Browsing by Author "Nangendo, Grace"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Conservation of vertebrates and plants in Uganda: Identifying Key Biodiversity Areas and other sites of national importance
    (Conservation Science and Practice, 2019) Plumptre, Andrew J.; Ayebare, Sam; Behangana, Mathias; Forrest, Tom G.; Hatanga, Paul; Kabuye, Christine; Kirunda, Ben; Kityo, Robert; Mugabe, Hamlet; Namaganda, Mary; Nampindo, Simon; Nangendo, Grace; Nkuutu, David N.; Pomeroy, Derek; Tushabe, Herbert; Prinsloo, Sarah
    Uganda is one of the most species rich countries in Africa because of the presence of several major biomes. However, it is also a country that has lost much of its natural habitat to agriculture. Uganda is a country that has been better surveyed for its biodiversity than many African countries, but despite this, there has not been a comprehensive analysis of the critical sites that contribute to biodiversity conservation at a global, as well as at a national level. We here present such an assessment using mammals, birds, reptiles, amphibians, and plants as surrogate taxa. We identified 36 terrestrial sites that are of sufficient global importance to qualify as Key Biodiversity Areas (KBAs), using the Global Standard for the Identification of KBAs, which complement an additional nine freshwater sites. National red listing of species and ecosystems was used to identify sites of national importance for conservation. We employ a conservation planning approach using Marxan to identify the minimum set of sites needed to conserve all the globally and nationally threatened species and nationally threatened habitats in Uganda. The findings show that most of the remaining natural habitat in Uganda is important for the conservation of globally and nationally threatened species and threatened habitat. Large areas of irreplaceable habitat occur outside protected areas, although more extensive surveys of these areas would likely reduce the area that is irreplaceable.
  • Thumbnail Image
    Item
    Tree species composition and diversity in Agoro-Agu Central Forest Reserve, Lamwo District, Northern Uganda
    (International Journal of Biodiversity and Conservation, 2021) Okullo, John B. L.; Afai, Sylvano; Nangendo, Grace; Kalema, James
    Tree species composition and diversity were assessed in Agoro-Agu Central Forest Reserve located in Lamwo district-Northern Uganda. Fifteen transects, each 2 km long, were established in the reserve. A procedure of nested quadrats was employed for a systematic sampling of mature trees, saplings and seedlings at 100 m interval(s). Vegetation analysis was conducted in Species Diversity and Richness (SDRiv) software. A total of 100 species of trees belonging to 36 families were recorded. The dominant tree species, also with high Importance Value Indices were Combretum molle G. Don, Albizia grandibracteata Taub. and Vachellia hockii De Wild. Tree species diversity was higher in the intact part (H’=3.46) than in the degraded part (H’=2.86). Lower diversity in the degraded part of the reserve could be due to human disturbance and resulting conducive condition for the early establishment of pioneer species during succession. The occurrence of mixed species with indicator species for both savannah woodlands and Afromontane tree species indicates that Agoro-Agu is an enriched forest for enhanced conservation. Management options that limit continuous degradations such as the enforcement of environmental laws, tree enrichment planting, and ex-situ conservation should be undertaken to restore the status of trees in the degraded part of the reserve.