Marbled Duck (Marmaronetta angustirostris) breeding in Tripoli (Libya)

Etayeb, K. S., Bourass, E. M., Bashimam, W., Wattier, R. & Brochet, A.-L. 2014. Marbled Duck Marmaronetta angustirostris breeding in Tripoli (Libya). In: Feltrup-Azafzaf, C., Dain, M., Brochet, A.L., Defos du Rau, P., Mondain-Monval, J.Y. & Azafzaf, H. (eds.). Bulletin of the network “Mediterranean Waterbirds”, No. 2. AAO, ONCFS, Tour du Valat. pp: 43-44. PDF

Reproduction de la Sarcelle marbrée Marmaronetta angustirostris à Tripoli (Libye).

Excerpt from the text:

“On 6 June 2012, we visited Mallaha (32° 53′ 58 N latitude and 13° 17′ 15 E longitude), as part of our ordinary field work of bird counts in wetlands in and around Tripoli. We recorded the breeding of Little Tern Sterna albifrons (26 nests, 3 live and 3 dead nestlings) and Black-winged stilt Himantopus himantopus (18 nests). During that, we suddenly found two dead ducklings (Pic. 1). A sample was sent to France (University of Burgundy) for genetic analyses to determine the species. The PCR analysis confirmed that the duckling belongs to Marbled Duck Marmaronetta angustirostris. This is the first record of breeding of this species in Libya (Etayeb et al. 2014)…..

On 4 July 2013, members of the Libyan Society for Birds (LSB) reported a breeding of Marbled duck at Tripoli Treatment plant Lagoon (32° 83′ 55 N, 13° 16′ 09 E). They observed an adult swimming with a chick (picture below). This finding confirms the breeding of Marbled Duck in Libya as being probably regular or at least occasional. Moreover, the breeding of this species in some other sites such as Tawergha complex, Al-Hammam wetland in Houne and some dams (e.g. Wadi Ka’am dam and Wadi Al-mjenin dam) is possible”.

Marbled Duck (Marmaronetta angustirostris), Tripoli Treatment Plant Lagoons, Libya, July 2013.

Adult and chick of Marbled Duck (Marmaronetta angustirostris), Tripoli Treatment Plant Lagoons, Libya, 4 July 2013 (Photo: Essam Bourass / Libyan Society for Birds)

Ecologie de la Sarcelle marbrée (Marmaronetta angustirostris) dans l’éco-complexe de zones humides de la vallée de l’Oued Righ (Sahara algérien)

Bouzegag, A., Saheb, M., Bensaci, E., Nouidjem, Y., & Houhamdi, M. 2013. Ecologie de la Sarcelle Marbrée Marmaronetta angustirostris (Ménétries, 1832) dans l’éco-complexe de zones humides de la vallée de l’Oued Righ (Sahara algérien). Bulletin de l’Institut Scientifique, Rabat, section Sciences de la Vie 35: 141-149. PDF

Résumé :

Une étude menée sur la Sarcelle marbrée Marmaronetta angustirostris du mois d’août 2007 au mois de juillet 2011 dans les zones humides de l’éco-complexe de la vallée de l’oued Righ (Sahara algérien) a montré le caractère sédentaire de la population nicheuse locale et mis en évidence la reproduction de cette espèce dans la majorité des plans d’eau. A cette population nicheuse locale s’ajoute en saison d’hivernage un nombre important de migrateurs. L’effectif maximal recensé a été de plus de 600 individus, en décembre, et les effectifs les plus bas de moins de 200 individus durant les mois  les plus chauds, soit juin et juillet de chaque année. Le bilan des rythmes d’activité diurne est dominé par l’activité alimentaire, qui représente 55.7 % du total. Elle s’opère à 75 % par basculement du corps du canard contre 25 % uniquement par plongeon de la tête. Cette activité est suivie par la nage avec 10.9 %, l’entretien du plumage (8.3 %), le sommeil (7.6 %), le vol (6.5 %), et les activités de parade (6 %) et d’antagonisme (5 %). De ce fait, les chotts et les sebkhas de la vallée confirment leur rôle de terrain de gagnage diurne. L’espèce niche régulièrement dans les milieux aquatiques sahariens étudiés. La période de nidification s’étale de la fin mars à la fin juin. Les nids sont édifiés dans les touffes de Salicornia fruticosa, Salsola fruticosa, Atriplex halimus, au sol sous Tamarix gallica et sur les premières ramifications de ses branches. Ils peuvent contenir jusqu’à 13 œufs.

Ecology of Marbled Teal Marmaronetta angustirostris (Ménétries, 1832) in the wetland complex of Oued Righ valley (Algerian Sahara)

Abstract:

We conducted a survey on the Marbled Teal Marmaronetta angustirostris in the wetland complex of Oued Righ valley (Sahara of Algeria) from August 2007 to July 2011. Our results showed that this species have a sedentary breeder status. The breeding of Marbled Teal was reported in the main wetlands of Oued Righ complex. Further of the local breeding population, an important number of migrating individuals came to spend the wintering season. The maximum of 600 Marbled Teal were observed in December, while less than 200 individuals were recorded in the hottest months of the year (June and July). Feeding was the dominated diurnal behaviour with 55.7 %. This activity was performed mainly by upending (75 %) and sometimes by head dipping (25 %). Which confirm the important role of wetland complex of Oued Righ as a diurnal feeding area. The other less dominant activities were swimming (10.9 %), preening (8.3 %), resting (7.6 %), flying (6.5 %),  courtship (6 %), and agonistic behaviour (5 %). The Marbled Teal breed regularly in most surveyed wetlands. The breeding period stretched from late March to late June. The majority of Marbled Teal nests contained thirteen eggs, settled mainly in tufts of Salicornia fruticosa, Salsola fruticosa, Atriplex halimus on branches near the water and in Tamarix gallica near the shore.

