Vanishing Knowledge of Plant Species in the Wadi Allaqi Desert Area of Egypt

The distribution and abundance of plant species are strongly linked to the physical environmental and thus to anthropogenic disturbances. Changes in desert vegetation, in particular, can have drastic impacts on human livelihoods in these areas as ecosystem services may be affected (Dubroeucq and Livenais 2004; Klintenberg et al. 2007; Käyhkö et al. 2011; Rohde and Hoffman 2012). The Wadi Allaqi Biosphere Reserve is a hyper-arid desert in southern Egypt, inhabited by Bedouin. Traditionally, the Bedouin of Wadi Allaqi are a highly mobile group of pastoralists who follow seasonal migration routes taking advantage of local plant species as food, fuel, medicine, construction materials, and fodder for their livestock (Belal et al. 1998; Badri and Hamed 2000). Changes in environmental conditions of the wadi, however, have led to a change in composition of the native vegetation and its utilization by the Bedouin, which in turn has impacted their livelihood patterns (Briggs et al. 1993; Solway and Mekki 1999; Shaltout et al. 2010). The construction of the Aswan High Dam in from the 1960s and the creation of a permanent water resource in the form of Lake Nasser, in particular, have radically altered the natural environment and associated vegetation in this hyper-arid area (Pulford et al. 1992; Springuel 1994; Belal et al. 1998). Several studies have demonstrated the strong effects of Lake Nasser on the vegetation of the lower part of the wadi system, which drains into the now-inundated Nile valley in Egyptian Nubia (White 1988; Springuel and Murphy 1990; Springuel and Mekki 1994; Briggs et al. 1999; Badri and Hamed 2000; Briggs et al. 2003; Sheded et al. 2006; Shaltout et al. 2009; Yacoub 2009; Shaltout et al. 2010). Many Wadi Allaqi Bedouin have migrated and settled on the shores of the Lake in order to take advantage of this water resource and the newly established grazing areas. As a result, these traditionally nomadic people have adopted a semisettled pattern of life (Briggs et al. 1993; Ali et al. 2000). A more recent development is a settlement in Wadi Allaqi with houses, schools, and health facilities provided by the Egyptian government, creating new livelihood possibilities (Springuel and Belal 2001). As part of this development, Allaqi Village was built in 2003. In this study, we investigate changes in plant species knowledge of the Bedouin community in Wadi Allaqi Biosphere Reserve to assess the effects of the new settlements on the shores of the Lake in the context of the socioeconomic dynamics of the area.