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Articles 1 - 15 of 15
Full-Text Articles in Life Sciences
Robust Network Stability Of Mosquitoes And Human Pathogens Of Medical Importance, Donald A. Yee, Catherine Dean Bermond, Limarie J. Reyes-Torres, Nicole S. Fijman, Nicole A. Scavo, Joseph Nelsen, Susan H. Yee
Robust Network Stability Of Mosquitoes And Human Pathogens Of Medical Importance, Donald A. Yee, Catherine Dean Bermond, Limarie J. Reyes-Torres, Nicole S. Fijman, Nicole A. Scavo, Joseph Nelsen, Susan H. Yee
Faculty Publications
Background: The exact number of mosquito species relevant to human health is unknown, posing challenges in understanding the scope and breadth of vector–pathogen relationships, and how resilient mosquito vector–pathogen networks are to targeted eradication of vectors.
Methods: We performed an extensive literature survey to determine the associations between mosquito species and their associated pathogens of human medical importance. For each vector–pathogen association, we then determined the strength of the associations (i.e., natural infection, lab infection, lab dissemination, lab transmission, known vector). A network analysis was used to identify relationships among all pathogens and vectors. Finally, we examined how …
No Evidence That Salt Water Ingestion Kills Adult Mosquitoes (Diptera: Culicidae), Donald A. Yee, Catherine Dean, Cameron Webb, Jennifer A. Henke, Gabriela Perezchica-Harvey, Gregory S. White, Ary Faraji, Joshua D. Macaluso, Rebecca Christofferson
No Evidence That Salt Water Ingestion Kills Adult Mosquitoes (Diptera: Culicidae), Donald A. Yee, Catherine Dean, Cameron Webb, Jennifer A. Henke, Gabriela Perezchica-Harvey, Gregory S. White, Ary Faraji, Joshua D. Macaluso, Rebecca Christofferson
Faculty Publications
Various products and insecticides are available that purport to reduce wild populations of adult mosquitoes. Recently, several manufacturers and general public comments on the internet have promoted devices that claim that ingestion of salt will significantly reduce populations of wild mosquitoes to near zero; there are no known scientific efficacy data that support these claims. We tested the survival of nine mosquito species of pest and public health importance across four adult diets: Water Only, Sugar Water Only (8.00%), Salt Water Only (1.03%), and Sugar + Salt Water. Species included the following: Aedes aegypti (L.), Aedes albopictus (Skuse), Aedes dorsalis …
An Army Of One: Predaceous Diving Beetle Life History Stages Affect Interactions With Shared Mosquito Prey, Carmen E. Bofill, Donald A. Yee
An Army Of One: Predaceous Diving Beetle Life History Stages Affect Interactions With Shared Mosquito Prey, Carmen E. Bofill, Donald A. Yee
Faculty Publications
Predators with complex life cycles often differ in their morphology, behavior, and trophic position across their ontogeny, and may thus have variable effects on shared prey. We used the predaceous diving beetle Laccophilus fasciatus rufus as our predator, whose larvae and adults often co-occur in freshwater lentic systems. As a shared prey we used early and late instar Culex quinquefasciatus, a common wetland mosquito. We found that single adult predators were more likely to consume late instar prey compared to juvenile predators, who ate early and late instar prey equally. A mixture of juvenile and adult predator stages led …
Defining The Risk Of Zika And Chikungunya Virus Transmission In Human Population Centers Of The Eastern United States, Carrie A. Manore, Richard S. Ostfeld, Folashade B. Agusto, Holly Gaff, Shannon L. Ladeau
Defining The Risk Of Zika And Chikungunya Virus Transmission In Human Population Centers Of The Eastern United States, Carrie A. Manore, Richard S. Ostfeld, Folashade B. Agusto, Holly Gaff, Shannon L. Ladeau
Biological Sciences Faculty Publications
The recent spread of mosquito-transmitted viruses and associated disease to the Americas motivates a new, data-driven evaluation of risk in temperate population centers. Temperate regions are generally expected to pose low risk for significant mosquito-borne disease; however, the spread of the Asian tiger mosquito (Aedes albopictus) across densely populated urban areas has established a new landscape of risk. We use a model informed by field data to assess the conditions likely to facilitate local transmission of chikungunya and Zika viruses from an infected traveler to Ae. albopictus and then to other humans in USA cities with variable human …
Design For Mosquito Abundance, Diversity, And Phenology Sampling Within The National Ecological Observatory Network, David Hoekman, Y. P. Springer, C. M. Barker, R. Barrera, M. S. Blackmore, W. E. Bradshaw, D. H. Foley, H. S. Ginsberg, M. H. Hayden, C. M. Holzapfel, Steven A. Juliano, L. D. Kramer, S. L. Ladeau, T. P. Livdahl, C. G. Moore, R. S. Nasci, W. K. Reisen, H. M. Savage
Design For Mosquito Abundance, Diversity, And Phenology Sampling Within The National Ecological Observatory Network, David Hoekman, Y. P. Springer, C. M. Barker, R. Barrera, M. S. Blackmore, W. E. Bradshaw, D. H. Foley, H. S. Ginsberg, M. H. Hayden, C. M. Holzapfel, Steven A. Juliano, L. D. Kramer, S. L. Ladeau, T. P. Livdahl, C. G. Moore, R. S. Nasci, W. K. Reisen, H. M. Savage
Faculty Publications – Biological Sciences
The National Ecological Observatory Network (NEON) intends to monitor mosquito populations across its broad geographical range of sites because of their prevalence in food webs, sensitivity to abiotic factors, and relevance for human health. We describe the design of mosquito population sampling in the context of NEON's long-term continental scale monitoring program, emphasizing the sampling design schedule, priorities, and collection methods. Freely available NEON data and associated field and laboratory samples, will increase our understanding of how mosquito abundance, demography, diversity, and phenology are responding to land use and climate change.
