The Experts below are selected from a list of 501 Experts worldwide ranked by ideXlab platform

Richard W. Merritt - One of the best experts on this subject based on the ideXlab platform.

  • aquatic invertebrates as unlikely vectors of buruli ulcer disease
    Emerging Infectious Diseases, 2008
    Co-Authors: Eric M Benbow, Heather Williamson, Ryan Kimbirauskas, Mollie D. Mcintosh, Rebecca E. Kolar, Charles Quaye, Felix Akpabey, Daniel A. Boakye, Pamela L. C. Small, Richard W. Merritt
    Abstract:

    Buruli ulcer is a necrotizing skin disease caused by Mycobacterium ulcerans and associated with exposure to aquatic habitats. To assess possible transmission of M. ulcerans by aquatic biting insects, we conducted a field examination of biting water bugs (Hemiptera: Naucoridae, Belostomatidae, Nepidae) in 15 disease-endemic and 12 non–disease-endemic areas of Ghana, Africa. From collections of 22,832 invertebrates, we compared composition, abundance, and associated M. ulcerans positivity among sites. Biting hemipterans were rare and represented a small percentage (usually <2%) of invertebrate communities. No significant differences were found in hemipteran abundance or pathogen positivity between disease-endemic and non–disease-endemic sites, and between abundance of biting hemipterans and M. ulcerans positivity. Therefore, although infection through insect bites is possible, little field evidence supports the assumption that biting hemipterans are primary vectors of M. ulcerans.

  • Aquatic invertebrates as unlikely vectors of Buruli ulcer disease.
    Emerging infectious diseases, 2008
    Co-Authors: M. Eric Benbow, Heather Williamson, Ryan Kimbirauskas, Mollie D. Mcintosh, Rebecca E. Kolar, Charles Quaye, Felix Akpabey, Daniel A. Boakye, Pamela L. C. Small, Richard W. Merritt
    Abstract:

    Buruli ulcer is a necrotizing skin disease caused by Mycobacterium ulcerans and associated with exposure to aquatic habitats. To assess possible transmission of M. ulcerans by aquatic biting insects, we conducted a field examination of biting water bugs (Hemiptera: Naucoridae, Belostomatidae, Nepidae) in 15 disease-endemic and 12 non–disease-endemic areas of Ghana, Africa. From collections of 22,832 invertebrates, we compared composition, abundance, and associated M. ulcerans positivity among sites. Biting hemipterans were rare and represented a small percentage (usually

Lubomir Masner - One of the best experts on this subject based on the ideXlab platform.

  • The Genus Thoron Haliday (Hymenoptera: Scelionidae), Egg-Parasitoids of Waterscorpions (Hemiptera: Nepidae), with Key to World Species
    American Museum Novitates, 2004
    Co-Authors: Norman F. Johnson, Lubomir Masner
    Abstract:

    The world fauna of the genus Thoron is revised. The genus is described and Neothoron Masner is treated as a junior synonym (new synonymy). Relationships with Elgonia Risbec and other Scelionidae are discussed and a key to world species is presented. Six new species are described: T. dayi, new species (Indonesia), T. dux, new species (Bolivia, Venezuela), T. garciai, new species (Venezuela, Bolivia), T. rex, new species (Bolivia), Thoron rivalis, new species (Brazil, Panama), and T. spinifer, new species (Ecuador). Thoron metallicus Haliday (Holarctic), T. longicornis Masner and Huggert (USA), and T. lautus (Masner), new combination (Ecuador, Bolivia) are redescribed; the female of T. lautus and the male of T. longicornis are described and keyed for the first time. Thoron gibbus Ruthe is treated as a junior synonym of T. metallicus (new synonymy). Species of Thoron are only known to parasitize the eggs of Nepidae (Hemiptera: Heteroptera) with rearings from Nepa Linnaeus and association with

  • The genus Thoron Haliday (Hymenoptera: Scelionidae), egg–parasitoids of waterscorpions (Hemiptera: Nepidae), with key to world species
    2004
    Co-Authors: Norman F. Johnson, Lubomir Masner
    Abstract:

    The world fauna of the genus Thoron is revised. The genus is described and Neothoron Masner is treated as a junior synonym (new synonymy). Relationships with Elgonia Risbec and other Scelionidae are discussed and a key to world species is presented. Six new species are described: T. dayi, new species (Indonesia), T. dux, new species (Bolivia, Venezuela), T. garciai, new species (Venezuela, Bolivia), T. rex, new species (Bolivia), Thoron rivalis, new species (Brazil, Panama), and T. spinifer, new species (Ecuador). Thoron metallicus Haliday (Holarctic), T. longicornis Masner and Huggert (USA), and T. lautus (Masner), new combi-nation (Ecuador, Bolivia) are redescribed; the female of T. lautus and the male of T. longicornis are described and keyed for the first time. Thoron gibbus Ruthe is treated as a junior synonym of T. metallicus (new synonymy). Species of Thoron are only known to parasitize the eggs of Nepidae (Hemiptera: Heteroptera) with rearings from Nepa Linnaeus and association with Curicta Stål; apparently the genus Ranatra Fabricius is not a host

Philippe Le-gall - One of the best experts on this subject based on the ideXlab platform.

