The helminths of 218 white-toothed shrews from 29 sites in 2 biotopes in the Albufera Natural Park (Valencia, Spain) were examined from July 1990 to August 1991. An association analysis of helminths occurring at a prevalence of more than 4% was carried out for 4 species of cestodes located in the intestine (Hymenolepis pistillum, H. scalaris, H. tiara, and Pseudhymenolepis redonica) and 3 species of nematodes (Pseudophysaloptera sp. located in the stomach, Stammerinema rhopocephala larvae in the intestine and abdominal cavity, and Porrocaecum sp. in the thoracic and abdominal cavities). Bivariate (species pairs) versus multivariate analyses (associations within the entire set of species) were performed of presence–absence and of quantitative records (influence of intensity on associations). The associations were evaluated with respect to the sex and age of the host and to the sampling date and sites. The host and environment played a limited role, and the major determinant of species assemblage was phylogenetic. Positive associations were found among both the cestodes and the nematodes, whereas negative associations were found between cestodes and nematodes. The type of life cycle was probably the second greatest determinant of species associations. Nematodes using shrews as a paratenic host or as their definitive host were both positively associated.
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June 2004
Research Article|
June 01 2004
HELMINTH ASSOCIATIONS IN WHITE-TOOTHED SHREWS CROCIDURA RUSSULA (INSECTIVORA: SORICIDAE) FROM THE ALBUFERA NATURAL PARK, SPAIN
Enrique Portolés
;
Enrique Portolés
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Avenida Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain. cabaret@tours.inra.fr
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Pedro Granel
;
Pedro Granel
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Avenida Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain. cabaret@tours.inra.fr
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J. Guillermo Esteban
;
J. Guillermo Esteban
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Avenida Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain. cabaret@tours.inra.fr
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Jacques Cabaret
Jacques Cabaret
Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Avenida Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain. cabaret@tours.inra.fr
* Equipe ecologie et génétique des parasites, Unité BioAgresseurs, Santé, Environnement, INRA, 37380 Nouzilly, France
† To whom correspondence should be addressed
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J Parasitol (2004) 90 (3): 572–578.
Citation
Enrique Portolés, Pedro Granel, J. Guillermo Esteban, Jacques Cabaret; HELMINTH ASSOCIATIONS IN WHITE-TOOTHED SHREWS CROCIDURA RUSSULA (INSECTIVORA: SORICIDAE) FROM THE ALBUFERA NATURAL PARK, SPAIN. J Parasitol 1 June 2004; 90 (3): 572–578. doi: https://doi.org/10.1645/GE-3211
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