Loss Of Glycosaminoglycan Receptor Binding After Mosquito Cell Passage Reduces Chikungunya Virus Infectivity, Amber M. Paul, Dhiraj Acharya, John F. Anderson, Faqing Huang, Fengwei Bai
Loss Of Glycosaminoglycan Receptor Binding After Mosquito Cell Passage Reduces Chikungunya Virus Infectivity, Amber M. Paul, Dhiraj Acharya, John F. Anderson, Faqing Huang, Fengwei Bai
Publications
Chikungunya virus (CHIKV) is a mosquito-transmitted alphavirus that can cause fever and chronic arthritis in humans. CHIKV that is generated in mosquito or mammalian cells differs in glycosylation patterns of viral proteins, which may affect its replication and virulence. Herein, we compare replication, pathogenicity, and receptor binding of CHIKV generated in Vero cells (mammal) or C6/36 cells (mosquito) through a single passage. We demonstrate that mosquito cell derived CHIKV (CHIKVmos) has slower replication than mammalian cell derived CHIKV (CHIKVvero), when tested in both human and murine cell lines. Consistent with this, CHIKVmos infection in both cell lines produce less cytopathic …
Spatial Heterogeneity, Host Movement And Mosquito-Borne Disease Transmission, Miguel A. Acevedo, Olivia Prosper, Kenneth Lopiano, Nick Ruktanonchai, T. Trevor Caughlin, Maia Martcheva, Craig W. Osenberg, David L. Smith
Spatial Heterogeneity, Host Movement And Mosquito-Borne Disease Transmission, Miguel A. Acevedo, Olivia Prosper, Kenneth Lopiano, Nick Ruktanonchai, T. Trevor Caughlin, Maia Martcheva, Craig W. Osenberg, David L. Smith
Dartmouth Scholarship
Mosquito-borne diseases are a global health priority disproportionately affecting low-income populations in tropical and sub-tropical countries. These pathogens live in mosquitoes and hosts that interact in spatially heterogeneous environments where hosts move between regions of varying transmission intensity. Although there is increasing interest in the implications of spatial processes for mosquito-borne disease dynamics, most of our understanding derives from models that assume spatially homogeneous transmission. Spatial variation in contact rates can influence transmission and the risk of epidemics, yet the interaction between spatial heterogeneity and movement of hosts remains relatively unexplored. Here we explore, analytically and through numerical simulations, how …
Cell Type-Dependent Rna Recombination Frequency In The Japanese Encephalitis Virus, Wei-Wei Chiang, Chingkai Chuang, Mei Chao, Wei-June Chen
Cell Type-Dependent Rna Recombination Frequency In The Japanese Encephalitis Virus, Wei-Wei Chiang, Chingkai Chuang, Mei Chao, Wei-June Chen
Plant Pathology Faculty Publications
Japanese encephalitis virus (JEV) is one of approximately 70 flaviviruses, frequently causing symptoms involving the central nervous system. Mutations of its genomic RNA frequently occur during viral replication, which is believed to be a force contributing to viral evolution. Nevertheless, accumulating evidences show that some JEV strains may have actually arisen from RNA recombination between genetically different populations of the virus. We have demonstrated that RNA recombination in JEV occurs unequally in different cell types. In the present study, viral RNA fragments transfected into as well as viral RNAs synthesized in mosquito cells were shown not to be stable, especially …
An Epidemiological Model Of Rift Valley Fever With Spatial Dynamics, Tianchan Niu, Holly D. Gaff, Yiannis E. Papelis, David M. Hartley
An Epidemiological Model Of Rift Valley Fever With Spatial Dynamics, Tianchan Niu, Holly D. Gaff, Yiannis E. Papelis, David M. Hartley
Biological Sciences Faculty Publications
As a category A agent in the Center for Disease Control bioterrorism list, Rift Valley fever (RVF) is considered a major threat to the United States (USA). Should the pathogen be intentionally or unintentionally introduced to the continental USA, there is tremendous potential for economic damages due to loss of livestock, trade restrictions, and subsequent food supply chain disruptions. We have incorporated the effects of space into a mathematical model of RVF in order to study the dynamics of the pathogen spread as affected by the movement of humans, livestock, and mosquitoes. The model accounts for the horizontal transmission of …
Enhancing Genome Investigations In The Mosquito Culex Quinquefasciatus Via Bac Library Construction And Characterization, Paul V. Hickner, Becky Debruyn, Diane D. Lovin, Akio Mori, Christopher Saski, David W. Severson
Enhancing Genome Investigations In The Mosquito Culex Quinquefasciatus Via Bac Library Construction And Characterization, Paul V. Hickner, Becky Debruyn, Diane D. Lovin, Akio Mori, Christopher Saski, David W. Severson
Publications
Background
Culex quinquefasciatus (Say) is a major species in the Culex pipiens complex and an important vector for several human pathogens including West Nile virus and parasitic filarial nematodes causing lymphatic filariasis. It is common throughout tropical and subtropical regions and is among the most geographically widespread mosquito species. Although the complete genome sequence is now available, additional genomic tools are needed to improve the sequence assembly.
