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Effects of exotic tree plantations on the richness of dragonflies (Odonata) in Atlantic Forest, Rio Grande do Sul, Brazil
Lab de Evolução e Ecologia, Centro Universitário Univates, Lajeado, RS, Brazil.
Lab de Evolução e Ecologia, Centro Universitário Univates, Lajeado, RS, Brazil.
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
2016 (English)In: International Journal of Odonatology, ISSN 1388-7890, Vol. 19, no 4, 207-219 p.Article in journal (Refereed) Published
Abstract [en]

One of the forest types occurring in Southern Brazil is the mixed ombrophilous forest (MOF), a subtype of the Atlantic Forest, which is one of the richest biomes on Earth. This biome currently remains as a highly fragmented mosaic, under pressure from human development. The diversity and ecology of most animal groups in this biome are poorly known. We studied Odonata in a large forest fragment, including an ecological reserve: the Floresta Nacional de São Francisco de Paula (FLONA-SFP), in Rio Grande do Sul, administrated by the Brazilian government. The reserve is dominated by MOF with sectors of Pinus elliottii and Araucaria angustifolia. Three surveys of these forest sectors over one year yielded 42 species, with the highest species richness recorded in the P. elliottii sector. The odonate species recorded here are all generalist in terms of habitat preferences, but they appeared only in low numbers and were very particular in their occurrence pattern. We therefore assume that the introduction of an alien element in the Atlantic Forest has given rise to a new species assemblage, where the ecology of the species is adapted to the novel habitat of Pinus plantations. As expected, the species occurring in the MOF sectors were mainly habitat specialists. The Araucaria plantations had an intermediate species composition. Despite the differences observed in habitat preference between generalist and specialist species, such exotic plantation habitats may act as a temporary biodiversity reservoir for further habitat colonization. © 2016 Worldwide Dragonfly Association

Place, publisher, year, edition, pages
Abingdon: Taylor & Francis, 2016. Vol. 19, no 4, 207-219 p.
Keyword [en]
Araucaria, conservation, dragonfly, ecology, generalist, Pinus, species composition
National Category
Ecology
Identifiers
URN: urn:nbn:se:hh:diva-32450DOI: 10.1080/13887890.2016.1251343ISI: 000390317300004Scopus ID: 2-s2.0-85000797845OAI: oai:DiVA.org:hh-32450DiVA: diva2:1047920
Note

Funding: CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) & Univates Centro Universitário.

Available from: 2016-11-18 Created: 2016-11-18 Last updated: 2017-11-30Bibliographically approved

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