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1. A new species of Litomosoides (Nematoda: Onchocercidae), parasite of Nectomys palmipes (Rodentia: Cricetidae: Sigmodontinae) from Venezuela: description, molecular evidence, Wolbachia pipientis screening

Creator:
Guerrero, Ricardo, Bain, Odile, Martin, Coralie, and Barbuto, Michela
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Litomosoides, Onchocercidae, integrative taxonomy, and Wolbachia screening
Language:
English
Description:
The onchocercid filaria Litomosoides taylori sp. n. is described from the sigmodontine cricetid Nectomys palmipes Allen et Chapman in northeast Venezuela. A voucher specimen of the new species was used for molecular analysis of the coxI and 12S rDNA genes, and screened for the presence of the endobacterium Wolbachia pipientis. Litomosoides taylori belongs to the ''sigmodontis group'' of Litomosoides and a combination of characters can be used to distinguish it from the remaining 18 species forming this group. Among the five Nectomys species, all living near running water, N. squamipes also harbours Litomosoides species, L. khonae in Brazil and L. navonae in Argentina. These three Litomosoides species of the ''sigmodontis group'' do not share any particular characters. Gene sequences of L. taylori differ from those of the five Litomosoides species available, the three of the ''carinii group'' being the most distant. The new species harbours W. pipientis, which is concurrent with the great majority of Litomosoides species screened to date.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Ecological analyses of the intestinal helminth communities of the wolf, Canis lupus, in Spain

Creator:
Segovia, Juan-Matías, Guerrero, Ricardo, Torres, Jordi, Miquel, Jordi, and Feliu, Carlos
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
helminths, communities, Canis lupus, Spain (Werner, 1782), Toxascaris leonina (von Linstow, 1902), and Ancylostoma caninum (Ercolani, 1859) and Trichuris vulpis (Froelich)
Language:
English
Description:
This work describes the ecological characteristics of the intestinal helminth communities of 50 wolves (Canis lupus L.) from Spain. The species found were classified into three groups according to prevalence, intensity and intestinal distribution. Taenia hydatigena Pallas, 1766 and Uncinaria stenocephala (Railliet, 1884) are the core species of the community. Taenia multiceps (Leske, 1780) is a secondary species. The rest of the species, Alaria alata (Goeze, 1782), Taenia serialis (Gervais, 1847), Taenia pisiformis (Bloch, 1780), Dipylidium caninum (Linnaeus, 1758), Mesocestoides sp. aff. litteratus, Toxocara canis (Werner, 1782), Toxascaris leonina (von Linstow, 1902), Ancylostoma caninum (Ercolani, 1859) and Trichuris vulpis (Froelich, 1789), behave as satellite species. The linear intestinal distribution of all helminth species was analysed. The location of most species can be considered predictable, especially for core and secondary species. The analysis of interspecific relationships between infracommunities shows that negative associations are more numerous than positive associations. The role of A. caninum in the community is compared with that of U. stenocephala.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public