Results 91 to 100 of about 37,855 (304)

A new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae)

open access: yesNordic Journal of Botany, EarlyView.
Revisions of herbarium collections reveal a new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae). Strophopappus comprises nine species occurring in South America, eight of which are endemic to Brazil. Currently, Vernonia riedeliana is treated as a synonym of Strophopappus bicolor.
Danielle Remor   +2 more
wiley   +1 more source

International Savanna Fire Management Initiative

open access: yesBiodiversidade Brasileira, 2019
Due to colonisation, traditional ways of fire management have been suppressed across landscapes and as a result vast areas of country are poorly managed and degraded. Conventional methods of firefighting have largely failed. Climate change will make the
Sam Johnston, Nolan Hunter
doaj   +3 more sources

Canscora agni (Gentianaceae), a new species from the fire‐prone Indian savannas

open access: yesNordic Journal of Botany, EarlyView.
We describe Canscora agni from the Indian savannas as a distinct species which differs from its allied species Canscora alata in having fewer and shorter leaves, pedicel‐wings unequal across the length, bracts with glandular hair on the margins, calyx‐wings being four, wider, up to 2.3 mm, with distinct reticulate venation and having ovary length up to
Ashish N. Nerlekar   +1 more
wiley   +1 more source

Egalitarian Revolution in the Savanna The Origins of a West African Political System [PDF]

open access: yes, 2012
Many West African societies have egalitarian political systems, with non-centralised distributions of power. 'Egalitarian Revolution in the Savanna' analyses a wide range of archaeological data to explore the development of such societies.
Dueppen, Stephen A.
core  

Test and Disseminate Technologies to Intensity Vegetable Mono-cropping [PDF]

open access: yes, 2014
This data study explores integrating vegetable into cereal-legume cropping productions systems in Ghana About the project Project title: AfricaRISING - Sustainable Intensification of Cereal-based Farming Systems in the Guinea-Sudan-Savanna of Ghana
International Institute for Tropical Agriculture (IITA)   +2 more
core   +1 more source

From numbers to ecosystems and biodiversity: A mechanistic approach to monitoring

open access: yesKoedoe: African Protected Area Conservation and Science, 2011
Diverse political, cultural and biological needs epitomise the contrasting demands impacting on the mandate of the South African National Parks (SANParks) to maintain biological diversity.
Sam Ferreira   +5 more
doaj   +1 more source

Portulaca abscondita (Portulacaceae, Caryophyllales), a new microendemic species from Monte Azul, Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin   +7 more
wiley   +1 more source

Groundnut (Arachis hypogaea L.) Response to Phosphorus and Weed Management in the Guinea Savannah Zone of Ghana

open access: yesTropicultura, 2019
Field studies were conducted during the 2013 and 2014 cropping seasons at the experimental field of the CSIR-Savanna Agricultural Research Institute, Nyankpala, to evaluate the response of groundnut to phosphorus fertilizer and manual weed control.
Dzomeku I.K.   +4 more
doaj   +1 more source

Guapira leucophylla (Nyctaginaceae, Caryophyllales), a new species from the northern Espinhaço Range of Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Guapira Aubl. (Nyctaginaceae, Pisonieae) comprises dioecious shrubs and trees widely distributed in the Neotropics and occupying diverse habitats. In the Brazilian Cerrado, the genus occurs in several phytophysiognomies, including Campos Rupestres, a montane rock ecosystem with high levels of endemism but still marked by significant gaps in botanical ...
Danilo Alvarenga Zavatin   +4 more
wiley   +1 more source

Some consequences of woody plant encroachment in a mesic South African savanna [PDF]

open access: yes, 2011
This study investigates the diversity present in the patch mosaic of vegetation, and also investigates how woody plant encroachment is affecting ecosystem services in Hluhluwe Game Reserve, with a focus on biodiversity, carbon storage and recreation and ...
Gray, Emma Fiona
core  

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