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Biodiversity Journal 2025, 16 (2): 195-

  • Biodiversity Journal, 16 (2): 197-210

    Samuel Didier Makon, Wuibe Woubassie Ulrich Sidoine, Paul Arnaud Mballa Ndzie, Giovanni Oscar Titti Ebangue & Paul Serge Mbenoun Massé
    Alpha and beta diversity and distribution pattern of millipedes (Myriapoda Diplopoda) along an altitudinal gradient in Southern Cameroon rainforest
    https://doi.org/10.31396/Biodiv.Jour.2025.16.2.197.210

    ABSTRACT
    Mountainous regions serve as critical ecosystems that promote endemism and serve as biodiversity hotspots, supporting a wide array of species, including millipedes. As one of the most important bioindicator groups, millipedes are particularly sensitive to habitat loss and tend to thrive in specific ecological niches. This study investigates the influence of altitudinal gradient on the community structure and assemblages of millipedes in southern Cameroon rainforest. Millipedes were sampled using a combination of pitfall traps, quadrat sampling, and litter sifting across three distinct elevational zones and vegetation types (0–400 m, 401–800 m, and 801–1200 m above sea level). A total of 994 individuals representing 71 species, 4 orders, 12 families, and 41 genera were recorded. The order Polydesmida was the most abundant and diverse (comprising 60.56% of the total sample and 35 species), followed by Spirostreptida (28.67% and 31 species) and Spirobolida (9.25% and 4 species). Cryptodesmidae was the most abundant family, while the least abundant was Spirostreptidae. The most abundant species was Aporodesmus gabonicus (29.38%), followed by Kartinikus colonus (7.75%) and Aporodesmus falcatus (5.73%). Along the altitudinal gradient, the millipede diversity increased slightly from lower level (H1’ = 1.32±0.15) (0-400 m asl) to transitional level (H2’ = 1.56±0.13) (401-800 m asl), and reached a maximum in upper level (H3’ = 1.98±0.18) (801 m to 1200 m asl). This distribution pattern of millipede in diversity suggests biotic homogenization as main factor leading to the weak dissimilarity of species between different altitudinal zones and the replacement of habitat specific species by opportunist or cosmopolitan species. This study provides valuable insights into the biogeography of millipede species along altitudinal gradients and offers essential information that could inform future conservation strategies aimed at preserving these sensitive ecosystems.

  • Biodiversity Journal, 16 (2): 211-218

    Reginald A. Omboy, Nathan Rhianiel Q. Delos Reyes, Erlj Brandon T. Beros, Kurt Dearon T. Verana, Xirxes Vhon D. Tanquion, Jhovel Roy D. Calo & Ian Jay P. Saldo
    Inventory and assessment of carnivorous Pitcher Plants (Caryophyllales Nepenthaceae) in Mt. Kalindog, Kalabugao, Impasug-Ong, Bukidnon, Philippines
    https://doi.org/10.31396/Biodiv.Jour.2025.16.2.211.218

    ABSTRACT
    Kalabugao, an area nestled within the lush landscapes of Bukidnon, Philippines, boasts a diverse and rich ecosystem that provides an ideal habitat for pitcher plants to thrive. Despite that, very few studies have been conducted related to pitcher plants. The study assessed carnivorous pitcher plant species in Mt. Kalindog, Kalabugao, Impasug-ong, Bukidnon, Philippines. A total of 3 individual species belonging to 1 family and 1 genus were identified. Among the pitcher plants found, 1 has been discovered to be endangered. Two pitcher plants were found to be vulnerable. Due to the disturbance of the area, pitcher plant diversity and species richness were relatively low. Furthermore, conducting enhanced investigations and establishing additional sampling plots in various regions of Mt. Kalindog, Kalabugao, Impasug-Ong, and Bukidnon, Philippines, will help better understand the spatial distribution of pitcher plant species given the Mountain’s significant potential as a healthy habitat for pitcher plants and promote conservation.

  • Biodiversity Journal, 16 (2): 219-222

    Tamer Mahmoud, Hatem A. Shabana & Sanjay Gairola
    Caudanthera edulis (Edgew.) Meve & Liede (Apocynaceae): a new record for the flora of the United Arab Emirates
    https://doi.org/10.31396/Biodiv.Jour.2025.16.2.219.222

    ABSTRACT
    Caudanthera edulis (Edgew.) Meve & Liede, a perennial succulent herb, belonging to the family Apocynaceae, has been documented as a new record for the flora of the United Arab Emirates (UAE). A description of the species, distribution and habitat ecology, and its importance is provided. This new record highlights the importance of continued botanical exploration in the region to document and understand the plant diversity.

  • Biodiversity Journal, 16 (2): 223-227

    Davide Cillo, Fabrizio Fabbriciani, Andrea Marata & Angelo Pennisi
    Faunistic updates of some Scarabeoidea species of the Corso-Sardinian region (Insecta Coleoptera)
    https://doi.org/10.31396/Biodiv.Jour.2025.16.2.223.227

    ABSTRACT
    New records concerning three species of Scarabaeoidea beetles recently collected in Corsica and Sardinia are given: Anoplotrupes stercorosus (Hartmann in Scriba, 1791) new to Corsica, Amphimallon solstitiale tropicum (Gyllenhal, 1817) and Anomala dubia dubia (Scopoli, 1763) definitively confirmed for Sardinia.

  • Biodiversity Journal, 16 (2): 229-232

    Angelo Ditta & Salvatore Surdo
    Discovery of new populations in Mazara del Vallo (Sicily, Italy) of Galium litorale Guss. (Rubiaceae): a naturally rare species with a small distribution area
    https://doi.org/10.31396/Biodiv.Jour.2025.16.2.229.232

    ABSTRACT
    Galium litorale Guss. (Rubiaceae) is an endemic species of south-western Sicily (Italy) with a very restricted natural range of distribution, confined to a system of calcareous outcrops lo cated along the coastal stretches of the Trapani territory, but circumscribed and fragmented between Marsala and Selinunte. The overall knowledge of the real conservation status of Galium litorale in south-western Sicily is poor and is limited to the discovery of a few populations, but some research carried out between 2024 and 2025 in this area, has allowed us to census numerous new populations that are useful for a better understanding of the distribution and protection of this species.