Are ball-rolling (Scarabaeini, Gymnopleurini, Sisyphini) and tunnelling scarabaeine dung beetles equally choosy about the size of ingested dung particles?
| العنوان: | Are ball-rolling (Scarabaeini, Gymnopleurini, Sisyphini) and tunnelling scarabaeine dung beetles equally choosy about the size of ingested dung particles? |
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| المؤلفون: | Clarke H. Scholtz, Peter Holter |
| المصدر: | Ecological Entomology. 30:700-705 |
| بيانات النشر: | Wiley, 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Scarabaeidae, animal structures, Ecology, Detritivore, Biology, biology.organism_classification, Animal science, Insect Science, Scarabaeini, Botany, Pellet, Ball (bearing), Scarabaeinae, Particle size, Dung beetle |
| الوصف: | 1. The maximum size of ingested particles was determined in 11 species of ball-rolling, adult dung beetle (Scarabaeidae: Scarabaeinae) by mixing small latex or glass balls of known diameter into their food. The tribes Scarabaeini, Gymnopleurini, and Sisyphini (four, four, and three species respectively) were represented, with mean body sizes ranging from 0.33 to 4.0 g fresh weight. 2. Only particles with maximum diameters of 4–85 µm were ingested. Hence rollers, like other known beetles feeding on fresh dung, filter out larger, indigestible plant fragments and confine ingestion to small particles of higher nutritional value. 3. The maximum diameter of ingested particles increased significantly with body weight, whereas taxon (tribe) had no additional effect. Because big rollers accept larger particles than do tunnellers (which make dung stores for feeding and breeding in the soil immediately below the pat) of similar weight, the slope of the diameter-against-weight regression for rollers was significantly higher than that found earlier for tunnellers. 4. An explanation could be that a typical food ball made by a roller is considerably smaller than the amount of dung available to a feeding tunneller of the same size. If the roller were as choosy about particle size as the tunneller, it might not get enough food. This applies to large rollers in particular because their food balls contain a higher proportion of coarse fibres than those made by small species. |
| تدمد: | 1365-2311 0307-6946 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0b3e6cc0d00b30799ffa36be28325c7e https://doi.org/10.1111/j.0307-6946.2005.00746.x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........0b3e6cc0d00b30799ffa36be28325c7e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652311 03076946 |
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