Nematodes associated with Iguana iguana (Linnaeus, 1758) (Squamata, Iguanidae) in Semi-arid areas of Northeastern Brazil

Teles, Diêgo Alves; Brito, Samuel V.; Teixeira, Adonias Aphoena Martins; Ribeiro, Samuel Cardozo; Araujo-Filho, J A; Lima, Vandeberg Ferreira; Pereira, A. M. A.; Almeida, Waltécio de Oliveira

doi:10.1590/1519-6984.17615

Cited by 6 publications

(9 citation statements)

References 19 publications

(28 reference statements)

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“…However, foraging mode, contact between susceptible hosts and population density may also contribute to increases observed within this category. Pharyngodon were prevalent within lizards (Gupta et al ., 2009; Anjos et al ., 2012; Brito et al ., 2014a; Teles et al ., 2017). The genus is composed of monoxenic species, which are parasites of vertebrates, with a wide global distribution pattern (Ávila & Silva, 2010; Campião et al ., 2014; Goldberg et al ., 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Alaeuris caudatus and A. vogelsangi are, however, specific parasites of iguanas, and Gynaecometra bahiensis specifically parasitizes Polycrhus acutirostris . These specificities are probably related to arboreal habits and the herbivorous and omnivorous diets of hosts, respectively (Ávila & Silva, 2010; Araujo Filho et al ., 2014; Teles et al ., 2017).…”

Section: Discussionmentioning

confidence: 99%

“…This does not necessarily indicate a low degree of richness, competitive exclusion or lack of interaction among species (Brooks et al ., 2006). For the Caatinga domain, historical and ecological factors, and seasonality and geographic variations have a greater influence on the establishment of endoparasite communities (Brito et al ., 2014a, b; Araujo Filho et al ., 2017; Lima et al ., 2017; Teixeira et al ., 2017; Teles et al ., 2017).…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, we evaluate the influence of average abundance on the variance of endoparasites observed within lizards living in semiarid areas of the Caatinga in north-eastern Brazil. Studies on lizard endoparasites from Caatinga have become more frequently produced in recent years (Ávila et al ., 2012; Brito et al ., 2014a; Araujo Filho et al ., 2017; Teixeira et al ., 2017; Teles et al ., 2017), but our understanding of endoparasite community structures with regard to both the abundance and aggregation patterns of parasites is lacking (Ávila et al ., 2012; Araujo Filho et al ., 2014). The endoparasitic fauna of Caatinga lizards is composed mainly of generalists, where parasite abundances are positively related to the size, sex and reproductive period of the hosts, as well as with the rainy season, which indicate that multiple factors determine the patterns of resource use by parasitic species (Anjos et al ., 2007; Almeida et al ., 2008; Ávila et al ., 2012; Lima et al ., 2017; Oliveira et al ., 2017; Teixeira et al ., 2017; Teles et al ., 2017).…”

Section: Introductionmentioning

confidence: 99%

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Using lizards to evaluate the influence of average abundance on the variance of endoparasites in semiarid areas: dispersion and assemblage structure

et al. 2020

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The distribution of parasites within host populations and communities, and the mechanisms responsible for these patterns, are poorly understood aspects of wildlife parasitology. Here, we evaluate the influence of the average abundance of endoparasite variance, using endoparasites of lizards from the Caatinga domain (semiarid region), north-eastern Brazil. We hypothesized that, due to the high number of generalist endoparasite species, they may occur randomly throughout host populations in an aggregate pattern. In addition, we evaluated the degree to which sample variance is influenced by the average abundance of endoparasite species, patterns of co-occurrence and dominance among endoparasite species and similarities between abundance and the richness of endoparasite infracommunities in several host species. Between September 2015 and February 2016, 2141 lizards (1233 infected) from 16 species were collected from six Caatinga areas. In total, 25,687 endoparasites were collected, which belonged to 13 species including nematodes, pentastomids, cestodes, trematodes and acanthocephalans. Parasite–host associations documented here included 39 newly identified interactions. Endoparasites occurred in a typical aggregate pattern of distribution within their hosts; there was no measurable preference related to the acquisition of hosts by endoparasites. Despite the new records, endoparasites found were commonly associated with lizards in Caatinga environments, which may reflect fauna composed of generalist endoparasite species.

