Results 111 to 120 of about 3,830 (194)

Invasive, naturalized and casual alien plants in southern Africa: a sum­mary based on the Southern African Plant Invaders Atlas (SAPIA)

open access: yesBothalia: African Biodiversity & Conservation, 2007
The primary objective of this publication is to provide an overview of the species identity, invasion status, geographical extent, and abundance of alien plants in South Africa, Swaziland and Lesotho, based on field records from 1979 to the end of 2000 ...
L. Henderson
doaj   +1 more source

Evaluación inicial de un ensayo de manejo en Acacia dealbata

open access: yesCiencia & Investigación Forestal, 2010
Dentro de su programa de investigación sobre acacias, que busca posicionar el uso de estas especies y su utilización económica en el país, el Instituto Forestal ha desarrollado diversos trabajos y experiencias orientadas al manejo silvícola de diferentes especies del género Acacia, con el fin de generar una base experimental para su uso como ...
Juan Carlos Pinilla Suárez   +1 more
openaire   +2 more sources

Rangewide ploidy variation and evolution in Acacia senegal: a north-south divide? [PDF]

open access: yes, 2015
Knowledge of rangewide variation in DNA content and ploidy level may be valuable in understanding the evolutionary history of a species. Recent studies of Acacia senegal report diploids and occasional tetraploids in the Sudano-Sahelian region of sub ...
Cavers, Stephen   +4 more
core   +1 more source

The identification and distribution of Glycine latrobeana (Meissn.) Benth. in Tasmania [PDF]

open access: yes, 1994
Glycine latrobeana has commonly been confused in Tasmania with other Glycine species and also with Desmodium gunnii.This paper details the known distribution and habitat characteristics of G.
Lynch, AJJ
core   +2 more sources

Could Control of Invasive Acacias Be a Source of Biomass for Energy under Mediterranean Conditions?

open access: yesChemical Engineering Transactions, 2014
Mediterranean summer drought conditions may limit the usefulness of most woody energy crops common in other European regions. Exotic tree species well adapted to summer stress, such as eucalyptus and acacias, may be more promising as biomass producers ...
M. Carneiro   +3 more
doaj   +1 more source

Evaluation préliminaire des risques d'invasion par les essences forestières introduites à Madagascar [PDF]

open access: yes, 2009
Il est désormais admis que l'introduction d'une espèce exotique en milieu insulaire s'accompagne toujours d'un risque environnemental, représenté par l'éventuel déclenchement d'une invasion biologique.
Bellefontaine, Ronald   +3 more
core  

Estudos preliminares de Adsorventes Lenhocelulósicos para a Remoção de Cefalosporinas

open access: yesMillenium
Introduction: Acacia dealbata was explored as a biosorbent to remove cephalosporin from aqueous solutions. This study intends to demonstrate the feasibility of using lignocellulosic low-cost materials in the removal of pollutants, valorizing waste ...
Luísa Cruz-Lopes   +4 more
doaj  

Characteristic plants of Kettering and its immediate vicinity [PDF]

open access: yes, 1903
The following is a classified list of plants collected within the limits of the township of Kettering in the month of November, 1901. The greater part of the shrubs and herbs were in flower, and the collection, although far from complete, may be ...
Johnston, Robert Mackenzie
core   +1 more source

Automation of pollen analysis using a computer microscope : a thesis presented in partial fulfilment of the requirements for the degree of Master of Engineering in Computer Systems Engineering at Massey University [PDF]

open access: yes, 2004
The classification and counting of pollen is an important tool in the understanding of processes in agriculture, forestry, medicine and ecology. Current pollen analysis methods are manual, require expert operators, and are time consuming.
Holdaway, Craig Alexander
core  

A proposed prioritization system for the management of invasive alien plants in South Africa [PDF]

open access: yes, 2003
Every country has weed species whose presence conflicts in some way with human management objectives and needs. Resources for research and control are limited, so priority should be given to species that are the biggest problem. The prioritization system
Fairbanks, D H K   +10 more
core   +1 more source

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