Observation 217393: Poria sensu lato
When: 2015-10-01
Who: SaraJE
No herbarium specimen

Notes: Growing on one of the Pussy Willows in the back yard. The Pussy Willow is still living there is a suet feeder near by on one of the branches. A few downy /hairy woodpeckers as well as a chickadee has been digging and hiding suet into the bark for a few years now.

Images

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There is something stripping and possibly eating the bark around the Poria sensu lato . The rest of the pussy willow is still alive but this section seems to be getting a lot of visitors. The Poria sensu lato seems to stay localized to this area.
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There is something stripping and possibly eating the bark around the Poria sensu lato . The rest of the pussy willow is still alive but this section seems to be getting a lot of visitors. The Poria sensu lato seems to stay localized to this area.

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Comments

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We are in the domain
By: Danny Newman (myxomop)
2015-10-05 22:25:37 EEST (+0300)

of bird ecology, which is well out of my depth. Christian may have some more to offer.

The distribution of mycophagous bugs, beetles, etc. is by no means restricted to the US. I would guess most are tropical.

Poria sensu lato
By: SaraJE
2015-10-05 01:57:07 EEST (+0300)

I was thinking that wood peckers must realize that by drilling into trees for food that this also attracts other insects to eat the exposed area. Providing another source of food for the woodpecker. Several insects farm other insects I was thinking birds may do the same.

I am reading an article on the fungus beetle which eats rotting fungus it does not mention which kinds.https://animalcorner.co.uk/animals/fungus-beetle/ . I think it is mostly found in the States though.

Fungus seems to be capable of adapting to varies situations.

It is good to hear that the Poria sensu lato is healthy :)
We’re getting ahead of ourselves.
By: Danny Newman (myxomop)
2015-10-04 21:18:31 EEST (+0300)

I’m speculating that woodpeckers, somewhere, maybe at your house, maybe not, maybe nowhere, could be making trees vulnerable to infection from pathogenic fungi. I’ve never read anything on the subject, just thinking out loud.

Woodpeckers eating insects, yes. Woodpeckers “encouraging” insects? How do you figure?

There are a variety of mycophagous bugs (not as many birds). Determining which one has a taste for your Poria would, at the very least, first require knowing what the fungus really is, which is highly unlikely to happen, as they are difficult to ID even with microscope access. Most likely nothing eats it apart from the fungi and bacteria which break down the fruiting body once it begins to decompose, which in the case of hardy polypores such as this one, could be years from now.

Poria sensu lato
By: SaraJE
2015-10-04 20:48:11 EEST (+0300)

So everyone is kind of working together . The wood peckers work at the tree encouraging insects that the wood pecker in turns probably eats as well . The tree or branch becomes weekend allowing fungus to grow. Neat.

What insect and or bird would eat the fungus?

probably not…
By: Danny Newman (myxomop)
2015-10-04 19:38:39 EEST (+0300)

seeing as polypores neither eat animal fat, nor can I readily think of a way which they would be at an advantage by having it shoved into their substrate.

the woodpeckers, however, could have some role to play in rendering the wood they peck more susceptible to fungal colonization. this is certainly true of many sap-sucking insects.

Poria sensu lato
By: SaraJE
2015-10-04 00:48:57 EEST (+0300)

The branches that are producing living growth seems to be fungus free.

The Poria sensu lato seems to be growing on just one branch so far that I have noticed the branch does not have any new leaves or other branches growing from it.

Would wood peckers stuffing suet in bark help fungus to grow?

Thanks for your help.

By: Danny Newman (myxomop)
2015-10-03 19:45:00 EEST (+0300)

is a body-form, not any particular taxon. Identifying the fungus would almost certainly require microscopy, or at least a specialist in polypores, of which MO has few to none. I don’t generally associate Poria-like fungi with pathogenicity, but it’s possible. My guess would be that this fungus is white-rotting already dead wood from the inside out, and something else is responsible for this part of the tree being dead in the first place.

Thank you
By: SaraJE
2015-10-01 21:09:15 EEST (+0300)

It will be interesting to see the growth over time. The kids and I can observe in our own back yard :) I am wondering will the Poria sensu lato eventually kill its host?

Created: 2015-10-01 17:51:53 EEST (+0300)
Last modified: 2015-11-02 20:03:43 EET (+0200)
Viewed: 80 times, last viewed: 2017-02-24 06:13:46 EET (+0200)
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