Are we approaching ‘peak timber’ in the tropics?

Shearman, Philip; Bryan, Jane E.; Laurance, William F.

doi:10.1016/j.biocon.2011.10.036

Cited by 97 publications

(87 citation statements)

References 62 publications

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“…Moreover, log production still continues to increase despite earlier assertions that peak production was reached in 2009 (Fig. 2) [9]. Native landowners receive smaller returns from their logs than the national government.…”

Section: Economic Interestsmentioning

confidence: 92%

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Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Katovai

Edwards

Laurance

2015

Tropical Conservation Science

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Forests of Asia-Pacific islands have undergone degradation by some of the worst-known selective logging practices in the tropics. It is unclear whether severely damaged forests can return to a pre-logging state via natural regeneration, or whether active restoration is required. In this review, we highlight how the socioeconomic dynamics in the Solomon Islands promote excessive logging, resulting in highly degraded forests. We detail seven key elements currently promoting excessive logging in this region: (i) economic interests, (ii) corruption, (iii) poor employment conditions in the logging sector, (iv) high forest accessibility, (v) resource limitations for forest monitoring, (vi) contention over logging benefits, and (vii) a paucity of information for policy development. Though research on the regeneration capacity of logged forests in the Solomon Islands remains extremely limited, we suggest that some logged forests in the country may require active restoration-especially those that have been most heavily damaged. Our argument is based on previous tree planting initiatives in logged forest in the 1970s and 1980s. We propose three broad restoration techniques-enrichment planting, direct seeding, and the use of artificial perches-as viable options to help restore logged forests in the Solomon Islands. Lastly, we recommend the conservation-concession model to aid forest restoration, given its recent success in the region.

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Section: Economic Interestsmentioning

confidence: 92%

“…However, logging practices in this region are usually unsustainable, leaving little chance for natural regeneration processes to restore forest stands to pre-cut levels of biodiversity, carbon storage, and ecological functioning (e.g., Fig. 1C-D) [9][10].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Katovai

Edwards

Laurance

2015

Tropical Conservation Science

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“…Concerns have also been expressed regarding 'peak timber' in the tropics, reflecting widespread overexploitation of timber (Shearman et al, 2012), and a global decline in large old trees, which may threaten ecosystem integrity (Lindenmayer et al, 2012). Such factors, together with the ongoing loss and degradation of forest, can potentially threaten large numbers of tree species.…”

Section: Discussionmentioning

confidence: 99%

Towards a Global Tree Assessment

Newton

Oldfield

Rivers

et al. 2015

Oryx

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Tree species are of high economic, cultural and ecological value. However, increasing numbers of tree species are potentially at risk of extinction because of human activities, including forest loss and degradation, overharvesting, fire and grazing. Emerging threats include climate change and its interaction with spread of pests and diseases. The impact of such threats on the conservation status of trees is poorly understood. Here we highlight the need to conduct a comprehensive conservation assessment of the world's tree species, building on previous assessments undertaken as part of the IUCN Red List. We suggest that recent developments in plant systematics, on-line databases, remote sensing data and associated analytical tools now offer an unprecedented opportunity to conduct such a global assessment. While this represents an ambitious goal, we provide an overview of how a Global Tree Assessment could be achieved in practice, through participative, open-access approaches to data sharing and evaluation.

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“…Timber extraction in Amazonian forests holds a huge potential for growth in terms of both spatial extent and revenue (FAO 2010, Shearman et al 2012, and this is often considered a relatively benign land-use in terms of biodiversity responses to selective logging (Gibson et al 2011). Despite its importance in the neotropics, there are still insufficient studies attempting to understand the effects of tropical forest timber extraction on medium and large vertebrates (Laufer et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Effects of reduced-impact logging on medium and large-bodied forest vertebrates in eastern Amazonia

2015

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LAUFER, J., MICHALSKI, F., PERES, C.A. Effects of reduced-impact logging on medium and largebodied forest vertebrates in eastern Amazonia.http://dx.doi.org/10. 1590/1676-06032015013114Abstract: Standard line-transect census techniques were deployed to generate a checklist and quantify the abundance of medium and large-bodied vertebrate species in forest areas of eastern Amazonia with and without a history of reduced-impact logging (RIL). Three areas were allocated a total of 1,196.9 km of line-transect census effort. Sampling was conducted from April to June 2012 and from April to August 2013, and detected 29 forest vertebrate species considered in this study belonging to 15 orders, 20 families and 28 genera. Additionally, eight species were recorded outside census walks through direct and indirect observations. Of this total, six species are considered vulnerable according to IUCN (Ateles paniscus, Myrmecophaga tridactyla, Priodontes maximus, Tapirus terrestris, Tayassu peccary, Chelonoidis denticulata). Observed species richness ranged from 21 to 24 species in logged and unlogged areas, and encounter rates along transects were highly variable between treatments. However, the relative abundance of species per transect did not differ between transects in logged and unlogged forests. Of the species detected during censuses, only three showed different relative abundance between the two treatments (Saguinus midas, Tinamus spp. and Dasyprocta leporina). Our results show that the effect of RIL forest management was a relatively unimportant determinant of population abundance for most medium and large vertebrates over the time period of the survey. Keywords: fauna, forest management, tropical rainforest, mammals, birds. LAUFER, J., MICHALSKI, F., PERES, C.A. Efeitos da exploração de impacto reduzido em vertebrados de médio e grande porte na Amazônia oriental.http://dx.doi.org/10. 1590/1676-06032015013114Resumo: Técnicas padronizadas de censo por transecçõ es lineares foram empregadas para gerar uma lista e quantificar a abundâ ncia de espécies de vertebrados de médio e grande porte em á reas de floresta na Amazô nia oriental, com e sem uma histó ria de exploração de impacto reduzido (EIR). Três áreas foram amostradas com um esforço total de 1.196,9 km de censo ao longo de transectos lineares. A amostragem foi realizada de abril-junho de 2012 e de abril-agosto de 2013, e detectou 29 espécies florestais de vertebrados consideradas neste estudo pertencentes a 15 ordens, 20 famílias e 28 gêneros. Adicionalmente, oito espécies foram registradas fora dos censos ao longo dos transectos por meio de observaçõ es diretas e indiretas. Desse total, seis espécies são consideradas vulneráveis de acordo com a IUCN (Ateles paniscus, Myrmecophaga tridactyla, Priodontes maximus, Tapirus terrestris, Tayassu pecari, Chelonoidis denticulata). A riqueza das espécies observada variou de 21 a 24 espécies em áreas com e sem corte seletivo, e as taxas de encontro ao longo dos transectos foram bastante variá veis entre os tratamentos. No entan...

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Are we approaching ‘peak timber’ in the tropics?

Cited by 97 publications

References 62 publications

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Towards a Global Tree Assessment

Effects of reduced-impact logging on medium and large-bodied forest vertebrates in eastern Amazonia

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