Community Forest Management in the Maya Biosphere Reserve (MBR; Petén, Guatemala) has been recognized internationally for yielding forest conservation and socioeconomic benefits. However, the effect of current timber harvesting practices on the genetic diversity of timber species populations has not previously been documented. This study assessed the effects of timber harvesting on the genetic diversity and viability of regeneration of the most commercially important timber species in the MBR: big-leaf mahogany (Swietenia macrophylla King). Trees and seeds were sampled for two consecutive years in two Forest Management Units of the Multiple Use Zone (MUZ) of the MBR: Cruce a la Colorada and Carmelita. We correlated genetic diversity parameters (as measured using nuclear microsatellites) with seed germination percentages and compared genetic diversity of adults and seeds in stands that had been affected by timber harvesting and those that had not. We found a significant correlation between seed germination percentages (81–83%) and observed heterozygosity (rho=0.27), confirming that genetic diversity is important to regeneration success. No significant differences were found in allelic richness (AR), expected and observed heterozygosity (HE and HO), or inbreeding (FIS), between adults and seeds in harvested vs. undisturbed stands; or before and after timber harvesting. We found low inbreeding levels (FIS=0.040–0.094), low biparental inbreeding (0–0.01), and high outcrossing rates (0.925–0.970) in the populations of S. macrophylla analyzed. Our study therefore provides evidence that genetic diversity in big-leaf mahogany populations was not diminished by one cutting cycle under current practices of community forest management in the MUZ of the MBR.

The potential of forest foods to address malnutrition, food insecurity and poor dietary intake is increasingly being recognized. However, most existing data presents average results of proximate analysis, overlooking the opportunities to document how forest foods contribute to nutrition, food security and dietary intake. In this study, food security was estimated using the HFIAS score while dietary intake was estimated using FFQ recalls among 720 households in and around six logging concessions in Cameroon, DR Congo and Gabon. There was a high diversity of forests foods consumed, with DR Congo (FFCS=16.2) registering the highest number. Cameroon had the highest number of food groups (HDDS=12.5) while Gabon had the highest number of food varieties (FVS=24.5). Despite a highly diverse pool of wild foods in the region, most households (82%) practicing farming on logged land suffered from food insecurity. A significant inverse correlation was observed between the HFIAS score and the FFCS (r 2 =–0.26, P=0.0002), revealing that forest foods can play a role in ensuring food security and nutrition among populations near forest concessions. The chi-square test revealed that age >46 years, and access to income from business or salaries were associated with food security. Further work is required to document how wild forest foods can contribute to improved diets among these populations, including documenting the nutrient composition of more forest foods, integrating them into regional dietary guidelines and encouraging their domestication.

The natural regeneration of 27 commercial and potentially commercial timber species was studied on experimental clearings in managed forests on three 'ejidos' and one private property in Quintana Roo, Mexico. Eight 1/2 ha clear-cuts had been created 11 years earlier using each of three different clearing treatments: slashing, felling and leaving (felled); slashing, felling and burning (burned); and machine-clearing. More than 6000 trees of 108 species were identified and measured on six 49 m2 quadrats on each of the experimental clear-cuts, and on the same number and size of quadrats in the neighboring forest. The Basal Area (BA) of different commercial timber groups differed among treatments. After machine-clearing, 47% of the BA was made up of currently commercial timber species, 39% the more valuable decorative hardwoods and 8% lesser value softwoods; on burned treatments, 40% of the BA was currently commercial timber species, 29% decorative hardwoods and 11% softwoods. On both these treatments Lysiloma latisiliquum, one of the most valuable hardwoods, accounted for more than 25% of the BA. On felled treatments, 29% of the BA was commercial timber species; 6% decorative hardwoods, 22% softwoods and 1% precious woods (Swietenia macrophylla). On controls, currently commercial species accounted for 27% of the BA, of which 21% was decorative hardwoods, 5% softwoods and 1% precious woods. The decorative hardwood species L. latisiliquum did not occur on control plots and was rare on felled plots. Depending on the treatment, palms and non-commercial species accounted for 31% to 52% of the BA, and 'potentially commercial' species or 'other species of commercial interest' accounted for 15% to 41% of the BA. On felled clearings, 30% of individuals were sprouts, as compared to 19% on burned clearings and 11% after machine-clearing. The largest trees on burned and machine-made clearings had grown approximately 1 cm in diameter year-1. Opening small clearings within the forest matrix using the same slash and burn treatments that local farmers use to open their agricultural fields, or machines like bulldozers, stimulated the natural regeneration of commercially valuable decorative hardwood species, of which 75% have been classified as shadeintolerant. These do not regenerate satisfactorily under the current regime of selective logging. The silvicultural management system for the Maya Forest must include patch clear-cuts and the conservation of seed trees and their pollinators and dispersors to sustain the commercial timber value of the forest, and its biodiversity.

