Genetic variation and gene flow among Prunus cerasoides D. Don populations in northern Thailand: analysis of a rehabilitated site and adjacent intact forest

Pakkad, Greuk; Mazrooei, S.; Blakesley, David; James, C. M.; Elliott, Stephen; Tapio, Luoma-Aho; Koskela, Jarkko

doi:10.1007/s11056-007-9059-2

Cited by 14 publications

(10 citation statements)

References 26 publications

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“…Approximately one third had higher diversity in the revegetation plantings (35.7%; 10/28) and one study reported consistent estimates between revegetation and source sites across all measured metrics. The three remaining studies had mixed resultshigher H e though lower A and A r in revegetation [63]; higher A though lower H e [58]; higher A r though lower H e and A (one pairing in [50]).…”

Section: (D) Additional Comparisons-inbreeding Source Sites Cohort mentioning

confidence: 98%

How well do revegetation plantings capture genetic diversity?

et al. 2019

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Revegetation plantings are a key management tool for ecological restoration. Revegetation success is usually measured using ecological traits, however, genetic diversity should also be considered as it can influence fitness, adaptive capacity and long-term viability of revegetation plantings and ecosystem functioning. Here we review the global literature comparing genetic diversity in revegetation plantings to natural stands. Findings from 48 studies suggest variable genetic outcomes of revegetation, with 46% demonstrating higher genetic diversity in revegetation than natural stands and 52% demonstrating lower diversity. Levels of genetic diversity were most strongly associated with the number of source sites used—where information was available, 69% of studies showing higher genetic diversity in revegetation reported using multiple provenances, compared with only 33% for those with lower diversity. However, with a few exceptions, it was unclear whether differences in genetic diversity between revegetation and natural stands were statistically significant. This reflected insufficient reporting of statistical error and metadata within the published studies, which limited conclusions about factors contributing to patterns. Nonetheless, our findings indicate that mixed seed sourcing can contribute to higher genetic diversity in revegetation. Finally, we emphasize the type of metadata needed to determine factors influencing genetic diversity in revegetation and inform restoration efforts.

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Section: (D) Additional Comparisons-inbreeding Source Sites Cohort mentioning

confidence: 98%

How well do revegetation plantings capture genetic diversity?

et al. 2019

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“…The recovery of biodiversity and carbon accumulation were assessed by CMU graduate students for their thesis projects, by comparing among framework species trial plots of various ages, non-planted control plots (undergoing natural regeneration) and nearest mature forest (Pah Dong Saeng). Biodiversity studies have investigated species richness, diversity and the community composition of birds, mammals, ground flora, soil microbes, lichens and bryophytes [7][8][9][10], as well as the maintenance of genetic diversity across generations within some of the framework species planted [11][12][13]. Carbon studies have covered litter fall, soil carbon, and above-ground carbon in trees [14][15][16].…”

Section: Monitoringmentioning

confidence: 99%

Collaboration and Conflict—Developing Forest Restoration Techniques for Northern Thailand’s Upper Watersheds Whilst Meeting the Needs of Science and Communities

Elliott

Chairuangsri

Kuaraksa

et al. 2019

Forests

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This paper describes an early example of Forest Landscape Restoration (FLR), which resulted from collaboration between a university, local community, and national park authority in the upper Mae Sa Valley, near Chiang Mai City, northern Thailand. Working together, the Hmong community of Ban Mae Sa Mai, Doi Suthep National Park Authority and Chiang Mai University’s Forest Restoration Research Unit (FORRU-CMU) established a chronosequence of trial restoration plots from 1996 to 2013, to test the framework-species method of forest restoration. The project developed successful restoration techniques and gained insights into the factors that influence villagers’ participation in forest restoration. Recovery of forest biomass, carbon storage, structure, biodiversity and ecological functioning exceeded expectations. Villagers appreciated the improved water security resulting from the project, as well as a better relationship with the park authority and increased land security. Recently, however, tree chopping and a breakdown in fire-prevention measures (perhaps symptoms of “project fatigue”) have threatened the sustainability of the plot system. The project demonstrates the importance of a sound scientific basis for forest restoration projects, long-term institutional support, and appropriate funding mechanisms, to achieve sustainability.

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“…In addition, relying on few, more abundant and easy to collect tree species for tree planting may progressively lead to homogeneous landscapes. Finally, a further risk is posed by the successive use of seed collected from planted stands with low genetic diversity [55,62]; this practice would lead over time to more pronounced effects of a narrow genetic base in subsequent populations.…”

Section: Seed Sources Used By Farmersmentioning

confidence: 99%

How Diverse is Tree Planting in the Central Plateau of Burkina Faso? Comparing Small-Scale Restoration with Other Planting Initiatives

Valette

Vinceti

Traoré³

et al. 2019

Forests

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In the Sahelian region, different approaches are being used to halt environmental degradation and restore tree cover, with varying degrees of success. Initiatives vary according to projects’ objectives, type of land to restore, and technical practices used (natural regeneration, farmer-managed assisted regeneration, enrichment planting, etc.). This study investigates tree planting choices and selection of tree seed sources in some villages of the Central region of Burkina Faso. The study targeted 96 farmers and compared planting practices adopted by farmers involved in small-scale forest restoration using fences, with those not involved in this initiative. The objective was to understand what portfolio of tree species were planted, what factors influenced tree species selection, what tree seed sources were used, what collection practices were generally adopted, and whether there were significant differences between types of farmers. The results showed that the use of fencing to promote forest restoration support the planting of a more diverse portfolio of tree species than other small scale efforts and includes a greater representation of indigenous trees. Fenced plots have therefore a conservation value in landscapes where the diversity of tree species is progressively declining. In addition to the use of fences, some other key factors affect tree planting, mainly land tenure, availability of diverse tree seed sources, and availability of land. Farmers tend to collect directly most of the planting material they need, but in the majority of cases they do not follow recommended best practices. In light of the ambitious forest restoration targets of Burkina Faso and the need to provide diverse options to rural communities to enhance their resilience vis-à-vis increasing environmental challenges, strengthening the capacity of farmers in tree planting and establishing a robust tree seed systems are crucial targets.

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Genetic variation and gene flow among Prunus cerasoides D. Don populations in northern Thailand: analysis of a rehabilitated site and adjacent intact forest

Cited by 14 publications

References 26 publications

How well do revegetation plantings capture genetic diversity?

How well do revegetation plantings capture genetic diversity?

Collaboration and Conflict—Developing Forest Restoration Techniques for Northern Thailand’s Upper Watersheds Whilst Meeting the Needs of Science and Communities

How Diverse is Tree Planting in the Central Plateau of Burkina Faso? Comparing Small-Scale Restoration with Other Planting Initiatives

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