A5088019811- Plant Diversity and Evolution
- Fern and Epiphyte Biology
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- African Botany and Ecology Studies
- Plant and Fungal Species Descriptions
- Genetic diversity and population structure
- Botany and Plant Ecology Studies
- Ethnobotanical and Medicinal Plants Studies
- Species Distribution and Climate Change
- Genomics and Phylogenetic Studies
- Advances in Cucurbitaceae Research
- Essential Oils and Antimicrobial Activity
- Pharmacological Effects of Medicinal Plants
- Botany, Ecology, and Taxonomy Studies
- Plant Parasitism and Resistance
- Aquatic Ecosystems and Phytoplankton Dynamics
- Plant Pathogens and Fungal Diseases
- Chromosomal and Genetic Variations
- Seed and Plant Biochemistry
- Phytase and its Applications
- Biological Control of Invasive Species
- Agriculture, Plant Science, Crop Management
- Freshwater macroinvertebrate diversity and ecology
- Mediterranean and Iberian flora and fauna
National Museums of Kenya
2014-2024
International Union for Conservation of Nature
2022
Abstract Aim Gondwanan vicariance, boreotropical migration and long‐distance dispersal have been posited as alternative hypotheses explaining the tropical distribution patterns diversifications in many fern groups. Here, historical biogeography of Diplazium is reconstructed to evaluate impact these biogeographical processes shaping modern disjunctions. Location World‐wide with a focus on forest habitats. Methods Divergence times were estimated by analysing nucleotide sequences seven plastid...
The brake fern genus Pteris belongs to the Pteridaceae subfamily Pteridoideae. It contains 200-250 species distributed on all continents except Antarctica, with its highest diversity in tropical and subtropical regions. monophyly of has long been question because great morphological controversial relationships Australian endemic monospecific Platyzoma. circumscription Pteridoideae likewise uncertain. Previous studies typically had sparse sampling related genera used limited DNA sequence...
Abstract Polyploidy is widely considered as a major process in the evolution of plants but accumulation polyploid species diversity still controversial. Some recent studies proposed increased extinction risk neopolyploids compared with their diploid ancestors. The high proportion ferns expected to be formed mainly by neopolyploids, whereas paleopolyploid are predicted clustered clades founded whole genome duplications. Here, we test this prediction exploring polyploidy derived fern family...
Rural communities in Kenya largely depend on plant resources for their livelihood. The utilization of these depends the availability and level knowledge residents. We conducted an ethnobotanical study Tharaka-Nithi County to determine various species by local communities. was four major administrative regions from June 2018 February 2019, involving interview schedules using semi-structured open-ended questionnaires guided field collections with 48 informants. A total 214 distributed 73...
Abstract Aim North‐west Africa, because of its position at the crossroads between Macaronesia and Iberian Peninsula, has played an important role on emergence maintenance Mediterranean plant diversity. In this study, we reconstruct phylogeographical history a lineage bellflowers comprising north African‐south species Campanula kremeri Canarian occidentalis ( Azorina ‐group), to investigate genetic imprints left by past climatic palaeogeographical events northern African flora. Location...
Many African genera of the Amaranthaceae exhibit unique inflorescences that include sterile flowers modified to hooks or spines. Considering abundance large terrestrial herbivores increased on continent with expansion grassland and savannah ecosystems, could have been an innovation boosted diversification achyranthoid clade Amaranthaceae, animals serving dispersal.
Members of the aquatic plant genus Aponogeton are widely used commercially in aquariums because their variable leaf shape and unique inflorescences. However, due to extensive similarity between species this genus, morphological characters generally inadequate for taxonomic classification. Currently, molecular makers available phylogenetic studies limited. One approach clarifying relationships these complex groups is use divergence hotspot regions within genome. Here, we sequenced analyzed...
At the Mbololo locality of endemic African violet (Streptocarpus teitensis, Gesneriaceae) in Taita Hills, Kenya, a new species Dorstenia (Moraceae) was discovered. It is described here and illustrated with photographs.
Abstract In this review, we explore our current understanding of the fern and lycophyte diversity occurring in Eastern Afromontane Biodiversity Hotspot (EABH). The review explores species region context Afromadagascan pteridophyte based on an exhaustive list assembled synopsis pteridophytes published by Roux 2009. was updated incorporating recent progress taxonomy phylogeny these plants. Evidence for a distinct flora East African mountain discovered using ordination clustering analyses. This...
