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Articles 1 - 30 of 31
Full-Text Articles in Entomology
Larval Environments Affect The Implementation Of The Sterile Insect Technique On Aedes Mosquitoes, Katherine G. Evans
Larval Environments Affect The Implementation Of The Sterile Insect Technique On Aedes Mosquitoes, Katherine G. Evans
Theses and Dissertations
Sterile Insect Technique (SIT) is an effective method for controlling pests and has been increasing in popularity to control Aedes mosquitoes. SIT involves inundating an area with sterilized male mosquitoes to reduce egg hatch and ultimately the number of wild adults. Previous research indicates that enacting mortality early in the larval life of Aedes mosquitoes can result in counter-productive effects, due to reduced competition among developing larvae. I hypothesize that the effectiveness of SIT at reducing adult populations is modified by densitydependent mortality and density-dependent growth among larvae. I performed two field-to-lab studies and developed an individual-based model to test …
Contrasting Tick Species Behaviors: A Course-Based Undergraduate Research Experience (Cure), Sara Benham, Shovan Dutta, Rohan Maddamsetti, Clayton Wright, Alena Anderson, David T. Gauthier, Holly D. Gaff
Contrasting Tick Species Behaviors: A Course-Based Undergraduate Research Experience (Cure), Sara Benham, Shovan Dutta, Rohan Maddamsetti, Clayton Wright, Alena Anderson, David T. Gauthier, Holly D. Gaff
Spora: A Journal of Biomathematics
Tick-borne diseases are on the rise throughout the world, and there is a need to better understand tick behavior in order to identify potential new interventions. Ticks have a complex life history and can survive months off-host. There is a lack of large-scale data on off-host tick behavior, which leaves a gap in understanding of tick biology outside of tick-host interactions. Introducing undergraduate students to authentic research early in their studies can help prepare them for independent inquiry in upper-level classes. To address the student needs and fill gaps in tick research, students in introductory biology courses recorded observations of …
Impacts On Malaria Transmission Of Altered Biogenic Amine Levels In {\It Anopheles} Mosquitoes: Insights From A Mathematical Model, Michael Robert
Impacts On Malaria Transmission Of Altered Biogenic Amine Levels In {\It Anopheles} Mosquitoes: Insights From A Mathematical Model, Michael Robert
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Gaff-Msis-Ledder: Agent-Based Modeling Of Tick Population Genetics, Holly Gaff
Gaff-Msis-Ledder: Agent-Based Modeling Of Tick Population Genetics, Holly Gaff
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Geometry Of Competition And Stability For One-Host, Two-Parasitoid Systems With Application To Biocontrol, Michael Kerckhove
Geometry Of Competition And Stability For One-Host, Two-Parasitoid Systems With Application To Biocontrol, Michael Kerckhove
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Gaff-Msis-Robertson: Assessing Lyme Disease Dynamics With Lymesim 2.0, Holly Gaff
Gaff-Msis-Robertson: Assessing Lyme Disease Dynamics With Lymesim 2.0, Holly Gaff
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
An Integral Projection Modeling Approach To Understanding Demographic Effects Of Multispecies Mutualisms, Alexandra Campbell
An Integral Projection Modeling Approach To Understanding Demographic Effects Of Multispecies Mutualisms, Alexandra Campbell
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
Biocontrol Of The Emerald Ash Borer: An Adapted Nicholson-Bailey Model, Michael Kerckhove, Shuheng Chen
Biocontrol Of The Emerald Ash Borer: An Adapted Nicholson-Bailey Model, Michael Kerckhove, Shuheng Chen
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
A Mathematical Model Of Flexible Collective Defense: Crisis Response In Stingless Bees, Maria Gabriela Navas Zuloaga, Kaitlin M. Baudier, Theodore P. Pavlic, Jennifer Fewell, Noam Ben-Asher, Yun Kang
A Mathematical Model Of Flexible Collective Defense: Crisis Response In Stingless Bees, Maria Gabriela Navas Zuloaga, Kaitlin M. Baudier, Theodore P. Pavlic, Jennifer Fewell, Noam Ben-Asher, Yun Kang
Annual Symposium on Biomathematics and Ecology Education and Research
No abstract provided.
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.
