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Seasonality in the dung beetle community in a Brazilian tropical dry forest: Do small changes make a difference?

Medina AM, Lopes PP - J. Insect Sci. (2014)

Bottom Line: Dry-season samples (EDS and LDS) had lower richness, with no significant difference between the dry seasons.Species composition changes were found in non-metric multidimensional scaling and sustained by analysis of similarity.As in other tropical dry forests, although to a lesser extent, the dung beetle community of this fragment responded to rainfall seasonality with changes in species composition and reduced species richness.

View Article: PubMed Central - PubMed

Affiliation: Postgraduate Program in Zoology (Programa de Pos-Graduacao em Zoologia), State University of Feira de Santana, (Universidade Estadual de Feira de Santana: UEFS), Av. Transnordestina s/n, 44036-900, Feira de Santana, Bahia, Brazil bojaum@gmail.com.

No MeSH data available.


Related in: MedlinePlus

Rainfall precipitation (mm) during 10 and 11 April. Early dry season (EDS) corresponds to July 2010, late dry season (LDS) to October 2010, early wet season (EWS) to January 2011, and middle wet season (MWS) to April 2011.
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f01_01: Rainfall precipitation (mm) during 10 and 11 April. Early dry season (EDS) corresponds to July 2010, late dry season (LDS) to October 2010, early wet season (EWS) to January 2011, and middle wet season (MWS) to April 2011.

Mentions: Dung beetles were sampled using baited pitfall traps made from a plastic bin with a diameter of 14 cm and a depth of 10 cm. To avoid an edge effect, we set up a grid in the middle of the fragment at a minimum distance of 30 m from the border. The grid was arranged in rows of 4 × 4, evenly interspersed at a distance of 25 m, providing 16 sampling points. Each sampling point had four pitfalls placed at a distance of 2 m, which were baited with 25 mL of human dung, carrion (bovine spleen decayed for two days), cow dung, and rotten bananas, to maximize the sampling of specimens due to different feeding habits. The traps remained in the field for 48 h, after which they were emptied. This protocol was applied in the early dry season (EDS), late dry season (LDS), early wet season (EWS), and middle wet season (MWS), in July and October 2010 and January and April 2011, respectively (Fig. 1). Dung beetles were identified using a key for genera (Vaz-de-Mello et al. 2011) and making comparisons with specimens of identified species in the Johan Becker entomological collection of the Museum of Zoology of the State University of Feira de Santana (Museu de Zoologia da UEFS: MZFS), and by consulting specialists.


Seasonality in the dung beetle community in a Brazilian tropical dry forest: Do small changes make a difference?

Medina AM, Lopes PP - J. Insect Sci. (2014)

Rainfall precipitation (mm) during 10 and 11 April. Early dry season (EDS) corresponds to July 2010, late dry season (LDS) to October 2010, early wet season (EWS) to January 2011, and middle wet season (MWS) to April 2011.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4222309&req=5

f01_01: Rainfall precipitation (mm) during 10 and 11 April. Early dry season (EDS) corresponds to July 2010, late dry season (LDS) to October 2010, early wet season (EWS) to January 2011, and middle wet season (MWS) to April 2011.
Mentions: Dung beetles were sampled using baited pitfall traps made from a plastic bin with a diameter of 14 cm and a depth of 10 cm. To avoid an edge effect, we set up a grid in the middle of the fragment at a minimum distance of 30 m from the border. The grid was arranged in rows of 4 × 4, evenly interspersed at a distance of 25 m, providing 16 sampling points. Each sampling point had four pitfalls placed at a distance of 2 m, which were baited with 25 mL of human dung, carrion (bovine spleen decayed for two days), cow dung, and rotten bananas, to maximize the sampling of specimens due to different feeding habits. The traps remained in the field for 48 h, after which they were emptied. This protocol was applied in the early dry season (EDS), late dry season (LDS), early wet season (EWS), and middle wet season (MWS), in July and October 2010 and January and April 2011, respectively (Fig. 1). Dung beetles were identified using a key for genera (Vaz-de-Mello et al. 2011) and making comparisons with specimens of identified species in the Johan Becker entomological collection of the Museum of Zoology of the State University of Feira de Santana (Museu de Zoologia da UEFS: MZFS), and by consulting specialists.

Bottom Line: Dry-season samples (EDS and LDS) had lower richness, with no significant difference between the dry seasons.Species composition changes were found in non-metric multidimensional scaling and sustained by analysis of similarity.As in other tropical dry forests, although to a lesser extent, the dung beetle community of this fragment responded to rainfall seasonality with changes in species composition and reduced species richness.

View Article: PubMed Central - PubMed

Affiliation: Postgraduate Program in Zoology (Programa de Pos-Graduacao em Zoologia), State University of Feira de Santana, (Universidade Estadual de Feira de Santana: UEFS), Av. Transnordestina s/n, 44036-900, Feira de Santana, Bahia, Brazil bojaum@gmail.com.

No MeSH data available.


Related in: MedlinePlus