. Bonner zoologische Monographien. Zoology. JAHN, BIRD COMMUNITIES ()!• IHK KCUADORIAN CHOCO. FIG. 7. Selectively logged terra firme forest of MNT1. Left: young to medium-age forest on the ridge of a lowland hill (section C, marker 450 m, cf. Fig. 5; elev. 61 m, 1 Jul. 96). Right: mature forest patch at the end of the transect; the big tree in the background, a 'sande' Brosimum utile, was c. 48 m high (section D, marker 625 m, elev. 69 m, 1 Jul. 96). about once or twice a year (around 500 to 1000 m2). This thicket of grasses, ferns, vines, seedlings, and saplings grew hip-high within a few mon
. Bonner zoologische Monographien. Zoology. JAHN, BIRD COMMUNITIES ()!• IHK KCUADORIAN CHOCO. FIG. 7. Selectively logged terra firme forest of MNT1. Left: young to medium-age forest on the ridge of a lowland hill (section C, marker 450 m, cf. Fig. 5; elev. 61 m, 1 Jul. 96). Right: mature forest patch at the end of the transect; the big tree in the background, a 'sande' Brosimum utile, was c. 48 m high (section D, marker 625 m, elev. 69 m, 1 Jul. 96). about once or twice a year (around 500 to 1000 m2). This thicket of grasses, ferns, vines, seedlings, and saplings grew hip-high within a few months. Its composition was very similar to the weedy under- growth of cultivated or recently abandoned planta- tions. The peripheral areas of the clearing consisted of a mosaic of successional vegetation like weedy patches, dense shrubs, and small trees (Fig. 10, left). The species composition and structure of this zone were very similar to the secondary and field-wood- like vegetation on the outskirts of Playa de Oro. In contrast to MNT1, the large bamboo Guadua sp. (Gramineae) was also present. Common small to medium-sized trees were four different species of 'guarumo' Cecropia spp., 'guaba Inga spp., and ma- samorro' or 'lulo' Aegiphila alba (Verbenaceae). The maximum tree heights in this area varied between c. 12 and 20 m. The number and density of trees increased on the left side of the transect from marker 75 m onwards. The undergrowth of this young forest contained various shrub genera, which were also encountered at MNT1, like Palicourea sp. and various Piper spp. The course of the transect followed the border be- tween the young forest and semi-open habitat up to marker m, where the paths entered the forest. In section B it continued through young to medium- age forest on the floodplain up to marker m (Fig. 10, right). On the left side of the transect the ground was covered with gravel and rocks, probably due to former gold-mining activities. By contrast, t
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
