نتایج جستجو برای: dung equation

تعداد نتایج: 232658  

2015
José R. Verdú Vieyle Cortez Antonio J. Ortiz Estela González-Rodríguez Juan Martinez-Pinna Jean-Pierre Lumaret Jorge M. Lobo Catherine Numa Francisco Sánchez-Piñero

Ivermectin is a veterinary pharmaceutical generally used to control the ecto- and endoparasites of livestock, but its use has resulted in adverse effects on coprophilous insects, causing population decline and biodiversity loss. There is currently no information regarding the direct effects of ivermectin on dung beetle physiology and behaviour. Here, based on electroantennography and spontaneou...

2017
Naomi F. Miller Tristine L. Smart NAOMI F. MILLER

An important concern of paleoethnobotanists is accounting for the presence and charring of seeds recovered archeologically. The possibility that seeds can be brought to a site incorporated in animal dung and charred when that dung is burned as fuel is considered. Researchers have shown that animal dung can contain seeds. Ethnoarcheological data from the rural village of Malyan, Iran demonstrate...

2014
Juliano A. Bogoni Malva I. M. Hernández

Mammal feces are the primary food and nesting resource for the majority of dung beetle species, and larval development depends on the quantity and quality of that resource. Physiological necessities, competitive interactions, and resource sharing are common and suggest that dung beetles may show preferences for feces of greater nutritional quality, which may in turn impact beetle assemblages an...

Journal: :ecopersia 2014
mahdieh ebrahim iraj rahimi pordanjani pejman tahmasebi

the present study was conducted to assess the effect of dung beetles on sheep dung removal and seed dispersal in semi steppe rangelands of shahrekord province with poor condition located in iran. therefore, the large (1 cm2) and small size (1 mm2) meshes were used and filled by sheep dung in six treatments. to evaluate the role of the insects in seeds translocation, three sizes of plastic beads...

Journal: :Veterinary research 2002
Jean-Pierre Lumaret Faiek Errouissi

The overall purpose ofthis paperwas to review the major and most recent literature relating the effects of anthelmintics on dung breeding invertebrates and dung degradation. Faecal residues or metabolites of drugs belonging to the benzimidazole and levamisole/morantel groups are relatively harmless to dung fauna, on the contrary to other anthelmintics such as coumaphos, dichlorvos, phenothiazin...

ابراهیمی, مهدیه, رحیمی پردنجانی, ایرج, طهماسبی, پژمان,

The present study was conducted to assess effect of dung beetles function on dung removal and seeds dispersion in rangeland of University of Sharekord through completely randomized design in summer. Therefore, the meshes consist of both large and small size was used and filled by goat dung in six treatments (presence of all beetles, absent of the beetles, presence of dwellers and tunnelers, abs...

Journal: :Ecotoxicology and environmental safety 2013
Wolf U Blanckenhorn Nalini Puniamoorthy Martin A Schäfer Adam Scheffczyk Jörg Römbke

Veterinary pharmaceuticals excreted in the dung of treated livestock can have strong non-target effects on the dung organism community. We report results of ecotoxicological tests with ivermectin for 21 species of temperate (Europe, North America) and tropical (Asia, Central America) black scavenger flies (Diptera: Sepsidae), using standardized methods developed previously for the yellow dung f...

Journal: :Current Biology 2012
Jochen Smolka Emily Baird Marcus J. Byrne Basil el Jundi Eric J. Warrant Marie Dacke

At midday, surface temperatures in the desert often exceed 60°C. To be active at this time, animals need extraordinary behavioural or physiological adaptations. Desert ants, for instance, spend up to 75% of their foraging time cooling down on elevated thermal refuges such as grass stalks. Ball-rolling dung beetles work under similar thermal conditions in South African savannahs. After landing a...

2004
CAROL L. BOGGS BIRGITT DAU

Lepidoptera feed at mud puddles, dung, and carrion in a behavior known as puddling. Sodium and sometimes protein are feeding cues, are actively collected, and play a potentially important role in lepidopteran nutritional and mating ecology. We showed that montane butterßy species have feeding preferences among mud, herbivore dung, and carnivore dung, and that these preferences differed among bu...

2013
Claudia Tocco Massimiliano Probo Michele Lonati Giampiero Lombardi Matteo Negro Beatrice Nervo Antonio Rolando Claudia Palestrini

In recent decades, pastoral abandonment has produced profound ecological changes in the Alps. In particular, the reduction in grazing has led to extensive shrub encroachment of semi-natural grasslands, which may represent a threat to open habitat biodiversity. To reverse shrub encroachment, we assessed short-term effects of two different pastoral practices on vegetation and dung beetles (Coleop...

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