Results 51 to 60 of about 49,665 (231)

Reduced fitness cost accounts for the stability of a malathion‐resistant heterogeneous duplication haplotype in Ceratitis capitata field populations

Pest Management Science, EarlyView.
Malathion resistance in Spanish field populations of Ceratitis capitata is associated with a point mutation (R allele) and a heterogeneous duplication (RS haplotype) of the Ccace2 gene. The R allele imposes a higher fitness cost than the RS haplotype under laboratory and field conditions. An evolutionary model supports the stability of the RS haplotype
Rabeh Arouri, Francisco Couso‐Ferrer, Elena López‐Errasquín, Beatriz Beroiz, Lucas Sánchez, Pedro Hernández‐Crespo, Félix Ortego   +6 more
wiley   +1 more source

Increasing role of Anopheles funestus and Anopheles arabiensis in malaria transmission in the Kilombero Valley, Tanzania [PDF]

, 2014
In order to sustain the gains achieved by current malaria control strategies, robust surveillance systems that monitor dynamics of vectors and their roles in malaria transmission over time are essential. This longitudinal study demonstrates the trends in
McCall, Philip; id_orcid, Dickson W Lwetoijera, Philip J McCall, McCall, Philip J., Harris, Caroline, Caroline Harris, Silas Majambere, Lwetoijera, Dickson W., Gregor J Devine, Stefan Dongus, Dongus, Stefan, Kiware, Samson S., Samson S Kiware, Devine, Gregor J., Majambere, Silas   +14 more
core   +1 more source

Long‐term impact of exposure to Royal Guard, a pyriproxyfen‐based bed net, on pyrethroid‐resistant malaria vectors from Cameroon using DNA‐based metabolic resistance markers

Pest Management Science, Volume 81, Issue 4, Page 2165-2180, April 2025.
We used recently detected P450 DNA‐based markers of pyrethroid resistance in both Anopheles funestus and Anopheles gambiae to demonstrate that although pyrethroid‐resistant mosquitoes have higher ability to survive and live longer after exposure to Royal Guard, this net significantly affects their lifespan, blood feeding ability and interestingly ...
Emilie S Ngongang‐Yipmo, Magellan Tchouakui, Benjamin D Menze, Riccado F Tiomela, Derrick Fofie, Vanessa B Ngannang‐Fezeu, Jean L Mugenzi, Flobert Njiokou, Charles S Wondji   +8 more
wiley   +1 more source

Insecticide resistance status in Anopheles gambiae (s.l.) in coastal Kenya

Parasites & Vectors, 2021
Background The rapid and widespread evolution of insecticide resistance has emerged as one of the major challenges facing malaria control programs in sub-Saharan Africa.
Daniel N. Munywoki, Elizabeth D. Kokwaro, Joseph M. Mwangangi, Ephantus J. Muturi, Charles M. Mbogo   +4 more
doaj   +1 more source

Innate preference for host-odor blends modulates degree of anthropophagy of Anopheles gambiae sensu lato (Diptera: Culicidae) [PDF]

, 2001
In field studies, Anopheles gambiae Giles sensu stricto obtains most blood meals from humans, whereas Anopheles quadriannulatus Theobald bites predominantly bovids. We investigated whether host odors modulate the host preference of these mosquito species.
Braks, M.A.H., Dekker, T., Takken, W.
core  

The pyrethroid knock-down resistance gene in the Anopheles gambiae complex in Mali and further indication of incipient speciation within An. gambiae s.s.

, 2003
In Mali the Anopheles gambiae complex consists of An. arabiensis and Mopti, Savanna and Bamako chromosomal forms of An. gambiae s.s. Previous chromosomal data suggests a complete reproductive isolation among these forms. Sequence analysis of rDNA regions
Touré, YT, Coulibaly, M, ALLOUECHE A., COLUZZI BARTOCCIONI, Caio Mario, PETRARCA, Vincenzo, FANELLO C., Santolamazza, F, DOLO G., SANTOLAMAZZA, FEDERICA, Dolo, G, della Torre, A, Coluzzi, M, COULIBALY M., DELLA TORRE, Alessandra, Fanello, C, CURTIS C. F., TOURE' Y. T., Curtis, CF, Fanello, Caterina, Petrarca, V, Alloueche, A   +20 more
core   +1 more source

Prostaglandin E2 (PGE2) signaling regulates fluid excretion and uric acid metabolism in the mosquito Anopheles gambiae

Insect Science, EarlyView.
Prostaglandin E2 (PGE2) signaling via its receptor has integral roles in mosquito physiology, mediating fluid excretion, stimulating hindgut contractions, and in modulating uric acid levels. Together, these results uncover previously unrecognized roles of prostaglandin signaling in osmotic balance and metabolic homeostasis in mosquitoes.
Hyeogsun Kwon, David R. Hall, Houda O. Maaroufi, Ryan C. Smith   +3 more
wiley   +1 more source

Effectiveness of synthetic versus natural human volatiles as attractants for Anopheles gambiae (Diptera: Culicidae) sensu stricto [PDF]

, 2010
Females of the African malaria vector, Anopheles gambiae Giles sensu stricto, use human volatiles to find their blood-host. Previous work has shown that ammonia, lactic acid, and aliphatic carboxylic acids significantly affect host orientation and ...
Knols, B.G.J., Smallegange, R.C., Takken, W.   +2 more
core   +1 more source

Decades of Enclosure Protection Exert Composite Effects on Grassland Grasshopper Communities

Integrative Zoology, EarlyView.
Decades of enclosure protection have altered grasshopper community structure, with species‐specific effects on population dynamics. For the low‐mobility grasshopper Chorthippus fallax, abundance did not differ strongly between exclosure‐protected and overgrazed areas, but its egg development duration was longer in exclosures. The two C.
Dan‐dan Feng, Hui‐feng Zhao, Ya‐hui Men, Jing Li, Mei‐ling Yang, Cai‐qing Yang, Bing Chen, Ai‐bing Zhang   +7 more
wiley   +1 more source

Hybridization studies to modify the host preference of Anopheles gambiae.

, 2014
A strategy to decrease the vector competence of Anopheles gambiae sensu stricto (Diptera: Culicidae), the most efficient malaria vector in Africa, may consist of exploiting the genes involved in zoophily.
Takken, W, Pates, HV, Pates, H.V., Takken, W., Curtis, CF, Curtis, C.F.   +5 more
core   +1 more source