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Dung Fungi Questions

Question 1

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Answer 1

The fungi found in dung have a diverse range of ecological attributes. They include organisms which utilise dung and their only source of nutrients, saprotrophs which land and growth accidentally, fungi that are consumed deliberately and accidentally by the herbivore and fungi that are normal occupants of the GIT.

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Question 2

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Answer 2

It is not the attributes of dung, which is a very rich growth medium, but rather the passage through the GIT, which reduces the populations of some fungi. The GIT has passages where intense microbial activity includes degradation of microbial cells, extremely acid conditions and periods where the contents are subject to host digestive activity.

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Question 3

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Answer 3

Those fungi that survive passage through the GIT must have thick walls to cope with digestion, lack of or slow response to digestive fluids to prevent germination, and inhibition by high temperatures to reduce metabolic losses in the GIT.

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Question 4

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Answer 4

Dung of native animals is commonly buried almost immediately by native arthropods. Most studies of dung fungi have been conducted on dung of grazing animals because there is more of it, and the arthropods which normally bury it are absent in Australia, and therefore it is easier and more practicable.

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Question 5

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Question 6

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Question 7

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