Papers by Lars Peter Kvist
Journal of Natural Products, Oct 22, 2002
As a part of a study on new antiplasmodial natural products, a new 8-5&am... more As a part of a study on new antiplasmodial natural products, a new 8-5' linked lignan dehydrodiconiferyl dibenzoate (2) and p-hydroxybenzoic acid (1) were isolated from the roots of the palm Euterpe precatoria. In contrast to compound 1, compound 2 showed a moderate antiplasmodial activity.
Biochemical Systematics and Ecology, Sep 1, 1986
The dihydric phenolics from the leaves of 590 specimens of 91 genera of Gesneriaceae have been ex... more The dihydric phenolics from the leaves of 590 specimens of 91 genera of Gesneriaceae have been examined as semiquinone radicals by EPR spectroscopy. The glycosides acteoside and/or conandroside were found widespread in the family, but were not observed in the tribes Klugieae and Napeantheae and in the genera Agalmyla and Sain~oaulia. The absence of the glycosides in several specimens seemed compensated for by the presence of either protocatechuic acid or an ester of homogentisic acid. Actually, the ester was found to be ubiquitous in Agalmyla, but absent in the related Aeschynanthus. A dihydrocaffeic acid ester was found restricted to the European gesneriads, distinguishing them from similar Asian genera. Chlorogenic acid was not observed in the family, at variance with older reports. Hydroquinone was recorded from three specimens.
Commonwealth forestry review, 1995
Use-values have been advocated as a tool to compare the value of not just individual species, but... more Use-values have been advocated as a tool to compare the value of not just individual species, but also of plant families and forest types to local people, in order, for example, to identify species or habitats in need of special management or conservation. We estimated use-values in three forest types (upper restinga, lower restinga, tahuampa) on the Amazon flood plain south of Iquitos (Peru), compared two methodologies, identified the most valuable species and contrasted these valuations with the actual use of forest resources in local villages. A new method for estimating use-values was contrasted with the method of Phillips and Gentry (1993a). Despite philosophical and procedural differences, estimates were highly correlated (R 2 =0.86). We discuss limitations of both methods and suggest some possible enhancements. The need to discriminate between past, present and potential uses is emphasised.
Folia amazónica, Jul 5, 2016
En la llanura aluvial del Perú, adyacentes al río Ucayali, fueron muestreados tres tipos de bosqu... more En la llanura aluvial del Perú, adyacentes al río Ucayali, fueron muestreados tres tipos de bosques, usando 9 parcelas permanentes de 1 ha, identificándose y midiéndose los árboles con tallos mayores a 10 cm DAP. Estas parcelas han sido medidas 4 veces, entre 1993-1997, y proporcionan las bases para los resultados reportados aquí. Tres parcelas fueron establecidas en cada uno de los tres tipos de bosque: restinga alta, restinga baja y tahuampa, caracterizada en parte por una inundación anual de 1, 2 y 4 meses por año, respectivamente. La densidad de los tallos varía desde 446 a 601 por ha y los rangos de área basal entre 20-29 m 2 /ha. Un total de 321 especies fueron registradas en las 9 ha de muestra, con 88-141 especies en cada una de las parcelas. La composición de las especies indica similaridad relativamente baja entre los tipos de bosque. Las parcelas con inundaciones más prolongadas son las que contienen más especies, expresadas ambas tanto por unidad de área como por 1 000 tallos. Los bosques de llanura aluvial contienen menor cantidad de especies arbóreas que los bosques de tierra firme no inundables. Valores de importancia de las familias son calculados para cada bosque. En los tres tipos de bosques las Leguminosae, Euphorbiaceae, Anonaceae y Lauraceae son importantes. La familia Moraceae es conspícua en restinga alta y baja. Las Arecaceae y Meliaceae son notables en restinga alta como lo es la Rubiaceae en restinga baja. Lecythidaceae,
Folia amazónica, Jul 1, 2006
Esto corresponde a los que informaron sobre todo tipo de plantas para medicina, pero si miramos s... more Esto corresponde a los que informaron sobre todo tipo de plantas para medicina, pero si miramos solamente a las plantas para control de fertilidad y natalidad más del 75% provienen de los alrededores de los caseríos. 3) El conocimiento de hombres y mujeres es relativamente uniforme, probablemente a causa de tratamientos combinando el uso de hierbas cultivadas (más conocidas por mujeres) y árboles del bosque (más conocidos por hombres). De las hierbas cultivadas se usaron mayormente las hojas y de los árboles del bosque corteza, látex y res ma.
