OXYUROIDS OF PALEARCTIC TESTUDINIDAE—NEW DEFINITION FOR<i>ALAEURIS</i>Seurat, 1918 (NEMATODA: PHARYNGODONIDAE) AND REDESCRIPTION OF<i>ALAEURIS NUMIDICA</i>(Seurat, 1918)

Bouamer, Salah; Morand, Serge; Bourgat, R.

doi:10.1645/0022-3395(2001)087[0128:ooptnd]2.0.co;2

Cited by 10 publications

(2 citation statements)

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“…Secondly, all collected adult oxyurids were washed in distilled water and subsequently stored in 70% ethanol. Thirdly, oxyurids were cleared in Amann lactophenol solution and subsequently identified to the species level following several keys (Petter, 1966; Bouamer & Morand, 2000, 2002, 2003, 2003a, 2003b, 2006; Bouamer, Morand & Bourgat, 2001a, 2001b; Bouamer, Morand & Kara, 2003). The number of Oxyuridae eggs and larvae present in the feces were not considered in this study because it was not possible to identify these immature stages to the species level (Traversa et al, 2005).…”

Section: Methodsmentioning

confidence: 99%

Impact of habitat loss on the diversity and structure of ecological networks between oxyurid nematodes and spur-thighed tortoises (Testudo graecaL.)

Benítez‐Malvido

Gimenez

Graciá

et al. 2019

PeerJ

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Habitat loss and fragmentation are recognized as affecting the nature of biotic interactions, although we still know little about such changes for reptilian herbivores and their hindgut nematodes, in which endosymbiont interactions could range from mutualistic to commensal and parasitic. We investigated the potential cost and benefit of endosymbiont interactions between the spur-thighed tortoise (Testudo graeca L.) and adult oxyurid nematodes (Pharyngodonidae order Oxyurida) in scrublands of southern Spain. For this, we assessed the association between richness and abundance of oxyurid species with tortoises’ growth rates and body traits (weight and carapace length) across levels of habitat loss (low, intermediate and high). Furthermore, by using an intrapopulation ecological network approach, we evaluated the structure and diversity of tortoise–oxyurid interactions by focusing on oxyurid species infesting individual tortoises with different body traits and growth rates across habitats. Overall, tortoise body traits were not related to oxyurid infestation across habitats. Oxyurid richness and abundance however, showed contrasting relationships with growth rates across levels of habitat loss. At low habitat loss, oxyurid infestation was positively associated with growth rates (suggesting a mutualistic oxyurid–tortoise relationship), but the association became negative at high habitat loss (suggesting a parasitic relationship). Furthermore, no relationship was observed when habitat loss was intermediate (suggesting a commensal relationship). The network analysis showed that the oxyurid community was not randomly assembled but significantly nested, revealing a structured pattern for all levels of habitat loss. The diversity of interactions was lowest at low habitat loss. The intermediate level, however, showed the greatest specialization, which indicates that individuals were infested by fewer oxyurids in this landscape, whereas at high habitat loss individuals were the most generalized hosts. Related to the latter, connectance was greatest at high habitat loss, reflecting a more uniform spread of interactions among oxyurid species. At an individual level, heavier and larger tortoises tended to show a greater number of oxyurid species interactions. We conclude that there is an association between habitat loss and the tortoise–oxyurid interaction. Although we cannot infer causality in their association, we hypothesize that such oxyurids could have negative, neutral and positive consequences for tortoise growth rates. Ecological network analysis can help in the understanding of the nature of such changes in tortoise–oxyurid interactions by showing how generalized or specialized such interactions are under different environmental conditions and how vulnerable endosymbiont interactions might be to further habitat loss.

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Section: Methodsmentioning

confidence: 99%

Impact of habitat loss on the diversity and structure of ecological networks between oxyurid nematodes and spur-thighed tortoises (Testudo graecaL.)

Benítez‐Malvido

Gimenez

Graciá

et al. 2019

PeerJ

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“…Three selected representative structures (spicule, tail, oesophagus) of all the preserved nematodes were measured by a photomicroscopy system (Leica EZ Camera 2.4.1) associated with specific morphometry software (LAS EZ 2.1.0). This information was compared to the morphological and morphometrical data reported in the scientific literature, which was carried out by two experts in Parasitology to maximise the objectivity of identification based on morphological keys (Bouamer et al, , 2001Bouamer and Morand, 2005, 2003Petter, 1966).…”

Section: Study Design and Parasitological Analysesmentioning

confidence: 99%

Assessing DESS solution for the long-term preservation of nematodes from faecal samples

Gonzálvez

Ybáñez

Rodríguez-Caro

et al. 2022

Research in Veterinary Science

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Descriptions of two new species of the genus Tachygonetria Wedl, 1862 (Nematoda-Pharyngodonidae) and discussion of the relationships among the species of the genus

Bouamer

Morand

2003

Parasitology Research

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Two species of pinworm, parasites of Testudo graeca Linneaus, 1758 from Morocco, are described: Tachygonetria poulini sp. nov. and Tachygonetria settatensis sp. nov. Light and scanning electron microscopy studies revealed morphological differences in the structure of the cephalic end in both sexes, as well as in the structure of the caudal end in the male, which enabled us to differentiate these species from others, and from each other. The relationships among the species of the genus Tachygonetria are discussed.

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OXYUROIDS OF PALEARCTIC TESTUDINIDAE—NEW DEFINITION FORALAEURISSeurat, 1918 (NEMATODA: PHARYNGODONIDAE) AND REDESCRIPTION OFALAEURIS NUMIDICA(Seurat, 1918)

Cited by 10 publications

References 9 publications

Impact of habitat loss on the diversity and structure of ecological networks between oxyurid nematodes and spur-thighed tortoises (Testudo graecaL.)

Impact of habitat loss on the diversity and structure of ecological networks between oxyurid nematodes and spur-thighed tortoises (Testudo graecaL.)

Assessing DESS solution for the long-term preservation of nematodes from faecal samples

Descriptions of two new species of the genus Tachygonetria Wedl, 1862 (Nematoda-Pharyngodonidae) and discussion of the relationships among the species of the genus

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