Local people in rural areas of the tropics depend on forests for a range of food resources, including protein-rich edible caterpillars, among them Imbrasia oyemensis and Cirina forda, which are important for nutrition and income. Sapelli (Entandrophragma cylindricum), the African mahogany, and Tali (Erythrophleum suaveolens) are food sources for these caterpillars; they are also among the most important timber species harvested from Congo Basin forests. This study quantified the yield of caterpillars from harvestable and precommercial sizes of trees of these two timber species to better understand the impact of logging on the availability of edible caterpillars to local people, and the implications for managing both timber and non-timber resources in industrial timber concessions. Caterpillars were collected and weighed beneath 50 Sapelli trees 23–190 cm DBH and 170 Tali trees 22–174 cm DBH on two timber concessions, from mid-August to mid-September, over two years. Caterpillars were found to descend from the trees during 5 days each year, and quantities varied between years. In both sample years, yields were significantly higher from harvestable trees larger than the minimum cutting diameter than from precommercial trees. Each harvestable Sapelli tree (≥ 80 cm DBH), yielded an average of 11.3 kg fresh weight of I. oyemensis year-1; smaller, precommercial trees yielded 5.4 kg tree−1year−1. Each harvestable Tali tree (≥ 60 cm DBH) yielded an average of 9.1 kg of C. forda year−1, as compared to 5.7 kg tree−1year−1 from precommercial trees. This means that industrial timber harvesting, which removes trees larger than the minimum cutting diameter, has a disproportionate effect on the availability of caterpillars. However, trees below the minimum cutting diameter also yield caterpillars, and may occur at higher densities. Guidelines that limit harvesting on steep slopes or near watercourses, or that call for retaining large trees as seed sources, also safeguard caterpillar yields. However, multiple resource management should consider proactive measures, which could include zoning areas near villages as sources of edible caterpillars, and protecting those trees from logging.

Extensive areas of Africa's humid tropical lowland forests have been allocated to timber concessions, but are also inhabited by villagers who obtain resources from the forest. Approximately 61% of timber species in the Congo Basin also yield locally used non-timber forest products (NTFP). Among these are fruits and oil from Moabi (Baillonella toxisperma), and edible caterpillars from Sapelli (Entandrophragma cylindricum), and Tali (Erythrophleum suaveolens). Participatory mapping was used to understand whether logging affects the availability of these food resources to men and women in villages near timber concessions in two areas of Cameroon. Mapping of collection trees and interviews of 20 male and 20 female collectors, in four villages near two logging concessions, showed that during 1-day collecting trips people walk an average of 2.7 km (± 1.42) to trees where they collect these resources. Food resources are typically collected by both men and women, but men travel further to specific trees, sometimes combining this with hunting excursions further into the forest. Only 14% of the collection trees were located within the logging concessions. However, 72% of Sapelli, 81% of Moabi, and 100% of Tali trees from which food resources were collected were larger than their legal felling diameters, meaning that logging could jeopardize the supply of foods from these species. Prioritizing food values over timber values of trees within a certain radius of villages, and excluding them from logging, would safeguard villagers' access to these food resources. Already, negotiations between villagers and concessionaires have been successful. Many of the mapped collection trees occurred in agroforestry areas delineated by the concessionaire for the use of villagers; another concessionaire had suspended felling of Moabi trees in response to requests by the villagers. However, an extensive and expanding local logging sector on community forests and other lands outside of industrial timber concessions means that conflicts are arising even within villages or settlements, between individuals who seek to obtain either a one-time financial windfall from felling a tree (usually a male interest); or ensure ongoing periodic harvests of foods (typically a priority of women, but also of local Baka pygmies).