Forest Ecology and Management home page available at www.elsevier.com/locate/foreco Publisher&apo... more Forest Ecology and Management home page available at www.elsevier.com/locate/foreco Publisher's version of article available at
Instituto de Investigaciones de la Amazonia Peruana See next page for additional authors ePublica... more Instituto de Investigaciones de la Amazonia Peruana See next page for additional authors ePublications@SCU is an electronic repository administered by Southern Cross University Library. Its goal is to capture and preserve the intellectual output of Southern Cross University authors and researchers, and to increase visibility and impact through open access to researchers around the world. For further information please contact
Ciencia en Desarrollo, 2016
ResumenEn el presente estudio se analizó la estructura y composición de la vegetación en fragment... more ResumenEn el presente estudio se analizó la estructura y composición de la vegetación en fragmentos de bosque seco tropical en la Reserva Natural Sanguaré (San Onofre, Sucre-Colombia), estableciendo la riqueza de plantas y ciertos parámetros estructurales para medir la organización y dinámica del bosque. En cada fragmento de bosque se hicieron levantamientos de vegetación con base en los transectos tipo RAP modificados. Con base en las identificaciones, conteos de especies y datos sobre estructura como la altura y el DAP, para establecer las familias, géneros y especies más importantes, los hábitos de crecimiento y perfil de vegetación. Dentro de los resultados se encontraron 658 individuos, agrupados en 37 familias, 81 géneros y 82 especies. Los grupos taxonómicos más importantes fueron Fabaceae con 23 especies, seguida de Malvaceae (Bombacoideae), Arecaceae y Rubiaceae. En el habito de crecimiento, los arboles fueron dominantes y el palmetum tuvo una alta representación, como un d...
Forest Ecology and Management home page available at www.elsevier.com/locate/foreco Publisher&apo... more Forest Ecology and Management home page available at www.elsevier.com/locate/foreco Publisher's version of article available at
Instituto de Investigaciones de la Amazonia Peruana See next page for additional authors ePublica... more Instituto de Investigaciones de la Amazonia Peruana See next page for additional authors ePublications@SCU is an electronic repository administered by Southern Cross University Library. Its goal is to capture and preserve the intellectual output of Southern Cross University authors and researchers, and to increase visibility and impact through open access to researchers around the world. For further information please contact
Forest Ecology and Management, 2001
Three Peruvian flood plain forests adjacent to the Ucayali river were sampled using nine 1 ha per... more Three Peruvian flood plain forests adjacent to the Ucayali river were sampled using nine 1 ha permanent sample plots in which stems exceeding 10 cm DBH were identified and measured. These plots were measured four times during 1993-1997. Three plots were established in each of the three forest types high restinga, low restinga, and tahuampa, characterised in part by an annual inundation of one, two and four months per year, respectively. Stem density varied from 446 to 601 per hectare, and the basal area ranged between 20 and 29 m 2 /ha. A total of 321 species were recorded in the nine hectare sample, with 88-141 species in each 1 ha plot. Species composition indicated a relatively low similarity between the forest types. Plots with the longest flooding contained the most species, expressed both as per unit area as well as per 1000 stems. The flood plain forests contained fewer tree species than adjacent non-flooded terra firme forest. Family importance values were calculated for each forest. In all three forests Leguminosae, Euphorbiaceae, Annonaceae and Lauraceae were important. The Moraceae family was conspicuous in both high restinga and low restinga. The Arecaceae and Meliaceae were notable in high restinga, as was Rubiaceae in low restinga. Lecythidaceae, Sapotaceae and Chrysobalanaceae exhibited relatively high values in the tahuampa forest. High species importance values were obtained for Maquira coriacea, Guarea macrophylla, Terminalia oblonga, Spondias mombin, Ceiba pentandra, Hura crepitans, Eschweilera spp., Canipsiandra angustifolia, Pouteria spp., Licania micrantha, Parinari excelsa and Calycophyllum spruceanum. Among the species of smaller stature, Drypetes amazonica, Leonia glycicarpa, Theobroma cacao and Protium nodulosum attained high values.
