Helminth Parasites of Six Species of Anurans from Los Tuxtlas and Catemaco Lake, Veracruz, Mexico

Goldberg, Stephen R.; Bursey, Charles R.; Salgado‐Maldonado, Guillermo; Báez, R.P; Caneda, Cristina

doi:10.2307/3672917

Cited by 60 publications

(34 citation statements)

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“…Studies on the helminth communities of amphibians have increased in recent years (Aho 1990, Bursey & Goldberg 1998, Bolek & Coggins 2000, 2003, Goldberg et al 2002, Khidr et al 2002, ParedesCalderon et al 2004, Brooks et al 2006, Hamann et al 2006. The recent interest in amphibian parasites probably stems from the hypothesis that some parasitic species may be responsible for some amphibian declines.…”

Section: Introductionmentioning

confidence: 99%

Helminth infracommunities of the maculated toad Amietophrynus regularis (Anura: Bufonidae) from Ismailia, Egypt

Ibrahim¹

2008

Dis. Aquat. Org.

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The objective of the present work was to study the helminth infracommunities of Amietophrynus (Bufo) regularis and the possible effects of intrinsic and extrinsic factors on infracommunity structure and on the infection parameters of each parasite species involved. A total of 129 A. regularis were collected from Ismailia, Egypt, over 3 seasons. Helminth infracommunities consisted of 8 helminth taxa (1 monogenean, 1 digenean, 1 cestode, 3 nematodes, and 2 acanthocephalans [1 adult and 1 cystacanth]). Aplectana macintoshii had the highest prevalence (82.94%), mean abundance (73.74), and mean intensity (88.91) and can be considered a core species. A. macintoshii dominated in 68.99% of the infracommunities, with a high Berger-Parker index value (0.9). Only 9 toads were uninfected; the remainder harbored between 1 and 7 helminth species and 1 to 632 ind. Mean species richness and abundance were 2.13 ± 0.13 and 81.34 ± 13.60, respectively, while evenness and diversity were 0.3 and 0.44, respectively.The results revealed that season, host sex, and age played significant roles in determining infracommunity species richness. The patterns of helminth infracommunity richness and diversity were similar to those previously observed in other amphibian hosts. This study indicated that the helminth community of A. regularis was depauperate.KEY WORDS: Amietophrynus regularis · Helminth infracommunity · Body size · Season · Sex · Parasite load Resale or republication not permitted without written consent of the publisherDis Aquat Org 82: [19][20][21][22][23][24][25][26] 2008 tors (host sex, weight and age) and an extrinsic factor (season) on the structure of these infacommunities, notably on the prevalence, mean abundance and mean intensity of each parasite species involved. MATERIALS AND METHODSA total of 129 specimens of Amietophrynus regularis (5.1 to 7.9 cm in snout -vent length) were collected from Nefesha, Ismailia (32°N, 30°30' E), in 3 seasons: winter (February 2005), spring (April 2005) and summer (July 2005). Toads were collected by hand during spring and summer. During the hibernation season (winter), specimens were collected by digging muddysand areas. The toads collected from this area can be described as semi-terrestrial. Parasitological analysis was carried out within 72 h of capture. Toads were killed using chloroform, and then dissected and examined for helminth parasites. The stomach, intestine, lungs, kidneys and urinary bladder were dissected and placed separately in Petri dishes containing 0.9% saline solution. The body cavity was also searched for helminths. Contents were cleaned in saline solution and examined under a dissecting microscope.The ecological terminology follows that described by Bush et al. (1997). Analyses of helminth infracommunity structure, irrespective of site of infection, included measurements of mean number of helminths (abundance), species richness, mean diversity, and evenness (Brillouin's index). Numeric dominance was determined using the Berger-Parker dominance index....

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Section: Introductionmentioning

confidence: 99%

Helminth infracommunities of the maculated toad Amietophrynus regularis (Anura: Bufonidae) from Ismailia, Egypt

Ibrahim¹

2008

Dis. Aquat. Org.

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“…Bufo arenarum Hensel) (type host) in Argentina (type locality), Paraguay and Uruguay (Gutiérrez 1945, Kloss 1971 (Goldberg et al 2002); from Rhi. marina in French Guiana (present paper).…”

Section: Discussionmentioning

confidence: 99%

“…from southern Brazil, Paraguay, Uruguay and Argentina (Gutiérrez 1945, Kloss 1974, González and Hamann 2008. The only record of this species from Mexico (Goldberg et al 2002) may be a misidentification (Martínez-Salazar and León-Règagnon 2007) and needs confirmation. Rhabdias fuelleborni has a wider distribution and has been recorded from a vast area, including the aforementioned countries and northern Brazil (Kloss 1974, Vicente et al 1990, Martínez-Salazar and León-Règagnon, 2007, González and Hamann 2008.…”

Section: Rhabdias Fuellebornimentioning

confidence: 99%

Some nematodes of the genus Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) parasitising amphibians in French Guiana

