Dacryodes excelsa

Dacryodes excelsa
Name	Dacryodes excelsa
Regnum	Plantae
Divisio	Magnoliophyta
Classis	Magnoliopsida
Ordo	Sapindales
Familia	Burseraceae
Genus	Dacryodes
Species	D. excelsa
Binomial	Dacryodes excelsa

Dacryodes excelsa is a large canopy tree native to the Caribbean that attains emergent stature in mature forests. It is notable for its ecological role in tropical montane and lowland ecosystems and for traditional uses by indigenous and colonial-era communities. Scientific study of the species intersects with botanical institutions, conservation organizations, and regional forestry agencies.

Taxonomy and Nomenclature

The species has been treated within the family Burseraceae by taxonomists at institutions such as the Royal Botanic Gardens, Kew, the New York Botanical Garden, the Smithsonian Institution, the Field Museum, and the Missouri Botanical Garden. Early botanical authors associated with Caribbean flora include Carl Linnaeus, Alexander von Humboldt, Aimé Bonpland, and Joseph Dalton Hooker, while later revisions involved researchers linked to the United States Department of Agriculture, the National Museum of Natural History, the University of Puerto Rico, and the University of the West Indies. Nomenclatural decisions reference type specimens catalogued in herbaria like the Herbarium Berolinense, the Harvard University Herbaria, the Muséum national d'Histoire naturelle, and the Royal Botanic Garden Edinburgh. Regional checklists and floras published by the Caribbean Plant Specialist Group, the International Union for Conservation of Nature, the Botanical Research Institute of Texas, the Caribbean Agricultural Research and Development Institute, and botanical monographs often cross-reference names recognized by the International Plant Names Index, Tropicos, and the Global Biodiversity Information Facility.

Description

Mature individuals develop tall, straight boles and broad crowns typical of emergent canopy trees documented in field guides from institutions such as the British Museum (Natural History), the Arnold Arboretum, the National Tropical Botanical Garden, the Kew Bulletin, and the Flora of the West Indies. Morphological descriptions appear in treatments by botanists affiliated with Cornell University, Yale University, Columbia University, and the University of California. Wood characteristics have been examined in studies linked to the United States Forest Service, the Food and Agriculture Organization, and regional forestry services like the Puerto Rico Department of Natural and Environmental Resources. Illustrations and herbarium sheets are curated by the New York Botanical Garden, the Smithsonian, and the Museu Nacional, providing comparative material used by researchers from the Royal Society, the Linnean Society, and botanical journals such as Taxon and Systematic Botany.

Distribution and Habitat

The tree's range is recorded in floristic surveys conducted on islands where fieldwork involved teams from the University of Puerto Rico, the University of the West Indies, the Caribbean Conservation Association, the Puerto Rico Conservation Trust, the United Nations Environment Programme, and local ministries. Distributional records appear in atlases produced by the Botanical Research Institute of Texas, the Caribbean Biodiversity Hub, and databases maintained by the Global Biodiversity Information Facility and the Smithsonian Tropical Research Institute. Habitats documented include montane cloud forests, lowland wet forests, and protected areas such as El Yunque National Forest, the Luquillo Mountains, the Mona Island Reserve, and other reserves managed by national park services and conservation NGOs including Conservation International, The Nature Conservancy, World Wildlife Fund, and local conservation organizations.

Ecology and Life History

Ecological studies involve collaborations among researchers from Harvard Forest, the Institute of Tropical Forestry, the Smithsonian Tropical Research Institute, Yale School of Forestry, and the University of Florida. Phenology, seed dispersal, and recruitment have been studied alongside fauna such as fruit-eating birds and mammals recorded by ornithological groups like the American Ornithological Society, birdwatching societies, and mammalogists at the American Society of Mammalogists. Pollination and mycorrhizal associations have attracted attention from ecologists publishing in journals like Ecology, Journal of Tropical Ecology, and Biological Conservation, with contributions from researchers affiliated with Duke University, Princeton University, McGill University, and the University of British Columbia. Long-term monitoring plots associated with networks such as the Forest Global Earth Observatory and local research stations document growth rates, carbon storage, and responses to hurricanes studied by climatologists and agencies including the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration.

Uses and Cultural Significance

Traditional and contemporary uses have been reported by ethnobotanists from the Smithsonian Institution, the New York Botanical Garden, the University of the West Indies, and the Pontifical Catholic University of Puerto Rico. Local communities, indigenous groups, and municipal governments have used the tree for timber, non-timber forest products, and cultural practices described in publications by UNESCO, the Organization of American States, and regional cultural institutes. Forestry and agroforestry projects involving the Food and Agriculture Organization, regional extension services, and development agencies have evaluated the species for sustainable use, while museums, botanical gardens, and cultural heritage organizations have featured it in outreach and education initiatives.

Conservation Status and Threats

Conservation assessments have been prepared by experts contributing to the IUCN Red List, regional Red Lists, national environmental agencies, and conservation NGOs including The Nature Conservancy, Conservation International, and local trusts. Threats documented by environmental scientists and policy analysts at institutions such as the Environmental Protection Agency, the Intergovernmental Panel on Climate Change, and regional ministries include habitat loss, invasive species, altered disturbance regimes, and climate change impacts studied in journals like Global Change Biology and Conservation Biology. Protected area management, restoration programs, and ex situ conservation efforts involve botanic gardens, seed banks, universities, and international collaborations with organizations like Botanic Gardens Conservation International and the Millennium Seed Bank.

Category:Burseraceae