tag:blogger.com,1999:blog-5334048668354898660.post8822645998343349515..comments2024-01-08T19:01:37.331+00:00Comments on Donegal Wildlife: Stacking!Stuarthttp://www.blogger.com/profile/15225743105419715015noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5334048668354898660.post-39381854558103339222014-11-26T21:27:39.928+00:002014-11-26T21:27:39.928+00:00Hello Stuart, I was sent over here by Pat...the We...Hello Stuart, I was sent over here by Pat...the Weaver of Grass....as she thought you might be able to help me identify something I've never seen here (Dartmoor) before. I'm not even sure if it's fungi or eggs so I wonder if you would mind having a look for me? This is a link to the post in question and the photos are about halfway through. <br /><br />http://dartmoorramblings.blogspot.co.uk/2014/11/jack-be-nimble.html<br /><br />Both could have done with your stacking advice! That's something I'd love to try and what a fascinating phenomenon the mothy fungus is. I must go back and have another look. <br /><br />Thanks so much....in anticipation of your visit.....EmEm Parkinsonhttps://www.blogger.com/profile/04789754528697848623noreply@blogger.comtag:blogger.com,1999:blog-5334048668354898660.post-46259040215854499532014-11-21T09:59:10.587+00:002014-11-21T09:59:10.587+00:00Good question, Peter, and I think we could classif...Good question, Peter, and I think we could classify both 'real' rarities and 'perceived' rarities. I'd say real rarities are those which are recorded infrequently, but are actively sought. A good example is Cerodontha silvatica, the leaf miner on Woodrush. I know of people who have been unsuccessfully searching for it for decades, and the plant isn't rare, as you know. True rarity can have a number of causes: perhaps we are on the extreme limits of the range, and only get bold explorers or specimens displaced by weather. An example of this could be the Phytoliriomyza miner on Balsam, which has few records, since it is just arriving here, but might become common in future. Other rarities occur because the precise circumstances required for their existence don't occur very often. For example, I know of gall-causing wasps that only create galls on hybrid trees, so both parents of the hybrid must be sufficiently close to each other for the hybrid to occur. But if you're a parasitoid wasp that needs that particular gall-causer, then you won't be found too frequently. Some fungi are successional, and can only exist if other species of fungi have already been present and paved the way for the followers to take hold. This, I think, is one reason that some rare fungi are found only in ancient forests: the correct conditions take a long time to arise. One reason for perceived rarity is where species are difficult to identify. I know from experience that parasitic wasps are very common, but there are very few records. I have investigated these quite closely, and I know that identification can require access to specimens, microscopes, reference collections and documentation which is sparse, out of date, and dispersed in difficult-to-find papers and journals. But I still intend to work at it...:) The specimen of the fungus in this post might well be both really rare and perceived rare. I think it's probably on the limit of its (current) range, and it appears to be more common in other, warmer, countries. That's why I suspected the host moths might be migrants. Early (1940's) English records were all east coast and this specimen was found in Cork. These locations are well-known for migrant arrivals from east and south. Having said that, these fungi are only studied by very few people, and the documentation is sparse, so getting the correct id is difficult even when it is found. This could result in a truly rare species being perceived as even rarer. For the record, this specimen was found in a greenhouse that contains organically-raised exotic fruits, so back-tracking the origin would be fraught with all kinds of possibilities.....;) Since I posted images, I have had a few "Oh, I've seen something like that, but didn't know what it was. Would you like specimens?" type of comments. We'll see what comes out of that. Stuarthttps://www.blogger.com/profile/15225743105419715015noreply@blogger.comtag:blogger.com,1999:blog-5334048668354898660.post-76469349003312048932014-11-21T08:30:50.781+00:002014-11-21T08:30:50.781+00:00I'm not surprised species like this fungus are...I'm not surprised species like this fungus are rare, but are they uncommon species or just rarely recorded? In this case, probably both; I'm not sure I would have noticed it anyway. In what habitat/circumstances was the specimen found?Peter Archdalehttps://www.blogger.com/profile/18405659598182782796noreply@blogger.comtag:blogger.com,1999:blog-5334048668354898660.post-61734436272068656672014-11-20T16:11:26.964+00:002014-11-20T16:11:26.964+00:00You can buy specialist software, e.g. zerene stack...You can buy specialist software, e.g. zerene stacker, but some photo editing programs do it too, e.g. Photoshop. It's the fungus that's rare (in BI, anyway). We don't know what the (adult) moth is, unfortunately.Stuarthttps://www.blogger.com/profile/15225743105419715015noreply@blogger.comtag:blogger.com,1999:blog-5334048668354898660.post-21014310745180233562014-11-20T13:27:43.327+00:002014-11-20T13:27:43.327+00:00Fascinating - never come across that software befo...Fascinating - never come across that software before but it looks fantastic, if a bit fiddly.<br />As for the specimen - is it the moth or the fungus that is very rare? By "moth" I assume you mean caterpillar in this instance?Gillhttps://www.blogger.com/profile/15736035484977149890noreply@blogger.com