Browsing Faculty of Natural and Agricultural Sciences by Author "25588427 - Verneau, Olivier"
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Alternative development in polystoma gallieni (platyhelminthes, monogenea) and life cycle evolution
Badets, Mathieu; Du Preez, Louis; Verneau, Olivier (ELSEVIER, 2013)Considering the addition of intermediate transmission steps during life cycle evolution, developmental plasticity, canalization forces and inherited parental effect must be invoked to explain new host colonization. Unf ... -
Assessment of platyhelminth diversity within amphibians of French Guiana revealed a new species of Nanopolystoma (Monogenea: Polystomatidae) in the caecilian Typhlonectes compressicauda
Du Preez, Louis H.; Badets, Mathieu; Verneau, Olivier (Praha : Academia, 2014)Scientists attending the First World Congress of Her-petology in 1989 first became concerned about a widespread decline in amphibian population numbers (Stuart et al. 2004). Since then, the number of studies and publications ... -
Demographic structure and genetic diversity of Mauremys leprosa in its northern range reveal new populations and a mixed origin
Palacios, Carmen; Du Preez, Louis; Verneau, Olivier; Urrutia, Cristina; Knapp, Nikolai (Deutsche Gesellschaft für Herpetologie und Terrarienkunde, 2015)Freshwater turtle species are still poorly understood, and many species are in decline due to unsustainable trade as well as human alteration and degradation of freshwater ecosystems. Mauremys leprosa is a freshwater ... -
Demonstrating the value and importance of combining DNA barcodes and discriminant morphological characters for polystome taxonomy (Platyhelminthes, Monogenea)
Héritier, Laurent; Verneau, Olivier; Coetzer, Carina; Du Preez, Louis H.; Smith, Kevin G. (Elsevier, 2018)Polystomes are monogenean parasites that infest mainly semi aquatic vertebrates, such as amphibians and chelonians. Owing to the lack of discriminative morphological characters and because polystomes are considered to be ... -
The dobule odyssey of Madagascan polystrome flatworms leads to new insights on the origins of their amphibian hosts
Verneau, Olivier; Laurent, Véronique; Raharivololoniaina, Liliane; Glaw, Frank; Vences, Miguel; Du Preez, Louis (Royal Society Publishing, 2009)Polystomatid flatworms are parasites of high host specificity, which mainly infect amphibian hosts. Only one polystome species has so far been recorded from Madagascar despite the high species richness and endemicity of ... -
The double odyssey of Madagascan polystome flatworms leads to new insights on the origins of their amphibian hosts
Du Preez, Louis H.; Verneau, Olivier; Laurent, Véronique; Raharivololoniaina, Liliane; Glaw, Frank (Royal Society Publishing, 2009)Polystomatid flatworms are parasites of high host specificity, which mainly infect amphibian hosts. Only one polystome species has so far been recorded from Madagascar despite the high species richness and endemicity of ... -
Evolutionary processes involved in the diversification of chelonian and mammal polystomatid parasites (Platyhelminthes, Monogenea, Polystomatidae) revealed by palaeoecology of their hosts
Héritier, Laurent; Verneau, Olivier; Du Preez, Louis H.; Badets, Mathieu; Aisien, Martins S.O. (Elsevier, 2015)Polystomatid flatworms (Platyhelminthes) are monogenean parasites that infect exclusively aquatic or semi-aquatic sarcopterygians such as the Australian lungfish, amphibians, freshwater turtles and the African common ... -
Eye to eye: classification of conjunctival sac polystomes (Monogenea: Polystomatidae) revisited with the description of three new genera Apaloneotrema n. g., Aussietrema n. g. and Fornixtrema n. g.
Du Preez, Louis H.; Verneau, Olivier (Springer, 2020)Polystomes (Monogenea: Polystomatidae) of freshwater turtles are currently represented by five genera, namely Neopolystoma, Polystomoides, Polystomoidella, Uropolystomoides and Uteropolystomoides. These parasites can infect ... -
First monogenean flatworm from a microhylid frog host: Kankana, a new polystome genus from Madagascar
Du Preez, Louis Heyns; Raharivololoniaina, Liliane; Verneau, Olivier; Berthier, Pauline; Vences, Miguel (Elsevier, 2011)Kankana manampoka n. gen., n. sp. (Monogenea, Polystomatidae), is described from the urinary bladder of the narrow-mouthed frog Platypelis pollicaris. This is the first record of a polystome from the Microhylidae and the ... -
First record of viviparity in polystomatid flatworms (Monogenea: Polystomatidae) with the description of two new species of Madapolystoma from the Madagascan anuran hosts Blommersia domerguei and Mantella expectata
Landman, Willem; Verneau, Olivier; Du Preez, Louis (Elsevier, 2018)Two frog species, Blommersia domerguei and Mantella expectata, are reported as hosts for new species of Madapolystoma. Phylogenetic analyses and genetic divergences observed in the genus supported the distinction of two ... -
The genetic diversity of blood parasites within the freshwater turtles Mauremys leprosa and Emys orbicularis in Tunisia reveals coinfection with Haemogregarina spp.