Since the 1970s, Community forestry (CF) initiatives have sought to combine sustainable forestry, community participation and poverty alleviation. Like other community-based forms of natural resource management (CBNRM), CF has been lauded for its potential to involve local people in conservation while opening new opportunities for economic development. However, CF programmes are not always successful, economically or ecologically, and, by devolving new powers and responsibilities to an abstractly defined "community," they risk exacerbating existing patterns of social exclusion, and creating new conflicts. In this paper we mobilise a relational concept of negotiation within a political ecology framework to explore how the power relations of CF are addressed and transformed in a region where issues of conflict and tenure security have long shaped the social forest. Specifically, we focus on the emergence and consolidation of ACOFOP [Asociacion de Comunidades Forestales de Peten], a Forest Based Association in the Maya Biosphere Reserve in the Peten region of Guatemala, where CF has been practised for 25 years. Emphasising the importance of longer histories of social movements and organisations to local capacities for CF, we explore the conditions of possibility that enabled ACOFOP to emerge, as well as the strategies it has adopted to make national regulatory frameworks work for local communities. Through qualitative analysis derived from participatory research, interviews and ethnographic data, we trace four key areas of ACOFOP's model of accompaniment (participatory decision-making: conflict resolution: advocacy and capacity-building) that have been developed in response to the negotiation of political issues pertaining to, and stemming from, the practice of CF. Highlighting ongoing challenges, and key strategies for CBNRM in other contexts, we conclude by emphasising that systems of community management cannot be "equitable," or indeed sustainable, if political issues of access and tenure are not kept central to questions of participation. Crown Copyright (C) 2019 Published by Elsevier Ltd. All rights reserved.

Honey gathering is one of the activities sustaining people's livelihoods in the Miombo woodlands of southern Africa. Current practices involve killing trees and can cause uncontrolled fires, affecting villages, animals and trees. This study aimed to understand honey gathering and production and its impacts on the Miombo woodland vegetation, in Lizongole village, Niassa National Reserve. Data was obtained through semi-structured interviews with 15 honey gatherers in one village and on 95 plots where all trees >= 10 cm, dbh (diameter at breast height), alive or dead, were identified at species level, and their dbh (cm) and heights (m) measured. Forty-seven percent of the respondents produced and managed beehives and 100% gathered wild honey. Bark beehives are preferentially made from Julbernardia globiflora ('Ntchenga') while wild honey is gathered from natural cavities in a diversity of tree species, typically by felling the tree. Both techniques are destructive and primarily target larger trees (average dbh of 26.1 +/- 1.2 cm for debarked trees and 30.4 +/- 2.4 cm for trees felled). Impacts on tree populations varied among the 12 species killed for honey, depending largely on their relative abundances. For nine species, felling and debarking were found to have reduced the number of larger trees by between 40% and 100% compared to previous densities. This is diminishing the nectar resource, the number of bee colonies, and the number of trees suitable for wild hives. However, honey can be gathered using non-destructive traditional practices based on tree climbing. Widespread adoption of such practices is needed to sustain honey production. (C) 2019 The Authors. Published by Elsevier B.V.

