Browsing by Issue Date, starting with "2004-07-18"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Parasitological fauna in farm animals from Cape Verde Islands and Guinea-Bissau (West Africa)Publication . Crespo, Maria Virgínia; Rosa, FernandaSince the Atlantic Islands and the coast of West Africa have been discovered that scientists studied their parasitological fauna, mainly the one associated to serious diseases in man and farm animals, which were unknown in Europe. The Cape Verde Islands and Guinea-Bissau were used as “arrival and departure points” during the portuguese discoveries, which promoted the introduction of parasites from other geographical areas or the opposite. On the other hand, as they have been related during several centuries by historical, religious, geographical and political reasons, the spread out of parasitical agents to the previously uninhabitated islands was the most probable occurrence. Based on available references and on the results obtained from parasitological studies in domestic animals performed during 1991 and 1999, at the Cape Verde Islands and Guinea-Bissau, 65 parasitic species were listed, included in PLATYHELMINTHES (TREMATODA and CESTODA), NEMATODA, INSECTA, ARACHNIDA and PENTASTOMIDA PHYLLA. The parasitological diversity was higher at Guinea-Bissau, with 55 species, than at Cape Verde Islands, with 30, from which six species were not found at Guinea-Bissau. Considering the overall species identified, 22 (33,84%) are of afrotropical origin and all the remaining are cosmopolite (61,54%) and pantropical (4,62%), revealing the scarcity of afrotropical species in the islands, only 4 (6,15%). As the majority of species were of cosmopolitan origin, they could have been introduced by domestic animal migrations connected to species evolution or more recently by maritime traffic from all over the world. On the other hand, the obtained differences express the dissimilarity in bio and climatic conditions between a continental area with a regular rainy season and an insular area where the irregularity of the rainy season restricts the diversity of the parasitological fauna.
- Parasitological diversity in non-human Primates at the Natural Park of the Lagoons of Cufada (Guinea-Bissau, West Africa)Publication . Crespo, Maria Virgínia; Rosa, Fernanda; Mendes, L.A parasitological study on non-human primates was performed during a biodiversity study at the Natural Park of the Lagoons of Cufada (Guinea-Bissau, West Africa), on February-March 2001 and October- November 2002. The PRIMATES hosts observed were Cercopithecus mona campbelli (mona monkey), Chlorocebus aethiops sabeus (mangroove monkey), Papio cynocephalus papio (yellow baboon) e Procolobus badius temminckii (red colobus), which were caught by tradicional trapping. The helminths were collected after a decanting process and fixation in alcohol 70º. The morphobiometrical studies were performed on specimens clarified by lactofenol (NEMATODA, PENTASTOMIDA and ARTHROPODA) and stained by chloridrical alcoholic carmin (PLATYHELMINTHES). PHYLLA PLATYHELMINTHES (TREMATODA - Dicrocoelium hospes, Watsonius watsoni - and CESTODA – Bertiella studeri), NEMATODA (ENOPLIDA - Trichuris trichuria; SRONGYLIDA – Strongyloides fuelleborni, Ternidens deminuta, Oesophagostomum bifurcum, O. stephanostomum, Globocephalus longenucronatus, Pithecostrongylus sp., Hyostrongylus rubidus, ASCARIDIDA – Subulura distans; RHABDITIDA – Enterobius sp., and SPIRURIDA), PENTASTOMIDA (Armillifer armillatus) and ARTHROPODA (INSECTA – DIPTERA: first and second stages larvae of BRACHYCERA) were identified. Oesophagostomum stephanostomum and Hyostrongylus rubidus are new record for non-human primates from Guinea-Bissau. All the primates species were infected and NEMATODA was the most abundant and diverse parasitic group. The results obtained showed distinct diversity rates, probably connected with the nutritional habits of the different hosts. The helminthological fauna knowledge on non-human PRIMATES, in a ecosystem such as the Natural Park under study, has major importance due to the relationship established by helminths, wild fauna and environment, as well as its potential transmissibility to man, which will depauperate the sanitary conditions of local populations.