Bacterially-Based Immune Challenges And Trauma Elicit Terminal Investment In Male Aedes Aegypti, Molly K. Schumacher
Bacterially-Based Immune Challenges And Trauma Elicit Terminal Investment In Male Aedes Aegypti, Molly K. Schumacher
Theses and Dissertations
Investment in life history traits such as immune function and reproduction is constrained by finite available resources. A cost-of-immunity trade-off may occur in response to infection when resources are diverted away from reproductive effort and into an immune response. Alternatively, an infected individual may enhance reproductive effort to maximize terminal reproductive success in response to the survival threat inherent to infection (terminal investment). We measured male Aedes aegypti reproductive behavior following inoculations with: living bacteria; killed bacteria as an immune elicitor; and a sham control. Mating competitiveness relative to naïve males was also determined through a binary mate choice experiment …
Environmental Impacts On Life History In Container Breeding Mosquitoes, Kathleen May Westby
Environmental Impacts On Life History In Container Breeding Mosquitoes, Kathleen May Westby
Theses and Dissertations
In this dissertation I explore different ways that the environment impacts life history in mosquitoes in ways that may alter vectorial capacity. In chapter I, I tested if short-term sugar deprivation experienced after exposure to La Crosse virus altered infection rates in Aedes albopictus and if sugar treatment and virus infection status altered blood feeding behavior and fecundity. I found no evidence that sugar deprivation impacted infection rates or fecundity. Sugar deprivation did increase blood feeding. There was no effect of infection status on blood feeding or fecundity. In chapter II, I tested for effects of seasonal cues (temperature and …
Seasonal Photoperiods Alter Developmental Time And Mass Of An Invasive Mosquito, Aedes Albopictus (Diptera: Culicidae), Across Its North-South Range In The United States, Steven A. Juliano, Donald A. Yee, Steven M. Vamosi
Seasonal Photoperiods Alter Developmental Time And Mass Of An Invasive Mosquito, Aedes Albopictus (Diptera: Culicidae), Across Its North-South Range In The United States, Steven A. Juliano, Donald A. Yee, Steven M. Vamosi
Faculty Publications – Biological Sciences
The Asian tiger mosquito, Aedes albopictus (Skuse), is perhaps the most successful invasive mosquito species in contemporary history. In the United States, Ae. albopictus has spread from its introduction point in southern Texas to as far north as New Jersey (i.e., a span of approximate to 14 degrees latitude). This species experiences seasonal constraints in activity because of cold temperatures in winter in the northern United States, but is active year-round in the south. We performed a laboratory experiment to examine how life-history traits of Ae. albopictus from four populations (New Jersey [39.4 degrees N], Virginia [38.6 degrees N], North …
Wing Shape As An Indicator Of Larval Rearing Conditions For Aedes Albopictus And Aedes Aegypti (Diptera: Culicidae), C R. Stephens, Steven A. Juliano
Wing Shape As An Indicator Of Larval Rearing Conditions For Aedes Albopictus And Aedes Aegypti (Diptera: Culicidae), C R. Stephens, Steven A. Juliano
Faculty Publications – Biological Sciences
Estimating a mosquito's vector competence, or likelihood of transmitting disease, if it takes an infectious bloodmeal, is an important aspect of predicting when and where outbreaks of infectious diseases will occur. Vector competence can be affected by rearing temperature and inter- and intraspecific competition experienced by the individual mosquito during its larval development. This research investigates whether a new morphological indicator of larval rearing conditions, wing shape, can be used to distinguish reliably temperature and competitive conditions experienced during larval stages. Aedes albopictus (Skuse) and Aedes aegypti (L.) (Diptera: Culicidae) larvae were reared in low intraspecific, high intraspecific, or high …
Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano
Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano
Faculty Publications – Biological Sciences
