Six years of fruit production by mahogany trees (Swietenia macrophylla King): patterns of variation and implications for sustainability

Snook, L.K.; Cámara‐Cabrales, Luisa; Kelty, Matthew J.

doi:10.1016/j.foreco.2004.11.003

Cited by 76 publications

(74 citation statements)

References 32 publications

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“…Thus, the visible changes in forest structure and composition observed after 12 years of exclusion in the E site by Gomez-valencia (2006) were only beginning to be perceptible in the seed rain, mainly because many trees in this site were saplings and presented small diameters with no fully developed reproductive potential. Is well-known that trees with small diameters produce less fruits than trees with large diameters (Kelly 1994, Snook et al 2004. The strong seasonality of seed rain (96% of seeds fell in the dry season) in both E and WE sites coincided with the results reported by Bullock and Solís-Magallanes (1990) for the tropical deciduous forest of Chamela, Mexico.…”

Section: Discussionsupporting

confidence: 84%

Seed rain dynamics following disturbance exclusion in a secondary tropical dry forest in Morelos, Mexico

Ceccon

Hernández

2013

RBT

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Abstract:In most of the legally protected areas in Mexico local inhabitants use natural resources, such as fire wood or cattle grazing. These frequent but low-intensity disturbances have consequences at various levels of the tropical ecosystems and strongly impact forest structure and its regeneration capacity. Despite their importance, the effects of these perturbations in many aspects of tropical forest ecology and in the forest's capacity to recover after disturbance exclusion remain poorly understood. Understanding the impact of these processes on tropical forests is necessary for rehabilitating these forests and enhancing their productivity. In this study, we evaluate the impact of twelve years of exclusion (E) of cattle grazing and fire wood extraction in the composition and dynamics of seed rain, and compare this assessment to a similar analysis in an area where these perturbations continued (without exclusion, WE). We found a strong seasonality in seed rain (96% of seeds fell in the dry season) in both areas. There were no significant differences between E and WE sites in relation to overall seed density, species richness and diversity. However, the distribution along the year of seed species density was significantly different among the E and WE sites. The Jaccard's similarity index between E and WE sites was relatively low (0.57). Barochory was the most common dispersal mode observed among the 23 species in terms of seed species density (48%), followed by anemochory (39%) and zoochory (13%). In relation to seed density, anemochory was the most frequent dispersal mode (88%). Most species in the zone were categorized as small seeds (92%), and there were no significant differences in the distribution of seed size between E and WE. The spatial pattern of dispersal of the four species with the highest relative importance value index, in both areas, was aggregated. Twelve years of disturbance exclusion were not enough to fully restore the seed rain of the area; some differences were already perceptible after this lapse. On the other hand, zoochorous species were almost absent from both sites. The re-introduction of climax and animal-dispersed species may be, in addition to perturbation exclusion, a viable strategy to accelerate ecological restoration in this area. Rev. Biol. Trop. 57 (1-2): 257-269. Epub 2009 June 30.

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Section: Discussionsupporting

confidence: 84%

Seed rain dynamics following disturbance exclusion in a secondary tropical dry forest in Morelos, Mexico

Ceccon

Hernández

2013

RBT

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“…In other systems larger trees in general have also been shown to produce higher number of seeds compared to the trees of smaller sizes (e.g., [23] [24] [25]). These larger trees are expected to generate higher quantities of monthly seed fall in the forest stands.…”

Section: Quantities Of Fallen Seed By Habitat and Tscsmentioning

confidence: 99%

Attributes of Naturally Fallen (Rained) <i>Melaleuca quinquenervia</i> Seeds in Two Habitat Types of South Florida Wetlands

Rayamajhi¹,

Pratt²,

Tipping³

et al. 2017

AJPS

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Melaleuca quinquenervia is an Australian tree that has successfully invaded many habitats in Florida. It maintains an aerial seed bank in serotinous capsular fruits held in the tree canopies. These fruits open gradually and shed seeds that fall (rain) throughout the year. Comparative attributes (quantities and qualities) of these fallen seeds from different habitats and tree size categories are unknown. We documented these attributes of fallen M. quinquenervia ), and viability (5.6%) and germinability (5.3%) of melaleuca seeds in the permanently inundated habitat. Although relatively more seeds rained from larger trees, higher quality seeds were rained from the trees of smaller dimensions. Smaller trees typically inhabit at the edges of melaleuca stands and hence they may increase the potential for further spread of seeds into the adjacent areas.

