Variation in the helminth community structure of three sympatric sigmodontine rodents from the coastal Atlantic Forest of Rio de Janeiro, Brazil

AbstractOne hundred and eighty specimens of sigmodontine rodents living in sympatric conditions were collected in the Atlantic Forest in the state of Rio de Janeiro, Brazil (25Akodon cursor, 98Akodon montensisand 57Oligoryzomys nigripes) to examine whether the helminth structure and component communities can be characterized among these three closely related rodents. The parasite species richness was 9 inA. cursor, 12 inA. montensisand 12 inO. nigripes. Five species were common to the three rodent species, and eight were common toA. cursorandA. montensis. The trichostrongylids –Stilestrongylus etainA. cursor,S. aculeatainA. montensisandS. lanfrediaeinO. nigripes– were the species with highest dominance frequency and determined the characterization of individual community structures. The prevalence and abundance of concurrent helminth species among rodents were significantly different. Canonical multivariate analysis demonstrated a similar helminth community structure betweenA. cursorandA. montensisbut a high discrepancy betweenAkodonspp.and O. nigripes. Thus, the data indicated that small rodents such asA. cursor,A. montenisandO. nigripesthat are sympatric and phylogenetically related have a different community structure, but similar component community, suggesting the role of helminth specificity and the hosts' habitats as determinants in structuring their helminth communities.

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Characterization of soil fauna under the influence of mercury atmospheric deposition in Atlantic Forest, Rio de Janeiro, Brazil

Journal of Environmental Sciences ◽

10.1016/j.jes.2015.01.009 ◽

2015 ◽

Vol 32 ◽

pp. 217-227 ◽

Cited By ~ 9

Author(s):

Andressa Cristhy Buch ◽

Maria Elizabeth Fernandes Correia ◽

Daniel Cabral Teixeira ◽

Emmanoel Vieira Silva-Filho

Keyword(s):

Atmospheric Deposition ◽

Atlantic Forest ◽

Rio De Janeiro ◽

Soil Fauna

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The potential rôle of the Rio de Janeiro Botanical Garden in conserving the Atlantic Forest of Brazil

Tropical Botanic Gardens ◽

10.1016/b978-0-12-346850-5.50019-3 ◽

1991 ◽

pp. 163-166

Author(s):

Gustavo Martinelli

Keyword(s):

Atlantic Forest ◽

Rio De Janeiro ◽

Potential Role ◽

Botanical Garden

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Community ecology of the metazoan parasites of namorado sandperches, Pseudopercis numida Miranda-Ribeiro, 1903 and P. semifasciata Cuvier, 1829 (Perciformes: Pinguipedidae), from the coastal zone of the State of Rio de Janeiro, Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842008000200007 ◽

2008 ◽

Vol 68 (2) ◽

pp. 269-278 ◽

Cited By ~ 19

Author(s):

JL. Luque ◽

NN. Felizardo ◽

LER. Tavares

Keyword(s):

Species Richness ◽

Rio De Janeiro ◽

Parasite Species ◽

Neotropical Region ◽

Component Community ◽

New Host ◽

Metazoan Parasites ◽

Parasite Abundance ◽

Parasite Species Richness ◽

Total Length

One hundred and twenty-eight specimens of namorado sandperches, 62 P. numida and 66 P. semifasciata, collected between October 2002 and June 2003 off the Cabo Frio, Rio de Janeiro, Brazil (Lat 23° S and Long 42° W), were examined to study their metazoan parasites. Parasite communities of these fish were composed basically of endoparasites, mainly digenean and cestodes species, with low prevalence and abundance but having high parasite species richness values (at the component community level). Among these values, that found for P. numida is the highest so far recorded for marine fishes from the Neotropical Region. Thirty-nine species of metazoan parasites were collected: 36 from P. numida and 28 from P. semifasciata. Twenty-five parasite species were common to both species of namorado sandperches. Pseudopercis numida and P. semifasciata are new host records for all parasite species collected, with the exception of Microcotyle pseudopercis. Choanodera sp., Leurodera decora, Neolebouria georgenascimentoi, and Proctoeces sp. which were recorded for the first time in the South American Atlantic Ocean. Gnathia sp. from P. numida and Scolex pleuronectis from P. semifasciata were the species having the greatest dominance frequency. Parasite abundance in P. numida and P. semifasciata were positively correlated with the host total length. Only in P. numida was parasite species richness correlated positively with the host total length. No significant differences between endoparasite infracommunities of P. numida and P. semifasciata were detected. The ectoparasites of P. numida had higher values for parasite abundance, parasite richness, Brillouin index, evenness index, and Berger-Parker index than those of the ectoparasites of P. semifasciata. Comparisons among all ecto- and endoparasites showed the ectoparasites of P. numida as the most heterogeneous group. Low similarity values were observed among the three types of parasite infracommunities of the two hosts.

