Species composition and turnover in a series of' permanent sample plots established during the 1930s and 1940s in Budongo, a semi-deciduous Ugandan forest, are reported. The plots were established as part of' a sequence first used to describe forest succession, five of' which have been maintained...
Sheil, Douglas
,
Jennings, S.
,
Savill, P.
,
[Long-term permanent plot observations of vegetation dynamics in Budongo, a Ugandan rain forest]
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Long-term permanent plot observations of vegetation dynamics in Budongo, a Ugandan rain forest
Although forest tree pattern-dynamics has long been a focus for ecological theory, many aspects of basic analysis remain problematic.This paper describes, examines and illustrates an 'extreme-value' approach to clump detection. Simulations demonstrate that the approach, though simple, is sensitiv...
Sheil, Douglas
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Ducey, M.J.
,
[An extreme-value approach to detect clumping and an application to tropical forest gap-mosaic dynamics]
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An extreme-value approach to detect clumping and an application to tropical forest gap-mosaic dynamics
A set of Permanent Sample Plots (PSP) was established in the lowland mixed dipetrocarp forest within PT Inhutani II concession at Malinau (2o45’ – 3o15’N, 116o30’), East Kalimantan (Figure 1). They were designed for comparative studies of conventional logging (CNV) and reduced-impact logging (RIL...
Kartawinata, K.
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Priyadi, H.
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Sheil, Douglas
,
Riswan, S.
,
Sist, P.
,
Machfudh
,
[A field guide to the permanent sample plots in the conventional logging blocks 28 & 29 at CIFOR Malinau research forest East Kalimantan]
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A field guide to the permanent sample plots in the conventional logging blocks 28 & 29 at CIFOR Malinau research forest East Kalimantan
Selective logging applied in tropical forests is based on one universal criterion: a minimum diameter cutting limit for all commercial timber species. Minimum diameter cutting limits in mixed dipterocarp forests of the Malesia region lead to high felling intensities (10–20+ trees per hectare). Su...
Permanent sample plots (PSP) are an important tool in monitoring forest dynamics and change. In Malinau Research Forest, East Kalimantan, 24 PSPs of 1 ha each were established and all trees with dbh = 20 cm were identified and their diameters were measured in 1998 prior to logging operations and ...
Priyadi, H.
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Sheil, Douglas
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Kartawinata, K.
,
Sist, P.
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Gunarso, P.
,
Kanninen, M.
,
[Tree growth and forest regeneration under different logging treatments in permanent sample plots of a hill mixed dipterocarps forest, Malinau Research Forest, Malinau, East Kalimantan, Indonesia]
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Tree growth and forest regeneration under different logging treatments in permanent sample plots of a hill mixed dipterocarps forest, Malinau Research Forest, Malinau, East Kalimantan, Indonesia
A set of Permanent Sample Plots (PSP) was established in the lowland mixed dipetrocarp forest within PT Inhutani II concession at Malinau (2º45’ – 3º15’N, 116º30’), East Kalimantan (Figure 1). They were designed for comparative studies of conventional logging (CNV) and reduced-impact logging (RIL...
Kartawinata, K.
,
Priyadi, H.
,
Sheil, Douglas
,
Riswan, S.
,
Sist, P.
,
Machfudh
,
[A field guide to the permanent sample plots in the reduced-impact logging block 27 at CIFOR Malinau research forest East Kalimantan]
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A field guide to the permanent sample plots in the reduced-impact logging block 27 at CIFOR Malinau research forest East Kalimantan
C. H. Cannon et al. report an increase in tree diversity 8 years after selective logging in Borneo. These results accord with theoretical expectations and with previous observations; however, the significance of these findings is debatable. Cannon et al.'s analyses are confounded by differences i...
Sheil, Douglas
,
Sayer, Jeffrey A.
,
O'Brien, T.
,
[Tree diversity and conservation in logged rainforest]
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Tree diversity and conservation in logged rainforest
Poorter, L.
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Hawthorne, W.
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Bongers, F.
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Sheil, Douglas
,
[Maximum size distributions in tropical forest communities: relationships with rainfall and disturbance]
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Maximum size distributions in tropical forest communities: relationships with rainfall and disturbance
Researchers frequently compare rates of change based on counts (e.g. mortality, germination, infection, recruitment). The estimation of mortality and recruitment rates from tree census data have been discussed elsewhere. However, rather than estimating absolute rates, researchers may often need t...
Sheil, Douglas
,
[A simple graphical method for the comparisons of mortality, recruitment and other count defined 'event-rates']
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A simple graphical method for the comparisons of mortality, recruitment and other count defined 'event-rates'
Droughts and fires are increasingly recognized as a significant component of tropical rain forest dynamics but detailed large-scale assessments of such events are scarce. This paper examines tree mortality in a lowland rainforest in East Kalimantan after an extreme drought (the most severe ever r...
Nieuwstadt, M.G.L. van
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Sheil, Douglas
,
[Drought, fire and tree survival in a Borneo rain forest, East Kalimantan, Indonesia]
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Drought, fire and tree survival in a Borneo rain forest, East Kalimantan, Indonesia