Assessing the Distribution, Density, and Morphological Diversity of Delonix regia in the University of Benin Campus using GPS and GIS Techniques

This research offers new understanding of how urban land use affects the ecology of Delonix regia, providing valuable data to guide urban forest planning and tree conservation efforts.Specifically, this study utilized GPS and GIS techniques to investigate the distribution, density, and morphological characteristics of D. regia within the University of Benin campus, Nigeria.Twenty trees were sampled across various land-use types, including pedestrian zones, green spaces, and built-up areas.The study revealed that land-use patterns significantly influence tree growth, development, and seed characteristics.Morphological analysis showed significant variability in tree length (mean: 38.3 cm), shade radius (mean: 1116.6 cm), and diameter at breast height (DBH) (range: 22.1 -116.2 cm).Pod and seed morphometry revealed significant differences in pod dry weight (range: 78.90 -105.5 g), seed length (coefficient of variation (CV): 2.67%), and seed thickness (CV: 3.81%).Physiological analysis showed variability in water imbibition capacity (range: 7.14-44.68%),seed volume (range: 103.26-107.31cm), and germination rates (range: 5.13 -53.29%) among the seed samples.These findings highlight the complex interplay between land-use patterns and the growth, development, and reproductive success of Delonix regia within the urban environment.This research emphasizes the importance of considering these factors for effective urban forestry management and the conservation of this valuable tree species.