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Preliminary dragonfly (Odonata) species list from the Pampa biome in Rio Grande do Sul, Brazil, with ecological notes for 19 new records for the state
Universidade do Vale do Taquari, Bairro Universitário, Lajeado, RS, Brazil.
Universidade do Vale do Taquari, Bairro Universitário, Lajeado, RS, Brazil.
Universidade do Vale do Taquari, Bairro Universitário, Lajeado, RS, Brazil.
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
2017 (English)In: Biota Neotropica, ISSN 1806-129X, E-ISSN 1676-0611, Vol. 17, no 4, article id e20170374Article in journal (Refereed) Published
Abstract [en]

An inventory of Odonata was carried out in the southern half of the state of Rio Grande do Sul, Brazil, in the Pampa biome. Originally, this biogeographical region was covered mostly by open fields and grassland, with sections of higher vegetation surrounding water bodies and rocky hills. Today the landscape is fragmented due to agricultural activities, mainly cattle farming, rice crops and forest plantations. Our survey was conducted in three municipalities from this region, between March 2015 and April 2016. Aiming at a general overview of the species composition, our sampling sites were selected on a wide basis, including lakes, bogs, temporary water bodies, small streams and river sections. Eighty two species of Odonata were collected comprising 40 genera and seven families. The dominant families were Libellulidae (56,1%), Coenagrionidae (24,5%) and Aeshnidae (7,3%). We found a diverse odonate assemblage, adding 19 new species records for the state of Rio Grande do Sul.

Abstract [pt]

Um inventário de Odonata foi desenvolvido na metade Sul do estado do Rio Grande do Sul, Brasil, no Bioma Pampa. Originalmente, esta região biogeográfica era coberta principalmente por campos abertos e pastagens, com seções de vegetação mais alta nas imediações de corpos d’água e elevações rochosas. Atualmente a paisagem se encontra fragmentada devido a atividade agrícola, entre as principais, a criação de gado, cultivo de arroz e silvicultura. A pesquisa foi desenvolvida em três municípios da região, entre Março de 2015 e Abril de 2016. Buscando uma visão geral da composição de espécies, os locais de amostragem selecionados incluíram lagos, banhados, corpos d’água temporários e seções de rio. Oitenta e duas espécies foram coletadas compreendendo 40 gêneros e 7 famílias. As famílias dominantes foram Libellulidae (55,1%), Coenagrionidae (24,5%) e Aeshnidae (7,3%). Nós encontramos uma grande diversidade nas comunidades de Odonata, adicionando 19 novos registros de espécies para o estado do Rio Grande do Sul.

Place, publisher, year, edition, pages
Campinas: Centro de Referencia em Informacao Ambiental , 2017. Vol. 17, no 4, article id e20170374
Keyword [en]
Anthropogenic threats, ecology, grassland, Neotropics, southern fields
Keyword [pt]
Ameaças antropogênicas, ecologia, pastagens, região neotropical, campos sulinos
National Category
Ecology
Identifiers
URN: urn:nbn:se:hh:diva-35430DOI: 10.1590/1676-0611-bn-2017-0374OAI: oai:DiVA.org:hh-35430DiVA: diva2:1163743
Note

Funding: UNIVATES

Available from: 2017-12-07 Created: 2017-12-07 Last updated: 2017-12-14Bibliographically approved

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Sahlén, Göran

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