The consequences of selective logging for Bornean lowland forest birds

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.

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Selective logging reduces body size in omnivorous and frugivorous tropical forest birds

Biological Conservation ◽

10.1016/j.biocon.2021.109036 ◽

2021 ◽

Vol 256 ◽

pp. 109036

Author(s):

Simone Messina ◽

David Costantini ◽

Suzanne Tomassi ◽

Cindy C.P. Cosset ◽

Suzan Benedick ◽

...

Keyword(s):

Body Size ◽

Tropical Forest ◽

Selective Logging ◽

Forest Birds

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Habitat and population estimates of some threatened lowland forest bird species in Tambopata, south-east Peru

Bird Conservation International ◽

10.1017/s0959270904000334 ◽

2004 ◽

Vol 14 (4) ◽

pp. 261-277 ◽

Cited By ~ 6

Author(s):

HUW LLOYD

Keyword(s):

Bird Species ◽

Selective Logging ◽

Floodplain Forest ◽

Primary Forest ◽

Population Estimates ◽

Lowland Forest ◽

Density Estimates ◽

Forest Bird ◽

Madre De Dios ◽

Forest Habitats

Surveys of threatened lowland forest bird species and forest habitats were conducted during a 21-month census of lowland bird communities in Tambopata, Department of Madre de Dios, south-east Peru. A combination of distance sampling census methods and direct counts was used for the census in five sites located along the Rio Madre de Dios and Rio Tambopata. All five sites consisted of different forest types with significantly different habitat components. Three of these sites were classified as primary forest habitats whilst the remaining two were classified as disturbed forests. Population densities were calculated for eight of the threatened species recorded during the census. Density estimates of non-bamboo specialists were higher in primary forest habitats than in disturbed forest habitats. Density estimates of most bamboo specialists were higher in primary Old Floodplain forest with extensive bamboo understorey than in primary Middle/Upper Floodplain forest with smaller, patchy areas of bamboo understorey. Calculation of regional population estimates based on the amount of forest cover from satellite photographs shows that only two of the threatened bird species have substantial populations currently protected by the Parque Nacional Bahuaja-Sonene and Reservada Nacional de Tambopata. Selective logging operations that reduce overall tree biomass and remove a large proportion of palm tree species from primary forest habitats will have an adverse affect on local populations of four of the threatened bird species in the region.

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Gamebird responses to anthropogenic forest fragmentation and degradation in a southern Amazonian landscape

PeerJ ◽

10.7717/peerj.3442 ◽

2017 ◽

Vol 5 ◽

pp. e3442 ◽

Cited By ~ 10

Author(s):

Fernanda Michalski ◽

Carlos A. Peres

Keyword(s):

Forest Fragmentation ◽

Census Data ◽

Forest Disturbance ◽

Selective Logging ◽

Forest Birds ◽

Line Transect ◽

Forest Patches ◽

Forest Patch ◽

Species Persistence ◽

Gamebird Species

Although large-bodied tropical forest birds are impacted by both habitat loss and fragmentation, their patterns of habitat occupancy will also depend on the degree of forest habitat disturbance, which may interact synergistically or additively with fragmentation effects. Here, we examine the effects of forest patch and landscape metrics, and levels of forest disturbance on the patterns of persistence of six gamebird taxa in the southern Brazilian Amazon. We use both interview data conducted with long-term residents and/or landowners from 129 remnant forest patches and 15 continuous forest sites and line-transect census data from a subset of 21 forest patches and two continuous forests. Forest patch area was the strongest predictor of species persistence, explaining as much as 46% of the overall variation in gamebird species richness. Logistic regression models showed that anthropogenic disturbance—including surface wildfires, selective logging and hunting pressure—had a variety of effects on species persistence. Most large-bodied gamebird species were sensitive to forest fragmentation, occupying primarily large, high-quality forest patches in higher abundances, and were typically absent from patches <100 ha. Our findings highlight the importance of large (>10,000 ha), relatively undisturbed forest patches to both maximize persistence and maintain baseline abundances of large neotropical forest birds.

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Use of an Exotic Tree Plantation by Bornean Lowland Forest Birds

The Auk ◽

10.2307/4088417 ◽

1993 ◽

Vol 110 (3) ◽

pp. 529-540 ◽

Cited By ~ 58

Author(s):

Shaibal S. Mitra ◽

Frederick H. Sheldon

Keyword(s):

Forest Birds ◽

Tree Plantation ◽

Lowland Forest ◽

Exotic Tree

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Effects of 50years of selective logging on demography of trees in a Malaysian lowland forest

Forest Ecology and Management ◽

10.1016/j.foreco.2013.08.057 ◽

2013 ◽

Vol 310 ◽

pp. 531-538 ◽

Cited By ~ 12

Author(s):

Toshihiro Yamada ◽

Tetsuro Hosaka ◽

Toshinori Okuda ◽

Abd Rahman Kassim

Keyword(s):

Selective Logging ◽

Lowland Forest

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Forest land-use in Sabah, Malaysia: an introduction to Danum Valley

Philosophical Transactions of the Royal Society B Biological Sciences ◽

10.1098/rstb.1992.0025 ◽

1992 ◽

Vol 335 (1275) ◽

pp. 331-339 ◽

Cited By ~ 116

Keyword(s):

National Parks ◽

Forest Ecology ◽

Forest Disturbance ◽

Research Programme ◽

The State ◽

Selective Logging ◽

Primary Forest ◽

Lowland Forest ◽

Conservation Area ◽

Leading Role

The Malaysian state of Sabah occupies an area of 73 371 km 2 which is about 10% of the island of Borneo. A bout 60% of the land area is forested and 48% is gazetted as Permanent Forest Reserve or State or National Parks. The largest agent of forest disturbance is the timber industry, which plays a leading role in the state economy. A statutory body, the Sabah Foundation, holds a 100-year timber concession of 973 000 ha (9730 km 2 ) in the southeast of the state. Of this concession 9.7% has been reserved for conservation, including 43 800 ha (438 km 2 ) of uninhabited, mostly lowland forest in an area called Danum Valley. Since 1986, this has been the site of a field centre and a collaborative research programme devoted to comparative study of primary forest ecology and the impacts of selective logging. The paper includes a summary account of the ecology of the Danum Valley Conservation Area.

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