Synthesis and Future Challenges: The Response of Mosquitoes to Host odours

Takken, Willem

doi:10.1002/9780470514948.ch21

Cited by 25 publications

(14 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be further divided into non-oriented flight or flight oriented towards host location and attraction (78). The last two types of dispersal are associated with host-seeking mosquitoes and are mediated by host-derived cues, such as odours (lactic acid, ammonia, fatty acids, CO 2 ), as well as humidity and (body) heat (87,88). This dispersal eventually results in a blood meal.…”

Section: Short-range Dispersalmentioning

confidence: 99%

Mosquitoes and Culicoides biting midges: vector range and the influence of climate change

Elbers¹,

Koenraadt²,

Meiswinkel³

2015

Rev. Sci. Tech. OIE

View full text Add to dashboard Cite

SummaryVector-borne animal diseases pose a continuous and substantial threat to livestock economies around the globe. Increasing international travel, the globalisation of trade, and climate change are likely to play a progressively more important role in the introduction, establishment and spread of arthropod-borne pathogens worldwide. A review of the literature reveals that many climatic variables, functioning singly or in combination, exert varying effects on the distribution and range of Culicoides vector midges and mosquitoes. For example, higher temperatures may be associated with increased insect abundancethereby amplifying the risk of disease transmission -but there are no indications yet of dramatic shifts occurring in the geographic range of Culicoides midges. However, the same cannot be said for mosquitoes: over the last few decades, multiple Asian species have established themselves in Europe, spread and are unlikely to ever be eradicated. Research on how insects respond to changes in climate is still in its infancy. The authors argue that we need to grasp how other annectant changes, such as extremes in precipitation (drought and flooding), may affect the dispersal capability of mosquitoes. Models are useful for assessing the interplay between mosquito vectors expanding their range and the native flora and fauna; however, ecological studies employing classical mark-release-recapture techniques remain essential for addressing fundamental questions about the survival and dispersal of mosquito species, with the resulting parameters fed directly into new-generation disease transmission models. Studies on the eventual impact of mosquitoes on animal and human health should be tackled through large-scale integrated research programmes. Such an approach calls for more collaborative efforts, along the lines of the One Health Initiative.

show abstract

Section: Short-range Dispersalmentioning

confidence: 99%

Mosquitoes and Culicoides biting midges: vector range and the influence of climate change

Elbers¹,

Koenraadt²,

Meiswinkel³

2015

Rev. Sci. Tech. OIE

View full text Add to dashboard Cite

show abstract

“…Species-specific host preference is thought to be based on olfaction, and host specificity is genetically determined, as demonstrated within members of the An. gambiae complex (Takken, 1996). The closely related species of the complex differ in their host preferences, varying from anthropophilic to zoophilic (Prior and Archives of Insect Biochemistry and Physiology Torr, 2002;Pates et al, 2001) and the level of anthropophily is a major determinant of vectorial capacity for human malaria (Macdonald, 1957).…”

Section: Introductionmentioning

confidence: 99%

Identification and expression of odorant-binding proteins of the malaria-carrying mosquitoesAnopheles gambiae andAnopheles arabiensis

Pickett

Field

et al. 2005

Arch. Insect Biochem. Physiol.

View full text Add to dashboard Cite

Host preference and blood feeding are restricted to female mosquitoes. Olfaction plays a major role in host-seeking behaviour, which is likely to be associated with a subset of mosquito olfactory genes. Proteins involved in olfaction include the odorant receptors (ORs) and the odorant-binding proteins (OBPs). OBPs are thought to function as a carrier within insect antennae for transporting odours to the olfactory receptors. Here we report the annotation of 32 genes encoding putative OBPs in the malaria mosquito Anopheles gambiae and their tissue-specific expression in two mosquito species of the Anopheles complex; a highly anthropophilic species An. gambiae sensu stricto and an opportunistic, but more zoophilic species, An. arabiensis. RT-PCR shows that some of the genes are expressed mainly in head tissue and a subset of these show highest expression in female heads. One of the genes (agCP1588) which has not been identified as an OBP, has a high similarity (40%) to the Drosophila pheromone-binding protein 4 (PBPRP4) and is only expressed in heads of both An. gambiae and An. arabiensis, and at higher levels in female heads. Two genes (agCP3071 and agCP15554) are expressed only in female heads and agC15554 also shows higher expression levels in An. gambiae. The expression profiles of the genes in the two members of the Anopheles complex provides the first step towards further molecular analysis of the mosquito olfactory apparatus.

