Species composition and diel variation of a butterfly taxocene (Lepidoptera, Papilionoidea and Hesperioidea) in a restinga forest at Itapuã State Park, Rio Grande do Sul, Brazil

Abstract

ABSTRACT. The composition and the hourly variation of butterfly species (Lepidoptera: Papilionoidea and Hesperioidea) throughout the day and the seasons was evaluated in a 1,000 m 2 patch of sandy forest (Restinga forest) on a coastal plain at Itapuã State Park (30º22'S, 51º02'W), Viamão, Rio Grande do Sul, from July 2001 to June 2002. Butterflies were sampled by scanning and focal observations (adapted from ALTMANN 1974) carried out at successive 45 minutes intervals. This methodology proved to be effective in recording the presence and activity of butterflies on a small area. A total of 108 observation hours yielded 326 butterflies from 41 species, 33 genera and five families. Nymphalidae was the most abundant family contributing with 74% of the total individuals. The most abundant species was Eunica eburnea Fruhstorfer, 1907 (Nymphalidae) with 45 individuals registered along the year. General diversity estimates were Dmg = 6.912, H' = 3.012 and d = 0.138. Although there were variations in the daily times of butterfly activity throughout the seasons, there was a general trend for higher activity during the morning period, between 9:00 and 11:45 h.

Diversidade de Lepidoptera (Papilionoidea e Hesperioidea) em dois fragmentos de floresta no município de Frederico Westphalen, Rio Grande do Sul, Brasil

“…Uma comparação da riqueza de espécies por família observadas entre registros para o Brasil (Brown Jr. & Freitas 1999) (sem identificação do esforço), para o Vale do Rio Maquiné (RS) (Iserhard & Romanowski 2004) (238 horas-rede), Parque Estadual de Itapuã (RS) (Marchiori & Romanowski 2006) (108 horas-rede) e o presente trabalho (140 horas-rede) mostra valores diferentes em relação ao Brasil e semelhantes ao Rio Grande do Sul (Tabela II). Emery et al (2006), para Papilionoidea, no Distrito Federal, obteve 19 subfamílias, valor semelhante ao presente trabalho com 21 subfamílias, sendo 19 de Papilionoidea e 2 de Hesperioidea (Fig.…”

Diversidade de borboletas (Lepidoptera, Papilionoidea e Hesperioidea) em fragmentos de Floresta Estacional Decidual em Santa Maria, Rio Grande do Sul, Brasil

“…Foi feita uma curva de suficiência amostral, a partir dos dados de número de espécies obtidas em cada ocasião amostral, utilizando-se o programa estatístico EstimateS (COLWELL 2005 (BIEZANKO 1963, BIEZANKO & MIELKE 1973, BIEZANKO et al 1978, BROWN JR 1992, MIELKE & CASAGRANDE 1997 (BIEZANKO & FREITAS 1938, BIEZANKO 1949, 1960b, c, d, e, TESTON & CORSEUIL 2001, 2002a, b, KRÜGER & SILVA 2003, ISERHARD & ROMANOWSKI 2004, MARCHIORI & ROMANOWSKI 2006 (BIEZANKO et al 1978, KRÜGER & SILVA 2003, ISERHARD & ROMANOWSKI 2004. Doze espécies de Papilionidae e oito de Pieridae foram registradas no presente trabalho, nenhuma constituindo-se em registro novo para o Rio Grande do Sul (BIEZANKO & FREITAS 1938, BIEZANKO 1958, 1959a, b, 1960a, TESTON & CORSEUIL 1998, 2000a, b, KRÜGER & SILVA 2003, ISERHARD & ROMANOWSKI 2004.…”

“…I). A maioria dessas espécies possui ampla distribuição, sendo comuns em vários habitats e características de locais semi-abertos ou perturbados (BROWN JR 1992, MARCHIORI & ROMANOWSKI 2006, como observado em alguns trechos dos locais estudados. Diversidade, Dominância e Similaridade…”

Drivers of species richness and abundance of butterflies in coffee–banana agroforests in Uganda

“…Consequently, their conservation is essential to sustaining the productivity of natural and agricultural landscapes. Despite their diversity, ubiquity and ecological importance, butterflies remain relatively little studied, particularly with regard to their ecology, behaviour and functional role in farmland habitats (Marchiori and Romanowski 2006;Stireman et al 2009). In agricultural systems, butterflies are suspected to be important pollinators of wild and cultivated crop species (Munyuli 2010).…”