HAVE A CHECK AT THE ASSESSMENT AGAIN
I am tempted to suggest this rather to be assessed as DD
or you need to have a clear motivation showing that (a) this species has been extensively searched for, (b) the habitat where it occurs is so specific that it can be concluded that its potential distribution is less than 500 km2 in Yunnan, and (c) that this habitat is declining.
Bird-nest fungi are saprotrophs with vast availability of dead material to grow on.
The bird nest fungus Cyathus cheliensis is restricted to China and has only been recorded once, at its type locality in Yunnan in 1948. Bird nest fungi have been extensively searched for throughout Yunnan/China during (since) XXXX without any further collection of this species.
The area where the original collection was made and its surrounding areas have been extensively exploited and. Based on extensive searches during Despite , occupying an estimated area <500km2, which is severely fragmented, with ≤5 locations. by mycologists but no further collection of the species was made.
AS ONLY REPORTED FROM ITS TYPE LOCALITY, MAY BE APPROPRIATE TO REPORT WHERE THE REFERENCE FOR THE SPECIES DESCRIPTION. and that it is considered as a proper specis.
Cyathus cheliensis has only been recorded from its type locality in Yunnan, China in 1948. Despite extensive search for bird-nest fungi in China/Yunnan during the last 30? years and recording of more than 10000 specimens ?? no further records have been made of C. cheliensis. Bird nest fungi has been the subject for research and extensive fieldwork in Yunnan?China? by…........
Although bird-nest fungi are less than a centimetre in diameter, they often grows in huge clusters which makes them easily visible, even from some distance. They are therefore rather conspicuous, easy to search for and to record.
TRY TO DEVELOP THIS SECTION A LITTLE BIT, MOTIVATE THAT BIRD NEST FUNGI ARE RATHER WELL KNOWN AND HAVE BEEN EXTENSIVELY SEARCHED FOR.
It is obviously a very rare fungus as it has only been recorded once at it´s type locality despite extensive searches for bird-nest fungi in Yunnan. Many fungal species are reported as endemic and with very restricted geographic distribution in Yunnan (any reference?). Cyathus cheliensis is expected to be one such endemic species with very restricted distribution. MOTIVATE 500 KM2 - PERHAPS EASIER TO MOTIVATE 2000 KM2 AND USE VU,.
The development and human exploitation of Yunnan during the last 70 year have been extensive and potential habitats of bird nest fungi in general is estimated to have declined by XXX% (50%??).
Cyathus cheliensis is a saprotrophic fungus that grows in group on rotten wood. IN WHAT type of HABITAT? HOW COMMON IS THIS HABITAT?
The main threat for is probably the ongoing loss and detoriation of potential habitats for C. cheliensis.
Write something about the development of the habitat in Yunnan…if possible with a referece.
CLIMATE IS DIFFICULT TO USE (i HAVE TAKEN IT AWAY) - IF SO, YOU NEED TO MOTIVATE, HAVE A REFERENCE TO THAT, THE HABITAT OF C. CHELIENSIS IS AFFECTED BY CLIMATE AND THEN INFER THAT THE FUNGUS WILL BE. I THINK YOU ONLY SHOULD GO FOR HABITAT DETORIATION , DECKLINE AND FRAGMENTATION.
If C. cheliensis is refund, protection, or carefully management, of these sites is needed to maintain the appropriate environmental conditions for it to survive.
The distribution, status and ecology of this species is poorly know. Such knowledge is needed for effective conservation and should be undertaken as soon new records are being made. Efforts to search for the species is needed, engagement of the interested public could be one approach to conduct this.
PLEASE CHECK AND DEVELOP
Zhou, T (ed). 2007. Geastraceae, Nidulariaceae in Flora Fungorum Sinicorum. Vol 36. Science Press Bejing.