This study assessed the abundance of and access to tree species (Ozigo, Dacryodes buettneri; and Abam, Gambeya lacourtiana) that yield edible fruits to villagers and timber to the logging industry in and around a logging concession in Gabon. Participatory mapping combining GPS coordinates and interviews was carried out with 5 female and 5 male collectors in each of two villages within or adjacent to the logging concession. Precommercial and harvestable (> 70 cm dbh) Ozigo and Abam trees, as well as their stumps, were also quantified on 20 five ha plots in the 2012 cutting area of the concession and on 21 five ha plots on 10 km transects from each village. Distances to 59 Abam and 75 Ozigo from which fruits were collected ranged from 0.7 to 4.46 Km from the village centres. Most collections were by mixed groups made up of men, women and children (54%) at an average of 1.21 +/- 0.09 km; or by men and women (18%) at 2.21 +/- 0.15 km; or women and children (14%) at 4.03 +/- 0.22 km from the village. Almost 28% of all of the collection trees were inside the logging concession boundaries but outside the village agricultural zone, 43% were inside the village agricultural zone, and 29% were outside the logging concession. Only 33% of Ozigo collection trees had reached commercial size while 75% of Abam trees had. No stumps were found on any sample plots, probably reflecting the ban on felling Ozigo which was in effect at the time; and the relatively low commercial value of Abam. Densities of precommercial Ozigo trees in the cutting area were more than double their densities around the villages (236.0 +/- 20.3100 ha(-1) and 96.6 +/- 17.2100 ha(-1), respectively), while densities of harvestable Ozigo trees were 7 times higher in the cutting area than around villages (120 +/- 20.2100 ha(-1) and 17.1 +/- 3.4100 ha(-1) respectively). This probably reflects past and current anthropogenic pressures around the villages, including logging and land clearance for agricultural fields. Densities of precommercial Abam were almost four times higher around the village (22.3 +/- 5.6 and 6.0 +/- 2.9) than on the cutting area. Villagers did not record a decline in availability of or access to these fruits over the past 5 years, suggesting little or no immediate conflict between timber production and access to fruits from these trees. (C) 2018 Published by Elsevier B.V.

Sapelli (Entandrophragma cylindricum) and tali (Erythrophleum suaveolens) are among the most important timber species harvested from Congo Basin forests. They also host edible caterpillars, Imbrasia oyemensis and Cirina forda, respectively, which are important to the nutrition and income of rural and urban populations. This study evaluated the density of these tree species within a 10 km radius around each of 4 villages and in the 2012 annual cutting areas of two timber concessions in the region of Kisangani (DRC). Sapelli and tali trees >= 20 cm dbh and their stumps were identified and measured on 21 five ha plots around each village and 20 five ha plots on each concession. Around villages and on concessions, sapelli trees occurred at densities of 0.048 +/- 0.008 harvestable trees (>= 80 cm dbh) ha(-1) and 0.135 +/- 0.019 precommercial trees ha(-1). Harvestable tali trees (>= 60 cm dbh) were seven times more abundant at 0.347 +/- 0.032 ha-1, while pre commercial tali trees occurred at densities of 0.329 +/- 0.033 trees ha(-1). Between 25% and 40% of the harvestable sapelli trees had been logged as compared to < 3% of the harvestable tali trees. Production per tree, derived from another study, was extrapolated to estimate caterpillar yields on a half circle of 15,700 ha within 10 km of villages, using these estimates of tree densities. Depending on the village, yields were estimated as 11.6-34.5 Mg year(-1) of I. oyemensis from sapelli trees, and 65.8-80.9 Mg year(-1) of C. forda from tali trees, an average of 0.74-2.2 kg ha(-1) year and 4.2-5.2 kg ha(-1) year, fresh weight, respectively (0.23-0.68 kg ha(-1) year(-1) and 1.3-1.6 kg ha(-1) year(-1), dry weight, respectively). Harvestable trees yielded more caterpillars, providing most of the C. forda caterpillars. However, because harvestable sapelli trees occurred at low densities, the bulk of I. oyemensis caterpillar production would be hosted on precommercial trees. Logging practices that reject poorly formed or hollow trees and guidelines that call for high minimum diameter limits and retention of seed trees or prohibit logging on slopes or riparian zones, safeguard edible caterpillar production. Multiple resource management for multiple stakeholders would require more deliberate planning and management approaches based on negotiations with local communities and approaches like setting aside collection zones or collection trees that would be protected from logging.