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Expansion of the range of Necromys lasiurus (Lund, 1841) into open areas of the Atlantic Forest biome in Rio de Janeiro state, Brazil, and the role of the species as a host of the hantavirus

Acta Tropica ◽

10.1016/j.actatropica.2018.08.026 ◽

2018 ◽

Vol 188 ◽

pp. 195-205 ◽

Cited By ~ 5

Author(s):

Fernando de Oliveira Santos ◽

Bernardo Rodrigues Teixeira ◽

José Luis Passos Cordeiro ◽

Rute Hilário Albuquerque de Sousa ◽

Camila dos Santos Lucio ◽

...

Keyword(s):

Atlantic Forest ◽

Rio De Janeiro ◽

Janeiro State ◽

Forest Biome

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Community structure analysis of endoparasitic helminths of Anabas testudineus from unpolluted and polluted sites of a freshwater body of Dhaka

Dhaka University Journal of Biological Sciences ◽

10.3329/dujbs.v23i1.19823 ◽

2014 ◽

Vol 23 (1) ◽

pp. 27-38

Author(s):

Md Osman Ghani ◽

Aminul Islam Bhuiyan ◽

Jannatul Bushra

Keyword(s):

Community Structure ◽

Parasite Species ◽

Parasite Community ◽

Community Diversity ◽

Polluted Water ◽

Component Community ◽

Anabas Testudineus ◽

Host Sex ◽

Host Habitat ◽

Insignificant Difference

Community structure of metazoan endoparasites of Anabas testudineus collected from an unpolluted and a polluted water body was determined. Out of 100 A. testudineus observed, 78% was parasitized by at least one species of endohelminth parasite. Eight metazoan endoparasites were recorded. Nematode showed higher prevalence than trematode. One species was accounted as satellite species and others as secondary. Larger hosts were more abundantly infected than the smaller ones as positive correlation was observed between the standard length of the hosts and the abundance/ prevalence of all parasites. Maximum parasite species followed a typical overdispersed type of distribution pattern. Parasite species richness was lower in fish from polluted (4) than unpolluted water (6). Per cent similarity of infestation between the sample hosts was high (55.73%). Three common parasite species from both sample hosts showed insignificant difference in intensity of infestation in relation to host habitat. Host sex had influenced infestation at infra?community but not at component community level. Interspecies association between parasites was strong in fish from unpolluted in comparision from polluted water. Hosts habitat quality also played an influential role in building parasite community, diversity and other associated community indices. DOI: http://dx.doi.org/10.3329/dujbs.v23i1.19823 Dhaka Univ. J. Biol. Sci. 23(1): 27-38, 2014

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Isolation and characterization of trypanosomatids, including Crithidia mellificae, in bats from the Atlantic Forest of Rio de Janeiro, Brazil

PLoS Neglected Tropical Diseases ◽

10.1371/journal.pntd.0007527 ◽

2019 ◽

Vol 13 (7) ◽

pp. e0007527 ◽

Cited By ~ 3

Author(s):

Diana Azeredo Rangel ◽

Cristiane Varella Lisboa ◽

Roberto Leonan Morim Novaes ◽

Bruno Alves Silva ◽

Renan de França Souza ◽

...

Keyword(s):

Atlantic Forest ◽

Rio De Janeiro ◽

Isolation And Characterization

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The dynamics of intestinal helminth communities in eels Anguilla anguilla in a small stream: long-term changes in richness and structure

Parasitology ◽

10.1017/s0031182000079427 ◽

1993 ◽

Vol 107 (1) ◽

pp. 71-78 ◽

Cited By ~ 62

Author(s):

C. R. Kennedy

Keyword(s):

Species Richness ◽

Community Structure ◽

Recovery Period ◽

Intestinal Helminth ◽

Helminth Community ◽

Component Community ◽

Small Stream ◽

Habitat Changes ◽

Species Richness And Diversity ◽

Helminth Communities

SummaryThe prediction that species richness and diversity of intestinal helminth communities in eels would change over time in response to habitat changes was tested over a period of 13 years in a small stream subjected to extensive human management. Nearly all measures of helminth community structure adopted indicated a decline in richness and diversity over the first 6 years followed by a recovery over the last few years to levels unexpectedly close to those at the start of the investigation. Changes in total number of species suggested that the component community was far richer (from 3–9 species) at the end of the period. By contrast, changes in diversity and dominance measures revealed less variation than expected and suggested that there was an underlying stability of community structure characterized by high dominance by a single species, although the identity of this changed, low diversity and a large proportion of the eel population harbouring 0 or only 1 species. A similar pattern of changes was recorded in the infra-communities, where values of species richness and diversity were very similar at the commencement and termination of the study. It appeared that those helminths that colonized in the recovery period contributed to community richness but had little impact on community structure. The helminth communities clearly did change in response to habitat changes, and the evidence for a fixed number of niches and an underlying constancy in helminth community structure in eels is evaluated.

