نتایج جستجو برای: dung flies
تعداد نتایج: 18020 فیلتر نتایج به سال:
Two new species of Didicrum from Argentina are described and illustrated: Didicrum naimae and Didicrum letitiae, based on male and female specimens. Specimens were collected with Malaise traps located in Nahuel Huapi National Park, Patagonian region. Including the two new species of Didicrum, twelve are described from South America.
The insecticidal properties of many anthelmintics pose a risk to dung fauna through the effects of drug residues in dung on the activity, oviposition and development of dung-dwelling invertebrates. Reductions in dung fauna numbers can inhibit dung degradation, which may impact biodiversity and nutrient cycling on farms. A simulation model was created to predict the impact of antiparasitic drugs...
Saprophytic and corprophilous fungal flora on dung samples of different hybrid cow in Lawspet area of puducherry, India was studied by moist chamber method during 2014-15. During the isolation and identification of fungi from hybrid cow dung samples, 16 species under 7 genera of hyphomycetous fungi were isolated with 44 isolates from the dung samples. Aspergilli and penicilli were dominated amo...
The study of seed fate is crucial for understanding fruit–frugivore interactions. One factor that can greatly influence the fate of seeds dispersed through mammal defecation, is the dung that accompanies the seeds. Dung attracts dung beetles and rodents; the former eat and bury dung, the latter feed on seeds. In this study the fate of Micropholis guyanensis subsp. guyanensis seeds surrounded by...
Dung beetles belong to the superfamily Scarabaeoidea, and are mostly within the subfamilies of Scarabaeinae and Aphodiinae. They are given their name because they feed partially or exclusively on feces. Each species of dung beetles can be classified as one of several types: rollers, tunnelers and dwellers. Rollers roll the dung into round balls, which are then used for brooding chambers or as a...
Agricultural expansion and intensification are major threats to global biodiversity, ecological functions, and ecosystem services. The rapid expansion of oil palm in forested tropical landscapes is of particular concern given their high biodiversity. Identifying management approaches that maintain native species and associated ecological processes within oil palm plantations is therefore a prio...
Evidence for selective disadvantages of large body size remains scarce in general. Previous studies the yellow dung fly Scathophaga stercoraria have demonstrated strong positive sexual and fecundity selection on male female size. Nevertheless, flies from a Swiss study population has declined by ~10% 1993–2009. Given substantial heritability size, this negative evolutionary response an evidently...
While sperm competition has been extensively studied, the mechanisms involved are typically not well understood. Nevertheless, awareness of sperm competition mechanisms is currently recognised as being of fundamental importance for an understanding of many behavioural strategies. In the yellow dung fly, a model system for studies of sperm competition, second male sperm precedence appears to res...
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