Extensive areas of the Congo Basin forest are allocated to timber concessionaires. These forests also harbour and support village populations, including indigenous Baka people, who depend on forest foods obtained directly from trees (fruits, oils and caterpillars). Most food-producing tree species are harvested by concessionaires for timber. We documented the availability and abundance of three food tree species around four villages and in two neighboring timber concessions in Cameroon. Data was used to determine the importance of timber concessions as sources of food for local people to provide a foundation for governance arrangements that consider local needs for foods from timber trees. Discussions with concessionaires revealed that some of them have voluntarily refrained from extracting timber species of interest to villagers for their nontimber products. This is either to avoid conflict with villagers, or because regulations have been promulgated to safeguard these resources. The interplay between internal village dynamics, regulations and their implementation by forest guards, and the actions of timber concessions create a complex arena for addressing rights to forest resources. This paper provides information on the accessibility and availability of multiple use timber species as a foundation for negotiations and governance arrangements between concessionaires and local communities.

Many species of timber trees in Cameroon are exploited by logging companies for timber and by forest dependent communities for non-timber forest products (NTFPs). Quantitative analyses were conducted within and near forest concessions in Cameroon to determine the density of multiple use tree species that provide both timber for industry and foods consumed by local populations (fruit and oil or edible caterpillars), and how this has been affected by logging. Individuals of the three species (Moabi, Baillonella toxisperma; Sapelli, Entandrophragma cylindricum; and Tali, Erythrophleum suaveolens), including their stumps, were identified and measured on 5 ha (100 m x 500 m) sample plots around 4 villages and in 2 concessions. Around each village 21 sample plots, stratified by distance, were laid out along three transects extending 10 km towards the concession, each oriented 45 from the other. In concessions, 20 plots were established within the 2012 cutting unit after timber harvesting, using a stratified random system. Moabi trees occurred at the lowest densities: around villages, 22.8 +/- 3.3/100 ha of precommercial individuals and 5.0 +/- 1.4/100 ha of individuals of harvestable size (>= 80 cm dbh); on concessions, 7.5 +/- 2.4 precommercial trees/100 ha, and 0-2.0 +/- 1.4/100 ha harvestable individuals. Densities of Sapelli trees were not significantly different between villages and concessions, averaging 32.6 +/- 3.8/100 ha and 37.5 +/- 5.5/100 ha, respectively, for precommercial sizes and 9.5 +/- 2.2/100 ha and 6 +/- 1.6/100 ha, respectively, for harvestable trees (>= 100 cm dbh). Pre-commercial Tali trees occurred at lower densities (3.8 +/- 0.9/100 ha) around villages, as compared to 11.5 +/- 3.1/100 ha on concessions. Harvestable Tali trees (>= 60 cm dbh) occurred at the same densities around villages and on concessions (56.0 +/- 7.2/100 ha). Half, or more, of commercial-sized trees of caterpillar-hosting species were left standing after harvest on concessions (89-94% of Tali; 50-79% of Sapelli), reflecting constraints due to timber quality, market demand and inaccessibility. No harvestable Moabi trees were logged from the 2012 cutting areas, reflecting agreements between communities and concessionaires to leave them for fruit and oil, but densities were so low it will be important that villagers conserve those around their villages. Stumps of all three species were found around villages, revealing that mechanisms for negotiation are also needed among villagers with interests in either timber or non-timber resources obtained from the same tree species. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

