Comparative egg morphology of six Meccus species and Triatoma recurva (St ål, 1868) Hemiptera: Reduviidae
ABSTRACT
We investigated the morphology and morphometry of eggs from the colonies of the Entomology Laboratory at ENCB‐IPN belonging to six species of the genus Meccus and Triatoma recurva, using both light and scanning electron microscopy. Egg ornamentation is an important parameter to consider in the differentiation of species. Samples were observed under a scanning electron microscope. Measurements of fifty eggs per species included length, width, and opercular diameter, which were used for the morphometric analysis. The results showed that the seven species display a polygonal ornamentation dominated by hexagons; the...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Nancy Rivas, Esther S ánchez‐Espíndola, Alejandro D. Camacho, Ricardo Alejandre‐Aguilar Tags: Original Articles Source Type: research
Fine ‐scale distribution modeling of avian malaria vectors in north‐central Kansas
ABSTRACT
Infectious diseases increasingly play a role in the decline of wildlife populations. Vector‐borne diseases, in particular, have been implicated in mass mortality events and localized population declines are threatening some species with extinction. Transmission patterns for vector‐borne diseases are influenced by the spatial distribution of vectors and are therefore not uniform across the landscape. Avian malaria is a globally distributed vector‐borne disease that has been shown to affect endemic bird populations of North America. We evaluated shared habitat use between avian malaria vectors, mosquitoes in t...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Claudia Ganser, Andrew J. Gregory, Lance B. McNew, Lyla A. Hunt, Brett K. Sandercock, Samantha M. Wisely Tags: Original Articles Source Type: research
Diversity of rickettsial pathogens in Columbian black ‐tailed deer and their associated keds (Diptera: Hippoboscidae) and ticks (Acari: Ixodidae)
ABSTRACT
Cervids host multiple species of ixodid ticks, other ectoparasites, and a variety of rickettsiae. However, diagnostic test cross‐reactivity has precluded understanding the specific role of deer in rickettsial ecology. In our survey of 128 Columbian black‐tailed deer (Odocoileus hemionus columbianus (Richardson)) and their arthropod parasites from two northern Californian herds, combined with reports from the literature, we identified four distinct Anaplasma spp. and one Ehrlichia species. Two keds, Lipoptena depressa (Say) and Neolipoptena ferrisi Bequaert, and two ixodid ticks, Ixodes pacificus Cooley and Koh...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Janet E. Foley, Jeomhee M. Hasty, Robert S. Lane Tags: Original Articles Source Type: research
An effective sampling tool for adult crabhole inhabiting Deinocerites mosquitoes
(Source: Journal of Vector Ecology)
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Angie Betancourt, Jose R. Loaiza Tags: Scientific Note Source Type: research
The spread of Culex coronator (Diptera: Culicidae) throughout Florida
(Source: Journal of Vector Ecology)
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: C. Roxanne Connelly, Barry W. Alto, George F. O'Meara Tags: Scientific Note Source Type: research
A taxonomic checklist of the mosquitoes of Harris County, Texas
(Source: Journal of Vector Ecology)
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Martin Reyna Nava, Mustapha Debboun Tags: Scientific Note Source Type: research
Sand flies on Paraná River Islands and natural infection of Nyssomyia neivai by Leishmania in southern Brazil
(Source: Journal of Vector Ecology)
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Barbara Andreo dos Santos, Kárin Rosi Reinhold‐Castro, Edilson Colhera Cristóvão, Thaís Gomes Verzignassi Silveira, Ueslei Teodoro Tags: Scientific Note Source Type: research
Detection of African horse sickness virus in Culicoides imicola pools using RT‐qPCR
This study focused on detection of AHSV in Culicoides imicola (Diptera: Ceratopogonidae) pools by the application of a RT‐qPCR. Midges were fed on AHSV‐infected blood. A single blood‐engorged female was allocated to pools of unfed nulliparous female midges. Pool sizes varied from 1 to 200. RNA was extracted and prepared for RT‐qPCR. The virus was successfully detected and the optimal pool size for the limit of detection of the virus was determined at a range between 1 to 25. Results from this investigation highlight the need for a standardized protocol for AHSV investigation in Culicoides midges especially for comp...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Tania de Waal, Danica Liebenberg, Gert J Venter, Charlotte MS Mienie, Huib van Hamburg Tags: Original Articles Source Type: research
DNA‐based identification and OspC serotyping in cultures of Borrelia burgdorferi s.l. isolated from ticks collected in the Moravia (Czech Republic)
ABSTRACT
Two different genetic loci, flaB and ospC, were employed to assign genospecies and OspC phylogenetic type to 18 strains isolated from ticks collected in Pisárky, a suburban park in the city of Brno, Czech Republic. The RFLP analysis revealed three different genospecies (B. afzelii, B. garinii, and B. valaisiana). Three samples from the collection contained more than one genospecies. In the other 15 strains, nucleotide sequences of flaB and ospC were determined. The following phylogenetic analysis assigned 12 isolates to genospecies B. garinii and three to B. afzelii. These isolates were further subdivided into se...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Adam Norek, Lubomír Janda, Alena Žákovská Tags: Original Articles Source Type: research
