Extended Data Fig. 7: Dependency of the scaled per capita population growth rate on the exponent of the aggregation-abundance relationship. | Nature

Extended Data Fig. 7: Dependency of the scaled per capita population growth rate on the exponent of the aggregation-abundance relationship.

From: Latitudinal scaling of aggregation with abundance and coexistence in forests

Extended Data Fig. 7: Dependency of the scaled per capita population growth rate on the exponent of the aggregation-abundance relationship.The alt text for this image may have been generated using AI.

a, Examples for the influence of the exponent bf on the scaled per capita population growth rate of the species Castanopsis acuminatissima from the Mo Singto (MST) plot in Thailand with parameters bf = –0.3, Nf* = 291, J = 15,665, rf = 0.136/∆t, kff = 6.27, kfh = 1.02, Bf = 1 and c = 0.000314. The dashed vertical line indicates the small abundance of Ns = 10. b, same as a), but for niche differences (Bf = 0.692). c, and d, same as a) and b), but with immigration parameter vf = 0.1. e, and f, examples for the scaled per capita population growth rate of species at the CBS plot, which showed a power law exponent of bf = −1.077, for scenario 2 with niche differences (i.e., Bf < 1). We assumed that individuals compete at the individual scale more strongly if they are phylogenetically more similarity. The species acronyms: ACEMON (Acer mono), ACEPSE (A. pseudosieboldianum), ACETEG (A. tegmentosum), FRAMAN (Fraxinus mandshurica), PINKOR (Pinus koraiensis), QUEMON (Quercus mongolica), TILAMU (Tilia amurensis), ULMJAP (Ulmus japonica).

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