Effect of edge on the dynamics of beetle in a fragment of the Atlantic Forest

Bianca Caitano Brito-Silva, Welber da Costa Pina, Alessandro Oliveira Silva

Abstract


The aim of this research was to characterize the coleopterofauna regarding the distribution, family richness and trophic groups, in addition to evaluate the response in relation to the extension of the edge effect. Bimonthly samples were collected from November 2012 to May 2013, with pitfall traps of the type without bait.These were allocated to three transects perpendicular to the edge, equidistant by 50 meters, each featuring 10 traps separated by 100 meters, and the sense of the edge of the transect to the conserved forest, resulting in 30 samples.We collected 3959 individuals distributed in 13 families from which the most abundant were Ptiliidae (34%), Scarabaeidae (29,7%), Staphylinidae (17,1%), Curculionidae (9%) and Nitidulidae (6,4%). A non-monotonic pattern was observed for the richness and abundance of the families. The most representative trophic groups were the fungivorous (35.9%), scavengers (30.6%) and predators (17.8%). Only the distribution of detritivores was significantly affected by the edge effect. Possibly the fragment is stabilized due to the age of the edge and the effect is not evident. This work is therefore another important contribution to the subject still little known and complex to be studied given the particularities presented by different taxa and different types of edge.

Keywords


Bioindicators; Forest Fragmentation; Trophic Groups; Coleoptera



DOI: https://doi.org/10.5902/2316980X22033

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Ecologia e Nutrição Florestal/Ecology and Forest Nutrition by www.ufsm.br/enflo is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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AGRIS/CARIS, AGROBASE/BINAGRI, LATINDEX, REDE CARINIANA, DOAJ, EZB, PERIÓDICOS CAPES, TIB, CAB ABSTRACT, DIADORIM.

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General DOI: 10.5902 / 2316980X (the specifics are in the ABSTRACTS - click on the article title, in summary)

"The papers published in the journal Ecology and Forest Nutrition / Ecology and Forest Nutrition are the responsibility of the authors and do not necessarily represent the opinion of the editors. The article reproduction is allowed, however citation the source ".