scholarly journals NATURAL SUCCESSION OF SECONDARY-LOWLAND DIPTEROCARP FOREST AFTER SELECTIVE LOGGING IN LONG PAHANGAI, WEST KUTAI, EAST KALIMANTAN

2015 ◽  
Vol 2 (1) ◽  
pp. 226 ◽  
Author(s):  
Retno Peni Sancayaningsih ◽  
Misbakhul Bait
Keyword(s):  
Soil Nutrients ◽  
Secondary Forest ◽  
Similarity Index ◽  
Selective Logging ◽  
Primary Forest ◽  
Available Phosphorus ◽  
Dipterocarp Forest ◽  
East Kalimantan ◽  
Dipterocarp Forests ◽  
Lowland Dipterocarp Forest

<p>Selective logging in West Kutai may raise vegetation and environmental destruction in lowland Dipterocarp forest, and this will naturally run into succession. The purposes of this research were to study secondary succession in lowland Dipterocarp forest after 8 months and 6 years of Selective Logging in Long Pahangai, West Kutai regency, East Kalimantan and to study the relationships between plant abundance and soil nutrients and other environmental factors. The research had been done from May to November 2012. Nine study plots were chosen randomly within 3 selected study areas: primary Dipterocarp forest; and two secondary Dipterocarp forests, including 8 months, and 6 years forest after selective logging with three replicates each. Vegetation analysis was carried out using 20 x 20 m2 quadrat method, and 36 soil samples were taken and analyzed its soil nutrients, including total content of C-organic, total as well as available content of nitrogen, phosphorous, and potassium. <br />The results showed that 8 months secondary forest had dominated by pioneer plant of grass (Scleria sp.). Six-year secondary forest had dominated by pioneer trees such as Macaranga and climax species such as Shorea and Adenanthera. High abundance (20% and 26 %) of climax vegetation saplings in 6-year­old secondary forest increased its similarity index close to primary forest. The high available phosphorus content in soil may induce the growth of both pioneer and climax plant species in the 6-year secondary forest compared to other forests. The different trend showed in the 8 month secondary forests that selective logging practices enriched soil nutrients contents except for available phosphorous.</p><p><strong>Keywords</strong> : Selective logging; succession; lowland Dipterocarp forest; west Kutai</p>

The consequences of selective logging for Bornean lowland forest birds

1992 ◽  
Vol 335 (1275) ◽  
pp. 443-457 ◽  
Keyword(s):  
Population Dynamics ◽  
Bird Species ◽  
Selective Logging ◽  
Forest Birds ◽  
Primary Forest ◽  
Bird Conservation ◽  
Lowland Forest ◽  
Dipterocarp Forest ◽  
Logged Forest ◽  
Lowland Dipterocarp Forest

In lowland dipterocarp forest in Sabah, Malaysia, most primary forest bird species were present in areas selectively logged eight years previously. However, certain taxa, notably flycatchers, woodpeckers, trogons and wren-babblers, became comparatively rare. In contrast, nectarivorous and opportunistic frugivorous species were significantly more abundant. Few species appeared to change foraging height, but netting rates suggest that the activity of some species had increased, or that some birds ranged over larger areas after logging. Although there is still much to be learned about the survival of birds in logged forest, large areas of this habitat are important for bird conservation. However, the susceptibility of logged forest to fire, and our present incomplete understanding of bird behaviour and population dynamics in logged forests mean that they should not be considered by conservationists as alternatives to reserves of primary forest.

scholarly journals Shifting cultivation along the Trans-African Highway and its impact on the understorey bird community in the Ituri Forest, Zaire

1997 ◽  
Vol 7 (4) ◽  
pp. 317-329 ◽  
Author(s):  
Andrew J. Plumptre
Keyword(s):  
Species Composition ◽  
Forest Structure ◽  
Shifting Cultivation ◽  
Secondary Forest ◽  
Bird Species ◽  
Bird Community ◽  
Selective Logging ◽  
Primary Forest ◽  
Forest Sites ◽  
Ituri Forest

summarySince the 1940s, horticulturalists (the Lese) have been settled along the sides of the roads that traverse a large part of the forest in eastern Zaire. These people have maintained their lifestyle of shifting cultivation and trade with the Mbuti pygmies. This has resulted in corridors of heavily disturbed and regenerating forest. The results of a study of the understorey bird community at three sites in the Okapi Reserve in the Ituri forest in Zaire are reported here. Two primary forest sites (one monodominant Gilbertiodendron forest) in the Reserve were compared with an area of forest disturbed by shifting cultivation. The two primary forest sites were more similar in species composition than they were to secondary forest created by shifting cultivation. Shifting cultivation had a more severe impact on the bird community than selective logging does in forests in Uganda and Malaysia. There was a shift following disturbance from a bird community dominated by insectivores to one with more frugivore-insectivores and nectarivores. Ground thrushes Zoothera spp. and flycatchers were abundant in the monodominant Gilbertiodendron forest and appear to suffer from the change in forest structure following disturbance. The Okapi Reserve currently conserves some important bird species and at least 333 birds have been reported to occur there.

The dipterous Leptophlebiidae of Borneo (Insecta, Ephemeroptera)

Zootaxa ◽  
2018 ◽  
Vol 2490 (1) ◽  
pp. 33 ◽  
Author(s):  
MICHEL SARTORI ◽  
PASCALE DERLETH
Keyword(s):  
New Species ◽  
New Genus ◽  
Dipterocarp Forest ◽  
East Kalimantan ◽  
Single Stream ◽  
The Family ◽  
Lowland Dipterocarp Forest

This paper deals with two mayfly species (Ephemeroptera) belonging to the family Leptophlebiidae and inhabiting a lowland dipterocarp forest in East Kalimantan (Indonesia). Isca lea sp. nov. is relatively abundant in our study site and differs from all other known species by its 7 th gill composed of two lamellae instead of one. A peculiar species previously identified as Dipterophlebiodes sp. (Leptophlebiinae) belongs to a new genus Kilariodes gen. nov. (Atalophlebiinae), characterized, among others, by the shape of the mandibles and of the labrum. Kilariodes marifae sp. nov. is extremely rare and has been found in a single stream. Both new species lack posterior wings or wing pads.

Tropical secondary forests

1995 ◽  
Vol 19 (2) ◽  
pp. 159-172 ◽  
Author(s):  
R.T. Corlett
Keyword(s):  
Tropical Forest ◽  
Forest Succession ◽  
Secondary Forest ◽  
Selective Logging ◽  
Regulatory Function ◽  
Primary Forest ◽  
Secondary Forests ◽  
Surrounding Landscape ◽  
A Site ◽  
Forest Lands

The clearance, cultivation and abandonment of tropical forest lands has resulted in a rapid increase in the area of tropical secondary forests. Despite their growing extent, however, these forests have received relatively little attention from ecologists, foresters and conservationists. In this article the use of the term 'secondary forest' is restricted to forests which have reoccupied a site after clearance. Forests resulting from selective logging and other disturbances which permit most plant species to survive on the site are excluded. The literature on tropical forest succession is reviewed, showing the importance of the type, intensity and scale of the disturbance, the nature of the surrounding landscape and the composition of the surviving disperser fauna. The value of tropical secondary forests is compared to primary forest, with regards to regulatory function, commercial value and conservation significance. Finally, major research needs are briefly discussed.

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