Results 51 to 60 of about 189 (99)

Proposition d\u27un cadre de représentation des bioinvasions en milieu rural : cas de Acacia dealbata à Madagascar [PDF]

open access: yes, 2009
is available in the PDF file of the article.El resumen está disponible en el archivo PDF del artículo.Dans certaines situations rurales où se conjuguent pauvreté des populations et rareté des ressources, l\u27analyse des conséquences de l\u27invasion d ...
Kull, Christian A.   +2 more
core   +1 more source

The evaluation of Phenrica sp.2 (Coleoptera: Chrysomelidae: Alticinae), as a possible biological control agent for Madeira vine, Anredera cordifolia (Ten.) Steenis in South Africa [PDF]

open access: yes, 2006
Anredera cordifolia (Basellaceae), Madeira vine, is a perennial, semi- succulent climber native from Paraguay to southern Brazil and northern Argentina. It has a history of weediness and difficulty of control once established.
Van der Westhuizen, Liamé
core   +1 more source

Seed bank distribution and viability of selected Vachellia and Acacia species in KwaZulu-Natal, South Africa. [PDF]

open access: yes, 2015
M. Sc. University of KwaZulu-Natal, Pietermaritzburg 2015.There is increasing concern regarding the impact of invasive alien plants (IAPs), where their spread is a serious threat to both the structure and functionality of ecosystems, which causes the ...
Webster, Amy Frances.
core  

Wasps (Hymenoptera: Chalcidoidea) associated with galls in seed-capsules of Eucalyptus camaldulensis (Myrtaceae) in South Africa : species composition, trophic relationships and effects [PDF]

open access: yes
The Australian river red gum (Eucalyptus camaldulensis Denhardt) (Myrtaceae) is regarded in South Africa as a valuable general-purpose utility and ornamental tree, as well as an essential source of nectar and pollen to sustain the honeybees which are ...
Klein, Hildegard
core   +1 more source

Wasps (Hymenoptera: Chalcidoidea) associated with galls in seed-capsules of Eucalyptus camaldulensis (Myrtaceae) in South Africa : species composition, trophic relationships and effects [PDF]

open access: yes, 2009
Includes bibliographical references (leaves 94-107).The Australian river red gum (Eucalyptus camaldulensis Denhardt) (Myrtaceae) is regarded in South Africa as a valuable general-purpose utility and ornamental tree, as well as an essential source of ...
Klein, Hildegard
core  

An assessment of the efficiency and effectiveness of the Working for Water NBAL mapping, contract teams and clearing of Acacia mearnsii [PDF]

open access: yes, 2016
Working for Water (WfW) works to fulfil their dual mandate of protecting ecosystem services and creating employment opportunities for poor communities. There have been many successes but evidence is increasing regarding the inefficiencies at project and ...
Modipa, Rebone Dineo
core   +1 more source

A spatio-temporal, landscape perspective on acacia dealbata invasions and broader land-use and cover changes in the Northern Eastern Cape, South Africa [PDF]

open access: yes, 2018
Biological invasions are a wicked, social-ecological problem, interacting with numerous components within and across a range of spatio-temporal scales, with the potential to disturb broader socio-economic and ecological systems.
Gouws, Aidan John
core   +1 more source

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