Dung beetles and dung, new research


This video says about itself:

African Dung Beetle

15 October 2007

Sacred to ancient Egyptians, these beetles recycle – of all things – dung.

From Ecological Entomology:

Herbivore dung as food for dung beetles: elementary coprology for entomologists

PETER HOLTER

Article first published online: 22 APRIL 2016

1. How do dung beetles and their larvae manage to subsist on herbivore dung consisting of plant remains that are at least partly indigestible, mixed with various metabolic waste products? To clarify what is known and not known about this basic aspect of dung beetle biology, the present review summarises information on dung composition and discusses the feeding of beetles (food: fresh dung) and larvae (food: older dung) in relation to this information.

2. There is 70–85% water in typical fresh dung, and undigested lignocellulose or ‘fibre’ constitutes about 70% of the organic matter which also contains 1.5–3% N. About 75% of this is ‘metabolic faecal nitrogen’, mostly associated with dead and alive microbial biomass. As all essential amino acids and cholesterol are probably present, additional synthesis by microbial symbionts may not be needed by the beetles.

3. Beetles minimise the intake of lignocellulose by filtering fibre particles out of their food which is probably microbial biomass/debris with much smaller particle size. Excess fluid may be squeezed out of this material by the mandibles before ingestion.

4. All larvae are bulk feeders and unable to filtrate, but little is known about the composition of their food, i.e. older dung in pats or underground brood masses. Larvae in dung pats may depend on easily digestible dung components, probably microbial biomass, whereas the nutritional ecology of larvae in brood masses is still not understood. Unravelling the composition of their food might answer some of the so far unanswered questions.

10 thoughts on “Dung beetles and dung, new research

  1. Pingback: Beetles of the Dutch Veluwe region | Dear Kitty. Some blog

  2. Pingback: Exhibition on wolves in the Netherlands | Dear Kitty. Some blog

  3. Pingback: Beetle eats dead beetle, video | Dear Kitty. Some blog

  4. Pingback: South African dung beetle video | Dear Kitty. Some blog

  5. Pingback: Acorn worms, new research | Dear Kitty. Some blog

  6. Pingback: Triassic beetle discovery in Dutch Winterswijk | Dear Kitty. Some blog

  7. Pingback: Beautiful American dung beetle video | Dear Kitty. Some blog

  8. Pingback: Ancient Sudanese goldsmith’s tomb found | Dear Kitty. Some blog

  9. Pingback: Dung beetle rolls dung ball | Dear Kitty. Some blog

  10. Pingback: Dung beetle rolls dung ball – The Gaia Gazette

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.