نتایج جستجو برای: dung beetle

تعداد نتایج: 13416  

2011
Malva I. M. Hernández Leandro R. Monteiro Mario E. Favila

Geometric morphometrics is helpful for understanding how body size and body shape influence the strength of inter-specific competitive interactions in a community. Dung beetles, characterized by their use of decomposing organic material, provide a useful model for understanding the structuring of ecological communities and the role of competition based on their size and morphology. The relation...

2017
Claudia Tocco Danielle E.A. Quinn John M. Midgley Martin H. Villet

In biological monitoring, deploying an effective standardised quantitative sampling method, optimised by trap design and sampling effort, is an essential consideration. To exemplify this using dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae and Aphodiinae) communities, three pitfall trap designs (un-baited (TN), baited at ground level (flat trap, TF), and baited above the trap (hanging trap...

2018
Zhihong Zhang Xiaoyang Wang Jin Tong Carr Stephen

A highly efficient soil-burrowing dung beetle possesses an intricate outer contour curve on its foreleg end-tooth. This study was carried out based on evidence that this special outer contour curve has the potential of reducing soil penetration resistance and could enhance soil-burrowing efficiency. A toothed wheel is a typical agricultural implement for soil imprinting, to increase its working...

Journal: :The Biochemical journal 1997
G Gäde

Two novel members of the adipokinetic hormone/red pigment-concentrating hormone family of peptides were identified in dung beetles of the genus Onitis using heterologous (measuring lipid and carbohydrate mobilization in locusts and cockroaches) and a homologous (measuring proline increase in the haemolymph) bioassay(s). Isolation of the peptides was achieved by single-step reverse-phase HPLC of...

2013
Rodney Hull Mohamed Alaouna Lucky Khanyile Marcus Byrne Monde Ntwasa

The dung beetle, Euoniticellus intermedius (Reiche) (Coleoptera: Scarabaeidae) is an important ecological and agricultural agent. Their main activity, the burying of dung, improves quality of the soil and reduces pests that could cause illness in animals. E. intermedius are therefore important for agriculture and for good maintenance of the environment, and are regarded as effective biological ...

2016
Philippa Z. N. Franzini Jean-Baptiste Ramond Clarke H. Scholtz Catherine L. Sole Sandra Ronca Don A. Cowan

Micro-organisms inhabiting animal guts benefit from a protected and nutrient-rich environment while assisting the host with digestion and nutrition. In this study we compare, for the first time, the bacterial and fungal gut communities of two species of the small desert dung beetle genus Pachysoma feeding on different diets: the detritivorous P. endroedyi and the dry-dung-feeding P. striatum. W...

Journal: :Agronomy 2023

The introduction of numerous exotic dung beetles across southern Australia in regions where native are not generally efficient processing livestock has resulted significant reductions the quantity such on soil surface recent years. However, direct impacts ecosystem services pasture quality and nutrient mobility have yet been investigated Riverina region New South Wales (NSW), an area recognised...

Journal: :Environmental entomology 2009
Elina L Niño Clyde E Sorenson Steven P Washburn D Wes Watson

A bioassay was conducted to determine the impact of methoprene, an insect growth regulator (IGR), on fecundity, larval survival, and size of progeny for Onthophagus taurus Schreber. Adult O. taurus dung beetles were offered methoprene-treated manure in three to five replications each at concentrations of 0.08, 0.45, and 4.5 ppm, respectively. An additional group of adult beetles was immersed in...

2010
Alfonso Díaz Eduardo Galante Mario E. Favila

Understanding the response of species to anthropogenic landscape modification is essential to design effective conservation programs. Recently, insects have been used in empirical studies to evaluate the impact of habitat modification and landscape fragmentation on biological diversity because they are often affected rapidly by changes in land use. In this study, the use of the landscape matrix...

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