Biological invasions threaten global biodiversity and natural resources. Anticipating future is central to strategies for combating the spread of invasive species. Ecological niche models are thus increasingly used predict potential distribution In this study, we compare ecological niches

Mexican sunflower, Tithonia diversifolia (Asteraceae), is an invasive tropical plant species native to Central America. It has spread in more than 70 countries across Asia, Africa and Australia. In Africa, this known disturb crops communities, but its negative impacts remain underestimated. Moreover, potential invasion risk not been investigated so far. A fundamental aspect the identification prediction of habitats susceptible biological invasions lies ability organism conserve or change...

Screen house experiments were carried out to examine the effects of aqueous leaf extracts Tithonia diversifolia (Ti) and Vernonia amygdalina (Ve), as well NPK fertilizer (15-15-15) on germination, growth development maize. Fresh leaves collected, washed with tap water, chopped pounded, soaked in distilled water filtered. The two filtrates used prepare at 50 100% w/v. Four maize seeds placed Petri dishes laid a completely randomized design five replicates. In every dish 10 ml extract per...

Ibodi Monkey Forest (IMF) is one of the least studied forest reserves in Nigeria. This being increasingly subjected to anthropic actions. There dearth information on Carbon sequestration potential this forest. We investigated distribution patterns pools and overall potentials different physiognomies Forest. identified three IMF based levels anthropogenic interferences as follows: Regrowth (RF), Cocoa Plantation (CP), Tree Fallow (TF). Four plots (25 × 25 m2) were randomly selected within...

Background and Objectives: The recent use of Structure-from-Motion with Multi-View Stereo photogrammetry (SfM-MVS) in forestry has underscored its robustness tree mensuration. This study evaluated the differences metrics resulting from various related SfM-MVS photogrammetric image acquisition scenarios. Materials Methods: Scaled tri-dimensional models 30 savanna trees belonging to five species were built photographs acquired a factorial design shooting distance (d = 1, 2, 3, 4 5 m away tree)...

Abstract Recent applications of digital photogrammetry in forestry have highlighted its utility as a viable mensuration technique. However, tropical regions little research has been done on the accuracy this approach for stem volume calculation. In study, performance Structure from Motion estimating individual tree relation to traditional approaches was evaluated. We selected 30 trees five savanna species growing at periphery W National Park northern Benin and measured their circumferences...

There is an increase in the use of photogrammetric point clouds for tree attribute mensuration. Stem diameter and circumference can be estimated from using stem disks varying thicknesses along bole. However, there a dearth information on effect thickness cloud-based accuracy estimations. In this study, we outlined GIS-based procedure analysing Structure Motion-derived with view to providing optimal disk accurate estimates. Geo-referenced were created photographs 30 trees belonging five...

Understanding the relationship between tree species diversity and above-ground carbon (AGC) storage in tropical forests is essential for a sustainable flow of ecosystem goods services. Although Vietnam are particular interest due to their high biodiversity density, few studies have evaluated relative importance composition, forest structure on AGC by vegetation type. In this study, we tested influence taxonomic diversity, composition evergreen broad-leaved deciduous Southeast Vietnam. Data...

Background: Phytophthora megakarya is an invasive pathogen endemic to Central and West Africa. This species causes the most devastating form of black pod disease. Despite deleterious impacts this disease on cocoa production, there no information geographic distribution P. megakarya.
 Aim: In study, we investigated potential in cocoa-producing regions world using ecological niche modelling.
 Methods: Occurrence records Africa were compiled from published studies. We selected...

Abstract Striga species are highly invasive annual parasitic plants posing significant economic losses to the production of cereal grains and legumes in Africa. There is no explicit knowledge about potential distribution some important In this study, we used Maximum Entropy modelling algorithm (MaxEnt 3.4) identify bioclimatic variables that best explain current geographic three most aggressive Present‐day climatically suitable areas were estimated at 14.53 million km 2 ( S. asiatica ),...

The effects of decaying leaf litter Tithonia diversifolia and Vernonia amygdalina as organic fertilizer, inorganic fertilizer (NPK 15-15-15) their combination on the growth development maize were studied in a screen house. Twenty-four experimental bags filled with 20 kg loamy soil laid out completely randomized design six treatments four replications for each treatment which included: 250 g leaves T. mulch (T1), V. (T2), 1.52 NPK (inorganic) (T3), mixture 15-15-15 (T4), (T5) control (T6)....

The authors declare that they have no competing financial interests influenced the work reported in this paper. data supporting findings of study are available on request from corresponding author.