Marbled Teal (Marmaronetta angustirostris) nest with 10 eggs in El Hamraia chott, Oued Righ wetland complex, 2 June 2010.

Marbled Teal (Marmaronetta angustirostris) nest with 10 eggs in El Hamraia chott, Oued Righ wetland complex, 2 June 2010 (Photo: Moussa Houhamdi).

First Breeding Evidence of Marbled Duck (Marmaronetta angustirostris) in Libya

Etayeb, K. S., Yahia, J., Berbash, A., Wattier, R., & Brochet, A.-L. 2014. First Breeding Evidence of Marbled Duck (Marmaronetta angustirostris) in Libya. Waterbirds 37: 107–110.   doi: 10.1675/063.037.0114
PDF in ResearchGate.net

Abstract:

The first evidence of breeding of Marbled Duck (Marmaronetta angustirostris) in Libya, North Africa, is reported. In June 2012, at Mallaha wetland, in Tripoli, Libya, two dead ducklings were found that were later genetically identified as Marbled Duck. This breeding evidence suggests that this and other duck species may breed elsewhere in Libya. Better knowledge on Libyan, and more generally on North African waterbirds is needed to document the population size and the status of these species. Such information will be important to secure the future of threatened species, such as the Marbled Duck.

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Observations in 2013 (not related to the article above):

“During the breeding season of 2013, the Libyan Society for Birds (LSB) recorded the breeding of the Marbled Duck (see photo below by Essam Bourass) and Little Grebe (Tachybaptus ruficollis) in the Tripoli Treatment Plant, the breeding of Squacco Heron (Ardeola ralloides) and other birds were also suspected”.

يتم هذا الموسم دراسة تكاثر الطيور فى احواض محطة المعالجة بالهضبة وتم تسجيل تكاثر طائر البطة الرخامية Marble Duck والغواص الصغير Little Grebe وهناك احتمال لتكاثر بعض الطيور الأخرى ولازالت الدراسة جارية مع قرب انتهاء الموسم

Information posted by Wagih Bashimam in the Facebook page of the Libyan Society for Birds.

Marbled Duck (Marmaronetta angustirostris), Tripoli Treatment Plant Lagoons, Libya, July 2013.

Adult and chick of Marbled Duck (Marmaronetta angustirostris), Tripoli Treatment Plant Lagoons, Libya, 4 July 2013. (Photo: Essam Bourass).

Thanks to Essam Bourass for the picture.

Diurnal wintering behaviour of the Marbled Teal (Marmaronetta angustirostris) in north-east Algeria

Aberkane, M., Maazi, M.-C., Chettibi, F., Guergueb, E.-Y., Bouslama, Z., & Houhamdi, M. (2014). Diurnal wintering behaviour of the Marbled Teal (Marmaronetta angustirostris) in north-east Algeria. Zoology and Ecology 24: 10-15 . doi:10.1080/21658005.2014.889870
PDF in ResearchGate.net

Abstract:

The Marbled Teal, Marmaronetta angustirostris, is a globally threatened species, especially in the Western Mediterranean. Its numbers are currently following a downward trend. The population size and status of the Marbled Teal are well estimated in some areas of its geographic range, but in others, such as Algerian wetlands, they are still not known. Population and time-activity budget estimation of the species were carried out in the semi-arid Ramsar wetland Garaet Timerganine located in north-east Algeria in the course of two subsequent wintering seasons. The wintering population showed a significant decrease in numbers from the first to the second year with peaks of 763 and 270 individuals, respectively. This variation was probably due to the abrupt water level rise in the wetland, scarcity of the vegetation cover and availability of many other wintering places following heavy rains in the second year. The time-activity budget was dominated by resting followed by swimming and feeding. Preening, flight and courting were rarely observed accounting for less than 5% of the whole diurnal activity budget. Although the species preferred shallow parts of the wetland, it also used terrestrial habitats near the shore.

Marbled Duck (Marmaronetta angustirostris)

Marbled Duck or Marbled Teal (Marmaronetta angustirostris). (Photo: Vince Smith in lickr, licence: CC-by-sa)

Breeding ecology of the Marbled Duck Marmaronetta angustirostris at Boussedra march (Annaba, Northeast of Algeria)

Aberkane, M., Chettibi, F., Bakhouche, B., Draidi, K., Bouslama, Z. & Houhamdi, M. 2013. Breeding ecology of the Marbled Duck Marmaronetta angustirostris at Boussedra march (Annaba, Northeast of Algeria). Annals of Biological Research 4 (10): 103-107.  PDF

Abstract:

Marbled duck Marmaronetta angustirostris (Anatidae) nested for three consecutive years (2011, 2012 and 2013) in the marais de Boussedra (North-East of Algeria): a much polluted site. Nests are built on Scolymus hispanicus and Innula graveloens (Asteraceae). In water, the nests are built in clusters of Typha angustifolia (Typhaceae). Nesting occurs between mid-May and mid-June of each year. The eggs have a mean weight of 32.61g and a volume of 26.51 cm3. The hatching rate recorded is 40.40% and the causes of failure are many and the most important are predation by the White Stork Ciconia ciconia, the rodents and the dogs.

Chicks of the Marbled Duck (Marmaronetta angustirostris) after hatching

Chicks of the Marbled Duck (Marmaronetta angustirostris) after hatching (M. Abdekane)