Discarded vehicle tires are a common habitat for container mosquito larvae, although the environmental factors that may control their presence or abundance within a tire are largely unknown. We sample discarded vehicle tires in six sites located within four counties of central Illinois during the spring and summer of 2006 to determine associations between a suite of environmental factors and community composition of container mosquitoes. Our goal was to find patterns of association between environmental factors and abundances of early and late instars. We hypothesized that environmental factors correlated with early instars would be indicative of oviposition cues, whereas environmental …
No Evolutionary Response To Four Generations Of Laboratory Selection On Antipredator Behavior Of Aedes Albopictus: Potential Implications For Biotic Resistance To Invasion, Banugopan Kesavaraju, Steven A. Juliano
No Evolutionary Response To Four Generations Of Laboratory Selection On Antipredator Behavior Of Aedes Albopictus: Potential Implications For Biotic Resistance To Invasion, Banugopan Kesavaraju, Steven A. Juliano
Faculty Publications – Biological Sciences
Aedes albopictus (Skuse) is an invasive container-dwelling mosquito and an important disease vector that co-occurs with the native mosquito, Aedes triseriatus (Say), and the predatory midge, Corethrella appandiculata (Grabham). Larval Ae. triseriatus show significantly greater antipredatory responses when compared to larval Ae. albopictus in the presence of predation cues from C. appendiculata. The potential for evolution of antipredatory behavioral responses to C. appendiculata in Ae. albopictus is unknown. We used a controlled laboratory selection experiment to test whether Ae. albopictus could evolve antipredatory behavioral responses to C. appendiculata predation. We subjected replicate Ae. albopictus populations to four generations of predation …
Detritus Type Alters The Outcome Of Interspecific Competition Between Aedes Aegypti And Aedes Albopictus (Diptera : Culicidae), Ebony G. Murrell, Steven A. Juliano
Detritus Type Alters The Outcome Of Interspecific Competition Between Aedes Aegypti And Aedes Albopictus (Diptera : Culicidae), Ebony G. Murrell, Steven A. Juliano
Faculty Publications – Biological Sciences
Many studies of interspecific competition between Aedes albopictus (Skuse) and Aedes aegypti (L.) (Diptera: Culicidae) larvae show that Ae. albopictus are superior resource competitors to Ae. aegypti. Single-species studies indicate that growth and survival of Ae. albopictus and Ae. aegypti larvae are affected by the type of detritus present in containers, which presumably affects the amount and quality of microorganisms that the mosquito larvae consume. We tested whether different detritus types alter the intensity of larval competition by raising 10 different density/species combinations of Ae. albopictus and Ae. aegypti larvae under standard laboratory conditions, with one of four detritus types …
Geographic Variation In Adult Survival And Reproductive Tactics Of The Mosquito Aedes Albopictus, Paul T. Leisnham, L M. Sala, Steven A. Juliano
Geographic Variation In Adult Survival And Reproductive Tactics Of The Mosquito Aedes Albopictus, Paul T. Leisnham, L M. Sala, Steven A. Juliano
Faculty Publications – Biological Sciences
Climate differences across latitude can result in seasonal constraints and selection on life history characters. Since Aedes albopictus (Skuse) invaded North America in the mid-1980s, it has spread across a range of approximate to 14 degrees latitude and populations in the north experience complete adult mortality due to cold winter temperatures that are absent in the south. Life table experiments were conducted to test for differences in the adult survival and reproductive schedules of Ae. albopictus females from two populations from the northern (Bloomington, IN [BL] and Manassas, VA [VA]; approximate to 39 degrees N) and southern (Tampa, FL and …
Direct And Indirect Effects Of Animal Detritus On Growth, Survival, And Mass Of Invasive Container Mosquito Aedes Albopictus (Diptera : Culicidae, Donald A. Yee, Banugopan Kesavaraju, Steven A. Juliano
Direct And Indirect Effects Of Animal Detritus On Growth, Survival, And Mass Of Invasive Container Mosquito Aedes Albopictus (Diptera : Culicidae, Donald A. Yee, Banugopan Kesavaraju, Steven A. Juliano
Faculty Publications – Biological Sciences