Biodiversity and Conservation, 2009
The biodiversity hotspot of the Equatorial Pacific region in western Ecuador and northwestern Per... more The biodiversity hotspot of the Equatorial Pacific region in western Ecuador and northwestern Peru comprises the most extensive seasonally dry forest formations west of the Andes. Based on a recently assembled checklist of the woody plants occurring in this region, we analysed their geographical and altitudinal distribution patterns. The montane seasonally dry forest region (at an altitude between 1,000 and 1,100 m, and the smallest in terms of area) was outstanding in terms of total species richness and number of endemics. The extensive seasonally dry forest formations in the Ecuadorean and Peruvian lowlands and hills (i.e., forests below 500 m altitude) were comparatively much more species poor. It is remarkable though, that there were so many fewer collections in the Peruvian departments and Ecuadorean provinces with substantial mountainous areas, such as Cajamarca and Loja, respectively, indicating that these places have a potentially higher number of species. We estimate that some form of protected area (at country, state or private level) is currently conserving only 5% of the approximately 55,000 km 2 of remaining SDF in the region, and many of these areas protect vegetation at altitudes below 500 m altitude. In contrast, the more diverse seasonally dry forests in mountainous areas remain little protected.
In the tropical region and along Andean ecosystems, the regional development of megadiverse count... more In the tropical region and along Andean ecosystems, the regional development of megadiverse countries is based on a still poorly known biological diversity and its natural resources. Efforts applied for enhancing the current knowledge of plant native species’ uses and harvest are mainly carried out by a small group of dedicated scientists. An obstacle for access to data on this high plant diversity is insufficient systematization of data in the region. The project “Biodiversity of economically important species in the tropical Andes (BEISA)” funded by DANIDA attempts to train young botanists. Based on a scientific cooperation between Bolivia, Ecuador and Denmark we will study plant species and communities in order to document their economic, cultural and biological values in the Andean forests for sustainable management of their resources, and for the improvement of human life and the conservation of biological resources. The project combines research and fieldwork as well as academic opportunities of postgraduate programs for M.Sc. and Ph.D. that will be held at the University of Aarhus (Denmark). A computerized data net will enhance the current institutional conditions of the project partners and consolidate data exchange. The BEISA project seeks to establish contact with other institutions, projects and initiatives under our main goals for research and training.
Novon, 1997
... Finally, to prevent new combinations from being recorded incorrectly, we should note here tha... more ... Finally, to prevent new combinations from being recorded incorrectly, we should note here that the following two combinations that appear as new (Wiehler, 1995a, b) had been published previously: Corytoplectus pulcher (NE Brown) Wiehler, Ges-neriana 1: 37. 1995 [as comb. ...
Biodiversity and Conservation, 1997
The tuberous legume Pachyrhizus tuberosus is found in cultivation sporadically throughout the tro... more The tuberous legume Pachyrhizus tuberosus is found in cultivation sporadically throughout the tropical lowlands of South America. As a result of field studies conducted in Bolivia, Ecuador, Peru and Venezuela, three distinct cultivar groups have been identified. Rare references presenting further evidence in support of this grouping, and yielding information on the cultivation history, are reviewed. The differences in morphology,
Perspectives in Plant Ecology, Evolution and Systematics, 2002
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Papers by Lars Peter Kvist