Parasitic Infections of Amphibians in the Pendjari Biosphere Reserve, Benin

Aisien, M.S.O.; Nago, Sedjro Gilles Armel; Rödel, Mark‐Oliver

doi:10.3377/004.046.0213

Cited by 5 publications

(7 citation statements)

References 27 publications

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“…Moreover, this is also the season when the arthropod intermediate host of some parasites occur in their abundance to effect their trophic transmission to their definitive hosts. This pattern of infection has also been observed by other authors (Aisien et al, 2001(Aisien et al, , 2011(Aisien et al, , 2017.…”

Section: Resultssupporting

confidence: 88%

Parasitic helminth fauna of tree frogs from cocoa plantations at Ugboke, Edo State, Nigeria

Edo-Taiwo¹,

Aisien²

2021

NJLS

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Cocoa pods are vulnerable to pest and diseases which often cause huge financial losses to farmers. To address this challenge and improve yield, cocoa farmers often resort to pesticide application on the cocoa trees. This leads to deposition of pesticides residues on the cocoa trees, the undergrowth and plantations floor with devastating consequences for amphibians including tree frogs. Previous studies have reported the immune suppressive nature of pesticides on anurans thereby rendering them more susceptible to infection. This study is part of an on-going investigation of the effect of pesticide application on the pattern of helminth parasitic infections of anurans in pesticide-treated cocoa plantations at Ugboke, Edo State. A total of 354 tree frogs belonging to three genera (Leptopelis, Hyperolius and Afrixalus), consisting of 14 species were examined. A high species richness (d=1.971) and diversity (H’=2.215) was recorded. Ten species (71.43%) of these frogs were infected while four (28.57%) were uninfected. The overall prevalence of parasitic infections was 30.23%. Thirteen helminth parasites including three cestodes, two digeneans and eight nematode species were recovered. A significantly higher (P<0.05) prevalence of infection was recorded during the wet season (31.64%) than in the dry (10.53%). There was high parasite diversity with low prevalence and infection intensity of infection as previously reported for other anurans collected from the same cocoa plantations

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Section: Resultssupporting

confidence: 88%

Parasitic helminth fauna of tree frogs from cocoa plantations at Ugboke, Edo State, Nigeria

Edo-Taiwo¹,

Aisien²

2021

NJLS

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“…The identity of this nematode is unknown, but from the intestinal content, it appears to be a haematophagous parasite. Although the structure of the oesophagus bears semblance to those of Physaloptera species it is unlikely that this parasite belongs to this group since the larvae of Physaloptera species have only been observed to occur in the stomachs of anurans in Nigeria (unpublished data) and elsewhere [19]. 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.…”

Section: Discussionmentioning

confidence: 96%

“…It is likely that they may have been overlooked in previous studies on account of their very small size. Aisien et al [19] found this parasite in four anurans (Hoplobatrachus occipitalis, Hyperolius nitidulus, Phrynobatrachus latifrons, and P. natalensis) at the Pendjari Biosphere Reserve in Benin Republic, which is located in the savanna region of the country. In the derived savanna of Nigeria (Agbede) a small number of hosts also harboured this parasite.…”

Section: Discussionmentioning

confidence: 99%

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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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“…Haematoloechus johnsoni Bourgat, 1977 Type host and locality: crowned bullfrog Hoplobatrachus occipitalis, Awagome and Klikame, Togolese Republic (Bourgat 1977). Other records: Benin: H. occipitalis (Aisien et al 2011); Sudan: H. occipitalis (Pike 1979). Taxonomic notes: Valid species, nominally described.…”

Section: Haematoloechus Exoterorchismentioning

confidence: 99%

Taxonomic revision of species of Haematoloechus Looss, 1899 (Digenea: Plagiorchioidea), with molecular phylogenetic analysis and the description of three new species from Mexico

León‐Régàgnon

Topan

2018

Zootaxa

439

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Parasitic Infections of Amphibians in the Pendjari Biosphere Reserve, Benin

Cited by 5 publications

References 27 publications

Parasitic helminth fauna of tree frogs from cocoa plantations at Ugboke, Edo State, Nigeria

Parasitic helminth fauna of tree frogs from cocoa plantations at Ugboke, Edo State, Nigeria

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

Taxonomic revision of species of Haematoloechus Looss, 1899 (Digenea: Plagiorchioidea), with molecular phylogenetic analysis and the description of three new species from Mexico

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