Findings
We constructed a bacterial artificial chromosome (BAC) library using the pIndigoBAC536 vector and HindIII partially digested DNA isolated from Cx. quinquefasciatus pupae, Johannesburg strain (NDJ). Insert size was estimated by Not …
Natural History Of Belonuchus Nordmann Spp. And Allies (Coleoptera: Staphylinidae) In Heliconia L. (Zingiberales: Heliconiaceae) Flower Bracts, J. H. Frank, R. Barrera
Natural History Of Belonuchus Nordmann Spp. And Allies (Coleoptera: Staphylinidae) In Heliconia L. (Zingiberales: Heliconiaceae) Flower Bracts, J. H. Frank, R. Barrera
Insecta Mundi
Adults, and in some species larvae, of several members of Belonuchus Nordmann (Coleoptera: Staphylinidae: Staphylininae) and a few related genera seem to be to various degrees consistently associated with flower bracts of the genus Heliconia (Zingiberales: Heliconiaceae). They are predators and eat various dipterous and lepidopterous larvae in that habitat. Adults of at least Belonuchus cephalotes (Sharp) and Odontolinus fasciatus Sharp are able to immerse completely in water to capture larvae and/or pupae of mosquitoes (Culicidae).
Adults and larvae of Belonuchus satyrus Erichson, and adults of B. cacao Blackwelder and B. rufipennis (F.) were found in water-filled flower bracts of …
Response Of Adult Mosquitoes To Light-Emitting Diodes Placed In Resting Boxes And In The Field, Michael T. Bentley, Phillip E. Kaufman, Daniel L. Kline, Jerome A. Hogsette
Response Of Adult Mosquitoes To Light-Emitting Diodes Placed In Resting Boxes And In The Field, Michael T. Bentley, Phillip E. Kaufman, Daniel L. Kline, Jerome A. Hogsette
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The response of adult mosquitoes to 4 light-emitting diode (LED) wavelengths was evaluated using diode-equipped sticky cards (DESCs) and diode-equipped resting boxes at 2 sites in north central Florida. Wavelengths evaluated were blue (470 nm), green (502 nm), red (660 nm), and infrared (IR) (860 nm). When trapping with DESCs, 15 mosquito species from 7 genera (Aedes, Anopheles, Coquillettidia, Culex, Mansonia, Psorophora, and Uranotaenia) were captured. Overall, approximately 43.8% of all mosquitoes were trapped on DESCs fitted with green LEDs. Significantly more females of Aedes infirmatus, Aedes vexans, and Culex nigripalpus were captured on DESCs fitted with blue …
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 …
New And Old Mosquito Records For Extreme Southern Florida (Diptera: Culicidae), Lawrence J. Hribar
New And Old Mosquito Records For Extreme Southern Florida (Diptera: Culicidae), Lawrence J. Hribar
Insecta Mundi
New locality records for Culiseta inornata (Williston) are reported from Big Pine Key, Grassy Key, and No Name Key in Monroe County, Florida. Five specimens were collected in dry ice-baited light traps. An old, previously unrecognized record for Anopheles grabhamii Theobald from Miami, Dade County, Florida, is reported based on specimens found in the Florida State Collection of Arthropods.
Aquatic Insects Of Upper Three Runs Creek, Savannah River Plant, South Carolina. Part Ii: Diptera, John C. Morse, Jay W. Chapin, David D. Herlong, Ray S. Harvey
Aquatic Insects Of Upper Three Runs Creek, Savannah River Plant, South Carolina. Part Ii: Diptera, John C. Morse, Jay W. Chapin, David D. Herlong, Ray S. Harvey
Publications
As discussed in detail in Part I of this series (Morse et al. 1980), aquatic insects were collected biweekly from six locations on Upper Three Runs Creek, Savannah River Plant near Aiken, South Carolina, from September 1976 through August 1977, using light traps and semi-quantitative benthic sampling methods. See part I (Morse et al. 1980) for site and habitat descriptions and for a discussion of the methods used. In that publication, faunistic results were provided for all insect taxa except Diptera and relative abundance data for all but Diptera and non-dryopoid Coleoptera.