Browsing by Author "Carroll, John P."

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    Breeding requirements of Nahan’s Francolin, Francolinus nahan, in Budongo forest reserve, Uganda
    (African Journal of Ecology, 2010) Sande, Eric; Dranzoa, Christine; Wegge, Per; Carroll, John P.
    The Nahan’s Francolin Francolinus nahani is a globally threatened species associated with remnant forests of the eastern equatorial lowlands of the Democratic Republic of the Congo and Uganda. We studied the species in the Budongo Forest Reserve during March 1998 to January 2000 in an attempt to document some aspects of breeding requirements. We located nests by physically searching the forest and through following radio-tagged adults. We measured demographical and habitat parameters associated with each nest. Our data suggest that trees of large diameter at breast height with appropriate buttress formation are important for long-time survival of Nahan’s Francolins.
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    Home ranges and survival of Nahan’s Francolin Francolinus nahani in Budongo Forest, Uganda
    (African Journal of Ecology, 2009) Sande, Eric; Dranzoa, Christine; Wegge, Per; Carroll, John P.
    We studied home ranges, habitat use and survival of radiotagged Nahan’s Francolin in Budongo Forest Reserve, Uganda during July 1998–December 1999. We studied Nahan’s Francolin in an unlogged nature reserve, in a compartment logged in 1947–1952 and in a compartment logged twice, in 1963–1964 and 1996–1997. Mean home range was 14.22 ± 1.35 ha (n = 17). The home range was significantly larger in the nature reserve than in the recently logged compartment. Birds spent more time during the day in areas with high understorey vegetation density but preferred to roost and nest between buttresses of large trees. Understorey vegetation density and canopy openness were significantly greater in the logged forest than in the nature reserve. Annual survival of adult Nahan’s Francolins was 20.09 ± 7.33% (n = 23). Our results suggest that the maintenance of large trees and areas with high understorey vegetation density are both important for Nahan’s Francolin.