The Drosophila community in xerophytic vegetations of the upper Parana-Paraguay river basin

Mateus, Rogério Pincela; Buschini, Maria Luisa Tunes; Sene, Fábio de Melo

doi:10.1590/s1519-69842006000400016

Cited by 33 publications

(31 citation statements)

References 11 publications

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“…In contrast, the typical forestdwelling species of the group were rare. Similarly, D. mediostriata, found both in savannas and gallery forests by TIDON (2006) and in xerophytic vegetation by MATEUS et al (2006), was by far the most abundant species of the tripunctata group, while its forest relatives were much rarer. Even in the willistoni group, the most common species in the mangroves were D. willistoni and D. paulistorum (willistoni subgroup), which, in spite of being more abundant in the forests (SAAVEDRA et al, 1995;TIDON, 2006), are still the most abundant of the group also in other environments (SILVA et al, 2005;TIDON, 2006).…”

Section: P=0806) E Varmentioning

confidence: 96%

Assemblages of drosophilids (Diptera, Drosophilidae) in mangrove forests: community ecology and species diversity

Schmitz

Hofmann

Valente

2010

Iheringia, Sér. Zool.

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ABSTRACT. Brazilian fauna of drosophilids has been researched in various ecosystems, but those in mangrove forests remain overlooked in Brazil and elsewhere. The present study attempts to characterise the assemblages of drosophilids of this environment, based on 28 collections taken in three mangrove areas in Santa Catarina Island, southern Brazil. The three mangroves surveyed were different in their surroundings, which varied from highly urbanised areas to conservation areas with natural vegetation. Overall, 69 species were collected, and no remarkable difference was detected in species composition and abundances or in the richness, evenness and heterogeneity between sites. The species abundance distribution observed fitted to a theoretical lognormal distribution in the three mangroves. The species richness scored and the performance of the species richness estimators showed an unexpectedly high diversity, considering the very low floristic diversity and the harsh conditions of the environment. Regarding species composition and abundances, the drosophilid mangrove assemblages were shown to be more similar to those found in open environments, with a marked dominance of exotic species. Finally, considering the apparent lack of feeding and breeding sites, we suggest that mangrove forests are acting as sink habitats for the drosophilids populations.KEYWORDS. Biodiversity, diversity measures, Drosophila, Neotropical region, source-sink hypothesis.RESUMO. Assembléias de drosofilídeos (Diptera, Drosophilidae) em manguezais: ecologia de comunidades e diversidade de espécies. A fauna brasileira de drosofilídeos tem sido estudada em vários ecossistemas, mas os manguezais têm sido negligenciados a esse respeito no Brasil e em todo o mundo. O presente estudo traz uma caracterização das assembléias de drosofilídeos neste ambiente, baseando-se em 28 coletas realizadas em três áreas de manguezais na ilha de Santa Catarina, sul do Brasil. Os três manguezais estudados apresentam diferenças marcantes quanto aos ambientes que os cercam, desde regiões altamente urbanizadas até áreas de proteção ambiental com vegetação natural. Ao todo, 69 espécies foram coletadas, e nenhuma diferença marcante foi detectada na composição e abundância das espécies, bem como na riqueza, equitabilidade e heterogeneidade entre os locais. A distribuição de abundância de espécies encontrada ajustou-se a uma distribuição teórica lognormal nos três manguezais. A riqueza de espécies observada e o desempenho de estimadores de riqueza de espécies mostraram uma inesperada alta diversidade, considerando a baixa diversidade florística e as condições hostis do ambiente. A respeito da composição e abundância de espécies, as assembléias de drosofilídeos dos manguezais mostraram-se mais similares àquelas encontradas em ambientes relativamente mais abertos, com grande dominância de espécies exóticas. Finalmente, considerando-se a aparente escassez de sítios de alimentação e oviposição do ambiente, sugere-se que os manguezais estejam agindo como "sink habitats" para a...

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Section: P=0806) E Varmentioning

confidence: 96%

Assemblages of drosophilids (Diptera, Drosophilidae) in mangrove forests: community ecology and species diversity

Schmitz

Hofmann

Valente

2010

Iheringia, Sér. Zool.

