Composição de Heteroptera aquáticos e semi-aquáticos na área de abrangência da U.H.E. Dona Francisca, RS, Brasil: fase de pré-enchimento

Neri, Damaris Battistel; Kotzian, Carla Bender; Siegloch, Ana Emília

doi:10.1590/s0073-47212005000400013

Cited by 15 publications

(19 citation statements)

References 9 publications

(9 reference statements)

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“…This study presents an inventory of the genera of odonate larvae found in streams and artificial farm ponds, in the middle course of the Jacuí River. This river runs in a montane region which contains a well diversified macroinvertebrate community (see Neri et al 2005 for Heteroptera; Spies et al 2006 for Trichoptera;Siegloch et al 2008 for Ephemeroptera; Floss et al 2012, for Chironomidae). Differences in the community structure of lotic and lentic environments were also investigated, in order to contribute to the initial understanding of the importance and influence of reservoirs on odonates biodiversity.…”

Section: Introductionmentioning

confidence: 99%

Diversity of Odonata (Insecta) larvae in streams and farm ponds of a montane region in southern Brazil

et al. 2013

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This study presents an inventory of the genera of Odonata found in streams and artificial farm ponds in a montane region, with temperate climate, in southern Brazil. Differences in richness of lotic and lentic environments were also investigated. The diversity of odonate families and genera in southernmost Brazil is lower than in warmer, either tropical or subtropical, regions of the country. Nine genera are new records for the region and six genera had their geographical ranges extended to regions with temperate climate of the Neotropics. The overall richness and especially the overall abundance recorded in the studied area are possibly determined by the occurrence of numerous farm ponds because natural standing waters are scarce in the region. The presence of macrophytes in these artificial ponds allowed the establishment of a diversified odonatofauna, typical of lentic environments. Resumo: Este estudo apresenta um inventário de gêneros de Odonata de riachos e reservatórios artificiais de uma região montanhosa de clima temperado no extremo sul do Brasil. Diferenças na riqueza de ambientes lóticos e lênticos também foram investigadas. A diversidade de famílias e gêneros de Odonata no extremo sul do Brasil é menor que em regiões mais quentes, tanto tropicais quanto subtropicais, do país. Nove gêneros são novos registros para a região e seis gêneros tiveram suas distribuições geográficas de ocorrência estendidas para áreas temperadas da região Neotropical. A riqueza e a abundância verificadas na área de estudo possivelmente foram determinadas pela ocorrência de numerosos reservatórios artificiais, pois áreas lênticas naturais são raras na região. A presença de macrófitas nestes reservatórios permitiu o estabelecimento de uma fauna de Odonata diversificada e típica de ambientes lênticos. Palavras-chave: libélulas, inventário, região Neotropical, reservatórios, fauna lótica.

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Section: Introductionmentioning

confidence: 99%

Diversity of Odonata (Insecta) larvae in streams and farm ponds of a montane region in southern Brazil

et al. 2013

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“…The middle course, where this study was conducted, is located in altitudes ranging from 50 to 500 m (Marchiori et al 1982), showing a rugged landscape. Rivers are of 1 st to 7 th order, according to Strahler (1952) classification, and their beds are constituted mainly by gravels, cobbles and boulders (Neri et al 2005). Aquatic vegetation is scarce, but Podostemum can be common in certain stretches (Spies et al 2006, Floss et al 2012.…”

Section: Study Areamentioning

confidence: 99%

“…Previous studies show that this region contains a very diversified macroinvertebrate assemblage (Neri et al 2005, Spies et al 2006, Siegloch et al 2008, Floss et al 2012, due to its location in a transitional relief area, and also to the occurrence of the incrusting aquatic macrophyte Podostemum A. Michaux, 1803 (Floss et al 2012). Besides, the middle Jacuí course has part of its marginal areas protected by a state park, Parque Estadual da Quarta Colô nia (PEQC).…”

Section: Introductionmentioning

confidence: 99%

Diversity and distribution of riffle beetle assemblages (Coleoptera, Elmidae) in montane rivers of Southern Brazil

et al. 2014

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., SPIES, M.R., PIRES, M.M. Diversity and distribution of riffle beetle assemblages (Coleoptera, Elmidae) in montane rivers of Southern Brazil. Biota http://dx.doi.org/10.1590/1676-060320140615183046Abstract: The diversity and spatio-temporal distribution of Elmidae (Coleoptera) assemblages in montane rivers and streams of southernmost Brazil (Rio Grande do Sul state) were studied. Six genera were found, represented mostly by larval specimens. Austrolimnius and Macrelmis are new occurrences in the region. Assemblages' genera composition and dominance were related to the presence of the macrophyte Podostemum. Also, water temperature and stream depth and velocity were the most important drivers related to the assemblages' distribution. Richness and abundance were positively related to high water velocity and negatively to stream depth. Temporal patterns were detected especially in assemblage abundance, yet a slight pattern in richness was also observed. The seasonal structure was related to warm temperatures, but temporal distribution of Elmidae assemblages appears to be related to the dominant genera life cycles. The studied area shows an overall Elmidae richness similar to that found in some tropical areas and the role of mountainous environments in sustaining high rates of regional diversity in the Neotropics is stated. Keywords: aquatic insects, streams, Neotropical region.

