dung beetles (coleoptera: scarabaeoidea) in three landscapes in mato grosso do sul, brazil besouros coprófagos (coleoptera: scarabaeoidea) em três paisagens de mato grosso do sul, brasil

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ID: 204377
2013
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Abstract
Dung beetles (Coleoptera: Scarabaeoidea) in three landscapes in Mato Grosso do Sul, Brazil. Dung Beetles are important for biological control of intestinal worms and dipterans of economic importance to cattle, because they feed and breed in dung, killing parasites inside it. They are also very useful as bioindicators of species diversity in agricultural or natural environments. The aims of this paper were to study the species richness, and abundance of dung beetles, helping to answer the question: are there differences in the patterns of dung beetle diversity in three environments (pasture, agriculture and forest) in the municipality of Dourados, in the state of Mato Grosso do Sul. A total of 105 samplings were carried out weekly, from November 2005 to November 2007, using three pitfall traps in each environment. The traps were baited with fresh bovine dung, and 44,355 adult dung beetles from 54 species were captured: two from Hyborosidae and 52 from Scarabaeidae. Five species were constant, very abundant and dominant on the pasture, two in the agricultural environment, and two in the environment of Semideciduous forest. Most of the species were characterised as accessories, common and not-dominant. The species with higher abundance was Ataenius platensis Blanchard, 1844. The indexes of Shannon-Wiener diversity were: 2.90 in the pasture, 2.84 in the agricultural environment and 2.66 in the area of native forest. The medium positive presence of dung beetles in the traps in each environment were: 36.88, 42.73 and 20.18 individuals per trap, in the pasture, agricultural environment and in the native forest, respectively. The pasture environment presented a higher diversity index. The species diversity of dung beetles was superior where there was higher abundance and regularity of resource (bovine dung).
Coleópteros coprófagos são importantes (especialmente Scarabaeidae) para controle biológico de vermes gastrointestinais e de dípteros; dessa forma, são de importância econômica para a pecuária, pois esses besouros utilizam excrementos como alimento e sítio para reprodução. Eles são também de grande utilidade como bioindicadores da diversidade. O objetivo deste trabalho foi avaliar a riqueza em espécies e a abundância de besouros coprófagos, além de verificar se estes atributos são diferentes nos três ambientes (pastagem, agricultura e mata), no município de Dourados-MS. Foram realizadas 105 avaliações semanais, de novembro de 2005 a novembro de 2007, utilizando-se três armadilhas "pitfall" em cada ambiente. Estas foram iscadas com fezes frescas de bovinos. Foram coletados 44.355 adultos de 54 espécies: duas de Hyborosidae e 52 de Scarabaeidae. Cinco espécies foram constantes, muito abundantes e dominantes na pastagem, duas na área agrícola e duas na mata. A maioria das espécies foi considerada acessória, comum e não dominante. A espécie que apresentou maior abundância foi Ataenius platensis Blanchard, 1844. Os índices de diversidade de Shannon-Wiener foram: 2,90, na pastagem; 2,84, na área agrícola, e 2,66, na mata. A presença média de coleópteros coprófagos nas armadilhas positivas nos três ambientes, em indivíduos por armadilha, foi 36,88 (pastagem), 42,73 (área agrícola) e 20,18 (mata). O ambiente de pastagem apresentou maior índice de diversidade. A diversidade foi maior onde houve maior abundância e regularidade de alimentos.
Reference Key
rodrigues2013braziliandung Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;MM. Rodrigues;MA. Uchôa;S. Ide
Journal international journal of economic and environment geology
Year 2013
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000100023
Keywords
Biodiversity coleoptera population ecologysciencebiology (general)zoologybotany

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