scholarly journals Carryover effects of larval exposure to different environmental bacteria drive adult trait variation in a mosquito vector

2017 ◽  
Vol 3 (8) ◽  
pp. e1700585 ◽  
Author(s):  
Laura B. Dickson ◽  
Davy Jiolle ◽  
Guillaume Minard ◽  
Isabelle Moltini-Conclois ◽  
Stevenn Volant ◽  
...  
2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Sardjito Eko Windarso dkk

The increasing of malaria cases in recent years at Kecamatan Kalibawang has been suspected correspond with the conversion of farming land-use which initiated in 1993. Four years after the natural vegetation in this area were changed become cocoa and coffee commercial farming estates, the number of malaria cases in 1997 rose more than six times, and in 2000 it reached 6085. This study were aimed to observe whether there were any differences in density and diversity of Anopheles as malaria vector between the cocoa and mix farming during dry and rainy seasons. The results of the study are useful for considering the appropriate methods, times and places for mosquito vector controlling. The study activities comprised of collecting Anopheles as well as identifying the species to determine the density and diversity of the malaria vector. Both activities were held four weeks in dry season and four weeks in rainy season. The mea-surement of physical factors such as temperature, humidity and rainfall were also conducted to support the study results. Four dusuns which meet the criteria and had the highest malaria cases were selected as study location. Descriptively, the results shows that the number of collected Anopheles in cocoa farming were higher compared with those in mix horticultural farming; and the number of Anopheles species identifi ed in cocoa farming were also more varied than those in the mix horticultural farming.Key words: bionomik vektor malaria, anopheles,


2019 ◽  
Author(s):  
Annika Karinen ◽  
Joshua M. Tybur ◽  
Reinout E. de Vries

A broad literature indicates that pathogen, sexual, and moral disgust sensitivity relate to, among other things, political attitudes, moral condemnation, and symptoms of psychopathology. As such, instruments measuring disgust sensitivity have been widely used across subfields of psychology. Yet, surprisingly little work has examined whether self-reports in disgust sensitivity reflect systematic trait variation. Here, we present the first study to examine self-other agreement in pathogen, sexual, and moral disgust sensitivity. Romantic partners (n1 = 290), friends (n2 = 212) and acquaintances (n3 = 140) rated each other on these three domains of disgust sensitivity and on the HEXACO personality dimensions. Correlations between dyad partners’ self- and other-ratings were calculated to estimate the magnitude of self-other agreement. We found self-other agreement in all domains of disgust sensitivity (r’s of .36, .46, and .66 for moral, pathogen, and sexual disgust sensitivity, respectively), with this agreement only slightly inferred from personality perceptions (percentages mediated by HEXACO were 15%, 7%, and 33% for pathogen, sexual, and moral disgust sensitivity, respectively). These results suggest that pathogen, sexual, and moral disgust sensitivity reflect systematic trait variation that is detectable by others and distinct from broader personality traits.


2019 ◽  
Vol 146 (3) ◽  
pp. 166
Author(s):  
Tracy S. Hawkins ◽  
Craig S. Echt ◽  
Margaret S. Devall ◽  
Paul B. Hamel ◽  
A. Dan Wilson ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
pp. 67-77
Author(s):  
Amos Watentena ◽  
Ikem Chris Okoye ◽  
Ikechukwu Eugene Onah ◽  
Onwude Cosmas Ogbonnaya ◽  
Emmanuel Ogudu

Mosquitoes of Aedes species are vectors of several arboviral diseases which continue to be a major public health problem in Nigeria. This study among other things, morphologically identified Aedes mosquitoes collected from Nsukka LGA and used an allele specific PCR amplification for discrimination of dengue vectors. Larval sampling, BG-sentinel traps and modified human landing catches were used for mosquito sampling in two selected autonomous communities of Nsukka LGA (Nsukka and Obimo). A total of 124 Aedes mosquitoes consisting of five (5) different species were collected from April to June, 2019 in a cross-sectional study that covered 126 households, under 76 distinct geographical coordinates. Larvae was mainly collected from plastic containers 73% (n=224), metallic containers 14% (n=43), earthen pots 9% (n=29) and used car tyres 3% (n=9), reared to adult stage 69.35% (n=86), and all mosquitoes were identified using standard morphological keys. Five (5) Aedes mosquito species were captured; Aedes aegypti 83(66.94%), Aedes albopictus 33(26.61%), Aedes simpsoni (4.48%), Aedes luteocephalus (≤1%) and Aedes vittatus (≤1%). Nsukka autonomous community had higher species diversity than Obimo. Allele specific amplification confirmed dengue vectors, Aedes aegypti and Aedes albopictus species on a 2% agarose gel. Since the most recent re-emergence of arboviral diseases is closely associated with Aedes species, findings of this study, therefore, give further evidence about the presence of potential arboviral vectors in Nigeria and describe the role of a simple PCR in discriminating some. Further entomological studies should integrate PCR assays in mosquito vector surveillance.


2004 ◽  
Author(s):  
Milton E. Teske ◽  
Harold W. Thistle ◽  
Mark Latham ◽  
William H. Reynolds

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