In a context of climate change characterized by rising temperatures, increased greenhouse gases and frequent droughts, the Sahel is presented as one most vulnerable areas to adverse effects change. The objective this study assess above-ground biomass carbon stock three Sahelian species: Acacia raddiana tortilis (Forsk.) hayne ssp. (savi) Brenan, senegal (L.) Willd Balanites aegyptiaca (L.). was...

Many migratory bird species, several of which are in severe decline, and African residents spend the northern winter Sahel, by nature a huge savannah, half has been converted into farmland. We analyse impact such large-scale changes on birds. On average, woody cover is 38% lower farmland than savannah. More critically, farmers have drastically changed vegetation communities their In arid semi-a...

Eight types of Sudanese honey produced by Apis mellifera collected from Tabga region, River Nile State (North Central Sudan) different floral sources, namely, Faseolus vulgaris " Fasoulia" , Balanites aegyptiaca" Hejleeg" Acacia seyal var. seyal" Taleh Ahmr" Faidherbia albida" Haraz" Lawsonia inermis" Henna" Tamarix nilotica" Tarfa" fistula" Taheh Abiyad" and tortilis" Samur" were assayed for a...

The effects of climate change have had a major impact on forage availability in the Sahel and Saharan regions Chad recent years. This has led to migration farmers search long-distance grazing, thus impacting potential animals produce good quality milk meat. It is with this mind that study was conducted knowledge feeding practices provinces Wadi-Fira West-Ennedi (Chad) during lean period. More s...

The Sahel is thinly covered by trees, but nevertheless forms an important habitat for millions of tree-dwelling birds. We describe tree availability and selection 14 insectivorous Afro-Palearctic migrants 18 Afro-tropical residents (10 insectivores, 3 frugivores 5 nectarivores) inhabiting the from Atlantic to Red Sea. Of 304 woody species identified across region during systematic fieldwork in ...

BACKGROUND Pastoral populations around the world hold complex and detailed ethnoveterinary knowledge, essential for the survival of their herds and securing their livelihood. In recent decades, several studies have given attention to local veterinary remedies and practices and their validation, and to the local conceptualization of livestock diseases. Despite this, relatively little has been re...

Abstract Twenty-five increment cores and tree discs were sampled for four common trees in Wadi Allaqi, an extremely arid region South-East Egypt (19 Acacia tortilis subsp. raddiana (Savi) Brenan 2 each of Balanites aegyptiaca (L.) Delile, ehrenbergiana Hayne, Tamarix nilotica (Ehrenb.) Bunge). The main aim the current study is to achieve a longer temporal perspective on growth, longevity, margi...

A preliminary experimental study was carried out to examine the ability of a chemically modified Acacia spp. to resist biodegradation. The modifications of Acacia mangium and Acacia hybrid were carried out by propionic anhydride and succinic anhydride in the presence of sodium formate as a catalyst. The treated samples were found resistant to microbial attack, while the untreated ones were dama...