Hi Ravi,

Please follow the following link for the answer

http://tecfaetu.unige.ch/staf/staf-k/benetos/staf15/phase1/08/08d.html

Good Luck

Dear Ravi Prasad

Actually the the definition of Neoendemics indicate these species which are result from the divergent adaptation to differing environmental conditions thereby leading to the formation of new species that are locally distributed.  on the other hand a Palaeoendemics are often systematically isolated taxa, whose distribution areas represent the remnants of originally larger distribution ranges that have been reduced due to environmental changes.

So, the status of the newly discovered taxa is assigned by its won condition of speciat process.  for detail you may follow the publication of M. P. Nayer, and Myself Mitra & Mukherjee (2007). 

Thank you Arvind, Sunit and Zajonz for comments. Sunit Mitra, I have gone through your paper on 'Reassessment and diversity of endemic angiospermic genera of India'. 

Esteemed Ravi:

Ferreira and Boldrini (2011) have proposed some explicit criteria that you may find useful in the context of your answer:

http://onlinelibrary.wiley.com/doi/10.1111/j.1523-1739.2011.01675.x/full

I strongly recommend you this paper; Following Ferreira and Boldrini (2011) the concept of Neoendemism may be either linked to phylogeny or geographic distribution (see Figure 2 in the paper). Best,

Dear Singer, 

Thank you for citing a good reference. I have gone through the abstract of the paper; very informative. After looking into full paper come back for your comments.

Dear Ravi,

may be you need this full paper of Ferreira (I'm attaching). I faced the problem you are discussing several times. But it is connected in my opinion with type of distribution that is charachteristic for the taxonomic group you have to do or describe. For instance, protista have normally spotted distribution, so cannot be put into endemial at all (except of some special cases, like communities in special ecological conditions, like Antarctic ice.

As well, I agree with Uwe, that it is not automatically, that new born specie should belongs into endemial group. Who can suppose, especially for small invertebrates, where can appear representative. Once I found harpacticoid copepod of tropical sub-species that is typical for Kalimantan in relic biotope in NNP Toltry in Ukraine. A lot of other examples from all over the World.

But about where to put this species, if it is of relic origin – especially if you find it in Europe in small spring and its colleagues are living in Africa, so practically 100% it is paleoendemial species.

Andrey

Thank you Andrey for full paper. I fully agree with you after looking into examples you cited. Ferriera and Boldrini paper is an excellent paper- as opined factors influencing endemism: edaphic, evolutionary and competition dictate the species distribution. Priority areas identification for conservation connecting endemism in the purview of their definitions appears to be appropriate.