AbstractObjectiveTo determine the contribution of forest foods to dietary intake and estimate their association with household food insecurity.DesignCross-sectional survey conducted among 279 households. Using a 7 d recall questionnaire, information on household food consumption was collected from women and used to determine the household dietary diversity score, food variety score and forest food consumption score (FFCS). Household Food Insecurity Access Scale (HFIAS) score was determined and Spearman rank correlation was used to establish the relationship between consumption of forest foods and HFIAS score. Women’s dietary intake was estimated from two 24 h recalls. The contribution of forest foods to women’s nutrient intakes was calculated and women’s nutrient intakes were compared with estimated average nutrient requirements.SettingRural forest-dependent households in twelve villages in eastern and southern Cameroon.SubjectsHousehold heads and their non-pregnant, non-lactating spouses.ResultsForty-seven unique forest foods were identified; of these, seventeen were consumed by 98 % of respondents over the course of one week and by 17 % of women during the two 24 h recall periods. Although forest foods contributed approximately half of women’s total daily energy intake, considerably greater contributions were made to vitamin A (93 %), Na (100 %), Fe (85 %), Zn (88 %) and Ca (89 %) intakes. Despite a highly biodiverse pool of foods, most households (83 %) suffered from high food insecurity based on the HFIAS. A significant inverse correlation was observed between the HFIAS score and the FFCS (r2=−0·169, P=0·0006), demonstrating that forest foods play an important role in ensuring food security in these forest-dependent communities.ConclusionsForest foods are widely consumed by forest-dependent communities. Given their rich nutrient content, they have potential to contribute to food and nutrition security.

Studies show that a number of forest foods consumed in Cameroon are highly nutritious and rich in health boosting bioactive compounds. This study assessed the knowledge and perceptions towards the nutritional and health promoting properties of forest foods among forest dependent communities. The relationship between knowledge, perceptions and socio-demographic attributes on consumption of forest foods was also determined. A total of 279 females in charge of decision making with respect to food preparation were randomly selected from 12 villages in southern and eastern Cameroon and interviewed using researcher administered questionnaires. Multivariate logistic regression analysis was used to identify the factors affecting consumption of forest foods. Baillonella toxisperma (98%) and Irvingia gabonesis (81%) were the most known nutrient rich forest foods by the respondents. About 31% of the respondents were aware of the nutritional value and health benefits of forest foods. About 10%–61% of the respondents expressed positive attitudes to questions related with health benefits of specific forest foods. Consumption of forest foods was found to be higher among polygamous families and also positively related to length of stay in the forest area and age of respondent with consumption of forest foods. Education had an inverse relationship with use of forest foods. Knowledge and positive attitude towards the nutritional value of forest foods were also found to positively influence consumption of forest foods. Since knowledge was found to influence attitude and consumption, there is need to invest in awareness campaigns to strengthen the current knowledge levels among the study population. This should positively influence the attitudes and perceptions towards increased consumption of forest foods.

Mozambique’s Niassa Reserve contains Africa’s best preserved miombo woodlands. Half of the households there gather wild honey from natural hives for consumption and income. However, most collectors used destructive techniques: setting fire to the grasses under the hive tree to create smoke and then felling the tree. Cutting trees to obtain honey was the principal source of tree mortality. Trees grow very slowly, about 0.25 cm diameter [dbh]/yr, meaning an average hive tree was nearly 200 years old. Furthermore, of the trees > 20 cm dbh of species important for nectar and hives, only about 15% had cavities. Although fire is intrinsic to miombo woodlands, the increased frequency resulting from anthropogenic sources impedes regeneration of some tree species as well as affecting bees, other wildlife and villages. A few people in the reserve had learned from earlier generations how to gather honey in a nondestructive way, using certain plant species to keep bees from stinging and climbing the trees using ropes to take the honeycombs out of the hives. Traditional practices included leaving the larval combs behind so the colony continued to grow. Previously, the older men who had this knowledge had not been willing to share it with younger men. The project arranged for one of the traditional honey hunters to participate in an international conference on honey collection with other indigenous collectors from around the world. This helped him recognize the value of his knowledge. The project team then arranged for him to demonstrate these traditional techniques to groups of honey hunters in nine communities within the Reserve. A year later, monitoring revealed that many collectors had adopted these nondestructive techniques. They found them less time consuming, and appreciated that they allowed collectors to return to the same trees repeatedly to obtain honey. Sharing traditional knowledge made honey hunting compatible with the conservation of miombo woodlands.