. Bonner zoologische Monographien. Zoology. 65 ward and thence swinging westward across the Atrato River between the Rio Napipi and Rio Uva to reach the Pacific coast at the Gulf of Cupica (Haffer 1967 c). Many endemic Chocö birds, east of the lower Atrato River, extend their ranges further north than on the western side of this river, probably because of ecological reasons. Wet forests follow the base of the Western Andes north to the area of Mutatä and Chigorodö, as the influence of the drying tradewinds is here felt less than on the opposite side of the Atrato River, where seasonal forests
. Bonner zoologische Monographien. Zoology. 65 ward and thence swinging westward across the Atrato River between the Rio Napipi and Rio Uva to reach the Pacific coast at the Gulf of Cupica (Haffer 1967 c). Many endemic Chocö birds, east of the lower Atrato River, extend their ranges further north than on the western side of this river, probably because of ecological reasons. Wet forests follow the base of the Western Andes north to the area of Mutatä and Chigorodö, as the influence of the drying tradewinds is here felt less than on the opposite side of the Atrato River, where seasonal forests increasingly replace ever- green forests from the Rio Truandö to the Fig. 25: Ornithogeographic areas of northwestern Colombia. Explanation: Forest regions: 1 Pacific Colombian rainforest region (Chocö region). 2 Eastern Panama-northwestern Colombia rainforest region (Darien-Urabä region). 3 Cauca-Magdalena forest region (Nechi region). Nonforest regions: 4 Northern Colombian nonforest region. 5 Arid Cauca Valley. D Arid Dabeiba Valley. Moun- tains above 1000 m elevation are in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
