By the window Altitude you may select an individual elevation or a range of distribution of a species.

 
 
 
 

To select the range of the elevation, you should choose the lower and upper boundary, among the given indicators and to confirm the choice by clicking the Characteristics button. The selection will include all the species, occurring in the selected range.
If you wish to change the selection, you should first click on the Clear button, and then make a new choice.
Attention: You may only choose successive values (for example you may not choose only the value 500 and at the same time only the value 2000 - the programme will select the range between them).
 
   

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Key
1. Button for clearing of the selection made
2. Button for going back to the Characteristics window
3. Exit button
4. Indicators for selection by altitude
5. Help button