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“…Heteroptera é um grupo predador, encontrado em todos os ambientes (neRi et al 2005), tendo indivíduos aquáticos representados por Nepomorpha e semi-aquáticos representados por Gerromorpha (nieseR & Melo 1997). Esses organismos vivem em remansos de rios, riachos, lagos e pântanos (Roldán-PéRez 1988) e apresentam baixa resistência a correntezas rápidas.…”

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Distribuição de Heteroptera Aquáticos (Insecta) em Diferentes Tipos de Substratos de Córregos do Cerrado Matogrossense

et al. 2013

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A comunidade de Heteroptera de córregos do cerrado do Leste Matogrossense foi analisada para determinar os tipos de substratos que contemplam a maior variação de composição de espécies. Foram realizadas coletas nos substratos de folhiço de corredeira e remanso, raiz, cascalho, pedra (matacão), areia e na superfície d’água (camada de tensão superficial) das nascentes, trechos médios e foz dos córregos Santo Antônio e Colher em dezembro/2004 e julho/2005, com cada substrato representado por seis subamostras. Foram coletados 333 indivíduos distribuídos em 11 famílias, 20 gêneros e 30 morfoespécies (17 Nepomorpha e 13 Gerromorpha), sendo os Gerromorpha mais abundantes (172 indivíduos). A riqueza estimada de Gerromorpha nos substratos foi superior em coletas na superfície d’água, enquanto Nepomorpha apresentou maior riqueza em raiz, seguido por cascalho e folhiço de corredeira. Os substratos inorgânicos (pedra e areia) apresentaram reduzida riqueza de Heteroptera. Entre os Gerromorpha, Limnogonus aduncus aduncus Drake & Harris, Rhagovelia elegans Uhler, Neogerris lubricus White e Brachymetra sp.1 foram associados com coletas de superfície e Stridulivelia anta Polhemus & Spangler com substrato raiz. Em Nepomorpha, Martarega chinai Hynes foi associado com coletas de superfície, enquanto que Ambrysus sp. 1 mostrou associação ao folhiço de corredeira, de remanso, raiz e superfície. Com esses resultados ressaltamos que trabalhos que visem levantamentos rápidos da comunidade de Heteroptera devem priorizar coletas de superfície para Gerromorpha e de raiz para Nepomorpha, pois esses substratos abrigam as maiores riquezas de cada infraordem, contemplando 83% e 64% da riqueza de espécie desses grupos respectivamente. Distribution of Aquatic Heteroptera (Insecta) From Different Types of Streams Substrate of Cerrado in Mato Grosso Abstract. The Heteroptera community of Cerrado streams in east of Mato Grosso was analyzed to determine the types of substrate that contemplate the largest variation in species composition. Samples were performed in the leaf litter substrates from rapids and backwaters, root, gravel, stone (boulder), sand and on the water surface (surface tension layer) of springs, mean stretches and mouths of the Santo Antônio and Colher streams on December/2004 and July/2005, with six subsamples each substrate. Were collected 333 specimens distributed in 11 families, 20 genus and 30 morphospecies (17 Nepomorpha and 13 Gerromorpha), being Gerromorpha the most abundant (172 specimens). The estimated richness of Gerromorpha in the substrates was higher in samples from water surface, while Nepomorpha showed higher richness in root, followed by gravel and leaf litter from rapids. The inorganic substrates (stone and sand) showed lower richness of Heteroptera. Among Gerromorpha, Limnogonus aduncus aduncus Drake & Harris, Rhagovelia elegans Uhler, Neogerris lubricus White and Brachymetra sp.1 were associated to surface samples and Stridulivelia anta Polhemus & Spangler to root substrate. In Nepomorpha, Martarega chinai Hynes was associated to surface samples, while Ambrysus sp. 1 showed association to leaf litter from rapids, backwaters, root and surface. The results suggest that studies which aim for rapid surveys of Heteroptera community should prioritize surface samples for Gerromorpha and root samples for Nepomorpha, because these substrates shelter the greatest richness of each infra-order, contemplating 83% and 64% of species richness in these groups respectively.

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Composição de Heteroptera aquáticos e semi-aquáticos na área de abrangência da U.H.E. Dona Francisca, RS, Brasil: fase de pré-enchimento

Cited by 15 publications

References 9 publications

Diversity of Odonata (Insecta) larvae in streams and farm ponds of a montane region in southern Brazil

Diversity of Odonata (Insecta) larvae in streams and farm ponds of a montane region in southern Brazil

Diversity and distribution of riffle beetle assemblages (Coleoptera, Elmidae) in montane rivers of Southern Brazil

Distribuição de Heteroptera Aquáticos (Insecta) em Diferentes Tipos de Substratos de Córregos do Cerrado Matogrossense

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