Danna J Leaman

Danna J Leaman
Canadian Museum of Nature / Musée canadien de la nature

PhD

About

50
Publications
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1,789
Citations

Publications

Publications (50)
Book
Full-text available
Un proceso de nueve pasos para apoyar a las Autoridades Científicas CITES en la formulación de dictámenes de extracción no perjudicial (DENP), basados en información científica, para las especies incluidas en el Apéndice II de CITES Version 3.0 2016
Book
Full-text available
The genus Trillium is made up of about 50 species worldwide with concentrations in eastern and western North America and eastern Asia. The diversity of Trillium in North America warrants special recognition because both the Pacific Northwest and the eastern half of the United States are centers of endemism for the genus1. Identifying the conservati...
Article
Full-text available
The commercial demand for Nardostachys jatamansi in the global market has raised concern about its long-term sustainability. The genus Nardostachys is represented by the single species (Nardostachys jatamansi) endemic to the Himalayas. This study reviews biology, uses, threats, knowledge gaps, and conservation concerns, and offers suggestions for i...
Chapter
Approximately 2000 species of medicinal and aromatic plants are native to North America. The conservation status of these species is currently being assessed and updated by the IUCN Medicinal Plant Specialist Group and NatureServe, in partnership with the Albuquerque BioPark. Conservation status assessments will contribute to the IUCN Plants for Pe...
Book
Full-text available
Kew’s State of the World’s Plants and Fungi project provides assessments of our current knowledge of the diversity of plants and fungi on Earth, the global threats that they face, and the policies to safeguard them. Produced in conjunction with an international scientific symposium, Kew’s State of the World’s Plants and Fungi sets an important inte...
Poster
The objective of the current study was to provide a preliminary assessment on the conservation status of Canadian medicinal plants in order to help guide future efforts to protect biocultural diversity in Canada. Using data provided from the Native American Ethnobotany Database (http://naeb.brit.org/), United States Department of Agriculture (https...
Poster
The International Union for the Conservation of Nature (IUCN) Red List of threatened species is a global inventory of the conservation status of biological species. IUCN's Species Information Service database enables application of standardized criteria and thresholds to available species data to evaluate the risk of extinction. The IUCN Red List h...
Chapter
All human societies use plants as medicines. Many important medicines are derived from plants with a long history of traditional use, and new medicinal applications for plants as medicines continue to be discovered. Plants with known medicinal uses and properties occur in most habitats to which people have access. Most medicinal plants are wild-har...
Chapter
All human societies use plants as medicines. Many important medicines are derived from plants with a long history of traditional use, and new medicinal applications for plants as medicines continue to be discovered. Plants with known medicinal uses and properties occur in most habitats to which people have access. Most medicinal plants are wild-har...
Book
Full-text available
Ten papers evaluate how well voluntary certification standards (VCS) protect biodiversity and associated human livelihoods. The reviews and case studies document positive (or negative) impacts of certification in a wide range of habitats, providing evidence for lessons learned and recommendations. This discussion opportunity for policy makers, NGOs...
Research
Full-text available
Review of: Shifting Cultivation and Environmental Change. Indigenous People, Agriculture and Forest Conservation. Cairns, Malcolm F., ed. 2015. Earthscan, Routledge, Abingdon, UK and New York, NY. xxvi + 1032 pp. (paperback). USD 67.95. ISBN 978-0-415-74605-2. (Also available as an eBook.)
Chapter
Full-text available
All human societies use plants as medicines. Many important medicines are derived from plants with a long history of traditional use, and new medicinal applications for plants as medicines continue to be discovered. Plants with known medicinal uses and properties occur in most habitats to which people have access. Most medicinal plants are wild-har...
Book
Full-text available
Avis de commerce non préjudiciable de la Convention sur le commerce international des espèces de faune et de flore sauvages menacées d'extinction (CITES) Guide pour les plantes pérennes Un processus en neuf étapes pour appuyer les autorités scientifiques de la CITES qui émettent des avis de commerce non préjudiciable (ACNP) fondés sur la science po...
Research
Full-text available
Call for Abstracts - IUCN Policy Matters (Issue 21): Certification and Biodiversity - How Voluntary Certification Standards impact biodiversity and human livelihoods.
Chapter
Full-text available
The contribution of biodiversity and ecosystem services to our health care needs is significant, both for the development of modern pharmaceuticals and for their uses in traditional medicine. Long before the rise of pharmaceutical development, societies have been drawing on their traditional knowledge, skills and customary practices, using various...
Chapter
Plant diversity is critical to addressing food, nutrition security and medicinal needs of people. It is recognized that the diversity of such economically useful plants is the result of the years of selection in terms of crop varieties and local landraces. Wild and cultivated plant diversity is an important component of the arsenal to improve nutri...
Article
Full-text available
This Guidance, designed to build on previous milestones, describes a nine-step process enabling Scientific Authorities to make NDFs that are science-based, using information with data quality appropriate to the severity of conservation concerns, intrinsic biological risks, harvest impacts, and trade impacts identified for the species concerned.
Article
Full-text available
This is a review of a document that is available elsewhere on-line.
Article
Full-text available
Biodiversity indicators used by policy-makers are underdeveloped and underinvested.
Article
Full-text available
Between 40,000 and 50,000 plant species are used in traditional and modern medicine systems throughout the world. Uncounted additional species are used in the growing cosmetics and botanicals industries. The great majority of these species are collected from wild resources. Notwithstanding growing interest in cultivation, wild collection is likely...
Article
Terpenes isolated from tropical species of the Rutales were tested for insect antifeedant activity against rice weevil, Sitophilus oryzae (L.) using a flour disk bioassay that requires only small amounts of compounds (0, 0.05, 0.25 and 0.50% w/w). At 0.50% (w/w) five compounds isolated from Lansium domesticum (iso-onoceratriene, 3-keto-22-hydroxyon...
Article
Full-text available
With the increased realization that many wild medicinal and aromatic plant (MAP) species are being over-exploited, a number of agencies are recommending that wild species be brought into cultivation systems. Others argue sustainable harvest to be the most important conservation strategy for most wild-harvested species, given their contributions to...
Article
Full-text available
Correct citation: Leaman, D.J. (2006). Sustainable wild collection of medicinal and aromatic plants: development of an international standard. R.J. Bogers, L.E. Craker, & D. Lange (Eds.), Medicinal and Aromatic Plants: Agricultural, Commercial, Ecological, Legal, Pharmacological and Social Aspects. Frontis (17): 97-107. Netherlands: Springer. ISBN:...
Article
Full-text available
The relationship between in situ and ex situ conservation of species has implications for local communities, public and private land owners, entire industries and, of course, wild species. Identifying the conservation benefits and costs of the different production systems for medicinal and aromatic plants (MAP) should help guide policies as to whet...
Article
Extracts from 11 plant species belonging to the Zingiberaceae were tested for antifungal activity using disc diffusion bioassays. Extracts from several members, especially Alpinia galanga, Curcuma zedoaria and Zingiber purpureum, were found to have pronounced inhibitory activities against a wide variety of human pathogenic fungi, including strains...
Article
Full-text available
A quantitative ethnobotanical approach to antimalarial drug discovery led to the identification of Lansium domesticum Corr. Ser. (Meliaceae) as an important antimalarial used by Kenyah Dyak healers in Indonesian Borneo. Triterpenoid lansiolides with antimalarial activity were isolated from the bark and shown to have activity in both in vitro bioass...
Article
Full-text available
Medicinal and aromatic plants represent a consistent part of the natural biodiversity endowment of many countries around the world. These species provide an important contribution to health, local economies, cultural integrity and ultimately the well-being of people, particularly the rural poor and fragile social group, e.g., the elderly, children...
Chapter
Two and a half millennia ago, the roots of a plant known as Silphion produced perfume and spices; the juice treated gynaecological and many other ailments. Silphion was so important to the local economy of Cyrene, now Libya, that its image was minted on coins. Today, we no longer benefit from the use of this plant, nor do we know its Latin name (ex...
Thesis
Full-text available
The hypothesis that plant materials are selected and valued for use in traditional remedies based on their biological activity was examined in the context of the health, culture, and environment of the Kenyah people of the Apo Kayan Plateau, East Kalimantan, Indonesian Borneo. In an ethnobotanical survey conducted in three Kenyah villages in the Ap...
Article
Traditional remedies have been a source of important antimalarial drugs and continue to provide novel and effective treatments, both where pharmaceuticals are not available and where the disease is increasingly resistant to commonly prescribed drugs. The Kenyah of the Apo Kayan, a remote forested plateau in Indonesian Borneo, use 17 malaria remedie...

