Claim · model-written summary
Site B (Model School) had a higher Shannon-Wiener diversity index (H′ = 2.78).
- Taxon
- Woody Plant Speciest0
- Outcome
- Shannon–Wiener Diversity Indexe0
- Direction
- highere0
- Value
- 2.78e0
- Setting
- Site Be0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorQualifier
Verbatim
t0“Woody Plant Species”
e0“Site B recorded a higher Shannon–Wiener Diversity Index ( H ′ = 2.78) and an Evenness Index ( J ′ = 0.928)”
Title
Woody Plant Species Diversity in Haramaya University Main Campus, Eastern Ethiopia
Zelalem Nurlign Getahun; Anteneh Belayneh Desta; Hussen Yimer Abate International Journal of Forestry Research 2026. doi:10.1155/ijfr/4886338
Other claims from this paper (15)
- Observation A total of 569 individuals representing 29 unique woody species were identified in 16 quadrats at Haramaya University.
- Observation Site B had an evenness index of J′ = 0.928.
- Observation Site A (College of Agricultural and Environmental Sciences) showed lower diversity (H′ = 2.31).
- Observation Site A had an evenness index of J′ = 0.815.
- Observation Site A had a significantly higher Simpson dominance index (D = 0.1465), double that of Site B (D = 0.0752).
- Observation An independent-sample t-test on per-plot values showed the higher structural diversity at Site B was statistically significant (t(14) = 2.45, p = 0.028).
- Observation Celtis africana was a major structural driver across both sites, with a relative density of 29.7%.
- Observation Celtis africana had a modified two-component Importance Value Index of 35.80% in Site A.
- Observation A Jaccard similarity index of 27.59% indicated high beta-diversity between the two study sites.
- Observation Lantana camara (IVI = 33.7%) has established substantial ecological presence.
- Observation Jacaranda mimosifolia (IVI = 19.5%) has established substantial ecological presence.
- Observation Podocarpus falcatus, an indigenous target timber species, had a low importance value index (5.5%).
- Observation Juniperus procera, an indigenous target timber species, had a low importance value index (12%).
- Observation The authors conclude that the campus is transitioning toward a novel ecosystem structure.
- Recommendation The authors recommend targeted suppression of invasive species and enrichment planting of native hardwoods to maintain the Afromontane character.