Compared with plant detritus, animal detritus yields higher growth rates, survival, adult mass, and population growth of container-dwelling mosquitoes. It is unclear whether the benefit from animal detritus to larvae results from greater microorganism growth, direct ingestion of animal detritus by larvae, or some other mechanism. We tested alternative mechanisms by which animal detritus may benefit the invasive container-dwelling mosquito Aedes albopictus (Skuse) (Diptera: Culicidae). In the laboratory, larvae were reared under three conditions with access to 1) detritus, but where microorganisms in the water column were reduced through periodic flushing; 2) water column microorganisms, but larvae had no direct …
Taxonomy Of The Species Of Amphigerontia (Psocoptera : Psocidae) Of The Rocky Mountains Of The United States And Canada, Edward L. Mockford, Johannes E. Anonby
Taxonomy Of The Species Of Amphigerontia (Psocoptera : Psocidae) Of The Rocky Mountains Of The United States And Canada, Edward L. Mockford, Johannes E. Anonby
Faculty Publications – Biological Sciences
Five species of psocids of the genus Amphigerontia Kolbe 1880, are recorded from the Rocky Mountains of the United States and Canada. Amphigerontia longicauda, n. sp., is described. Amphigerontia petiolata (Banks) is recorded from the Rocky Mountains for the first time. The holotype of Amphigerontia infernicola (Chapman) is re-examined and described in detail. New characters for the separation of females of Amphigerontia bijasciata (Latreille) and Amphigerontia montivaga (Chapman) resulted in many new records of the latter species, previously known in the Rocky Mountains from only a single locality. Species-level characters are reviewed and several new ones are added. A key …
Taxonomy Of The Species Of Amphigerontia (Psocoptera : Psocidae) Of The Rocky Mountains Of The United States And Canada, Edward L. Mockford, Johannes E. Anonby
Taxonomy Of The Species Of Amphigerontia (Psocoptera : Psocidae) Of The Rocky Mountains Of The United States And Canada, Edward L. Mockford, Johannes E. Anonby
Faculty Publications – Biological Sciences
Five species of psocids of the genus Amphigerontia Kolbe 1880, are recorded from the Rocky Mountains of the United States and Canada. Amphigerontia longicauda, n. sp., is described. Amphigerontia petiolata (Banks) is recorded from the Rocky Mountains for the first time. The holotype of Amphigerontia infernicola (Chapman) is re-examined and described in detail. New characters for the separation of females of Amphigerontia bijasciata (Latreille) and Amphigerontia montivaga (Chapman) resulted in many new records of the latter species, previously known in the Rocky Mountains from only a single locality. Species-level characters are reviewed and several new ones are added. A key …
Interspecific And Intraspecific Differences In Foraging Preferences Of Container-Dwelling Mosquitoes, Kesavaraju Banugopan, Donald A. Yee, Steven A. Juliano
Interspecific And Intraspecific Differences In Foraging Preferences Of Container-Dwelling Mosquitoes, Kesavaraju Banugopan, Donald A. Yee, Steven A. Juliano
Faculty Publications – Biological Sciences
Feeding preferences of larval container-dwelling mosquitoes are not well understood. Primary production is often absent in container systems and external inputs of animal and plant detritus supply the energy base of container food webs by supporting microorganism prey for mosquitoes. We quantified the feeding preferences of Aedes albopictus (Skuse), a non-native invasive mosquito, and Ochlerotahts triseriatus (Say), a native mosquito, when given a choice of animal and plant detritus. We tested for interpopulational (Illinois versus Florida) differences in feeding preferences, and quantified each species' performance on these two detritus types. When given a choice, both species spent significantly more time …
Asymmetrical Competition And Patterns Of Abundance Of Aedes Albopictus And Culex Pipiens (Diptera : Culicidae), Katie S. Costanzo, Kimberly Mormann, Steven A. Juliano
Asymmetrical Competition And Patterns Of Abundance Of Aedes Albopictus And Culex Pipiens (Diptera : Culicidae), Katie S. Costanzo, Kimberly Mormann, Steven A. Juliano
Faculty Publications – Biological Sciences
We tested for competitive advantage among larvae of Aedes albopictus (Skuse) and Culex pipiens L. in a laboratory experiment and determined the frequency and spatial and temporal patterns of co-occurrence in the field in East St. Louis, IL. In a laboratory competition experiment at multiple combined densities of Ae. albopictus and Cx. pipiens larvae, Ae. albopictus survivorship, and developmental times were significantly affected by conspecific densities but not by Cx. pipiens densities. In contrast, Cx. pipiens survivorship, and developmental times were significantly affected by both conspecific and Ae. albopictus densities. Per capita rate of increase (r') for Ae. albopictus cohorts …
