Helminth Parasites of Amphibians from a Rainforest Reserve in Southwestern Nigeria

Aisien, M.S.O.; Ogoannah, S. O.; Imasuen, A.A.

doi:10.3377/004.044.0101

Cited by 15 publications

(26 citation statements)

References 6 publications

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“…This cestode was reported recently by Aisien et al (2009) from the brown ball frog (Aubria subsigillata) and snouted grassland frog (Ptychadena longirostris) from southwestern Nigeria. It has also been reported in amphibians from different bioclimatic zones of Nigeria (see Aisien et al 2001Aisien et al , 2003Aisien et al , 2004. We document a new host and distributional record for C. jaegerskioeldi.…”

supporting

confidence: 63%

Helminth parasites (Cestoidea, Nematoda, Pentastomida) of selected herpetofauna from Cameroon, West Africa

McAllister¹,

Bursey

Freed³

2010

Acta Parasitologica

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Twenty-nine individual amphibians (2 families, 3 species) and 12 individual reptiles (2 families, 2 species) from Douala, Cameroon (West Africa) were examined for helminths. Seventeen (59%) of the amphibians and 11 (92%) of the reptiles were found to harbor at least 1 species of helminth; 10 (34%) of the amphibians and 4 (33%) of the infected reptiles harbored multiple infections. A cestode, 6 species of nematodes, and a pentastomid were found in the herpetofauna surveyed. Nine new host and six new geographic distribution records are reported.

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supporting

confidence: 63%

Helminth parasites (Cestoidea, Nematoda, Pentastomida) of selected herpetofauna from Cameroon, West Africa

McAllister¹,

Bursey

Freed³

2010

Acta Parasitologica

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“…The location of this parasite in the infected International Journal of Zoology hosts and the stage encountered is highly suggestive of the parasite using the anurans as transport host to reach the definitive host. The nematode larvae type II l is that of an ascaridoid nematode which has been reported in previous investigations undertaken in forest and savanna locations in Nigeria [15,16,18]. In these earlier reports, these larvae occurred in the body cavity of B. regularis, D. occipitalis, Pty.…”

Section: Discussionmentioning

confidence: 79%

“…Other savanna dwelling anurans previously known to harbour encysted parasites (ascaridoid larvae) include B. regularis and Dicroglossus occipitalis [15,16]. Apart from their known role as definitive hosts to helminth parasites [15][16][17][18], anurans from the savanna and rainforest seem to be engaged in other roles as shown by the larval helminthes recovered from them in this study. A number of tree frogs were found harbouring metacercariae of the strigeoid trematode in the rainforest.…”

Section: Discussionmentioning

confidence: 82%

Anurans as Intermediate and Paratenic Hosts of Helminth Infections in the Rainforest and Derived Savanna Biotopes of Southern Nigeria

Imasuen

Ozemoka

Aisien

2012

International Journal of Zoology

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Anurans from the rainforest (Okomu National Park) and derived savanna (Agbede) locations in Nigeria were investigated for their role either as intermediate or paratenic hosts of helminth infections. A total of 269 anuran specimens (157 from the Okomu National Park and 112 from Agbede) were examined. Metacercariae of a strigeoid trematode, two nematode species, a proteocephalid cestode, and an acanthocephalan were recovered from infected hosts. Except for the strigeoid trematode, which was only recorded in the rainforest, there was no ecological dichotomy in the distribution of the larval parasites recorded. Tree frogs from the rainforest only served as second intermediate hosts for the strigeoid trematode. The two nematode larvae (type I and type II) found in the body cavity of the infected host are believed to use them as paratenic hosts. Tree frogs were the predominant intermediate hosts of the proteocephalid cestode larvae in the rainforest, while Ptychadena and Phrynobatrachus spp. served this function in the derived savanna. The occurrence of cystacanths in the anurans from both biotopes confirms their known role as paratenic host for acanthocephalans. Afrixalus dorsalis is a new host record for the ascaridoid nematode while the finding of the strigeoid trematode, the proteocephalid cestode larvae and acanthocephalan cystacanths in the anurans investigated represents new geographical records.

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“…Some reports had been written about the parasites of Amphibians in Nigeria [15,16,17,18,19,20,21,22,23,24]. But not as extensive as in some parts of the world.…”

Section: Introductionmentioning

confidence: 99%

Nematode Parasites of Anurans from Three Cocoa Farms in Ondo State, Nigeria

Oniya

Adeyekun

2019

IJTDH

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The research was designed to investigate the parasitic fauna of Anurans from cocoa farms in Ondo state. Amphibians are one of the most threatened groups of vertebrates. Many reasons are attributed to the decline of amphibian species such as global warming, habitat destruction and modification, others include: exploitation, pesticide use, introduced species, ultraviolet-B radiation (UV-B), pollution, parasites and diseases. A total of 31 frogs from 4 genera, Hemisus, Ptychadena, Rana and Xenopus and 7 toads from 1 genus, Sclerophrys were examined. 9 frogs were collected from Oluwateru farm at Iwoye Village; 7 frogs were collected from Folorunso farm at Ako-Igbatoro and 15 frogs from Obodulu farm in Idanre. 5 toads were collected from Oluwateru farm at Iwoye Village and 2 toads from Obodulu farm in Idanre. In all cases collection was done between 20:00 hrs and 05:00 hrs. Collected specimens were transported in sealed but ventilated containers to the laboratory where identification was done to species level. The frogs were anaesthetized until death in absolute chloroform soaked in cotton wool placed inside kill-jar for 3 minutes in the laboratory. The gastrointestinal tracts were cut open and the contents of the various sections were put into separate Petri dishes containing normal saline. The skin and the bladder were observed directly under a dissecting microscope for the presence of cysts and monogeneans. The parasites were fixed and preserved in 70% alcohol following standard procedure. Parasites recovered from the gastrointestinal tracts of the anurans include Cosmocerca ornata, Deising, 1861, Cosmocerca cummutata, Diesing, 1851 Paracosmocerca mucronata, Kung and Wu, 1945, Ampliceacum africanum, Taylor, 1924, Gendria liberrei Bain and Philipon, 1969 and Chenospirura asturi Hsu, 1957 Others were Procamallus brevis Kung, 1948 and Camallanus dimitrovi Durette- Desset and Batcharov, 1974. Some of the parasites are zoonotic while a few others are established parasites of African fishes and water Birds raising probable public health concerns from the findings. Further works aimed at unravelling the biodiversity of hosts and parasites in the lush ecosystem of Ondo state, as well as identification of organisms involved in the life cycle are noted.

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Helminth Parasites of Amphibians from a Rainforest Reserve in Southwestern Nigeria

Cited by 15 publications

References 6 publications

Helminth parasites (Cestoidea, Nematoda, Pentastomida) of selected herpetofauna from Cameroon, West Africa

Helminth parasites (Cestoidea, Nematoda, Pentastomida) of selected herpetofauna from Cameroon, West Africa

Anurans as Intermediate and Paratenic Hosts of Helminth Infections in the Rainforest and Derived Savanna Biotopes of Southern Nigeria

Nematode Parasites of Anurans from Three Cocoa Farms in Ondo State, Nigeria

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