facultative parasite


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facultative parasite

[′fak·əl‚tād·iv ′par·ə‚sīt]
(ecology)
An organism that can exist independently but may be parasitic on certain occasions, such as the flea.
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quercina is an agent of butt trunk heart or heart sap rot; it is a facultative parasite [8, 10] and tends to live in more anthropogenically transformed forest stands, where it is more often met on the inert substrate--stumps, cut and thrown trunks, their stubs.
Ecomorphotype #1 Ecomorphotype #2 1 2 Ecological group, pathologic role Saprotroph, in some cases Saprophyte, in some cases facultative parasite on weakened facultative parasite on trees.
Facultative parasite A parasite that has free-living stages that do not require hosts.

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