Allochthonous Insects
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Effects of forest conversion on the assemblages' structure of aquatic insects in subtropical regions
The effects of forest conversion to agricultural land uses on assemblages of aquatic insects were analyzed in subtropical streams. Organisms and environmental variables were collected in six low-order streams: three streams located in a forested area, and three in areas converted to agricultural land uses. We expected that the aquatic insects' assemblage att
Rev. Bras. entomol.. Publicado em: 2015-03
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2. Feeding ecology of stream-dwelling Characidae (Osteichthyes: Characiformes) from the upper Tocantins River, Brazil
In this contribution we studied the trophic ecology of four Characidae species from the Cavalo Stream, upper Tocantins River, considering diet overlap and trophic niche breadth. The diet of the four species was composed of adult and immature insects, both autochthonous and allochthonous in origin. Autochthonous items dominated the diet of Moenkhausia dichrou
Zoologia (Curitiba). Publicado em: 06/12/2013
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3. Diet and reproductive dynamics of Trachelyopterus lucenai (Siluriformes: Auchenipteridae) in subtropical coastal lagoons in southern Brazil
This study analyzed the diet and reproductive dynamics of Trachelyopterus lucenai Bertoletti, Pezzi da Silva & Pereira, 1995, an allochthonous fish species in the subtropical coastal lagoons of the Tramandaí River, Rio Grande do Sul, Brazil. The fecundity of the species is described for the first time. Specimens were captured in the interconnected lagoons I
Zoologia (Curitiba). Publicado em: 2013-06
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4. Comparative dietary analysis of two populations of Mimagoniates rheocharis (Characidae: Glandulocaudinae) from two streams of Southern Brazil
As dietas de duas populações de Mimagoniates rheocharis pertencentes a dois corpos d’água do Sistema do rio Tramandaí, região nordeste do Rio Grande do Sul, Brasil, são descritas e comparadas. Os exemplares foram coletados mensalmente, entre janeiro de 1998 e março de 1999, com o auxílio de puçás e picarés e fixados em formol 10%. No laboratóri
Publicado em: 2010
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5. Caracterização e dinâmica trófica em um riacho íntegro de Mata Atlântica do Sul do Brasil
Esta pesquisa foi desenvolvida no ribeirão Varanal, ambiente íntegro, afluente do rio Tibagi, em Telêmaco Borba, PR. A fim de se conhecer a dinâmica trófica deste ecossistema, os objetivos do trabalho foram: descrever alguns atributos físicos que caracterizam um riacho em condições naturais, verificar os itens alimentares consumidos pelas espécies d
Publicado em: 2009
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6. Composição, abundância e dinâmica reprodutiva e alimentar de populações de peixes de um reservatório recém-formado (UHE - Capim Branco I / MG)
The loss of diversity is one of the main damage to the environment caused by the construction of reservoirs and it is related to the disappearance of terrestrial habitats by flooding, and the changes produced in the aquatic habitat. These changes reflect, above all, in the availability of food and in the reproduction of the fish species, leading to a remarka
Publicado em: 2008
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7. ComposiÃÃo, abundÃncia e dinÃmica reprodutiva e alimentar de populaÃÃes de peixes de um reservatÃrio recÃm-formado (UHE - Capim Branco I / MG)
The loss of diversity is one of the main damage to the environment caused by the construction of reservoirs and it is related to the disappearance of terrestrial habitats by flooding, and the changes produced in the aquatic habitat. These changes reflect, above all, in the availability of food and in the reproduction of the fish species, leading to a remarka
Publicado em: 2008