Unveiling Management Implications for Odonata Assemblages in Tropical Rain Forests of the Albertine Rift, Uganda

ABSTRACT Odonata is a cosmopolitan, indicator group of insects residing on all continents except Antarctica, with notable species richness in Africa's tropical montane forests. In East Africa, this group is threatened by habitat loss and degradation driven by rapid population growth. This study investigated odonate assemblages and their conservation concern in Bwindi Impenetrable National Park (BINP, Afromontane) and Bugoma Central Forest Reserve (BCFR, mid‐altitude) in the Albertine Rift in Uganda. From December 2022 to July 2023, 61 sites were cross‐sectionally surveyed (26 in BCFR, 35 in BINP) to analyse community composition, habitat preferences, and conservation threats. Odonate key habitats in these forests were mapped. Nonmetric multidimensional scaling revealed distinct odonate communities in BCFR and BINP with limited overlap. Odonate diversity was computed using both Shannon diversity indices and species richness. BCFR registered a significantly higher overall species richness (median = 3.0) than BINP (median H = 2.0, p < 0.01). However, BINP hosted more range‐restricted and globally threatened species, with a higher threat‐based score (median TBS = 2.00) compared to BCFR (median TBS = 0.00, p < 0.01). Threatened species such as Neodythemis munyaga (Endangered) and Albertine Rift endemics such as Stenocypha molindica and Stenocypha jacksoni were strongly associated with BINP's high‐altitude, pristine streams characterized by clear water with low salinity, total dissolved solids and electrical conductivity. Substantial anthropogenic pressures were recorded in BCFR, threatening critical odonate habitats. We emphasise the urgent need for targeted conservation efforts to preserve the forest ecosystem services and their unique odonate diversity.

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Publication Details

Journal
Aquatic Conservation Marine and Freshwater Ecosystems
Published
2025-12-01
DOI
https://doi.org/10.1002/aqc.70257
Primary Topic
Freshwater macroinvertebrate diversity and ecology
Type
article
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article

Unveiling Management Implications for Odonata Assemblages in Tropical Rain Forests of the Albertine Rift, Uganda

Perpetra Akite, Marie Claire Dusabe, Julius Tumusiime, Grace Kagoro‐Rugunda et al.
Aquatic Conservation Marine and Freshwater Ecosystems
Freshwater macroinvertebrate diversity and ecology
article

Unveiling Management Implications for Odonata Assemblages in Tropical Rain Forests of the Albertine Rift, Uganda

Perpetra Akite, Marie Claire Dusabe, Julius Tumusiime, Grace Kagoro‐Rugunda, Christian Albrecht, Esther Toloa, Francis Ssenkuba, Jude Ndimulodi
article en

Abstract

ABSTRACT Odonata is a cosmopolitan, indicator group of insects residing on all continents except Antarctica, with notable species richness in Africa's tropical montane forests. In East Africa, this group is threatened by habitat loss and degradation driven by rapid population growth. This study investigated odonate assemblages and their conservation concern in Bwindi Impenetrable National Park (BINP, Afromontane) and Bugoma Central Forest Reserve (BCFR, mid‐altitude) in the Albertine Rift in Uganda. From December 2022 to July 2023, 61 sites were cross‐sectionally surveyed (26 in BCFR, 35 in BINP) to analyse community composition, habitat preferences, and conservation threats. Odonate key habitats in these forests were mapped. Nonmetric multidimensional scaling revealed distinct odonate communities in BCFR and BINP with limited overlap. Odonate diversity was computed using both Shannon diversity indices and species richness. BCFR registered a significantly higher overall species richness (median = 3.0) than BINP (median H = 2.0, p < 0.01). However, BINP hosted more range‐restricted and globally threatened species, with a higher threat‐based score (median TBS = 2.00) compared to BCFR (median TBS = 0.00, p < 0.01). Threatened species such as Neodythemis munyaga (Endangered) and Albertine Rift endemics such as Stenocypha molindica and Stenocypha jacksoni were strongly associated with BINP's high‐altitude, pristine streams characterized by clear water with low salinity, total dissolved solids and electrical conductivity. Substantial anthropogenic pressures were recorded in BCFR, threatening critical odonate habitats. We emphasise the urgent need for targeted conservation efforts to preserve the forest ecosystem services and their unique odonate diversity.

Aquatic Conservation Marine and Freshwater EcosystemsVol. 35(12)
Mbarara University of Science and Technology (UG), Justus-Liebig-Universität Gießen (DE), Makerere University (UG)
Openalex Percentile: Top 63%
Freshwater macroinvertebrate diversity and ecology
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