  • Survey of Water Bugs in Bankim, a New Buruli Ulcer Endemic Area in Cameroon
    Journal of tropical medicine, 2012
    Co-Authors: Solange Meyin A. Ebong, Sara Eyangoh, Estelle Marion, Jordi Landier, Laurent Marsollier, Jean-françois Guégan, Philippe Le-gall
    Abstract:

    Buruli ulcer is a debitliating human skin disease with an unknown transmission mode although epidemiological data link it with swampy areas. Data available suggest that aquatic insects play a role in the dissemination and/or transmission of this disease. However, their biodiversity and biology remain poorly documented. We conducted an entomological survey in Bankim, Cameroon, an area recently described as endemic for Buruli ulcer in order to identify the commonly occurring aquatic bugs and document their relative abundance, diversity, and spatial distribution. Collection of aquatic bugs was realized over a period of one month by daily direct capture in different aquatic environments (streams, ponds, and rivers) and through light traps at night. Globally, the data obtained showed the presence of five families (Belostomatidae, Naucoridae, Nepidae, Notonectidae, and Gerridae), their abundance, distribution and diversity varying according to the type of aquatic environments and light attraction.

Norman F. Johnson - One of the best experts on this subject based on the ideXlab platform.

  • The Genus Thoron Haliday (Hymenoptera: Scelionidae), Egg-Parasitoids of Waterscorpions (Hemiptera: Nepidae), with Key to World Species
    American Museum Novitates, 2004
    Co-Authors: Norman F. Johnson, Lubomir Masner
    Abstract:

    The world fauna of the genus Thoron is revised. The genus is described and Neothoron Masner is treated as a junior synonym (new synonymy). Relationships with Elgonia Risbec and other Scelionidae are discussed and a key to world species is presented. Six new species are described: T. dayi, new species (Indonesia), T. dux, new species (Bolivia, Venezuela), T. garciai, new species (Venezuela, Bolivia), T. rex, new species (Bolivia), Thoron rivalis, new species (Brazil, Panama), and T. spinifer, new species (Ecuador). Thoron metallicus Haliday (Holarctic), T. longicornis Masner and Huggert (USA), and T. lautus (Masner), new combination (Ecuador, Bolivia) are redescribed; the female of T. lautus and the male of T. longicornis are described and keyed for the first time. Thoron gibbus Ruthe is treated as a junior synonym of T. metallicus (new synonymy). Species of Thoron are only known to parasitize the eggs of Nepidae (Hemiptera: Heteroptera) with rearings from Nepa Linnaeus and association with

  • The genus Thoron Haliday (Hymenoptera: Scelionidae), egg–parasitoids of waterscorpions (Hemiptera: Nepidae), with key to world species
    2004
    Co-Authors: Norman F. Johnson, Lubomir Masner
    Abstract:

    The world fauna of the genus Thoron is revised. The genus is described and Neothoron Masner is treated as a junior synonym (new synonymy). Relationships with Elgonia Risbec and other Scelionidae are discussed and a key to world species is presented. Six new species are described: T. dayi, new species (Indonesia), T. dux, new species (Bolivia, Venezuela), T. garciai, new species (Venezuela, Bolivia), T. rex, new species (Bolivia), Thoron rivalis, new species (Brazil, Panama), and T. spinifer, new species (Ecuador). Thoron metallicus Haliday (Holarctic), T. longicornis Masner and Huggert (USA), and T. lautus (Masner), new combi-nation (Ecuador, Bolivia) are redescribed; the female of T. lautus and the male of T. longicornis are described and keyed for the first time. Thoron gibbus Ruthe is treated as a junior synonym of T. metallicus (new synonymy). Species of Thoron are only known to parasitize the eggs of Nepidae (Hemiptera: Heteroptera) with rearings from Nepa Linnaeus and association with Curicta Stål; apparently the genus Ranatra Fabricius is not a host

Rebecca E. Kolar - One of the best experts on this subject based on the ideXlab platform.

  • aquatic invertebrates as unlikely vectors of buruli ulcer disease
    Emerging Infectious Diseases, 2008
    Co-Authors: Eric M Benbow, Heather Williamson, Ryan Kimbirauskas, Mollie D. Mcintosh, Rebecca E. Kolar, Charles Quaye, Felix Akpabey, Daniel A. Boakye, Pamela L. C. Small, Richard W. Merritt
    Abstract:

    Buruli ulcer is a necrotizing skin disease caused by Mycobacterium ulcerans and associated with exposure to aquatic habitats. To assess possible transmission of M. ulcerans by aquatic biting insects, we conducted a field examination of biting water bugs (Hemiptera: Naucoridae, Belostomatidae, Nepidae) in 15 disease-endemic and 12 non–disease-endemic areas of Ghana, Africa. From collections of 22,832 invertebrates, we compared composition, abundance, and associated M. ulcerans positivity among sites. Biting hemipterans were rare and represented a small percentage (usually <2%) of invertebrate communities. No significant differences were found in hemipteran abundance or pathogen positivity between disease-endemic and non–disease-endemic sites, and between abundance of biting hemipterans and M. ulcerans positivity. Therefore, although infection through insect bites is possible, little field evidence supports the assumption that biting hemipterans are primary vectors of M. ulcerans.

  • Aquatic invertebrates as unlikely vectors of Buruli ulcer disease.
    Emerging infectious diseases, 2008
    Co-Authors: M. Eric Benbow, Heather Williamson, Ryan Kimbirauskas, Mollie D. Mcintosh, Rebecca E. Kolar, Charles Quaye, Felix Akpabey, Daniel A. Boakye, Pamela L. C. Small, Richard W. Merritt
    Abstract:

    Buruli ulcer is a necrotizing skin disease caused by Mycobacterium ulcerans and associated with exposure to aquatic habitats. To assess possible transmission of M. ulcerans by aquatic biting insects, we conducted a field examination of biting water bugs (Hemiptera: Naucoridae, Belostomatidae, Nepidae) in 15 disease-endemic and 12 non–disease-endemic areas of Ghana, Africa. From collections of 22,832 invertebrates, we compared composition, abundance, and associated M. ulcerans positivity among sites. Biting hemipterans were rare and represented a small percentage (usually