La siembra a escala industrial ha promovido la remocion de formaciones vegetales originales: bosques altos, palmares de Socratea exorrhiza, vegetacion acuatica, matorrales y pastizales con restos de bosque (RangelCh & Minorta-Cely, 2014), a su vez que se han generado eventos de extincion local de las aves asociadas al piedemonte: Anhima cornuta, Neochen jubata, Amazonetta brasilensis, Aburria aburri, Mitu tomentosum, Crax daubentoni, Harpia harpia, Opisthocomus
hoazin, Eurypyga helias, Geotrigon linearis, Orthopsittaca manilata, Atene cunicularia, Nyctibius grandis, Eutoxeres aquila, Phaetornis malaris, Pachyramphus cinnamomeus, P.
2004: Exposure to ecotourism reduces survival and affects stress response in hoatzin chicks (Opisthocomus
hoazin).
Durante este estudio se escogieron aleatoriamente 100 aves silvestres correspondientes a 11 familias (Psittacidae, Ramphastidae, Ophistocomidae, Cracidae, Anatidae, Icteridae, Alaudidae, Burhinidae, Phoenicopteridae, Anhimidae y Rallidae) y 16 especies (Ara ararauna, Ara macao, Amazona spp, Amazona ochrocephala, Ramphastos toco, Aulacorhynchus prasinus, Ramphastos tucanus, Ophistocomus
hoazin, Crax Alberti, Anas discors, Agelaius icterocephalus, Alauda arvensis, Burhinus bistriatus, Phoenicopterus ruber roseus, Chauna chavarria, Gallinula chloropus), a las cuales se les tomo muestras correspondientes a 4 gramos de materia fecal [22].
Estudo osteologico e miologico do cranio de Opisthocomus
hoazin (Muller, 1776) (Aves: Opisthocomidae) comparado com algumas especies de Cracidae, Musophagidae e Cuculidae.
Otro detalle que se debe destacar, es que estos ambientes tambien son frecuentados por otros grupos de aves, especificamente Ophistocomus
hoazin (shansho).
Exposure to eco-tourism reduces survival and affects stress response in hoatzin chicks (Opisthocomus
hoazin).
Two relatively widespread, although not species rich, families are represented at the South American sites, but not in Panama: Opisthocomidae (Hoatzins, Opisthocomus
hoazin) and Psophiidae (screamers).
The horned screamer (Anhima cornuta), a fat black bird with a loud, trumpetlike cry, nests on the banks, together with the noisy hoatzin (Opisthocomus
hoazin).
Pitelka et al., 1955 [C] Andersson and Gotmark, 1980 [C] Opisthocomus
hoazin Strahl and Schmitz, 1990 [C] Corvus spp.
Since describing the bird, Opisthocomos
hoazin, in 1776, ornithologists have had problems pinpointing its closest kin, as the hoatzin looks and acts so unlike other birds.
Numerous along the creeks of the Hato are partridge-like chenchenas (ophistocomus
hoazin), probably related to the cuckoo bird.