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The study of plant communities requires a basic understanding of the abundance, distribution, and number of species present. Yet, in obtaining this information, scientists can rarely sample the entire community or area of interest. In practice, data from numerous small sub-samples provide a basis...


Chazdon, R.L.Colwell, R.K.Denslow, J.S.Guariguata, M.R.[Statistical methods for estimating species richness of woody regeneration in primary and secondary rain forests of Northeastern Costa Rica]Statistical methods for estimating species richness of woody regeneration in primary and secondary rain forests of Northeastern Costa Rica

Forest inventories conducted in Indonesia (Berau District, East Kalimantan) highlighted the main festures of the Dipterocarpaceae primary forest. Dipterocarpaceae species accounted for 25% of the stand (diameter > 10 cm), 50% of the basal area and 60% of the standing volume. In three primary fore...


Sist, P.Saridan, A.[Structure et floristique de la foret primaire a Dipterocarpacees de l'Est-Kalimantan]Structure et floristique de la foret primaire a Dipterocarpacees de l'Est-Kalimantan
Autor: Nair, K.S.S.

To understand the potential role of forest products in household livelihoods, a study of the woodcraft industry in Zimbabwe was initiated. The woodcraft industry has increased steadily since the late 1980s. The factors driving the upsurge in the woodcraft industry are: (1) the increased demand by...


Nair, K.S.S.[Insect pests and diseases in Indonesian forest: an assessment of the major threats, research efforts and literature]Insect pests and diseases in Indonesian forest: an assessment of the major threats, research efforts and literature

Preliminary results of a field study in Pucallpa, Peruvian Amazon, to determine the establishment of six native forest tree species of economic value on degraded areas abandoned after intensive past agricultural use are reported. Study sites were on slash-and-burn farms partially covered with aba...


Soudre, M.Ricse, A.Carbajal, Y.Kobayashi, S.Sabogal, C.Alegre, J.[Adaptability of six native forest tree species to degraded lands in Pucallpa, Peruvian Amazon]Adaptability of six native forest tree species to degraded lands in Pucallpa, Peruvian Amazon
Autor: Nair, K.S.S.

In the context of the ongoing expansion of forest plantations of exotic tree species in the tropics, a critical assessment was made of the risk of insect pest outbreaks in exotics. To date, there have been two opposing views: that plantations of exotic species are at greater risk compared to indi...


Nair, K.S.S.[Pest outbreaks in tropical forest plantations: is there a greater risk for exotic tree species?]Pest outbreaks in tropical forest plantations: is there a greater risk for exotic tree species?

This paper deals with foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali. It discusses the location of study site, vegetation in the grazing orbit, herd management and livestock behaviour. Results on seasonal variation in feed supply, selection of the annual grazing or...


Diarra, L.Hiernaux, Pierre H.Y.Leeuw, P.N. de[Foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali]Foraging behaviour of cattle grazing semi-arid rangelands in the Sahel of Mali

Eleven Sesbania sesban and three S. goetzei accessions were evaluated for dry matter (DM) yield in response to phosphorus (P) application and fodder quality on an acidic Nitosol at Soddo, in the Ethiopian highlands. The soil at this site is known to be P deficient and to have high ability to fix ...


Berhe, KahsayTothill, J.C.Mohamed-Saleem, M.A.[Response of different sesbania accessions to phosphorus application and fodder quality of S. sesban under acid soil conditions]Response of different sesbania accessions to phosphorus application and fodder quality of S. sesban under acid soil conditions

Over the past 4 decades there has been considerable expansion in the plantation forestry along the eastern seaboard of South Africa. In particular there have been significant increases in eucalypt, and to a less extent, pine plantations on soils of a light sandy texture along the Zululand coastal...


Noble, A.D.Berthelsen, S.Mather, J.[Changes in soil chemical properties under two contrasting plantation systems on the Zululand coastal plain, South Africa]Changes in soil chemical properties under two contrasting plantation systems on the Zululand coastal plain, South Africa

Acidification of soil profiles from legume and N fertilized crops is a serious sustainability threat. Under tropical conditions of Northeast Thailand and Northern Australia, acidification to >90 cm has been recorded in Stylosanthes and Leucaena based pasture systems. Acidification has also been m...


Armour, J. D.Berthelsen, S.Ruaysoongnern, Sawaeng[Remediation of soil acidification by form of nitrogen fertilizer on grass swards of Australia and Thailand]Remediation of soil acidification by form of nitrogen fertilizer on grass swards of Australia and Thailand

The genetic variable of seven Phaseolus taxa has been evaluated on the basis of molecular data and the results have used to clarify the phyletic relationships between several taxa of the P. coccineus L. complex. Chloroplast DNA (cpDNA) from 33 populations was digested with six restriction endonuc...


Schmit, VéroniqueJardin, Paul duBaudoin, Jean-PierreDebouck, Daniel G.[Use of chloroplast DNA polymorphisms for the phylogenetic study of seven Phaseolus taxa including P. vulgaris and P. coccineus]Use of chloroplast DNA polymorphisms for the phylogenetic study of seven Phaseolus taxa including P. vulgaris and P. coccineus

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