Continental biodiversity of South American oligochaetes: The importance of inventories.

Christoffersen, Martin Lindsey

doi:10.21829/azm.2010.262876

Cited by 18 publications

(12 citation statements)

References 30 publications

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“…The literature review also revealed a small number of studies conducted in Brazil associating Oligocheta to macrophytes. Thus, this study corroborates Christoffersen (2010), who reported that information on these worms in South America are regarded as insuficient and further investigation is needed to increase knowledge on the distribution and ecology of this taxon. Therefore, this article contributes to the collection of scientiic data on the Oligochaeta in Brazilian continental aquatic environments.…”

Section: Discussionsupporting

confidence: 90%

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Oligochaeta (Annelida: Clitellata) associated to aquatic macrophytes in Brazil

et al. 2016

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ResumoOligochaeta (Annelida: Clitellata) associados a macróitas aquáticas no Brasil. Oligoquetos ainda são caracterizados como um grupo pouco estudado dentre os macroinvertebrados aquáticos e poucos estudos sobre sua ecologia foram realizados no Brasil. Assim, nosso estudo objetivou fornecer um panorama da associação entre Oligochaeta e macróitas, em ambientes aquáticos continentais brasileiros, por meio de uma revisão da literatura junto a um inventário de espécies associadas a macróitas aquáticas em lagoas marginais da represa Ribeirão das Anhumas (Américo Brasiliense-SP). Na revisão, analisamos 10 artigos, nos quais obtivemos dados sobre 41 espécies. Amostramos, ainda, cinco gêneros de macróitas, Egeria, Salvinia, Utricularia, Eleocharis e Ceratophyllum, em agosto e dezembro de 2012 e em março e abril de 2013, na represa Ribeirão das Anhumas. Registramos 21 espécies de Oligochaeta associadas a essas macróitas. Com os dados obtidos na revisão junto ao inventário da represa Ribeirão das Anhumas, evidenciamos o total de 41 espécies associadas a macróitas aquáticas, com maior riqueza da família Naididae (93,33%), seguida por Opistocystidae (4,44%) e Alluroididae (2,22%). Nosso estudo inventariou cerca de 48% da diversidade de Oligochaeta registrados em ecossistemas continentais no Brasil, destacando, assim, a importância das macróitas como recurso para esses invertebrados, principalmente para a família Naididae.Palavras-chave: Ecossistemas de água doce; Fauna associada; Lista de espécies; Microdrili AbstractOligochaeta are still characterized as a poorly studied group among the aquatic macroinvertebrates and few studies about their ecology were conducted in Brazil. Thus, our study aimed to provide an overview of the association between Oligochaeta and macrophytes, in Brazilian continental aquatic environments, by means of a literature review along with an inventory of species associated to aquatic macrophytes on marginal lagoons in the reservoir Ribeirão das Anhumas (Américo Brasiliense, São Paulo, Brazil). In the review, we analyzed 10 articles, where we obtained data on 41 species. We also sampled 5 macrophyte genera, Egeria, Salvinia, Utricularia, Eleocharis, and Ceratophyllum, in August and December 2012 and in March and April 2013, in the reservoir Ribeirão das Anhumas. We registered 21 Oligochaeta species associated to these macrophytes. With the data obtained in the review along with the inventory of the reservoir Ribeirão das Anhumas, we found a total of 41 species associated to aquatic macrophytes, with a higher richness of the Naididae family (93.33%), followed by Opistocystidae (4.44%), and Alluroididae (2.22%). Our study inventoried about 48% of the Oligochaeta diversity registered in continental ecosystems in Brazil, thus highlighting the signiicance of macrophytes as a resource for these invertebrates, mainly for the Naididae family.

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Section: Discussionsupporting

confidence: 90%

“…However, in general, the invertebrate fauna is still poorly documented when compared to other animal groups, such as mammals and birds (CHRISTOFFERSEN, 2010). The difficulties of taxonomic identification and the low popularity of these taxa among people make information about them fragmented and scarce (MAGURRAN, 2011).…”

Section: Introductionmentioning

confidence: 99%

Oligochaeta (Annelida: Clitellata) associated to aquatic macrophytes in Brazil

et al. 2016

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“…Some studies were carried out on the spatial distribution and ecology of this group in the Upper Paraná River floodplain (BEHREND et al, 2009;TAKEDA et al, 2004), but, using a completely different approach. In agreement with Christoffersen (2010), little is known about the aquatic oligochaetes of South America, therefore much research remains to be done regarding these invertebrates.…”

Section: Introductionmentioning

confidence: 78%

“…On the other hand, Narapa bonettoi and Haplotaxis aedeochaeta are found in velocity conditions and sandy sediments (MONTANHOLI-MARTINS;TAKEDA, 2001;BLETTLER et al, 2008;, characteristics of Paraná and Ivinhema rivers and Ipoitã Channel (ROCHA; SOUZA FILHO, 2005;CORRADINI et al, 2008), where they occurred. The species of occurrence restricted to some environments demonstrated more contribution to beta diversity through turnover components.…”

Section: Discussionmentioning

confidence: 99%

<b>Partitioning beta diversity of aquatic Oligochaeta in different environments of a Neotropical floodplain

Petsch

Ragonha

Gimenez

et al. 2015

Acta Sci. Biol. Sci.

