Startseite Social organization and demography of reintroduced Dorcas gazelle (Gazella dorcas neglecta) in North Ferlo Fauna Reserve, Senegal
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Social organization and demography of reintroduced Dorcas gazelle (Gazella dorcas neglecta) in North Ferlo Fauna Reserve, Senegal

  • Teresa Abáigar EMAIL logo , Mar Cano , Cheikh A.T. Djigo , Jacques Gomis , Thialao Sarr , Babacar Youm , Hugo Fernández-Bellon und Conrad Ensenyat
Veröffentlicht/Copyright: 19. Januar 2016
Mammalia
Aus der Zeitschrift Mammalia Band 80 Heft 6

Abstract

As part of a reintroduction project in Senegal, 23 (9.14) captive-born Dorcas gazelles were released into a 440-ha fenced-in area in Katané (North Ferlo Fauna Reserve, Senegal) in March 2009. After 4 years of seasonal monitoring, the gazelles showed progressive adaptation of their behavior to semi-wild living conditions. Breeding gradually became seasonal, and 53.8% of births occurred during the rainy season (July to September). Gazelle group size and composition varied seasonally. Groups were smallest during the dry season (2.29±1.72) and largest at the beginning of the rainy season (4.18±2.73). Social group composition also showed seasonal variation. There were always a larger proportion of solitary males than solitary females and mixed couples were observed throughout the year. All-male groups were found the least. The proportion of adult females with subadults and juveniles decreased during the early rainy season, while mixed adults, subadults and juveniles groups increased during this period. The mortality rate during the first weeks after release was 13%. Four years of monitoring after release, demographic traits of this released population reveal its adaptation from captive to natural-living conditions.


Corresponding author: Teresa Abáigar, Estación Experimental de Zonas Áridas (CSIC), Crta. Sacramento sn, 04120-La Cañada de S. Urbano, Almería, Spain, e-mail:
aMar Cano passed away.

Acknowledgments

The authors thank the staff of the Direction of National Parks in Dakar as well as in Ranérou and Katané for providing technical and field assistance. This study was funded by The Spanish National Research Council (CSIC, Economic and Innovation Ministry), the Barcelona Zoo (BSMSA, Barcelona Municipality) and the Direction of National Parks of Senegal (Environment Ministry).

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Received: 2015-2-6
Accepted: 2015-11-10
Published Online: 2016-1-19
Published in Print: 2016-11-1

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