Changes

The riverside population harvests timber from the forest to meet their daily needs. Therefore they target the most frequently used species trees with a diameter between 3cm and 20cm. Very few woods with a diameter greater than 30 cm 30cm are cut. The cutting period is between June and November. * ''' Land clearing'''<br>Land clearing is also one of the factors for forest degradation, even if the annually affected area is still minimal (1.20ha in 2001). The laying of lemur traps is one of the reasons for those clearings. * '''Hunting'''<br>Some lemur species are hunted, especially diurnal species. Most of the hunting takes place during the end of the rainy season from March to May. * '''Collecting wildlife'''<br>In recent years, wildlife species such as reptiles have been collected illegally for commercial purposes. The collection period takes place during the wet season. The caught animals are sent to the main collector in Antananarivo and from there enter the network of international wildlife trafficking.Note: Since the cancellation of the Air Madagascar flight to Antsalova, this illegal practice diminished.  Madagascar National Park's actions are not limited to the protection and preservation of natural species.