Four new species of Hymenasplenium (Aspleniaceae) from Africa and Asia are here described based on both morphological molecular evidence. These four include H. guineense kenyense mainland sabahense wusugongii Asia. have been erroneously treated as unilaterale by earlier pteridologists. The information their distributions, habitats, major distinguishing characters these provided.
The Aberdare Ranges Forest, located in the Central highlands of Kenya, is an isolated volcanic mountain East African Rift Valley with unique flora. Despite its refugial importance to rare and endemic plant species, diversity plants Forest remains poorly understood. checklist presented here a collation data obtained from multiple floristic surveys herbarium specimen collections forest. A total 1260 vascular taxa representing 136 families, 613 genera, 67 subspecies 63 varieties are documented....
We compiled a checklist of the flora South and North Nandi forests based on literature, online databases, herbarium collections floristic field surveys. A combination general walk-over surveys plotless landscape sampling for plant collection sight observation was used. recorded 628 species representing 118 families 392 genera, which almost double latest results previous most recent survey. found 61 ferns fern allies 567 seed plants, 9.98% total in Kenya. Herbs were majority (50.2%) life...
The biological condition gradient (BCG), a scientific framework that describes the change in ecosystem characteristics response to human-induced levels of stressors, was modified and used characterize watershed habitats Upper Tana River watershed, Kenya. inbuilt utilities BCG, including its simplicity, versatility, robust nature, allowed use by seven taxonomic groups macroinvertebrates, diatoms, fish, herpetofauna (amphibians reptiles), plants, macrofungi, birds assess monitor landscape...
In this data paper, we present a specimen-based occurrence dataset compiled in the framework of Conservation Endemic Central African Trees (ECAT) project with aim producing global conservation assessments for IUCN Red List. The targets all tree species endemic or sub-endemic to region comprising Democratic Republic Congo (DR Congo), Rwanda, and Burundi. contains 6361 plant collection records occurrences 8910 specimens from 337 taxa belonging 153 genera 52 families. Many these have restricted...
Abstract Climate change is predicted to affect species in aquatic ecosystems. In Africa, factors that may influence the responses of are poorly studied and challenging predict. this study, we examined potential distribution three fern genus Azolla Africa under projected climate scenarios. MaxEnt was used create ecological niche models using occurrence data environmental variables. All had satisfactory AUC TSS values, indicating high prediction precision (AUC > 0.801). Results showed...
ABSTRACT Aim Ferns are globally distributed, yet the number of studies examining historical evolution African taxa is relatively low. Investigation fern diversity critical in order to understand patterns and processes that have global relevance (e.g., pantropical disparity [PDD] pattern). This study aims examine when from where a distributed lineage arrived sub‐Saharan Africa, obtain better understanding potential contributing across region. Location Global, Africa. Taxon Asplenium...
Zehneria grandibracteata , a new species of Cucurbitaceae from western Kenya, is described here, based on morphological and molecular data. It has long been misidentified as the widely-distributed Z. scabra . However, it differs by its ovate leafy probract at base inflorescences, subglabrous condition entire plant, shorter receptacle-tube filaments, well denser sessile inflorescences. Furthermore, phylogenetic analysis nrITS sequences, further supports argument that should be segregated
Polystachya danielana, a new species from Kenya based on evidence morphology and molecular phylogenetics is described illustrated here. It closely related to P. spatella kermesina, but distinguished these two mainly by its pseudobulbs mostly arising the nodes near base of previous growth with only few middle or upper nodes, leaves narrowly oblong obovate-lanceolate, 2–8 × 1–2 cm, bracts oblong, ca. 4 3 mm, apex emarginate caudate tip, ovary purple, dorsal sepal subovate, 5.0–7.0 3.0–4.5...
Coccinia subsessiliflora (Cucurbitaceae) is newly recorded for Kenya, from South Nandi Forest. A morphological description and notes on its distribution ecology are provided. molecular phylogenetic analysis of 22 species based the nuclear DNA sequence LEAFY-like 2nd intron was conducted, position C. indicated.