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| Takken, W.; Costantini, C.; Dolo, G.; Hassanali, A.; Sagnon, N.; Osir, E.. |
| Mating is one aspect of behaviour that has been much ignored in mosquito biology. Yet, the success of a transgenic release strategy depends on normal, competitive mating between introduced and wild individuals. An overview is presented of current knowledge of mating behaviour in Culicidae, including timing of mating, means of sperm transfer, refractory behaviour and multiple mating. Most lacunae were found in mate finding: it is known that some species use swarming while other mate on or near the vertebrate host. At short range males locate females by acoustic signals, but there is no knowledge how the sexes locate each other from a distance. It is argued that mass rearing of mosquitoes for sterile-insect release or transgenic release should include steps... |
| Tipo: Conference proceedings |
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| Ano: 2005 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1197 |
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| Takken, W.; Lindsay, S.W.. |
| Malaria transmission in Africa is without doubt governed by the existence of a group of highly efficient vectors, of which Anopheles gambiae Giles sensu stricto is predominant. The endophilic and anthropophagic behaviours of this mosquito create an intimate association between the human reservoir and insect vectors of malaria. In this paper several mosquito-related and environmental factors that modulate the transmission intensity of malaria in Africa are discussed, in order to illustrate the plasticity of the vectors’ responses to malaria interventions. The An. gambiae group of species serves as an example of the highly complex interactions between humans, malaria parasites and mosquitoes. Larval and adult characteristics are described that affect the... |
| Tipo: Conference proceedings |
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| Ano: 2004 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/842 |
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| Takken, W.; Dicke, M.. |
| Chemical information conveyance is an important phenomenon in the biology of plants and animals. This involves intraspecific chemical communication and its exploitation by heterospecific organisms. As a result food webs are overlaid with information webs that can have important consequences for community processes. A vast amount of research shows that both the emission of chemical information and the responses to it are often genetically controlled, and mediated by numerous interactions between an individual and its environment. Overall, it is argued that ecosystem functioning is much dependent on the responses of various community members to chemical cues, and that therefore knowledge on the chemical communication, from the genetic level to the ecosystem,... |
| Tipo: Conference proceedings |
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| Ano: 2006 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1206 |
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| Takken, W.; De Tarso R.Vilarinhos, P.; Schneider, P.; Dos Santos, F.. |
| Malaria is endemic in Brazil, affecting mostly the Amazon states. Whereas 50 years ago good progress was made towards its control, since the opening up of the Amazon region for forestry, agriculture and livestock activities, the disease has rapidly increased in incidence, peaking to >500,000 cases annually in the 1990s. Rondônia state was particularly hard hit, with thousands of new immigrants suffering malaria attacks. It is argued that the environmental change caused by deforestation has favoured the main malaria vector Anopheles darlingi, creating numerous sunlit larval habitats and bringing potential blood hosts in the vicinity of the mosquitoes. The creation of malaria clinics and strengthened control programmes has reduced the malaria situation,... |
| Tipo: Conference proceedings |
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| Ano: 2005 |
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/965 |
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