Publications by authors named "Shiiwua Manu"
Article Synopsis
- Birds in tropical environments have varied life cycle timings due to consistent daylight hours, which have been under-researched in phenology studies.
- A study in Nigeria and Cameroon focused on common bulbuls, tracking their breeding and moult over a year while also examining local fruit and arthropod populations.
- Findings revealed that moult and breeding patterns differed significantly between the two sites, highlighting the influence of environmental factors like precipitation and resource availability on bird life cycles, which is crucial for conservation efforts.
Omnivores utilize dietary sources which differ in nutrients, hence dietary limitations due to environmental change or habitat alteration could cause nutrient limitations, and thus deterioration of body condition if omnivory is obligate. We investigated how the body condition of the omnivorous Village weaver (weavers), which forages predominantly on grains, responds to the supplementation of its grain diet with insects instead of fruits. Forty wild-caught weavers held in aviaries were fed a combination of grains and fruits, or grains and insects ad libitum for 8 weeks.
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- Habitat destruction is a major cause of biodiversity loss, and existing research lacks standardization in data collection and analysis, making it hard to draw firm conclusions.
- A systematic review of the literature yielded 117 studies on species composition in various habitat sizes, revealing a concentration of research in tropical forests, while also covering a range of species including invertebrates and vertebrates.
- The gathered data on species abundances, sampling efforts, and additional metadata will help create standardized comparisons to better understand how habitat fragmentation impacts biodiversity.
We described the geographic distribution of 82 haemosporidian lineages (Plasmodium, Haemoproteus, and Leucocytozoon) in the cattle egret sampled in five countries in central-western and southern Africa. Seventy-three lineages have not previously been reported. We determined the prevalence of three haemosporidians in the samples.
View Article and Find Full Text PDFThe highly pathogenic avian influenza (H5N1 subtype) recurred in Nigeria after 9 months period of no reported case. A critical look at possible sources of the re-occurrence was desirable. The objective of this study was to determine whether avian influenza viruses were present at reasonably detectable levels (0.
View Article and Find Full Text PDFTo investigate the presence and persistence of avian influenza virus in African birds, we monitored avian influenza in wild and domestic birds in two different regions in Nigeria. We found low-pathogenic avian influenza (LPAI) H5N2 viruses in three spur-winged geese (Plectropterus gambensis) in the Hadejia-Nguru wetlands. Phylogenetic analyses revealed that all of the genes, except the non-structural (NS) genes, of the LPAI H5N2 viruses were more closely related to genes recently found in wild and domestic birds in Europe.
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