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“…Forest structure consists of three to four shrub and tree layers that range from 3 to 25 m in height [47,48], and there are around 100 tree species per hectare, of which about 75% are evergreen and the rest deciduous [47,48]. Common tree species include Brosimum alicastrum, Manilkara zapota, Talisia olivaeformis, Bursera simaruba, Lonchocarpus longistylus, Nectandra salicifolia, Psidium sartorium, Guettarda combsii, Vitex gaumeri, Caesalpinia gaumeri and Lysiloma bahamensis [44,48], and Hemotoxylon campechianum and Metopium brownei in flooded lowland forests, although both upland and lowland forests share many of the same species [41,49].…”

Section: Biophysical Conditionsmentioning

confidence: 99%

Endurance and Adaptation of Community Forest Management in Quintana Roo, Mexico

Ellis

Kainer

Sierra-Huelsz

et al. 2015

Forests

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Despite regional deforestation threats, the state of Quintana Roo has maintained over 80% of its territory in forests. Community forest management (CFM) has played a pivotal role in forest cover and biodiversity conservation in the region. In this article, we present the institutional, socioeconomic and environmental conditions under which community-based forest management has been consolidated in the tropical state of Quintana Roo, which occupies the eastern half of Mexico's Yucatan Peninsula. With a focus on management for timber and other market-based development strategies, we then examine the institutional and socioeconomic factors, as well as biophysical shocks, that have constrained community forestry development in the past 25 years, challenging its persistence. Following, we discuss how forest communities and institutions have responded and adapted to changing forest policies and markets as well as major environmental shocks from hurricanes and fires. CFM in Quintana Roo has shown resiliency since its institutionalization 30 years ago. Future challenges and opportunities include biodiversity conservation, carbon management through Reducing Emissions from Deforestation and Forest Degradation 4296(REDD+) initiatives, market strengthening, business management training as well as the implementation of alternative silvicultural systems, particularly to manage sustainable populations of commercial timber species.

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Six years of fruit production by mahogany trees (Swietenia macrophylla King): patterns of variation and implications for sustainability

Cited by 76 publications

References 32 publications

Seed rain dynamics following disturbance exclusion in a secondary tropical dry forest in Morelos, Mexico

Seed rain dynamics following disturbance exclusion in a secondary tropical dry forest in Morelos, Mexico

Attributes of Naturally Fallen (Rained) <i>Melaleuca quinquenervia</i> Seeds in Two Habitat Types of South Florida Wetlands

Endurance and Adaptation of Community Forest Management in Quintana Roo, Mexico

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Six years of fruit production by mahogany trees (Swietenia macrophylla King): patterns of variation and implications for sustainability

Cited by 76 publications

References 32 publications

Seed rain dynamics following disturbance exclusion in a secondary tropical dry forest in Morelos, Mexico

Seed rain dynamics following disturbance exclusion in a secondary tropical dry forest in Morelos, Mexico

Attributes of Naturally Fallen (Rained) &lt;i&gt;Melaleuca quinquenervia&lt;/i&gt; Seeds in Two Habitat Types of South Florida Wetlands

Endurance and Adaptation of Community Forest Management in Quintana Roo, Mexico

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Attributes of Naturally Fallen (Rained) <i>Melaleuca quinquenervia</i> Seeds in Two Habitat Types of South Florida Wetlands