Congratulations...!! Thanks for sharing....... I think this could be useful for me, irrespective of the area of study... regards
On Fri, Mar 25, 2011 at 11:28 AM, Pankaj Oudhia <[email protected]>wrote: > Thanks for detailed reply. > > In early days of my surveys I were adopting random sampling technique as it > was required to publish a paper. But later in villages I found that every > native in village has different knowledge about herbs growing in > surroundings then how random sampling can give accurate result? I started > interacting each and every individual and still continuing it. It take many > decades and many times entire life but it results in accurate as well as > detailed information. Yes, you can not publish it in form of research > papers. Who bothers as another option on online articles is there. > > Pterocarpus and Teminalia chebula including other Terminalias are store > house of orchid diversity (Vijayashankar ji can throw more light on it). I > have found many species in visits of Chhattisgarh and Jharkhand. That's why > I was expecting it in your paper. I am sure that more surveys in the same > area will result in new information. For time being this paper can be used > as reference. > > Local people play vital role in such surveys. Expecting that you have taken > their services. May be not as I have not seen their names in acknowledgment. > ;( > > If possible please send the list of reported host trees of Dendrobium in > India. If names of Pterocarpus, T.alata and T.chebula like trees are not > there then lets start publishing new records by Pankaj and Pankaj from > Efloraindia. > > regards > > Pankaj Oudhia > > On Fri, Mar 25, 2011 at 8:10 AM, Dr Pankaj Kumar > <[email protected]>wrote: > >> Respected Oudhia Sir >> Thanks a lot for the response. >> Coming to your queries. >> The study area was whole of Jharkhand We used Stratified Random >> Sampling. Stratification was done on the basis of presence of more >> than 10 orchids in the region and the habitat, i.e., sampling was done >> exclusively in those areas where we had more than 9 orchids. >> >> 1. In the present article I didnt talk about the vegetation >> composition of each of the 5 habitats. >> 2. When you do random sampling you are likely to miss species of >> orchids as well as host trees, as you can see out of 11 had only 7 >> species in the plots. >> 3. Pterocarpus marsupium was undoubtedly there, but I never found >> orchid in it, and I never found so much of it in the plot, i.e., it >> was not as dominant as other tree species to classify a habitat on its >> basis. Infact acording to my findings, orchids were present in the >> areas were sal is (w.r.t.) more than 9 orchids. How did I chose.9 >> orchids? I made some preliminary survey and found the most common ones >> which were around 9 in numbers. >> 4. On Terminalia chebula I did find some orchids, but no Dendrobiums >> and this tree was also not as dominant as the other counterparts in a >> habitat. Some Vanda tessellata, V. testaceae, Aerides multiflora, if I >> remember correctly I found on this. >> 4. Yes, I never found an epiphytic orchid in Shorea - terminala alata >> forests. This doesnt mean, that I didnt find epiphytic orchids on >> Shorea or T. alata (I did find them) but not in an area where these >> trees formed the major vegetation, in my area, may be because they >> were too dense. >> 5. When you do random sampling, you have to maintain the ramdomness >> otherwise you cant calculate the densities and abundance accurately. >> 6. To prove that, I used species area curve to check if my sampling >> effort was adequate, and frankly speaking in all the habitats yes the >> curve saturated much before my last plot. >> >> I really appreciate posting your queries. >> Regards >> Pankaj >> > > -- *Manudev K Madhavan* Junior Research Fellow Systematic & Floristic Lab, Department of Botany, Centre for Postgraduate Studies & Research St. Joseph's College, Devagiri Kozhikode- 673 008 Mob: 9496470738
