the leaves and stems of Cordia hebeclada Johnst. (Boraginaceae), the first documented host plant for the species. Oviposition and pupation also occur on this host. Young larvae suffered heavy predation, especially from Ectatomma sp. (Formicidae: Ponerinae) and Oplomus nr. marginalis (Pentatomidae: Asopinae).

Se presenta la primera cuenta de la historia natural para Discomorpha (Discomorpha) biplagiata (Guérin) de Ecuador. Las larvas y los adultos se alimentan de las hojas y tallos de Cordia hebeclada Johnst. (Boraginaceae), su primera planta …

The Beetles Of The Lesser Antilles (Insecta, Coleoptera): Diversity And Distributions, Stewart B. Peck

Insecta Mundi

The island arc of the Lesser Antilles lies at the eastern margin of the Caribbean Sea in the Western Hemisphere, and stretches from the eastern end of the islands of the Greater Antilles (at the Virgin Islands), south to a position near the continental islands of Trinidad and Tobago at the north eastern corner of South America. The islands are a part of the West Indian Islands biodiversity “hotspot” and have been available for terrestrial colonization for about the past 15 million years. This is a status report on present knowledge of the beetle faunas of these islands, which is …

New Species And New Country Records For Vietnamese Caddisflies (Insecta: Trichoptera), Tatiana I. Arefina-Armitage, Brian J. Armitage

Insecta Mundi

Identification of caddisfly specimens (Insecta: Trichoptera) from Vietnam collected by or for the Royal Ontario Museum, the American Museum of Natural History, and the Museum für Naturkunde der Humboldt- Universität zu Berlin revealed nine new species in a variety of families and genera. New species include: Philopotamidae—Dolophilodes carpenteri and Wormaldia montuosa; Stenopsychidae—Stenopsyche siniaevi; Polycentropodidae—Nyctiophylax hatinh; Psychomyiidae—Eoneureclipsis afonini; Hydropsychidae—Maesaipsyche lappa; Glossosomatidae—Agapetus darlingi and Agapetus grimaldi; and, Molannidae—Molannodes sapa. In addition, new records for 11 species and two genera (Georgium and Tagalopsyche) of caddisflies from Vietnam …