Genetic and phenotypic variation in central and northern European populations of Aedes (Aedimorphus) vexans (Meigen, 1830) (Diptera, Culicidae)
ABSTRACT
The floodwater mosquito Aedes vexans can be a massive nuisance in the flood plain areas of mainland Europe, and is the vector of Tahyna virus and a potential vector of Dirofilaria immitis. This epidemiologically important species forms three subspecies worldwide, of which Aedes vexans arabiensis has a wide distribution in Europe and Africa. We quantified the genetic and phenotypic variation in Ae. vexans arabiensis in populations from Sweden (northern Europe), Hungary, and Serbia (central Europe). A landscape genetics approach (FST, STRUCTURE, BAPS, GENELAND) revealed significant differentiation between northern a...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Ljubinka Francuski, Vesna Milankov, Jasmina Ludoški, Bosiljka Krtinić, Jan O. Lundström, Gábor Kemenesi, Jakab Ferenc Tags: Original Articles Source Type: research
Distribution pattern and genetic structure of Aedes zammitii (Diptera: Culicidae) along the Mediterranean and Aegean coasts of Turkey
ABSTRACT
The Mariae species complex, consisting of Aedes mariae, Aedes phoeniciae, and Aedes zammitii, has a limited distribution worldwide. All three species are found in rocky habitats on the coastal areas of Mediterranean countries. Aedes phoeniciae and Ae. zammitii are two members of the Mariae complex that exist in Turkey. The aim of this study was to determine the distribution pattern and genetic structure of Ae. zammitii along the Mediterranean and Aegean regions. For this purpose, larval and adult samples of Ae. zammitii were collected from 19 different rocky habitats along the coastal regions of Antalya, Muğla, A...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Sare Ilknur Yavasoglu, Fatih Mehmet Simsek, Celal Ulger Tags: Original Articles Source Type: research
Effects of diapause and cold acclimation on egg ultrastructure: new insights into the cold hardiness mechanisms of the Asian tiger mosquito Aedes (Stegomyia) albopictus
ABSTRACT
The Asian tiger mosquito, Aedes albopictus (Diptera: Culicidae, SKUSE), is an important threat to public health due to its rapid spread and its potential as a vector. The eggs of Ae. albopictus are the most cold resistant life stage and thus, the cold hardiness of eggs is used to predict the future occurrence of the species in distribution models. However, the mechanism of cold hardiness has yet to be revealed. To address this question, we analyzed the layers of diapausing and cold acclimatized eggs of a temperate population of Ae. albopictus in a full factorial test design using transmission electron microscopy. ...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Aljoscha Kreß, Ulrich Kuch, Jörg Oehlmann, Ruth Müller Tags: Original Articles Source Type: research
Comparative egg morphology of six Meccus species and Triatoma recurva (Stål, 1868) Hemiptera: Reduviidae
ABSTRACT
We investigated the morphology and morphometry of eggs from the colonies of the Entomology Laboratory at ENCB‐IPN belonging to six species of the genus Meccus and Triatoma recurva, using both light and scanning electron microscopy. Egg ornamentation is an important parameter to consider in the differentiation of species. Samples were observed under a scanning electron microscope. Measurements of fifty eggs per species included length, width, and opercular diameter, which were used for the morphometric analysis. The results showed that the seven species display a polygonal ornamentation dominated by hexagons; the...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Nancy Rivas, Esther Sánchez‐Espíndola, Alejandro D. Camacho, Ricardo Alejandre‐Aguilar Tags: Original Articles Source Type: research
Hyalomma ticks on northward migrating birds in southern Spain: Implications for the risk of entry of Crimean‐Congo haemorrhagic fever virus to Great Britain
In this study, a total of 12 Hyalomma ticks were recovered from five of 228 migratory birds trapped in Spring, 2012 in southern Spain along the East Atlantic flyway. All collected ticks tested negative for CCHFV. While most birds had zero Hyalomma ticks, two individuals had four and five ticks each and the statistical distribution of Hyalomma tick counts per bird is over‐dispersed compared to the Poisson distribution, demonstrating the need for intensive sampling studies to avoid underestimating the total number of ticks. Rates of tick exchange on migratory birds during their northwards migration will affect the probabil...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Marion E. England, Paul Phipps, Jolyon M. Medlock, Peter M. Atkinson, Barry Atkinson, Roger Hewson, Paul Gale Tags: Original Articles Source Type: research
Bioinsecticide and leaf litter combination increases oviposition and reduces adult recruitment to create an effective ovitrap for Culex mosquitoes
ABSTRACT
Mosquito egg traps, aquatic habitats baited with oviposition attractant and insecticide, are important tools for surveillance and control efforts in integrated vector management programs. The bioinsecticide Bacillus thuringiensis subsp. israelensis (Bti) is increasingly used as an environmentally friendly alternative to chemical insecticides and the combination of Bti with a simple oviposition attractant like leaf litter to create an effective egg trap seems appealing. However, previous research suggests that Bti may itself alter oviposition, and that leaf litter may dramatically reduce Bti toxicity. Here we prese...
Source: Journal of Vector Ecology - May 26, 2016 Category: Biology Authors: Katie G. Bellile, James R. Vonesh Tags: Original Articles Source Type: research