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Helminth Parasite Communities of Two Scorpaena spp. (Scorpaenidae) From Reefs of Veracruz, Mexico

Journal of Agricultural Science ◽

10.5539/jas.v10n9p504 ◽

2018 ◽

Vol 10 (9) ◽

pp. 504

Author(s):

Jesús Montoya-Mendoza ◽

Sandra Edith Badillo-López ◽

Isabel Araceli Amaro-Espejo ◽

María del Refugio Castañeda-Chávez ◽

Fabiola Lango-Reynoso ◽

...

Keyword(s):

Species Richness ◽

Community Structure ◽

National Park ◽

Common Species ◽

Shannon Index ◽

Marine Fishes ◽

Helminth Community ◽

Component Community ◽

Parasite Communities ◽

Southern Gulf Of Mexico

Scorpaena brasiliensis and S. plumieri are relevant fish species in reef systems, but little is known about their parasitic helminth communities and their structure. This paper describes such community in terms of species richness and diversity. A helminthological study was conducted on 33 specimens of S. brasiliensis and 36 S. plumieri, captured in the Pajaros and Cabezo Reefs, in the Veracruz Reef System National Park (VRSNP), Veracruz, Mexico. The helminth community structure was analyzed in both host species. A total of 10 parasitic species was registered in S. brasiliensis (5 digeneans, 1 cestode, 3 nematodes, 1 acanthocephalan), while S. plumieri hosted 11 species (4 digeneans, 1 monogenean, 1 cestode, 4 nematodes, 1 acanthocephalan), with 8 common species. The species with the highest prevalence were Pseudocapillaria (Icthyocapillaria) sp., with 18.2% and 19.4% in S. brasiliensis and S. plumieri, respectively. Component community richness for S. brasiliensis was S = 10, with Shannon index diversity value of H’ = 2.08. For S. plumieri, such values were of S = 11 and H’ = 1.91. Richness and diversity in the component and infracommunity levels for both hosts are lower than in other parasite communities of marine fishes in the southern Gulf of Mexico.

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Biotic and abiotic effects on the intestinal helminth community of the brown ratRattus norvegicusfrom Rio de Janeiro, Brazil

Journal of Helminthology ◽

10.1017/s0022149x14000704 ◽

2014 ◽

Vol 90 (1) ◽

pp. 21-27 ◽

Cited By ~ 10

Author(s):

R.O. Simões ◽

J.L. Luque ◽

R. Gentile ◽

M.C.S. Rosa ◽

S. Costa-Neto ◽

...

Keyword(s):

Community Structure ◽

Rio De Janeiro ◽

Abundant Species ◽

Helminth Species ◽

Intestinal Helminth ◽

Nippostrongylus Brasiliensis ◽

Helminth Community ◽

Public Health Importance ◽

Strongyloides Venezuelensis ◽

Moniliformis Moniliformis

AbstractRattus norvegicushas attracted much attention because of its role as a reservoir of zoonotic pathogens. This work aimed to identify the intestinal helminth species inR. norvegicusand to analyse the effects of temperature, rainfall, host age and sex on the helminth community structure. Moreover, this study investigated the possible associations among helminth species in an urban population ofR. norvegicusin São Gonçalo, Rio de Janeiro, sampled during the rainy and dry seasons over a span of 2 years. A total of 112 rats were infected by six species of helminths. The nematodeNippostrongylus brasiliensiswas the most prevalent and abundant species, with high mean intensity in both seasons, followed byStrongyloides venezuelensis,Heterakis spumosa,Raillietinasp.,Hymenolepis nanaandMoniliformis moniliformis.Co-occurrence was found betweenN. brasiliensisandS. venezuelensisand betweenN. brasiliensisandH. spumosa.The occurrence ofS. venezuelensiswas related to rainfall. The understanding of the helminth community structure in this synanthropic rat provides basic information on parasites of public health importance, as two helminth species (H. nanaandM. moniliformis) recovered from rats in the urban area studied can infect humans.

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