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Articles 31 - 50 of 50
Full-Text Articles in Life Sciences
Local And Landscape Effects On Butterfly Abundance In Cp-42 Plantings, Emma Simpson, Kate Sinnott, Mark Myers
Local And Landscape Effects On Butterfly Abundance In Cp-42 Plantings, Emma Simpson, Kate Sinnott, Mark Myers
Summer Undergraduate Research Program (SURP) Symposium
The conversion of grassland habitats and intensification of row crop agriculture over the last several decades have driven declines in native pollinator populations throughout the Midwestern USA. These declines in native bee and butterfly abundance have negative ecosystem consequences due to these insects’ important ecological roles as pollinators of vegetable crops and other plant life. The United States Department of Agriculture’s Conservation Reserve Program Pollinator Habitat Initiative (CP-42) aims to conserve native pollinators by increasing pollinator habitat throughout the United States. However, since the program’s inception in 2011, there has been little monitoring of its effectiveness and no documentation of …
Assessing Cp - 42 Habitat Value For Bees Using The Floral Resource Index, Allison Eagan, Gabrielle Brown, Ai Wen
Assessing Cp - 42 Habitat Value For Bees Using The Floral Resource Index, Allison Eagan, Gabrielle Brown, Ai Wen
Summer Undergraduate Research Program (SURP) Symposium
Prairies once dominated 85% of Iowa. Sadly, that large portion of native prairie has been drastically reduced to 0.01% because of agricultural expansion. Habitat loss is one of the main contributors to the massive decline in the native bee population and its biodiversity. Native pollinators are essential to the ecosystem and play a large role in the pollination of row crops. The Conservation Reserve Program (CRP), administered by the US Department of Agriculture Farm Service Agency, launched the CP-42 program specifically as a Pollinator Habitat Initiative for forbs and grasses to be planted to increase pollinator habitat. However, no methods …
Sown And Unsown Floral Resources Both Support Bee Abundance, Pryce Johnson, Kenneth Elgersma, Ai Wen
Sown And Unsown Floral Resources Both Support Bee Abundance, Pryce Johnson, Kenneth Elgersma, Ai Wen
Summer Undergraduate Research Program (SURP) Symposium
The recent decline in native bee populations across the Midwest has been linked to the drastic decrease of prairie habitats and pollinator floral resources. Since the agricultural revolution, grassland areas have been removed and replaced with row crops to meet the needs of expanding markets, including the production of ethanol. In response to the loss of these (and other) essential pollinators, the Conservation Reserve Program administered by the USDA initiated a pollinator habitat initiative called CP-42. Despite efforts to assess the program's success, there is still much that needs to be learned about restoring prairie habitats for bees. With CP-42, …
Tracing Nutrient Sources To Lipid Production In Insects Using Stable Isotope (Δ13c, Δ2h) Tracers: Implications For Nutritional Physiology Of Migratory Species., Libesha Anparasan, Keith A. Hobson
Tracing Nutrient Sources To Lipid Production In Insects Using Stable Isotope (Δ13c, Δ2h) Tracers: Implications For Nutritional Physiology Of Migratory Species., Libesha Anparasan, Keith A. Hobson
Western Research Forum
Using stable isotope measurements of insect tissues to determine origin and migratory patterns is well established. However, isotopically determining nutritional origins of lipids, the primary fuel of migration, has not been as thoroughly researched. We explored isotopic links between diet and stored lipids in laboratory raised True armyworm moths (Mythimna unipuncta) using δ13C and δ2H measurements. Pupae were randomly separated into four groups (n=20) and fed isotopically distinct nectar, each consisting of a combination of high δ13C (C4 sugar), or low δ13C (C3 sugar) carbohydrate, with high δ2H (deuterium spiked), …
A Household Model Of German Cockroach Infestations And Their Effect On Symptoms Of Atopic Asthma, Karen Funderburk
A Household Model Of German Cockroach Infestations And Their Effect On Symptoms Of Atopic Asthma, Karen Funderburk
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
The Behavior Response Of Antlion Larvae To Alternating Magnetic Fields, Lindsey Wagner, Caleb L. Adams
The Behavior Response Of Antlion Larvae To Alternating Magnetic Fields, Lindsey Wagner, Caleb L. Adams
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Mosquito Ecology, Arbovirus Dynamics, And Control, Cynthia Lord
Mosquito Ecology, Arbovirus Dynamics, And Control, Cynthia Lord
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Implementation Of The Tickbot: Results And Implications For Modeling, Alexis White, Armin Bahrani, Amanda Devleeschower, Holly Gaff
Implementation Of The Tickbot: Results And Implications For Modeling, Alexis White, Armin Bahrani, Amanda Devleeschower, Holly Gaff
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Control Policies And Sensitivity Analysis In A Cutaneous Leishmaniasis Model: A Case Study In Cusco Region, Peru., Rocio M. Caja-Rivera, Ignacio Barradas
Control Policies And Sensitivity Analysis In A Cutaneous Leishmaniasis Model: A Case Study In Cusco Region, Peru., Rocio M. Caja-Rivera, Ignacio Barradas
Biology and Medicine Through Mathematics Conference
No abstract provided.
