scholarly journals The first pilot study of black fly (Diptera: Simuliidae) breeding sites in Moldova

2019 ◽  
Author(s):  
Alexandr Vasiliev ◽  
◽  
Tatiana Sulesco ◽  
Keyword(s):  
Pilot Study ◽  
Modern Literature ◽  
Immature Stages ◽  
Black Flies ◽  
River Section ◽  
Cross Sectional ◽  
Black Fly ◽  
Breeding Sites ◽  
Entomological Survey ◽  
First Time

The data on black fly fauna in Moldova are absent in the old and modern literature. Overall, 45 black fly species from the genera Prosimulium (four species) and Simulium (41 species) are common both for Romania and Ukraine and expected to be present in Moldova. For the first time cross-sectional entomological survey was conducted in 2018 to detect the breeding sites of Simuliidae in Moldova. Productive breeding sites of black flies were identified in the creek close to the Dniester River section located in Vascauti village, Racovat River sections located in Branzeni and Burlanesti villages. Immature stages of black flies also have been found in the small creeks in Chisinau and Duruitoarea Veche.

scholarly journals Society Islands beach bum black flies (Diptera: Simuliidae) 

Zootaxa ◽  
2017 ◽  
Vol 4311 (3) ◽  
pp. 373
Author(s):  
DOUGLAS A. CRAIG ◽  
NEAL L. EVENHUIS
Keyword(s):  
The Body ◽  
Western Pacific ◽  
Immature Stages ◽  
Black Flies ◽  
Black Fly ◽  
Society Islands

Aspects of the body of work on the Central and Western Pacific black fly Simulium (Inseliellum) are briefly reviewed. Female adults collected from beaches in Tahiti and Raiatea are described as Simulium (Inseliellum) littopyga n. sp., Simulium (Inseliellum) littosocius n. sp. and Simulium (Inseliellum) littosodalis n. sp.. Immature stages of the three species are not associated. 

SUPPRESSION OF BLACK FLY POPULATIONS IN DEEP RIVER, ONTARIO

1977 ◽  
Vol 109 (2) ◽  
pp. 249-254 ◽  
Author(s):  
W. F. Baldwin ◽  
H. P. Gross ◽  
M. L. Wilson ◽  
D. J. Keill ◽  
R. J. Stuart ◽  
...  
Keyword(s):  
Snow Cover ◽  
Critical Period ◽  
Black Flies ◽  
Black Fly ◽  
Breeding Sites ◽  
The Past ◽  
Stream Management ◽  
The Town ◽  
Very High ◽  
Preceding Winter

AbstractData from black fly traps in Deep River over the past 5 years indicate that larvicides applied to breeding sites in streams surrounding the town have substantially reduced the numbers of this pest. Very high numbers occurred in 1972, the result of invasion associated with high westerly and northerly winds at a critical period of time or with heavy protective snow cover during the preceding winter. The lowest population levels occurred in 1975, when treatment included a stream near the town which had not been treated previously. The results indicate that with proper stream management it is possible to substantially reduce the nuisance value of black flies in a small northern town.

BLACK FLIES (DIPTERA: SIMULIIDAE) OF IRRIGATION SYSTEMS IN SASKATCHEWAN AND ALBERTA

1960 ◽  
Vol 38 (4) ◽  
pp. 723-735 ◽  
Author(s):  
F. J. H. Fredeen ◽  
J. A. Shemanchuk
Keyword(s):  
Aquatic Vegetation ◽  
Larval Abundance ◽  
Immature Stages ◽  
Black Flies ◽  
Irrigation Systems ◽  
Breeding Sites ◽  
Attachment Sites ◽  
Rivers And Streams ◽  
Irrigated Crops ◽  
Gravid Females

