Research Article

Distribution and Numbers of Three Globally Threatened Waterbird Species Wintering in Morocco: The Common Pochard, Marbled Teal, and White-Headed Duck

Table 2

Most important wintering sites of the Common Pochard (2010–2019).

Site nameAverage number1Max.21%
NA3
ImportanceStandard deviation

Barrage Hassan Ad-Dakhil85017001SNI/SII2530
Barrage Mohammed V626156002SNI/SII23816
Merja de Sidi Bou Ghaba51412008SNI/SII2258
Aguelmam Afennourir46826004SNI/SII2624
Merja de Wad Fouwarate41310008SNI/SII2308
Barrage Wad Al Makhazine31711013SNI/SII2345
Barrage de Smir31216894SNI/SII2462
Sadd Al Ajras3053051SNI/SII298
Barrage Asfalou3003001SNI/SII20
Aguelmam Abekhane2968552SNI/SII2200
Barrage Al Massira25670383SNI/SII21853
Aguelmam N’Tifounassine2276521SNI/SII2145
Merja Zerga21018002SNI/SII2324
Barrage Hassan II18611002SNI/SII2327
Dayet Ifrah1808603SNI/SII2218
Aguelmams Sidi Ali-Ta’nzoult17217004SNI/SII2360
Barrage Mechra’ Hommadi1262902SNI/SII282
Barrage Enjil1246903SNI/SII2179
Barrage Oued Rmel1241602SNI/SII237
Dayet ‘Awa12210303SNI/SII2192
Embouchure de Wad Malwiya1042245SNI/SII267
Barrage Moulay Youssef941141SNI/SII243
Merja Bargha8915904SNI/SII2323
Marais de Wad Smir873913SNI/SII283
Barrage Sahla851641SNI/SII280
Barrage Al Wahda842831SNI/SII2117
Barrage Hassar741483SPNI/SII260
Mlalah du Bas Tahaddart694801SPNI/SII296
Barrage Kheng El Hda672004SPNI/SII261
Barrage Petit Tizil522502SPNI/SII279
Dayet Hachlaf451631SPNI/SII256
Barrage Zelmou381591SPNI/SII244
Barrage’Arabat38941SPNI/SII240
Barrage Idriss Premier345701SPNI/SII2156
Marais du bas Loukkos344101SPNI/SII283
Merja des Wlad Khallouf302401SPNI/SII253
Merja Al Halloufa256802SPNI/SII2220
Embouchure de Wad Massa2333301SPNI/SII2832
Merja des Wlad Skher236502SPNI/SII2143
Lagunes de Sidi Moussa-Walidia1625001SPNI/SII2431
Sebkha Bou Areg124061SPNI/SII2109

1The average (mean) of the species’ annual numbers counted in a site (their sum is divided by the number of years the site was censused). 2Maximum wintering number observed in a site since its first year of census. 3Number of winters during which 1% of the national average (7.496) is exceeded.