The Bees Of A.L. Mangham Jr. Regional Airport, Nacogdoches, Texas, Ryan J. Pingedot, Daniel J. Bennett
The Bees Of A.L. Mangham Jr. Regional Airport, Nacogdoches, Texas, Ryan J. Pingedot, Daniel J. Bennett
Undergraduate Research Conference
The United States is home to about 4,000 species of native bees, and many are critically important due to the pollination services they provide (Buchman & Nabhan 1996). Most of these are inconspicuous, solitary bees that nest in the ground. In recent years, a number of bee species have been shown to be in decline (Burkle 2013). Due to these declines, it is important to study and provide habitat for local bee populations.
As a result of periodic mowing, the surroundings of the A.L. Mangham Jr. Regional Airport in Nacogdoches County, Texas provide a grassy, prairie-like habitat that results in …
Ifly: Code Development For An App To Support Automating Entomological Data Collection, Michael P. Cosentino, Trevor Stamper
Ifly: Code Development For An App To Support Automating Entomological Data Collection, Michael P. Cosentino, Trevor Stamper
The Summer Undergraduate Research Fellowship (SURF) Symposium
We are developing a prototype entomological data-collection application called "iFly," which runs on a field-capable iPad device. In this phase, we tackled refining screens and introducing a database manager to streamline operations as info is entered, stored, retrieved and delivered. We used SQLite3 database in Apple's Xcode Integrated Development Environment (IDE). Xcode gives mixed programming results. Apple's iOS environment ensures functional and fairly error-free apps can be built. But the sophisticated Xcode IDE requires specialist developers and valuable project time is spent as new programmers learn key techniques. The iFly prototype was advanced with improved database integration; however, more work …
Dynamics Of Two Pathogens In A Single Tick Population, Alexis White
Dynamics Of Two Pathogens In A Single Tick Population, Alexis White
Biology and Medicine Through Mathematics Conference
No abstract provided.
Hands Of The Future, Inc; Junior Nature Club; Living Schoolyards, Zonda K. Bryant
Hands Of The Future, Inc; Junior Nature Club; Living Schoolyards, Zonda K. Bryant
Purdue P-12 Networking Summit & Poster Session
Programs to connect children to nature
Seasonality Of Forensically Relevant Diptera In Northwestern Indiana, Sarah M. Stanley, Trevor Stamper
Seasonality Of Forensically Relevant Diptera In Northwestern Indiana, Sarah M. Stanley, Trevor Stamper
The Summer Undergraduate Research Fellowship (SURF) Symposium
Minimum postmortem interval (mPMI) estimations are critical to solving cases of equivocal death and the accuracy of these predictions can depend on the understanding of necrophagous fly successional patterns. In order to better understand the successional patterns of necrophagous flies, it is important to know the seasonality of forensically relevant fly species—that is, the baseline pattern of their presence and absence in relation to annually cyclic environmental factors. Since many environmental factors play a role in insect seasonality, it is possible that some of these factors can be summed to create an index that represents seasonality in a simpler form. …
Influence Of Temperature On The Tensile Strength Of Spider Silk (Araneus Gemmoides), Victoria Lekson
Influence Of Temperature On The Tensile Strength Of Spider Silk (Araneus Gemmoides), Victoria Lekson
Seaver College Research And Scholarly Achievement Symposium
Temperature ranges between day and night in southern California can be as great as 30°C and may influence vital functioning of ectothermic organisms. Arachnids produce silks from a pair of spinnerets in their abdomen and rely on variance in protein composition to make different types of silks. Temperature may influence tensile strength of filaments. We tested the effects of temperature on tensile strength of dragline silk of five specimens of Araneus gemmoides (orb-weaver) which were collected from Malibu Creek State Park in the Santa Monica Mountains of southern California, under five temperature conditions. Each specimen was placed in a 0.0283 …
P-27 Factors Affecting Phonotactic Responses In Male Acheta Domesticus, Erik Thordarson
P-27 Factors Affecting Phonotactic Responses In Male Acheta Domesticus, Erik Thordarson
Honors Scholars & Undergraduate Research Poster Symposium Programs