The immature stages of Simulium villatum Zett., venustum Say, meridionale Riley, tuberosum Lund., decorum Walk., bivittatum Mall., griseum Coq., arcticum Mall., and aureum Fries, in decreasing order of abundance, occurred in 79% of 341 collections from 69 irrigation canals and 18 adjacent rivers and streams in irrigated areas of southern Saskatchewan and Alberta in the years 1950 to 1958. Canals less than 4 years old were infested despite a scarcity of aquatic vegetation which formed the main attachment sites. Factors reducing larval abundance included interruption of flow, lack of food and attachment sites, parasites, invertebrate and vertebrate predators, and possibly insecticides from irrigated crops. In some canals up to 100% of the larvae of S. vittatum were infected with nematodes, Hydromermis sp., which prevented pupation. Other larvae were infected with microsporidia. Most canals were dry in the winter. Larvae of only S. vittatum overwintered in two canals which flowed all winter; no viable overwintered eggs of any species were found in any canals. It is presumed that canals are reinfested each spring by gravid females immigrating from permanent breeding sites, mainly in the larger streams and rivers. Although black flies, especially S. vittatum, were occasionally abundant and all are blood feeders, they were generally less of a nuisance than mosquitoes. Leucocytozoon occasionally occurred in turkeys.

Classification, annotated list and keys for the black flies (Diptera: Simuliidae) of Peninsular Malaysia

Zootaxa ◽  
2018 ◽  
Vol 4498 (1) ◽  
pp. 1 ◽  
Author(s):  
HIROYUKI TAKAOKA ◽  
ZUBAIDAH YA’COB ◽  
MOHD SOFIAN-AZIRUN
Keyword(s):  
Morphological Characteristics ◽  
Species Group ◽  
Peninsular Malaysia ◽  
Black Flies ◽  
Black Fly ◽  
Annotated List ◽  
Species Groups ◽  
First Time ◽  
A New Species ◽  
Male Pupa

The classification, annotated list and keys for the black fly species from Peninsular Malaysia are updated. The number of black fly species increased from 38 in 1995 to 62 (including a new species herein described) in 2018. The 62 species are classified in four subgenera of the genus Simulium: one species in Daviesellum, 35 species in Gomphostilbia, five species in Nevermannia and 21 species in Simulium. Species in the latter three subgenera are further placed in species-groups or subgroups. Keys are provided for females, males, pupae and mature larvae. Simulium (S.) perakense sp. nov. is described and placed in the S. striatum species-group. The males of S. (G.) decuplum, S. (G.) tahanense, S. (S.) malayense, the female of S. (G.) adleri, and the female and larva of S. (G.) varicorne are described for the first time. The female, male, pupa and larva of S. (G.) trangense, the male and pupa of S. (G.) varicorne and the pupa of S. (G.) adleri are redescribed. Simulium (G.) sp. A is identified as S. (G.) pegalanense. Brief notes for each species are given on morphological characteristics, aquatic habitats and geographical distributions. 

scholarly journals Breeding Sites ofAedes aegypti: Potential Dengue Vectors in Dire Dawa, East Ethiopia

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Dejene Getachew ◽  
Habte Tekie ◽  
Teshome Gebre-Michael ◽  
Meshesha Balkew ◽  
Akalu Mesfin
Keyword(s):  
Aedes Aegypti ◽  
Immature Stage ◽  
Mosquito Larvae ◽  
Cross Sectional ◽  
Breeding Sites ◽  
Entomological Survey ◽  
Wide Range ◽  
Dire Dawa ◽  
Dengue Vectors ◽  
Artificial Water

Background and Objectives. Entomological survey was carried out from May-June to September-October 2014 to investigate the presence of dengue vectors in discarded tires and artificial water containers in houses and peridomestic areas.Methods. A cross-sectional immature stage survey was done indoors and outdoors in 301 houses. Mosquito larval sampling was conducted using pipette or dipper depending on container types. Larvae were identified morphologically and larval indices were also calculated.Results. A total of 750 containers were inspected, and of these 405 were positive for mosquito larvae. A total of 1,873 larvae were collected and morphologically identified asAedes aegypti(n=1580: 84.4%) andCulex(n=293: 15.6%). The larval indices, house index, container index, and breteau index, varied from 33.3 to 86.2, from 23.2 to 73.9, and from 56.5 to 188.9, respectively.Conclusion.Aedes aegyptiis breeding in a wide range of artificial containers. To control these mosquitoes, the integration of different methods should be taken into consideration.

