scholarly journals Emissions from miombo woodland and dambo grassland savanna fires

2004 ◽  
Vol 109 (D11) ◽  
Author(s):  
Parikhit Sinha
Keyword(s):  
Miombo Woodland ◽  
Savanna Fires

Resource selection by grazing herbivores on post-fire regrowth in a West African woodland savanna

2007 ◽  
Vol 34 (2) ◽  
pp. 77 ◽  
Author(s):  
Erik Klop ◽  
Janneke van Goethem ◽  
Hans H. de Iongh
Keyword(s):  
Resource Selection ◽  
West African ◽  
Tree Cover ◽  
Resource Selection Functions ◽  
Risk Of Predation ◽  
Savanna Fires ◽  
Grass Sward ◽  
Burnt Areas ◽  
Good Visibility ◽  
Selection Of

The preference of grazing herbivores to feed on grass regrowth following savanna fires rather than on unburnt grass swards is widely recognised. However, there is little information on which factors govern patterns of resource selection within burnt areas. In this study, we attempted to disentangle the effects of different habitat and grass sward characteristics on the utilisation of post-fire regrowth by nine species of ungulates in a fire-dominated woodland savanna in north Cameroon. We used resource-selection functions based on logistic regression. Overall, the resource-selection functions identified the time elapsed since burning as the most influential parameter in determining probability of use by ungulates, as most species strongly selected swards that were recently burned. This pattern might be related to nutrient levels in the grass sward. In addition, most species selected areas with high grass cover and avoided grass swards with high amounts of dead stem material. This is likely to increase bite mass and, hence, intake rates. The avoidance of high tree cover by some species may suggest selection for open areas with good visibility and, hence, reduced risk of predation. Body mass seemed to have no effect on differential selection of post-fire regrowth, irrespective of feeding style.

Influence of timing and spatial extent of savanna fires in southern Africa on atmospheric emissions

2003 ◽  
Vol 54 (2) ◽  
pp. 395-404 ◽  
Author(s):  
Stefania Korontzi ◽  
Christopher O Justice ◽  
Robert J Scholes
Keyword(s):  
Southern Africa ◽  
Spatial Extent ◽  
Atmospheric Emissions ◽  
Savanna Fires

Amanita loosii. [Descriptions of Fungi and Bacteria].

2014 ◽  
Author(s):  
C. Sharp
Keyword(s):  
Ecosystem Services ◽  
Geographical Distribution ◽  
Democratic Republic ◽  
Conservation Status ◽  
Miombo Woodland ◽  
Republic Of The Congo

Abstract A description is provided for Amanita loosii, which as a likely mycorrhizal species, this fungus and the ecosystem services it provides are important in sustaining miombo woodland through enhanced uptake of minerals from nutrient-poor soils and by providing protection from desiccation. This fungus is highly prized for food and valued medicinally for stomach problems. Some information on its associated organisms and substrata, habitats, dispersal and transmission, and conservation status is given, along with details of its geographical distribution (Africa (Benin, Burundi, Cameroon, Democratic Republic of the Congo, Kenya, Malawi, Mozambique, Republic of the Congo, Tanzania, Togo, Zambia, Zimbabwe)).

Lactifluus velutissimus. [Descriptions of Fungi and Bacteria].

2014 ◽  
Author(s):  
C. Sharp
Keyword(s):  
Ecosystem Services ◽  
Geographical Distribution ◽  
Democratic Republic ◽  
Economic Impacts ◽  
Conservation Status ◽  
Miombo Woodland ◽  
Republic Of The Congo

Abstract A description is provided for Lactifluus velutissimus, which as a likely mycorrhizal species, this fungus and the ecosystem services it provides are important in sustaining miombo woodland through enhanced uptake of minerals from nutrient-poor soils and by providing protection from desiccation. This species is collected for food in Tanzania and Zimbabwe. Some information on its associated organisms and substrata, habitats, dispersal and transmission, and conservation status is given, along with details of its geographical distribution (Africa (Burundi, Democratic Republic of the Congo, Malawi, Tanzania, Zambia, Zimbabwe)). No reports of negative economic impacts have been found.

scholarly journals Seasonal distribution of African savanna fires

Nature ◽  
1992 ◽  
Vol 359 (6398) ◽  
pp. 812-815 ◽  
Author(s):  
Donald R. Cahoon ◽  
Brian J. Stocks ◽  
Joel S. Levine ◽  
Wesley R. Cofer ◽  
Katherine P. O'Neill
Keyword(s):  
Seasonal Distribution ◽  
African Savanna ◽  
Savanna Fires

scholarly journals Methane gas emissions from savanna fires: What analysis of local burning regimes in a working West African landscape tell us

2021 ◽  
Author(s):  
Paul Laris ◽  
Moussa Koné ◽  
Fadiala Dembélé ◽  
Lilian Yang ◽  
Rebecca Jacobs
Keyword(s):  
Ambient Air ◽  
Methane Emissions ◽  
Dry Season ◽  
West African ◽  
Biomass Composition ◽  
Fire Intensity ◽  
Methane Cycle ◽  
Gas Emissions ◽  
Savanna Fires ◽  
Fire Type

Abstract. Savanna fires contribute significantly to greenhouse gas emissions. While it is recognized that these fires play an important role in the global methane cycle, there are too few accurate estimates of emissions from West Africa, the continent's most active fire region. Most estimates of methane emissions contain high levels of uncertainty because they are based on generalizations of diverse landscapes that are burned by complex fire regimes. To improve estimates we used an approach grounded in the burning practices of people who set fires to working landscapes. We conducted 97 experimental fires collecting data for savanna type, grass type, biomass composition and amount consumed, scorch height, speed of fire front, fire type and ambient air conditions for two sites in Mali. We collected smoke samples for 36 fires using a canister method. We report values for fire intensity, combustion completeness, patchiness, modified combustion efficiency (MCE) and emission factor (EF). Our study finds that methane EFs ranged from 3.71 g/kg in the early dry season (EDS) to 2.86 in the mid-dry season (MDS). We found head fires had nearly double the CH4 EF of backfires (4.89 g/kg to 2.92). Fires during the MDS have the lowest intensity values and the lowest methane emissions 0.981 g/m2 compared with 1.030 g/m2 for EDS and 1.102 g/m2 for the late dry season (LDS). We conclude that policies aimed at shifting the burning regime earlier to reduce methane emissions will not have the desired effects, especially if fire type is not considered. We recommend using the adjusted mean value of 0.862 g/m2—based on the carbon content for West African grasses—for calculating emissions for West African savannas.

The age of large termite mounds—radiocarbon dating of Macrotermes falciger mounds of the Miombo woodland of Katanga, DR Congo

2015 ◽  
Vol 435 ◽  
pp. 265-271 ◽  
Author(s):  
Hans Erens ◽  
Mathieu Boudin ◽  
Florias Mees ◽  
Basile Bazirake Mujinya ◽  
Geert Baert ◽  
...  
Keyword(s):  
Radiocarbon Dating ◽  
Miombo Woodland ◽  
Dr Congo ◽  
Termite Mounds
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