Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ichkeul National Park' has mentioned 'Ecosystem' in the following places:
Occurrence Sentence Text Source
In 1996, the property was inscribed on the List ofxc2xa0World Heritage in Danger due to the negative effects of the freshwater on the ecosystem following the construction of the dams.
The property was removed from the Danger List in 2006, following an improvement in the situation and restoration of the ecosystem is progressing satisfactorily.
The essential concerns are for the judicious management of the property to control impacts on the ecosystem during less rainy winters, to control effects on Ichkeul with the increased demand for water in Tunisia in general, the full restoration of the marshes and the reed belt, and especially to reconstitute the numbers of wintering water fowl.