Psychological Resilience Provides No Independent Protection From Suicidal Risk

Crisis ◽  
2016 ◽  
Vol 37 (2) ◽  
pp. 130-139 ◽  
Author(s):  
Danica W. Y. Liu ◽  
A. Kate Fairweather-Schmidt ◽  
Richard Burns ◽  
Rachel M. Roberts ◽  
Kaarin J. Anstey
Keyword(s):  
Risk Factors ◽  
Well Being ◽  
Current Status ◽  
Psychological Resilience ◽  
Cross Sectional ◽  
Life Project ◽  
Resilience Factors ◽  
First Time

Abstract. Background: Little is known about the role of resilience in the likelihood of suicidal ideation (SI) over time. Aims: We examined the association between resilience and SI in a young-adult cohort over 4 years. Our objectives were to determine whether resilience was associated with SI at follow-up or, conversely, whether SI was associated with lowered resilience at follow-up. Method: Participants were selected from the Personality and Total Health (PATH) Through Life Project from Canberra and Queanbeyan, Australia, aged 28–32 years at the first time point and 32–36 at the second. Multinomial, linear, and binary regression analyses explored the association between resilience and SI over two time points. Models were adjusted for suicidality risk factors. Results: While unadjusted analyses identified associations between resilience and SI, these effects were fully explained by the inclusion of other suicidality risk factors. Conclusion: Despite strong cross-sectional associations, resilience and SI appear to be unrelated in a longitudinal context, once risk/resilience factors are controlled for. As independent indicators of psychological well-being, suicidality and resilience are essential if current status is to be captured. However, the addition of other factors (e.g., support, mastery) makes this association tenuous. Consequently, resilience per se may not be protective of SI.

GAMBARAN INDEKS LARVA AEDES AEGYPTI DI BUFFER WILAYAH KERJA BANDARA SEPINGGAN BALIKPAPAN

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Abdurrakhman abdurrakhman Abdurrakhman
Keyword(s):  
Aedes Aegypti ◽  
Buffer Zone ◽  
Chi Square ◽  
Cross Sectional ◽  
Breeding Sites ◽  
Dengue Disease ◽  
Vector Borne Diseases ◽  
Transportation Equipment ◽  
Chi Square Test ◽  
Larvae Density

ABSTRACT : The House index and Container Index in the buffer area of ​​the working area of ​​Balikpapan Sepinggan Airport is still above 1%, so the potential for the spread of dengue disease. Mobilization of people, goods and transportation equipment will increasingly affect the transmission of disease in ports and airports, especially for vector-borne diseases. This study aims to analyze the risk factors associated with larvae density of Aedes aegypti and describe the larvae index in the buffer zone of the Sepinggan Balikpapan Airport This study was a descriptive study with a cross sectional design. The sample in this study was 121 houses with a proportionate stratified random sampling, the research location was in the buffer zone of Sepinggan Balikpapan Airport in November 2018. The variables studied were houses with positive larvae containers, breeding sites and PSN behavior and larvasidation. The data was analyzed using the chi square test. There was a relationship between houses with larvae positive Aedes aegypti, behavior of Mosquito Nest Eradication (PSN) and larvasidation with larvae density of Aedes aegypti but not for breeding sites (p = 0.00 and 95% CI = 0.64), and   (p = 0.00 and 95% CI = 0.34). The description of several Aedes aegypti larvae index, namely House Index (HI) = 57.02%, Container Index (CI) = 24.36%, Bruteau Index (BI) = 148.76, and Flick Free Numbers (ABJ) = 42.98 %. Houses with larvae of Aedes aegypti larvae and PSN and larvasidation behavior were associated with larvae density of Aedes aegypti. The index of HI, CI and BI larvae is of high value so there is a risk of DBD transmission

Mother's MILK Messaging: A PILOT Study of an APP to Support Breastfeeding in First Time Mothers

PEDIATRICS ◽  
2016 ◽  
Vol 137 (Supplement 3) ◽  
pp. 218A-218A ◽  
Author(s):  
Maya Bunik ◽  
Jennifer Leifermann ◽  
Jessica R. Ryan ◽  
Anna Furniss ◽  
Sheana Bull
Keyword(s):  
Pilot Study ◽  
First Time Mothers ◽  
Mother's Milk ◽  
Mother’S Milk ◽  
First Time
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