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“…Drosophila ornatifrons (also cited under its junior synonym, D. guarani Dobzhansky & Pavan, 1943) was formerly believed to be endemic to the Atlantic Forest biome of Brazil (SENE et al 1980). However, later on, it was collected in gallery forests, xerophitic enclaves, highland rocky fields and other transitional areas between the Atlantic Forest and adjacent biomes (ARAÚJO & VALENTE 1981, TIDON-SKLORZ et al 1994, VILELA & MORI 1997, MATEUS et al 2006, TIDON 2006. It was also recorded from Colombia, Bolivia and Ecuador (RAFAEL & VELA 2000).…”

Section: Discussionmentioning

confidence: 99%

Species of Drosophila (Diptera: Drosophilidae) attracted to dung and carrion baited pitfall traps in the Uruguayan Eastern Serranías

Goñi¹,

Remedios²,

González-Vainer³

et al. 2012

Zoologia (Curitiba)

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This study investigates the species richness and abundance of Drosophila Fallén, 1823 attracted to dung and carrion baited pitfall traps in natural areas with heterogeneous habitats at the Sierra de Minas, Eastern Serranías, southeastern Uruguay. Collecting was carried out on a monthly basis (May 2002 through April 2003). Drosophilids accounted for 0.84% (n = 131) and 3.61% (n = 158) of the Diptera collected from dung (n = 15,630) and carrion (n = 4,382) pitfall traps, respectively. A total of 12 species were identified, 11 of which belong to the subgenus Drosophila (the richest) and one to the subgenus Sophophora Sturtevant, 1939. Over 90% of the Drosophila specimens collected belong to five species of the subgenus Drosophila, namely D. gaucha Jaeger & Salzano, 1953, D. immigrans Sturtevant, 1921, D. mediovittata Frota-Pessoa, 1954, D. aff. nappae Vilela, Valente & Basso-da-Silva, 2004, and D. ornatifrons Duda, 1927. Drosophila cardini Sturtevant, 1916 is recorded for the first time from Uruguay. Drosophila abundance and species richness in the four habitats sampled in the Uruguayan Eastern Serranías, namely woodlands sierra, riparian forest, pine plantation and grazing grassland, were considered to be a function of habitat conservation. Diversity indices were low in all habitats. Different habitats supported particular coprophilous and necrophilous Drosophila species. The woodland sierra represents the most preserved habitat, and contributed with the highest species richness observed. Drosophila ornatifrons was the dominant species, with a restricted habitat distribution. On the other hand, grazed grassland, an environment modified by livestock management, had the lowest species richness: only a few specimens of D. repleta Wollaston, 1858. Regarding species composition, significant differences were found in some pairwise comparisons of groups of Drosophila species that included D. ornatifrons. Fly attraction to dung can be exploited as an alternative and/or complementary collecting method in ecological studies of Drosophila assemblages in natural areas

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“…El género Drosophila es el más abundante dentro de la familia y comprende alrededor del 53 % del total de especies; de ellas algunas son endémicas otras subcosmopolitas y varias poseen una distribución cosmopolita (Mateus et al, 2006 …”

Section: Introductionunclassified

Diversidad del género Drosophila (Diptera, Drosophilidae) en la quebrada de Cruz Loma, Pichincha, Ecuador

Céspedes¹,

Rafael²

2017

REMCB

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The Drosophila community in xerophytic vegetations of the upper Parana-Paraguay river basin

Cited by 33 publications

References 11 publications

Assemblages of drosophilids (Diptera, Drosophilidae) in mangrove forests: community ecology and species diversity

Assemblages of drosophilids (Diptera, Drosophilidae) in mangrove forests: community ecology and species diversity

Species of Drosophila (Diptera: Drosophilidae) attracted to dung and carrion baited pitfall traps in the Uruguayan Eastern Serranías

Diversidad del género Drosophila (Diptera, Drosophilidae) en la quebrada de Cruz Loma, Pichincha, Ecuador

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