Convergent Habitat Segregation Of Aedes Aegypti And Aedes Albopictus (Diptera : Culicidae) In Southeastern Brazil And Florida, Marieta A H Braks, Ricardo Lourenco-De-Oliveira, Steven A. Juliano, Nildimar A. Honorio, L Philip Lounibos
Convergent Habitat Segregation Of Aedes Aegypti And Aedes Albopictus (Diptera : Culicidae) In Southeastern Brazil And Florida, Marieta A H Braks, Ricardo Lourenco-De-Oliveira, Steven A. Juliano, Nildimar A. Honorio, L Philip Lounibos
Faculty Publications – Biological Sciences
During the rainy season of 2001, the incidence of the dengue vectors Aedes aegypti and Ae. albopictus was examined in different habitats of two cities (Rio de Janeiro and Nova Iguacu) in Rio de Janeiro State, Brazil, and in two cities (Palm Beach and Boca Raton) in Florida. Oviposition trap collections were performed in urban, suburban, and rural habitats in both areas. Our hypothesis that the abundances and frequencies of occurrence of Ae. aegypti and Ae albopictus are affected in opposite ways by increasing urbanization was only partially supported. City, habitat, and their interaction significantly affected the abundance of both …
Precipitation And Temperature Effects On Populations Of Aedes Albopictus (Diptera : Culicidae): Implications For Range Expansion, B W. Alto, Steven A. Juliano
Precipitation And Temperature Effects On Populations Of Aedes Albopictus (Diptera : Culicidae): Implications For Range Expansion, B W. Alto, Steven A. Juliano
Faculty Publications – Biological Sciences
We investigated how temperature and precipitation regime encountered over the life cycle of Aedes albopictus (Skuse) affects populations. Caged populations of A. albopictus were maintained at 22, 26, and 30 degreesC. Cages were equipped with containers that served as sites for oviposition and larval development. All cages were assigned to one of three simulated precipitation regimes: (1) low fluctuation regime - water within the containers was allowed to evaporate to 90% of its maximum before being refilled, (2) high fluctuation regime - water was allowed to evaporate to 25% of its maximum before being refilled, and (3) drying regime - …
Temperature Effects On The Dynamics Of Aedes Albopictus (Diptera : Culicidae) Populations In The Laboratory, Barry W. Alto, Steven A. Juliano
Temperature Effects On The Dynamics Of Aedes Albopictus (Diptera : Culicidae) Populations In The Laboratory, Barry W. Alto, Steven A. Juliano
Faculty Publications – Biological Sciences
We investigated how constant temperatures of 22, 24, and 26 degreesC experienced across the full life cycle affected the dynamics of caged populations of Aedes albopictus (Skuse). All cages were equipped with plastic beakers that served as sites for oviposition and larval development. We measured the per capita daily mortality and emergence rates of the adults and size of adult females, and estimated the intrinsic rate of increase (r) and asymptotic density (K) for each adult population. populations at 26 degreesC had greater intrinsic rates of increase and lower asymptotic densities than populations at 22 and 24 degreesC. Populations at …
Effects Of Habitat Type And Drying On Ascogregarina Barretti (Eugregarinida : Lecudinidae) Infection In Aedes Triseritatus (Diptera : Culicidae), Stephen L. Van Rhein, Barry E. Flanary, Steven A. Juliano
Effects Of Habitat Type And Drying On Ascogregarina Barretti (Eugregarinida : Lecudinidae) Infection In Aedes Triseritatus (Diptera : Culicidae), Stephen L. Van Rhein, Barry E. Flanary, Steven A. Juliano
Faculty Publications – Biological Sciences
The intensity and prevalence of parasitism by Ascogregarina barretti (Vavra) in aedes triseriatus (Say) did not differ between tires and tree holes in field samples taken in September 1996. There was significant variation in the intensity of parasitism among containers that was not significantly cor-related with the pH, conductivity, or temperature of the container water. In an experiment manipulating habitat drying, treatments had a significant effect on A. barretti infection of Ae. triseriatus, only during midsummer in one of two years. Containers maintained at maximal volume had the lowest prevalence of parasitism, and containers that dried out had the greatest …