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* It ensures the viability of agricultural activities of the surrounding communes through the protection of soils and drainage basins.
* It is home to several rivers, of which the eight most important provide drinking water for the people of eight rural and urban communes. It When water infrastructure is properly managed it is possible to water most of the 18,000ha of the Ankaibe plain if water infrastructure is properly managed.
* '''Dense humid forest of low altitude:''' A habitat which ensures the viability of species, some of which are endemic like the palm ''Dypsis lokohensis'', ''Dypsis mirabilis'' and the fern ''Tectaria humbertiana''.
Also home to reptiles and amphibians, such as ''Stumpfia sp'', ''Boophis sp1'', ''Boophis sp2'', ''Uroplatus sp'', ''Brookesia karchei'', ''Calumna gastrotaenia'', ''Pseudoacontiasangelorium'', ''Geodipsas sp'' and as well as the bird ''Euryceros prevostii'' (Helmet vanga), the emblem of Marojejy National Park.
* '''Mountain over 1,800m:''' The lowland forest is the main area for local endemic species, amongst which are the ferns ''Blechnum longiopettiolatum'', ''Cyathea alticola'', ''Cheilanthès'', ''Elaphoglossum sp'', ''Lindsaea sp'' and amphibians and reptiles ''Mantidactylus sp'', ''Callumna cf brevicornis'', ''Callumna peryerasii''.
Furthermore, this type of vegetation is unique and original as it is only found intact in Marojejy over 1,800m, despite its existence in [[Tsaratanana]] and [[Andringitra]].
* The '''lemur''' ''Propithecus diadema candidus'' ([[Silky sifaka]]), which is amongst the seven rarest species of Madagascar.
== The site and local population ==
Unfortunately, the villagers only seek to satisfy their immediate needs even at the risk of compromising the future of these natural resources. Thus the Marojejy National Park is subjected to pressures which areincluding:
* '''Land clearings''', which are related to the extension of slash and burn, named "[[Tavy|tavy]]". The selective cutting logging of precious woodwoods, particularly ''Dalbergia sp.'' (magnary), ''Eugeunia sp'', tafonana, ''Weinmannia sp'' ("lalona"), ''Callophylum'' (vintanona), ''Phyllarthron madagascariensis'' ("antohiravina"). Indeed, the high demand for precious wood in the region is clearly one of the major causes for the cutting logging as the locals are attracted by the relatively easy income.
* '''Hunting''', large lemurs such as ''Propithecus'' and ''Eulemurs'' are especially targeted by poachers. According to the Tsimihety ethnic, hunting is a common thing and for festivities practise as lemur meat is still considered a delicacyat festivities.