. Bonner zoologische Monographien. Zoology. 133 Pipra mentalis minor Hartert Red-capped Manakin Specimens: Mutatä 2 (5, 1 9; Rl° Uva 4 6 (5X3 mm in three males, 6 X 3 mm), 1 (5 imm. (4X2 mm). The Red-capped and the Golden-headed Manakin replace each other geographically in the lower Atrato Valley (Fig. 43), where P. mentalis occurs north to the Rio Uva and Mutatä. P. erythrocephala inhabits the Uraba region and the lower Atrato Valley south to the Napipi and Murri Rivers (Haffer 1967 b). Interactions of these parapatric manakins along the contact zone are unknown. Occasional hybrids occur wher
. Bonner zoologische Monographien. Zoology. 133 Pipra mentalis minor Hartert Red-capped Manakin Specimens: Mutatä 2 (5, 1 9; Rl° Uva 4 6 (5X3 mm in three males, 6 X 3 mm), 1 (5 imm. (4X2 mm). The Red-capped and the Golden-headed Manakin replace each other geographically in the lower Atrato Valley (Fig. 43), where P. mentalis occurs north to the Rio Uva and Mutatä. P. erythrocephala inhabits the Uraba region and the lower Atrato Valley south to the Napipi and Murri Rivers (Haffer 1967 b). Interactions of these parapatric manakins along the contact zone are unknown. Occasional hybrids occur where these species meet in eastern Panama (Dr. E. Eisenmann, pers. comm.). The Amazonian P. erythrocephala ranges around the northern tip of the Andes and occu- pied a peculiar gap in the range of the trans-Andean P. mentalis. Both species form a Zoogeographie species (= superspecies) together with the red-capped P. rubrocapilla of southern Amazonia and southeastern Brazil as well as P. chloromeros of eastern Peru and Bolivia (Fig. 43 B).. Fig. 43: Distribution of the Pipra erythrocephala superspecies. Explanation: A Distribution of P. erythrocephala and P. mentalis in northwestern Colombia and easternmost Panama. Modified from Haffer (1967 b). Stippled area and open circles — P. e. erythrocephala. Shaded area and open squares — P. mentalis minor. Plumage color in males of both species is mainly black with a yellow cap in erythrocephala and a red cap in mentalis. B Generalized distribution of P. mentalis (1, solid areas); P. chloromeros (2, dashed area); P. rubrocapilla (3, area hatched horizontally); P. erythrocephala (4, stippled area). Another species of this group, P. cornuta, inhabits montane forests of the table mountains in southern 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,
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