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Projects

Projects (7)
Project
To secure local incomes and healthcare, threatened by declining biodiversity and natural resource access, linked to overharvest of medicinal species in Nepal’s high Himalayas. It scales up a market-based model for sustainable, equitable trade across high-priority plant species and districts while driving the integration of non-timber forest products (NTFPs) into Community Forestry nationally. Locally-led activities include participatory inventories of NTFPs; training >5,000 harvesters/processors; enhancing Community Forest management and trade; and policy engagement to incentivise sustainable local biodiversity management.
Project
Conserving the world’s most important trees, crop wild relatives, and medicinal plants Plants for People (P4P) is a major new initiative to assess the threat status (using the IUCN Red List Categories and Criteria) of at least 1,500 highest priority species in each of the following groups: crop wild relatives; medicinal plants; timber trees; and palms (6,000 in total). This is a joint project of the Global Species Programme (GSP) and the Species Survival Commission (SSC), involving the four relevant SSC Specialist Groups (Crop Wild Relatives, Medicinal Plants, Global Trees and Palms). The P4P initiative will also collaborate with national, regional, and international specialist organizations working on economically valuable plants. This information collected will be used to refine criteria for determining sites of significance for useful wild plants species. Such information will form the basis of conservation strategies ‘on the ground’ including work to ensure the inclusion of significant sites in protected areas and appropriate ex situ strategies. In parallel a policy-influencing strategy will developed for appropriate policy fora (notably the Convention on Biological Diversity) to raise awareness amongst governments, NGOs and other relevant institutions. https://www.iucn.org/theme/species/our-work/plants/plants-people