Hi Martin,

Clearly with acoustic IDs this happens from time to time when working in 
areas w/o adequate or no verified vocal signatures.
I use the "C or D" taxa as a "Sonospecies".  Usually these are distinct 
from those well known, but yet to be verified either as C or D.  I have 
treated them in ecological analyses as Sonospecies1, Sonospecies2 
etc.and apply the standardized *AI* for relative abundance between 
sites, dates etc.

Now that I am back in the U.S. after 25 years of living and working in 
Central America I realize many are not able to accurately ID /Myotis /in 
hand so the "lumping" of 2 similar species occurs also from netting and 
trapping efforts as well.

Bruce Miller

-- 
Bruce W. Miller, PhD.
Neotropical bat risk assessments

If we lose the bats, we may lose much of the tropical vegetation and the lungs of the planet

Using acoustic sampling to map species distributions for >15 years.

Providing Interactive identification keys to the vocal signatures of New World Bats

For various project details see:

https://sites.google.com/site/batsoundservices/




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