This research addresses some of the possible factors that affect male Acheta domesticus phonotactic responses to calls of males of the same species. The study examines cricket age and social interaction with females as possible factors affecting this behavior. Through logistic regression analysis, the study attempts to demonstrate a link between these factors and the responsiveness of the male crickets in the study. As the crickets aged, they responded to a wider range of syllable periods, which may imply that they follow a similar pattern of decreasing selectivity in their response with age as their female counterparts. The socialization aspect …
National Park Service Cave Ecology Inventory And Monitoring Framework, Gretchen M. Baker, Steven J. Taylor, Shawn Thomas, Rick Olson, Kathy Lavoie, Marie Denn, Steven Thomas, Hazel Barton, Kurt Helf, Rene Ohms, Joel Despain, Jim Kennedy, David Larson
National Park Service Cave Ecology Inventory And Monitoring Framework, Gretchen M. Baker, Steven J. Taylor, Shawn Thomas, Rick Olson, Kathy Lavoie, Marie Denn, Steven Thomas, Hazel Barton, Kurt Helf, Rene Ohms, Joel Despain, Jim Kennedy, David Larson
National Cave and Karst Management Symposium 2013
A team developed the Cave Ecology Inventory and Monitoring Framework for National Park Service (NPS) units. It contains information for NPS cave managers across the United States to determine how to inventory and monitor cave ecology. Due to the wide geographical scope of NPS caves and their many different types, the document does not prescribe exact protocols. Instead, it provides guidance for what types of inventory and monitoring are possible, a framework for deciding how to prioritize inventory and monitoring activities, and references to specific protocols that are already in place at NPS cave parks.
Keywords: cave ecology, cave microbiology, …
Characterization Of Ips Pini Ipsdienol Dehydrogenase (Idol Dh), Heidi Pak, Claus Tittiger, William Welch
Characterization Of Ips Pini Ipsdienol Dehydrogenase (Idol Dh), Heidi Pak, Claus Tittiger, William Welch
Festival of Communities: UG Symposium (Posters)
Ipsdienol is an important pheromone component for pine engraver beetle, Ips pini. Ipsdienol is a ten carbon monoterpenoid secondary alcohol and ipsdienone is the corresponding ketone. We are characterizing the activity of recombinant IDOL DH produced in Sf9 (insect) cells. The enzyme has a high stereospecificity: (-) ipsdienol was found to be a substrate while (+)-ipsdienol was neither a substrate nor inhibitor. Closely related monoterpenoids, such as nerol, geraniol, and citral, were neither substrates nor inhibitors. Smaller compounds, such as 2-propanol, also failed to act as an inhibitor or substrate. This indicates the binding site of this enzyme is highly …
Role Of Ecdysone Signaling In Fat Body Remodeling, Marsha Kristel Bernardo, N. Bond, Allen G. Gibbs
Role Of Ecdysone Signaling In Fat Body Remodeling, Marsha Kristel Bernardo, N. Bond, Allen G. Gibbs
Undergraduate Research Opportunities Program (UROP)
Climate change is fundamentally connected to animal development and survival, and the life history of an organism must be coordinated with predictable seasonal changes of the environment. Climate change affects the life cycle of plants, a major food source for insects. If photoperiod, the primary environmental queue that insects utilize to determine the proper emergence time, and food availability becomes out of sync, many populations of insects and other animals could be threatened. Understanding animal development can provide insight into this issue and could provide clues that may help the scientific community predict how insect populations may respond to climate …
Investigation Of Gene And Protein Expression Based On Honey Bee (Apis Mellifera) Aging, Flight Experience, And Behavior, Azucena A. Benito, G. E. Mancinelli, A. Ammons, Michelle M. Elekonich
Investigation Of Gene And Protein Expression Based On Honey Bee (Apis Mellifera) Aging, Flight Experience, And Behavior, Azucena A. Benito, G. E. Mancinelli, A. Ammons, Michelle M. Elekonich
Undergraduate Research Opportunities Program (UROP)
Honeybees undergo a process of adult behavioral development, spending their first 2-3 weeks working inside the constant environment of the hive. At about 3 weeks of age workers leave the hive as foragers who gather pollen and nectar. Previous research found that bees show an enormous decline in immunity as a result of their transition from regular hive jobs to more difficult foraging activities. Foragers can be forced to go back into hive-tasks, thus becoming “reverted nurses” which may also allow a reversal of immunosenescence. Understanding how this happens could prove to be useful because if there is flexibility in …