Impact of selective logging on genetic composition and demographic structure of four tropical tree species

Деген, Бернд; Blanc, Lilian; Caron, Henri; Maggia, Laurent; Kremer, Antoine; Gourlet‐Fleury, Sylvie

doi:10.1016/j.biocon.2006.02.014

Cited by 96 publications

(87 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…If this would be the rule for the species reproductive strategy, selective logging on the reproductive size class is provoking a severe impact on the recruitment of individuals for maintenance of the species. The impact may be even stronger than that predicted by models assuming that fertility is constant or randomly distributed among adult individuals and only influenced by tree diameter (Gourlet-Fleury et al 2005, Degen et al 2006. Lobo et al (2007) demonstrated that selective logging produces a decrease in seedling establishment compared to areas with similar adult density but not disturbed by this activity, and the condition remains even 5 years after the extraction.…”

Section: Logging Effectsmentioning

confidence: 97%

Phenology and recruitment of Caryocar costaricense (Caryocaceae), an endemic tree species of Southern Central America

Solís¹,

Lobo²,

Grimaldo³

2008

RBT

View full text Add to dashboard Cite

Basic aspects of the reproductive biology are largely unknown for most tropical tree species, although they are important elements to understand the impacts of anthropogenic activities as logging and forest fragmentation on these populations. In this study, data are presented on leaf and reproductive phenology, fruit production and seedling demography of a population of an endemic tree species of Southern Central America, Caryocar costaricense. This species has been affected by selective logging and forest fragmentation of its habitat. Phenology was studied by observation of 15-22 tree crowns during two reproductive periods (2003 and 2005). Circular plots were established around 11 adult trees to count the number of fallen fruits and seedlings during three years (2003, 2004, 2005). Although reproductive phenology is restricted to the short dry season in this species, seed germination occurred year-round. Fruit and seedling production shows a strong inter-individual variation within the study populations, with two large trees producing nearly 50%-70% of the fruits and seedlings during two years. Most of the seeds that fall beneath the tree crown are covered by litterfall or removed by fauna. We found evidence that many of these seeds become part of a seed bank in the forest floor. Because of the observed reproductive dominance of few large trees in these populations, we propose that selective logging on reproductive trees can severely impact the recruitment of this species. Rev. Biol. Trop. 57 (3): 771-780. Epub 2009 September 30.

show abstract

Section: Logging Effectsmentioning

confidence: 97%

Phenology and recruitment of Caryocar costaricense (Caryocaceae), an endemic tree species of Southern Central America

Solís¹,

Lobo²,

Grimaldo³

2008

RBT

View full text Add to dashboard Cite

show abstract

“…The model defines an area of forest with sufficient trees (ca 250 trees) to look at long-term genetic processes. For a detailed description of the model see Degen et al (2006).…”

Section: Eco-gene Modelmentioning

confidence: 99%

“…Assessment of sustainable forest management options requires long-term testing with a range of logging intensities, varied cutting cycles and minimum cutting diameters to understand the effects on the population of remaining trees . The majority of studies on the long-term impacts of logging in tropical trees have been based on field experiments (Silva et al, 1989;Alder and Silva, 2000), although increasing numbers are based on modelling (for example, Barreto et al, 1998;Pinard and Cropper, 2000;Schulze et al, 2005;Degen et al, 2006;Valle et al, 2006;van Gardingen et al, 2006;Sebbenn et al, 2008). For field-based experiments, data cover relatively short time intervals, before and after logging, that is incapable of detecting the long-term impacts of logging, particularly over successive logging cycles.…”

Section: Introductionmentioning

confidence: 99%

Long-term impacts of selective logging on two Amazonian tree species with contrasting ecological and reproductive characteristics: inferences from Eco-gene model simulations

et al. 2014

View full text Add to dashboard Cite

The impact of logging and subsequent recovery after logging is predicted to vary depending on specific life history traits of the logged species. The Eco-gene simulation model was used to evaluate the long-term impacts of selective logging over 300 years on two contrasting Brazilian Amazon tree species, Dipteryx odorata and Jacaranda copaia. D. odorata (Leguminosae), a slow growing climax tree, occurs at very low densities, whereas J. copaia (Bignoniaceae) is a fast growing pioneer tree that occurs at high densities. Microsatellite multilocus genotypes of the pre-logging populations were used as data inputs for the Eco-gene model and post-logging genetic data was used to verify the output from the simulations. Overall, under current Brazilian forest management regulations, there were neither short nor long-term impacts on J. copaia. By contrast, D. odorata cannot be sustainably logged under current regulations, a sustainable scenario was achieved by increasing the minimum cutting diameter at breast height from 50 to 100 cm over 30-year logging cycles. Genetic parameters were only slightly affected by selective logging, with reductions in the numbers of alleles and single genotypes. In the short term, the loss of alleles seen in J. copaia simulations was the same as in real data, whereas fewer alleles were lost in D. odorata simulations than in the field. The different impacts and periods of recovery for each species support the idea that ecological and genetic information are essential at species, ecological guild or reproductive group levels to help derive sustainable management scenarios for tropical forests.

show abstract

“…For., Piracicaba, v. 44, n. 111, p. 545-555, set. 2016 DOI: dx.doi.org/10.18671/scifor.v44n111.01 regulamentados de manejo sustentável têm revelado que as premissas da sustentabilidade florestal não têm sido alcançadas para a maioria das espécies comumente exploradas (MOSTACEDO; FREDE-RICKSEN, 1999;DAUBER et al, 2005;DEGEN et al, 2006;GOURLET-FLEURY et al, 2005;PARK et al, 2005;SIST, 2007;SEBBENN et al, 2008;RONDON et al, 2009;ROZENDAAL et al, 2010).…”

Section: Introductionunclassified

“…Isso pode levar a impactos negativos na dinâmica de crescimento e reprodução da floresta como um todo. Os poucos trabalhos que buscaram comparar as espécies amazônicas quanto à oferta futura de volume de madeira após a primeira exploração indicaram diferenças significativas entre as espécies, sendo umas mais resilientes do que outras (DAUBER et al, 2005;DEGEN et al 2006;SEBBENN et al, 2008). Dessa forma, estratégias de manejo espécie--específicas passam a ser de extrema relevância, considerando não apenas condições de crescimento, mas também variáveis ecológicas e reprodutivas (AZEVEDO et al, 2007;SEBBENN et al, 2008;LACERDA et al, 2013;VINSON et al, 2015).…”

Section: Introductionunclassified

Impacto da exploração madeireira na diversidade genética e área basal de jatobá na Amazônia sul-ocidental

Silva¹,

Wadt²,

Mesquita³

et al. 2016

Sci. For.

View full text Add to dashboard Cite

Impact of selective logging on genetic composition and demographic structure of four tropical tree species

Cited by 96 publications

References 55 publications

Phenology and recruitment of Caryocar costaricense (Caryocaceae), an endemic tree species of Southern Central America

Phenology and recruitment of Caryocar costaricense (Caryocaceae), an endemic tree species of Southern Central America

Long-term impacts of selective logging on two Amazonian tree species with contrasting ecological and reproductive characteristics: inferences from Eco-gene model simulations

Impacto da exploração madeireira na diversidade genética e área basal de jatobá na Amazônia sul-ocidental

Contact Info

Product

Resources

About