<p> Additional file 3: Derived data sets of the habitat classification in Egypt</p><p>System Sub-system Classes Equation / Description / Processing</p><p>Epipelagic (Territorial_Waters) AND ((Bathymetry>=0) AND (Bathymetry<200))</p><p>Pelagic Mesopelagic (Territorial_Waters) AND ((Bathymetry>=200) AND (Bathymetry</p><p> e Bathypelagic (Territorial_Waters) AND ((Bathymetry>=1000) AND (Bathymetry n i r a</p><p>M Islands Islands On Screen Digitizing from Google Earth</p><p>Subsetting the Coral Reefs that located only in Egypt Corals Corals Then field verification has been done</p><p>LandCover ("LC" = 'AG')</p><p>Arable Land & Rural Gardens [Field] LC: Land Cover</p><p>[Value] AG: Agriculture Area Terrestrial LandCover ("LC" = 'UR')</p><p>Urban Areas [Field] LC: Land Cover</p><p>[Value] UR: Urban Area l a i c</p><p> i LandCover ("LC" = 'WAT') f i t r A Then field verification have been done Water Storage Areas [Field] LC: Land Cover</p><p>[Value] WAT: Water Assemblage Aquatic </p><p>Aquaculture Ponds Field monitoring using GPS </p><p>Salt Exploitation Sites Field monitoring using GPS</p><p>Canals, Drainage Channels and Ditches Water_Lines Shapefile has been updated from the World_Base_Map_Imagery ArcGIS 10.2 by on screen digitizing</p><p>)</p><p> d Rivers Banks Buffer (Nile River) with 1km n a l n I (</p><p>Fresh Seasonal/Intermittent Freshwater Marshes/Pools Field monitoring using GPS and on screen digitizing from Google Earth s d n a l</p><p> t Springs and Oases e W Permanent Saline, Brackish or Alkaline Lakes On Screen Digitizing from Google Earth Brackish Swamps and Marshes On Screen Digitizing from Google Earth and Field monitoring using GPS</p><p>Marine Rocky Shoreline</p><p>Sandy Shorelines and/or Beaches, Sand Bars, Spits, etc</p><p>Mud Shoreline and Intertidal Mud Flats</p><p>Salt Marshes (Emergent Grasses) System Sub-system Classes Equation / Description / Processing</p><p>Tidepools </p><p>Mangrove Submerged Roots On Screen Digitizing from Google Earth and Field monitoring using GPS</p><p>Mountains (DEM>=1000)</p><p>Hills and Plateaus (DEM>=500) AND (DEM<1000) High land High Areas (DEM>=200) AND (DEM<500)</p><p>Plain Areas (DEM>=0) AND (DEM<200)</p><p>Bare_Areas("BA_ID" = '3') Desert Sand dunes, Sand Sheets and Sand Mounds Then field verification have been done</p><p>(LandCover("LC" = 'BA')) AND (Bare_Areas("BA_ID" = '3'))</p><p>[Field] LC: Land Cover</p><p>Hamada Desert [Value] BA: Bare Area</p><p>Desert plain [Field] BA_ID: Bare Area Identification t r [Value] 3: Sand Dunes e s e D (Buffer Mediterranean Sea by 20 km on the terrestrial side of Egypt) AND (Bare_Areas("BA_ID" = '3')) Coastal Sand Dunes [Field] BA_ID: Bare Area Identification</p><p>[Value] 3: Sand Dunes</p><p>Updating LandCover("LC" = 'NVT') by on screen digitizing from military topographic map.</p><p>Valleys and Canyons [Field] LC: Land Cover</p><p>Low land [Value] NVT: Natural Vegetation</p><p>Depression (DEM<0)</p><p>Sabkhat On Screen Digitizing from Google Earth and Field monitoring using GPS</p><p>Caves & Field monitoring using GPS Subterranean Caves and Carsts Habitats</p><p> r Rivers Islands were subtracted from the Nile River e t a w Inland Lakes Egypt Lakes shape file have been updated h s e r F Islands On Screen Digitizing from Google Earth.</p>