Kuzmin¹,

Preez²,

Junker³

2015

Folia Parasitologica

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Based on material collected from Rhinella cf. margaritifera (Laurenti) and Rhi. marina (Linnaeus) (Anura: Bufonidae) during a parasite survey of the herpetofauna of French Guiana, updated descriptions of Rhabdias androgyna Kloss, 1971 and R. fuelleborni Travassos, 1926 are presented. In addition to metrical data, which may overlap in closely related species, emphasis is placed on qualitative characters. Rhabdias androgyna is distinguished by the unique presence of an outer and inner cephalic cuticular inflation, a shoulder-like broadening of the body at the anterior end, a wide and shallow buccal capsule (average buccal ratio 0.36) with serrated lumen in apical view, a prominent anterior dilatation of the oesophagus, and the presence of an additional posterior dilatation anterior to the oesophageal bulb. Characters that may help to differentiate R. fuelleborni from closely related species parasitising the Rhi. marina species group are the presence of six relatively uniform lips, and the division of the buccal capsule into an anterior and posterior segment, with differently structured walls. Both the presence of R. androgyna and R. fuelleborni in French Guiana constitute new geographic records. A single specimen of Rhabdias sp. is described from Pristimantis chiastonotus (Lynch et Hoegmood) (Anura: Craugastoridae). This species differs from all its Neotropical congeners by the distinct globular swelling of its head, similar to that seen in only one Palaearctic and one Afrotropical Rhabdias species. A list of species of Rhabdias parasitising amphibians in the Netropical Realm is also provided.

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“…Interspecific variation in host diet, life history, and body size among sympatric species of amphibians offer an excellent comparative approach for studies on helminth community structure (Goater et al 1987;Goldberg et al 1995Goldberg et al , 2002Barton 1999;McAlpine 1997;Bolek and Coggins 2003;Yoder and Coggins 2007). Recent comparative studies on sympatric anurans by Bolek and Coggins (2003), Janovy (2007a, b, 2008), Bolek et al (2009Bolek et al ( , 2010, Goldberg et al (1995), Muzzall and Peebles (1991), Janovy (1994, 1996), McAlpine (1997), and Coggins (1996, 2007) have provided baseline data on the distribution, demography, field host specificity, and life history of anuran parasites in sympatrically distributed hosts.…”

Section: Introductionmentioning

confidence: 99%

Helminth community structure in tadpoles of northern leopard frogs (Rana pipiens) and Woodhouse’s toads (Bufo woodhousii) from Nebraska

Rhoden

Bolek

2015

Parasitol Res

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Currently, little information is available on helminth community structure in tadpoles, the ephemeral, feeding, non-reproductive larva stages of anurans. We examined the helminth community structure in tadpoles of northern leopard frogs, Rana pipiens, and Woodhouse's toads, Bufo woodhousii, from a first-order stream in Western Nebraska. Specifically, we were interested in how species-specific difference in size, time to metamorphosis, and habitat partitioning among larval anurans affect their helminth community structure. From June-July 2009, we collected 30 tadpoles of northern leopard frogs, R. pipiens, and 50 tadpoles of Woodhouse's toads, B. woodhousii, from Cedar Creek, Keith County, NE, USA. The compound helminth community was dominated by trematode metacercarial stages (echinostomatids and plagiorchids) and the nematode Gyrinicola batrachiensis with only a single non-gravid adult trematode, Gorgoderina attenuata, present in low numbers. The helminth component communities were depauperate and isolationist in nature, with a maximum of four helminth species/types per component community. Although no species-specific helminth infections were observed, clear differences were found in overall abundance of nematode versus trematode infections among tadpoles of these two anuran species. The component community of tadpoles of R. pipiens was dominated by nematodes, whereas the component community of tadpoles of B. woodhousii was dominated by trematodes. Although differences in tadpole susceptibility of these two anuran species could not be ruled out, differences in the reproductive strategy of G. batrachiensis in tadpoles of R. pipiens and B. woodhousii and anuran species-specific habitats partitioning among tadpoles of these two anuran species were important factors in structuring their helminth communities. Our study indicates that time to metamorphosis (older tadpoles) play a significant role in structuring helminth communities of tadpoles within species at the infracommunity level with older tadpoles having higher helminth species richness and/or abundances. However, species-specific differences in anuran tadpole habitat partitioning outweighed the effects of differences in time to metamorphosis at the component community level. Finally, our study is the first to report deformities in hind limb development in a tadpole from Nebraska. Of the 30 northern leopard frog tadpoles collected, a single individual contained an extra hind limb and was infected with two plagiorchid metacercariae located in the musculature above the hind limbs.

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Helminth Parasites of Six Species of Anurans from Los Tuxtlas and Catemaco Lake, Veracruz, Mexico

Cited by 60 publications

References 5 publications

Helminth infracommunities of the maculated toad Amietophrynus regularis (Anura: Bufonidae) from Ismailia, Egypt

Helminth infracommunities of the maculated toad Amietophrynus regularis (Anura: Bufonidae) from Ismailia, Egypt

Some nematodes of the genus Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) parasitising amphibians in French Guiana

Helminth community structure in tadpoles of northern leopard frogs (Rana pipiens) and Woodhouse’s toads (Bufo woodhousii) from Nebraska

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