Table 1 Description of the mechanical and chemical properties of 20 tree species occurring in Sebitoli chimpanzee habitat.
Scientific name | Chemical | Biomechanical and morphological | Rank presence in habitat | |||
|---|---|---|---|---|---|---|
Spatial repellent | Foliar form | Foliar density (cm) | Branch flexural rigidity: EI (N m2) | Young’s elastic modulus: E (GPa) | ||
NESTING TREE SPECIES (> 1% nests) | ||||||
Diospyros abyssinica (Hiern) F.White (27.8%) | Yes | Middle | 2.17 ± 0.54 | 3.20 ± 2.83 | 3.00 ± 3.25 | 2nd |
Strombosia schefflerii Engl. (18.7%) | No | Middle | 3.79 ± 0.64 | 7.20 ± 9.33 | 4.52 ± 4.51 | 8th |
Vepris nobilis (Delile) Mziray (8.6%) | Yes | Middle | 2.97 ± 0.54 | 2.95 ± 1.88 | 5.80 ± 6.00 | 29th |
Lepisanthes senegalensis (Poir.) Leenh. (7.0%) | Yes | Middle | 3.28 ± 0.95 | 5.11 ± 4.66 | 2.39 ± 2.14 | 23rd |
Turraeanthus africanus (Welw. Ex C.DC.) Pellegr. (5.8%) | Yes | Middle | 2.36 ± 0.30 | 7.37 ± 4.38 | 0.85 ± 0.33 | 60th |
Croton megalocarpus Hutch. (4.4%) | Yes | Middle | 1.09 ± 0.25 | 5.88 ± 8.91 | 1.30 ± 1.14 | 7th |
Celtis gomphophylla Baker (3.2%) | No | Middle | 2.17 ± 0.32 | 3.49 ± 3.50 | 1.01 ± 0.58 | 5th |
Olea welwitschii (Knobl.) Gilg & G.Schellenb. (2.3%) | No | Middle | 2.71 ± 0.92 | 5.80 ± 3.62 | 1.75 ± 0.90 | 50th |
Eucalyptus grandis W.Hill ex Maiden (2.0%) | Yes | Middle | 1.61 ± 0.47 | 5.09 ± 3.38 | 1.63 ± 0.95 | 1st |
Noronhia africana (Knobl.) Hong-Wa & Besnard (1.8%) | Yes | Middle | 3.05 ± 0.71 | 4.68 ± 3.25 | 1.30 ± 2.03 | 25th |
ABUNDANT TREE SPECIES (< 1% nests and > 1% of trees in the habitat31) | ||||||
Trilepisium madagascariense DC. (0.6%) | No | Small | 2.91 ± 0.73 | 2.02 ± 2.70 | 0.83 ± 0.97 | 10th |
Chrysophyllum albidum G.Don (0.4%) | No | Small | 2.75 ± 0.05 | 4.02 ± 2.93 | 0.93 ± 0.59 | 20th |
Uvariopsis congensis Robyns & Ghesq. (0.3%) | Yes | Small | 2.26 ± 0.43 | 5.15 ± 3.90 | 1.71 ± 0.89 | 8th |
Neoboutonia macrocalyx Pax (0.3%) | No | Large | 3.08 ± 0.81 | 8.36 ± 7.23 | 0.91 ± 0.52 | 12th |
Euadenia eminens Hook.f. (0.3%) | No | Small | 3.22 ± 0.16 | 4.24 ± 2.97 | 0.75 ± 0.46 | 15th |
Tabernaemontana pachysiphon Stapf (0.1%) | No | Large | 13.49 ± 4.56 | 4.11 ± 4.79 | 0.78 ± 0.66 | 13th |
Newtonia buchananii (Baker) G.C.C.Gilbert & Boutique (0.1%) | No | Small | 0.10 ± 0.05 | 2.93 ± 3.90 | 0.95 ± 0.62 | 14th |
Celtis africana Burm.f. (0.1%) | Yes | Middle | 3.29 ± 0.73 | 4.52 ± 4.77 | 1.59 ± 1.33 | 16th |
Carapa grandiflora Sprague (0%) | Yes | Large | 6.45 ± 1.01 | 8.84 ± 7.90 | 1.57 ± 1.09 | 6th |
Alangium chinense (Lour.) Harms (0%) | No | Large | 4.88 ± 1.03 | 5.80 ± 4.55 | 1.89 ± 1.18 | 21st |