show abstract

“…For the latter species, CO 2 accounted for 79% of the attraction. Carbon dioxide is considered a general cue used by almost all blood-feeding mosquito species in their host-seeking behavior (Takken 1996). For highly anthropophilic species such as An.…”

mentioning

confidence: 99%

Attractiveness of MM-X Traps Baited with Human or Synthetic Odor to Mosquitoes (Diptera: Culicidae) in The Gambia

Qiu

Smallegange

Braak

et al. 2007

Self Cite

View full text Add to dashboard Cite

Chemical cues play an important role in the host-seeking behavior of blood-feeding mosquitoes (Diptera: Culicidae). A field study was carried out in The Gambia to investigate the effects of human odor or synthetic odor blends on the attraction of mosquitoes. MM-X traps baited with 16 odor blends to which carbon dioxide (CO 2 ) was added were tested in four sets of experiments. In a second series of experiments, MM-X traps with 14 odor blends without CO 2 were tested. A blend of ammonia and L-lactic acid with or without CO 2 was used as control odor in series 1 and 2, respectively. Centers for Disease Control and Prevention (CDC) traps were placed in a traditional house and an experimental house to monitor mosquito densities during the experiments. The MM-X traps caught a total number of 196,756 mosquitoes, with the most abundant species belonging to the genera Mansonia (70.6%), Anopheles (17.5%), and Culex (11.5%). The most abundant mosquito species caught by the CDC traps (56,290 in total) belonged to the genera Mansonia (59.4%), Anopheles (16.0% An. gambiae s.l. Giles, and 11.3% An. ziemanni Grünberg), and Culex (11.6%). MM-X traps baited with synthetic blends were in many cases more attractive than MM-X traps baited with human odors. Addition of CO 2 to synthetic odors substantially increased the catch of all mosquito species in the MM-X traps. A blend of ammonia + L-lactic acid + CO 2 + 3-methylbutanoic acid was the most attractive odor for most mosquito species. The candidate odor blend shows the potential to enhance trap collections so that traps will provide better surveillance and possible control.Keywords mosquito sampling; odor baits; carbon dioxide; human odor In Africa, major problems are caused by anopheline mosquitoes that act as vectors of human malarias. One of the most important species is Anopheles gambiae s.s. Giles, distinctive for its strong preference for human blood and close association with human habitation. Host seeking and blood feeding of An. gambiae take place during the night. Physical cues, and, © 2007 Entomological Society of America 6 Corresponding author, willem.takken@wur.nl.. Europe PMC Funders GroupAuthor Manuscript J Med Entomol. Author manuscript; available in PMC 2013 November 07. Europe PMC Funders Author ManuscriptsEurope PMC Funders Author Manuscripts more importantly, chemical cues emanating from humans, mediate host-seeking behavior (Takken and Knols 1999). Gillies and Wilkes (1968) reported that CO 2 could attract mosquitoes to hosts at distances of 18-36 m and skin odors at distances of 54-73 m. Human skin odors were demonstrated to account for most of the attractiveness to An. gambiae (Costantini et al. 1996(Costantini et al. , 1998, whereas breath was shown to be only slightly attractive or even repellent , Mukabana et al. 2004. Evidence has accumulated that the variation of the attractiveness between human individuals to An. gambiae is odor mediated (Brady et al. 1997, Costantini et al. 1998, Mukabana 2002, Qiu et al. 2006b).Although hundreds of componen...

show abstract

Synthesis and Future Challenges: The Response of Mosquitoes to Host odours

Cited by 25 publications

References 29 publications

Mosquitoes and Culicoides biting midges: vector range and the influence of climate change

Mosquitoes and Culicoides biting midges: vector range and the influence of climate change

Identification and expression of odorant-binding proteins of the malaria-carrying mosquitoesAnopheles gambiae andAnopheles arabiensis

Attractiveness of MM-X Traps Baited with Human or Synthetic Odor to Mosquitoes (Diptera: Culicidae) in The Gambia

Contact Info

Product

Resources

About