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“…This can easily be perceived for nematodes of the genus Physaloptera , since they infect a wide range of lizards in South America (Ávila & Silva, 2010; Teixeira et al ., 2017), however, almost always followed by low prevalence of infection: P. lutzi (0.9 % ) parasitizing Ameivula ocellifera (Spix, 1825) (Ribas et al ., 1995); P. lutzi (2 % ) and P. retusa Rudolphi, 1819 (3.9 % ) in Ameiva ameiva (Linnaeus, 1758) (Ribas et al ., 1998); P. retusa (5.3 % ) and P. lutzi (19.3 % ) in the lizard Tropidurus hispidus (Spix, 1825) (Anjos et al ., 2012); P. retusa (9 % ) registered in Polychrus acutirostris Spix, 1825 (Araujo Filho et al ., 2014); P. retusa in the sympatric lizards Hemidactylus mabouia (Moreau de Jonnès, 1818) (3.94 % ) and Phyllopezus pollicaris (Spix, 1825) (2.54 % ) (Sousa et al ., 2014); Physalopreta sp. (5 % ) in the stomach of Iguana iguana (Linnaeus, 1758) (Teles et al ., 2017) and more recently, P. lutzi registered by Lima (2017) parasitizing the gecko lizards P. pollicaris (3 % ), Hemidactylus brasilianus (Amara, 1935) (4.1 % ), Hemidactylus agrius Vanzolini, 1978 (1.6 % ), Gymnodactylus geckoides Spix, 1825 (12.6 % ), and Lygodactylus klugei (Smith, Martin e Swain, 1977) (1.5 % ), from northeastern Brazil. Thus, the low infection rates presented here by the generalist nematode P. lutzi apparently obey the standard cited above.…”

Section: Discussionmentioning

confidence: 99%

Helminths infecting Dryadosaura nordestina (Squamata: Gymnophthalmidae) from Atlantic Forest, northeastern Brazil

et al. 2018

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SummaryWe analyzed the patterns of infection by helminths in populations of the Gymnophthalmidae lizard Dryadosaura nordestina from three Atlantic Forest fragments in Northeast Brazil. Prevalence and mean intensity of infection by location showed the following results: ARIE Mata de Goiamunduba (60.8 % and 10.4 ± 8), RPPN Engenho Gargaú (83.3 % and 20.8 ± 19.7) and Benjamim Maranhão Botanical Garden (70.4 % and 7.78 ± 5.8). We provide the first records of helminth infection for the lizard D. nordestina, in which three species of nematodes, Aplectana sp., Cosmocerca sp. and Physaloptera lutzi and one trematode Haplometroides odhneri were recovered. Trematodes of the genus Haplometroides were previously known as parasites only in snake and amphisbaenian hosts in South America. Now, our study provides the first record of a species belonging to this genus parasitizing lizards. In conclusion, our study shows that D. nordestina have a depleted helminth fauna (three species at maximum), similar to other studies with lizards of this family in Brazil and that its parasite abundance is related to host snout-vent length, but not to the sex.

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Nematodes associated with Iguana iguana (Linnaeus, 1758) (Squamata, Iguanidae) in Semi-arid areas of Northeastern Brazil

Cited by 6 publications

References 19 publications

Using lizards to evaluate the influence of average abundance on the variance of endoparasites in semiarid areas: dispersion and assemblage structure

Helminths infecting Dryadosaura nordestina (Squamata: Gymnophthalmidae) from Atlantic Forest, northeastern Brazil

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