Hi Sisubalan, if you need to map the species and link data,  you should use some GIS tools (GvSIG, Quantum GIS, ArcGIS). It will provide you a integrated view and you also could do statistical visualization. 

Thank you researcher Patricia Ferreira Lopes

What type of distribution ? Geographic distribution OR Ecological distribution !

There are several  modeling  are available for the geographic distribution of plant species in terms of climatic and edaphic factors. Kindly go though the following references:

1. Wu, H., & Huffer, F. R. W. (1997). Modelling the distribution of plant species using the autologistic regression model. Environmental and Ecological Statistics, 4(1), 31-48.

2. Austin, M. P. (2002). Spatial prediction of species distribution: an interface between ecological theory and statistical modelling. Ecological modelling, 157(2), 101-118.

3. Guisan, A., Theurillat, J. P., & Kienast, F. (1998). Predicting the potential distribution of plant species in an alpine environment. Journal of Vegetation Science, 9(1), 65-74.

For ecological distribution, is the manner in which a plant is spatially arrange.The pattern of distribution is not permanent for each species. Distribution patterns can change seasonally, in response to the availability of resources, and also depending on the scale at which they are viewed. Dispersion usually takes place at the time of reproduction.

There are three basic types of population distribution within an area: uniform, random and clumped.

1. Sagar, R., Raghubanshi, A. S., & Singh, J. S. (2003). Tree species composition, dispersion and diversity along a disturbance gradient in a dry tropical forest region of India. Forest Ecology and Management, 186(1), 61-71.

2. Condit, R., Ashton, P. S., Baker, P., Bunyavejchewin, S., Gunatilleke, S., Gunatilleke, N., ... & Yamakura, T. (2000). Spatial patterns in the distribution of tropical tree species. Science, 288(5470), 1414-1418.

Thank you so much Mr. Koushik Majumdar for your valuable suggestions and informations.

If you are interested in species distribution models you may check the review by Guisan and Thuiller in 2005 http://onlinelibrary.wiley.com/doi/10.1111/j.1461-0248.2005.00792.x/abstract. One main issue, but not the only one, is selecting the statistical method, you will find many references to the comparison by Elith et al. (2006) http://onlinelibrary.wiley.com/doi/10.1111/j.2006.0906-7590.04596.x/abstract were some novel methods outperformed the classic Generalized Linear Model (GLM) approach. In you prefer GLM you can get similar performance if you apply regularization (e,g, my 2011 paper https://www.researchgate.net/publication/236870185_Modelling_species_distributions_with_penalised_logistic_regressions_A_comparison_with_maximum_entropy_models )

Article Modelling species distributions with penalised logistic regr...

@Aitor Gaston, Greetings sir. Thank you very much. This all are very useful informations. Thank you sir.

a good tool for modeling geographic distribution of your species is the maximum entropy approach, see e.g.

Philipps et al (2006): http://www.sciencedirect.com/science/article/pii/S030438000500267X

or Elith (2011): http://onlinelibrary.wiley.com/doi/10.1111/j.1472-4642.2010.00725.x/full

good luck with your work!

Thank you sir @Oliver Bechberger for your suggested and valuable contribution.