Hi I do not think that any naturally grown, indigenous vegation is bad for ecology of any region. In nature there is place for variety of plants and that biodiversity makes the habitat ecologically healthy, sustainable. Indigenous Silk Cotton is a wonderful tree for birds and insects and there is no reason for its removal from natural forests, even if they are in large nos. They do not disturb the regional ecology or water table, as claimed.
However, in nature there are several plants which are poisonous, which have thorns, which cause severe itching, which are allergic to many other life forms. These plants are avoided in urban landscape. It is Alstonia scholaris (not Putranjiva) which is being removed from many urban areas because of its allergic properties for many humans. Mucuna is another climber (even though it has beautiful flowers) which is avoided in urban regions because of its itching pods. The list is long and urban landscape designers have to learn about them. Natural ecosystems and human-made ecosystems need different parameters and strategy for their management. Ulhas Rane --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "indiantreepix" group. To post to this group, send email to indiantreepix@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.co.in/group/indiantreepix?hl=en -~----------~----~----~----~------~----~------~--~---