El-Hili, Rahma Attia; Verneau, Olivier; Achouri, Mohamed Sghaier (Springer, 2020)Haemogregarina species are apicomplexan blood parasites infecting vertebrates such as fish, lizards, and turtles. Due to the high morphological similarity of the erythrocytic stages infecting host species, it has always ... -
The high resolution melting analysis (HRM) as a molecular tool for monitoring parasites of the wildlife
Héritier, Laurent; Verneau, Olivier; Breuil, Gregory; Meistertzheim, Anne-Leila (Cambridge Univ Press, 2017)In an interconnected world, the international pet trade on wild animals is becoming increasingly important. As a consequence, non-native parasite species are introduced, which affect the health of wildlife and contribute ... -
Indopolystoma n. gen. (Monogenea, Polystomatidae) with the description of three new species and reassignment of eight known Polystoma species from Asian frogs (Anura, Rhacophoridae)
Chaabane, Amira; Verneau, Olivier; Du Preez, Louis (EDP Open, 2019)The polystomes (Monogenea, Polystomatidae) radiated across semi-aquatic tetrapods including all three amphibian orders, freshwater turtles and the hippopotamus. Prior to this study, phylogenetic analyses revealed that the ... -
Introduction and invasion of the red-eared slider and its parasites in freshwater ecosystems of Southern Europe: risk assessment for the European pond turtle in wild environments
Héritier, Laurent; Du Preez, Louis; Verneau, Olivier; Valdeón, Aitor; Sadaoui, Amel (Springer, 2017)The North American red-eared slider Trachemys scripta elegans, which is nowadays considered among the world’s worst invasive species, could constitute a real threat to native freshwater turtles. Because this species shares ... -
Lessons from parasitic flatworms about evolution and historical biogeography of their vertebrate hosts
Du Preez, Louis; Verneau, Olivier; Badets, Mathieu (Elsevier Masson SAS, 2009) -
Multicontamination phenomena occur more often than expected in Mediterranean coastal watercourses: study case of the Têt River (France)
Reoyo-Prats, Brice; Verneau, Olivier; Aubert, Dominique; Menniti, Christophe; Ludwig, Wolfgang (Elsevier, 2017)Contaminants found in watercourses are not only the result of anthropogenic activities but also depend on river's seasonal hydrodynamics. This is particularly true in Mediterranean climate regions where long dry periods ... -
A new genus of polystomatid parasitic flatworm (Monogenea: Polystomatidae) without free-swimming life stage from the Malagasy poison frogs
Du Preez, Louis Heyns; Raharivololoniaina, Liliane; Vences, Miguel; Verneau, Olivier (Magnolia Press, 2010) -
Oxidative stress biomarkers in the Mediterranean pond turtle (Mauremys leprosa) reveal contrasted aquatic environments in Southern France
Héritier, Laurent; Verneau, Olivier; Meistertzheim, Anne-Leila (Elsevier, 2017)Increasing anthropogenic activities, like agricultural practices, constitute the main causes of the loss of water quality and disruption of freshwater ecosystems. High concentrations of pesticides, as shown under experimental ... -
Oxidative stress induced by glyphosate-based herbicide on freshwater turtles
Héritier, Laurent; Verneau, Olivier; Duval, David; Galinier, Richard; Meistertzheim, Anne-Leila (SETAC, 2017)Freshwater ecosystems face very strong anthropogenic pressures, among which overexploitation, habitat degradation, flow modification, species invasion, and water pollution lead to growing threats on biodiversity. Urbanization ... -
Parasite host-switching from the invasive American red-eared slider, Trachemys scripta elegans, to the native Mediterranean pond turtle, Mauremys leprosa, in natural environments
Meyer, Leon; Du Preez, Louis; Verneau, Olivier; Bonneau, Elodie; Héritier, Laurent (REABIC, 2015)The red-eared slider turtle, Trachemys scripta elegans, is among the most over-exploited animals and is still exported annually from the USA all over the world. Once introduced into its new environment, feral populations ...