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ABSTRACT. We tested the hypothesis that the contribution of the nestedness component is higher in environments with more similar features (lentic or lotic), whereas the contribution of the turnover component is higher in environments with more dissimilar features (lotic vs. lentic). To this end, we partitioned beta diversity of the Oligochaeta community into 12 environments of the Upper Paraná River floodplain. We recorded 986 individuals of 17 taxa. Through Redundancy Analysis, we observed a differentiation between lentic and lotic habitats both by environmental features as species composition. Our hypothesis was partially supported, because in environments with more similar hydrological characteristics, we observed a greater contribution of the nestedness component only in lentic environments, whereas in lotic environments, the turnover component showed a higher value. Moreover, when analyzed the different environments (lentic vs. lotic), we noticed a very similar contribution of both components. Some species were more frequent, as A. pigueti and P. americana, while others were exclusive to some environments (N. bonettoi and H. aedeochaeta). We evidenced the importance of each component in structuring Oligochaeta community, nonetheless, in a different way between environments with more similar (nestedness to lentic and turnover to lotic) or dissimilar (almost the same contribution of both) features.Keywords: turnover, nestedness, lentic, lotic, richness.Partição da diversidade beta de Oligochaeta aquático em diferentes ambientes de uma planície de inundação neotropical RESUMO. Nós testamos a hipótese de que a contribuição do componente aninhamento é maior em ambientes com características hidrológicas semelhantes (lênticos ou lóticos), enquanto o componente turnover é maior em ambientes com características mais diferentes (lótico vs. lêntico). Para tal, particionamos a diversidade beta da comunidade de Oligochaeta entre 12 ambientes da planície de inundação do alto rio Paraná. Registramos 986 indivíduos, consistindo em 17 táxons. Por meio da Análise de Redundância, observamos uma diferenciação entre ambientes lênticos e lóticos, tanto pelos fatores ambientais como também pelas espécies. Nossa hipótese foi parcialmente corroborada uma vez que em relação aos ambientes com características mais similares, observamos maior contribuição do componente aninhamento apenas nos ambientes lênticos, enquanto nos ambientes lóticos, o componente turnover foi maior. Ainda, ao analisarmos os ambientes mais diferentes, notamos uma contribuição muito semelhante de ambos os componentes. Algumas espécies foram mais frequentes, como A. pigueti e P. americana, enquanto outras foram exclusivas de alguns ambientes (N. bonettoi e H. aedeochaeta). Nós evidenciamos a importância de cada componente na estruturação da comunidade de Oligochaeta, no entanto, de uma forma diferente entre os ambientes com características mais semelhantes (aninhamento para lênticos e turnover para lóticos) ou diferentes (contribuição semelhante de ambos).Palavra...

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“…The majority of this diversity was contained within the family Naididae. The naidid annelids that were identified belong to globally common and widely distributed genera and species (Brinkhurst and Jamieson 1971, Martin et al 2008, Christoffersen 2010, Pinder 2010, Park and Yeon 2013). Though some showed slight morphological differences from published descriptions, these differences did not seem great enough to conclude that they might be new species.…”

Section: Discussionmentioning

confidence: 99%

The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas

Worsham¹,

Gibson²,

Huffman³

2016

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The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception of the report of one gastrotrich, and one subterranean platyhelminth that only incidentally occurs in the head spring outflows. The remainder of the soft-bodied metazoan fauna that inhabit the San Marcos River had never been studied. Our study surveyed the annelid fauna and some other soft-bodied invertebrates of the San Marcos River headsprings. At least four species of Hirudinida, two species of Aphanoneura, one species of Branchiobdellida, and 11 (possibly 13) species of oligochaetous clitellates were collected. Other vermiform taxa collected included at least three species of Turbellaria and one species of Nemertea. We provide the results of the first survey of the aquatic annelid fauna of the San Marcos Springs, along with a dichotomous key to these annelids that includes photos of some representative specimens, and line drawings to elucidate potentially confusing diagnostic structures.

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Continental biodiversity of South American oligochaetes: The importance of inventories.

Cited by 18 publications

References 30 publications

Oligochaeta (Annelida: Clitellata) associated to aquatic macrophytes in Brazil

Oligochaeta (Annelida: Clitellata) associated to aquatic macrophytes in Brazil

<b>Partitioning beta diversity of aquatic Oligochaeta in different environments of a Neotropical floodplain

The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas

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